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-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-pca953x.txt1
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-tps65086.txt16
-rw-r--r--Documentation/devicetree/bindings/pinctrl/brcm,nsp-gpio.txt80
-rw-r--r--MAINTAINERS9
-rw-r--r--arch/avr32/mach-at32ap/pio.c2
-rw-r--r--drivers/bcma/driver_gpio.c2
-rw-r--r--drivers/gpio/Kconfig28
-rw-r--r--drivers/gpio/Makefile1
-rw-r--r--drivers/gpio/gpio-104-idi-48.c349
-rw-r--r--drivers/gpio/gpio-104-idio-16.c145
-rw-r--r--drivers/gpio/gpio-74x164.c72
-rw-r--r--drivers/gpio/gpio-adnp.c20
-rw-r--r--drivers/gpio/gpio-altera.c2
-rw-r--r--drivers/gpio/gpio-amd8111.c2
-rw-r--r--drivers/gpio/gpio-amdpt.c18
-rw-r--r--drivers/gpio/gpio-arizona.c2
-rw-r--r--drivers/gpio/gpio-ath79.c4
-rw-r--r--drivers/gpio/gpio-bcm-kona.c6
-rw-r--r--drivers/gpio/gpio-crystalcove.c2
-rw-r--r--drivers/gpio/gpio-davinci.c8
-rw-r--r--drivers/gpio/gpio-dln2.c10
-rw-r--r--drivers/gpio/gpio-em.c4
-rw-r--r--drivers/gpio/gpio-f7188x.c4
-rw-r--r--drivers/gpio/gpio-generic.c2
-rw-r--r--drivers/gpio/gpio-ich.c2
-rw-r--r--drivers/gpio/gpio-intel-mid.c2
-rw-r--r--drivers/gpio/gpio-janz-ttl.c6
-rw-r--r--drivers/gpio/gpio-kempld.c2
-rw-r--r--drivers/gpio/gpio-lp3943.c2
-rw-r--r--drivers/gpio/gpio-lpc18xx.c2
-rw-r--r--drivers/gpio/gpio-lynxpoint.c2
-rw-r--r--drivers/gpio/gpio-max7300.c1
-rw-r--r--drivers/gpio/gpio-max730x.c2
-rw-r--r--drivers/gpio/gpio-max732x.c5
-rw-r--r--drivers/gpio/gpio-mb86s7x.c2
-rw-r--r--drivers/gpio/gpio-mc33880.c2
-rw-r--r--drivers/gpio/gpio-mc9s08dz60.c3
-rw-r--r--drivers/gpio/gpio-mcp23s08.c16
-rw-r--r--drivers/gpio/gpio-moxart.c2
-rw-r--r--drivers/gpio/gpio-mpc5200.c17
-rw-r--r--drivers/gpio/gpio-msic.c2
-rw-r--r--drivers/gpio/gpio-mvebu.c2
-rw-r--r--drivers/gpio/gpio-octeon.c4
-rw-r--r--drivers/gpio/gpio-omap.c4
-rw-r--r--drivers/gpio/gpio-palmas.c14
-rw-r--r--drivers/gpio/gpio-pca953x.c116
-rw-r--r--drivers/gpio/gpio-pcf857x.c3
-rw-r--r--drivers/gpio/gpio-pch.c5
-rw-r--r--drivers/gpio/gpio-pl061.c21
-rw-r--r--drivers/gpio/gpio-pxa.c386
-rw-r--r--drivers/gpio/gpio-rc5t583.c2
-rw-r--r--drivers/gpio/gpio-rcar.c90
-rw-r--r--drivers/gpio/gpio-sch.c2
-rw-r--r--drivers/gpio/gpio-sch311x.c8
-rw-r--r--drivers/gpio/gpio-spear-spics.c2
-rw-r--r--drivers/gpio/gpio-stmpe.c2
-rw-r--r--drivers/gpio/gpio-stp-xway.c4
-rw-r--r--drivers/gpio/gpio-sx150x.c3
-rw-r--r--drivers/gpio/gpio-syscon.c4
-rw-r--r--drivers/gpio/gpio-tb10x.c2
-rw-r--r--drivers/gpio/gpio-tc3589x.c2
-rw-r--r--drivers/gpio/gpio-timberdale.c2
-rw-r--r--drivers/gpio/gpio-tps6586x.c2
-rw-r--r--drivers/gpio/gpio-tps65910.c2
-rw-r--r--drivers/gpio/gpio-tps65912.c2
-rw-r--r--drivers/gpio/gpio-ts5500.c5
-rw-r--r--drivers/gpio/gpio-twl4030.c4
-rw-r--r--drivers/gpio/gpio-twl6040.c6
-rw-r--r--drivers/gpio/gpio-tz1090-pdc.c2
-rw-r--r--drivers/gpio/gpio-tz1090.c2
-rw-r--r--drivers/gpio/gpio-vf610.c2
-rw-r--r--drivers/gpio/gpio-viperboard.c16
-rw-r--r--drivers/gpio/gpio-vr41xx.c4
-rw-r--r--drivers/gpio/gpio-wm831x.c2
-rw-r--r--drivers/gpio/gpio-wm8350.c2
-rw-r--r--drivers/gpio/gpio-wm8994.c2
-rw-r--r--drivers/gpio/gpio-xgene.c2
-rw-r--r--drivers/gpio/gpio-xilinx.c2
-rw-r--r--drivers/gpio/gpio-xlp.c2
-rw-r--r--drivers/gpio/gpio-zevio.c4
-rw-r--r--drivers/gpio/gpio-zx.c2
-rw-r--r--drivers/gpio/gpio-zynq.c25
-rw-r--r--drivers/gpio/gpiolib-acpi.c90
-rw-r--r--drivers/gpio/gpiolib-of.c4
-rw-r--r--drivers/gpio/gpiolib-sysfs.c5
-rw-r--r--drivers/gpio/gpiolib.c85
-rw-r--r--drivers/gpio/gpiolib.h10
-rw-r--r--drivers/hid/hid-cp2112.c2
-rw-r--r--drivers/input/touchscreen/ad7879.c2
-rw-r--r--drivers/leds/leds-pca9532.c6
-rw-r--r--drivers/leds/leds-tca6507.c2
-rw-r--r--drivers/media/dvb-frontends/cxd2820r_core.c2
-rw-r--r--drivers/mfd/dm355evm_msp.c2
-rw-r--r--drivers/mfd/htc-egpio.c2
-rw-r--r--drivers/mfd/htc-i2cpld.c4
-rw-r--r--drivers/mfd/tps65010.c2
-rw-r--r--drivers/mfd/ucb1x00-core.c2
-rw-r--r--drivers/pinctrl/bcm/Kconfig17
-rw-r--r--drivers/pinctrl/bcm/Makefile1
-rw-r--r--drivers/pinctrl/bcm/pinctrl-bcm2835.c8
-rw-r--r--drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c2
-rw-r--r--drivers/pinctrl/bcm/pinctrl-nsp-gpio.c749
-rw-r--r--drivers/pinctrl/intel/pinctrl-baytrail.c2
-rw-r--r--drivers/pinctrl/intel/pinctrl-cherryview.c2
-rw-r--r--drivers/pinctrl/intel/pinctrl-intel.c2
-rw-r--r--drivers/pinctrl/mediatek/pinctrl-mtk-common.c12
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson.c2
-rw-r--r--drivers/pinctrl/nomadik/pinctrl-abx500.c7
-rw-r--r--drivers/pinctrl/nomadik/pinctrl-nomadik.c8
-rw-r--r--drivers/pinctrl/pinctrl-amd.c2
-rw-r--r--drivers/pinctrl/pinctrl-as3722.c2
-rw-r--r--drivers/pinctrl/pinctrl-at91-pio4.c12
-rw-r--r--drivers/pinctrl/pinctrl-at91.c2
-rw-r--r--drivers/pinctrl/pinctrl-coh901.c2
-rw-r--r--drivers/pinctrl/pinctrl-digicolor.c2
-rw-r--r--drivers/pinctrl/pinctrl-pistachio.c2
-rw-r--r--drivers/pinctrl/pinctrl-rockchip.c2
-rw-r--r--drivers/pinctrl/pinctrl-st.c2
-rw-r--r--drivers/pinctrl/pinctrl-xway.c27
-rw-r--r--drivers/pinctrl/qcom/pinctrl-msm.c2
-rw-r--r--drivers/pinctrl/qcom/pinctrl-spmi-gpio.c2
-rw-r--r--drivers/pinctrl/qcom/pinctrl-spmi-mpp.c2
-rw-r--r--drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c2
-rw-r--r--drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c2
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos.c3
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos5440.c12
-rw-r--r--drivers/pinctrl/samsung/pinctrl-samsung.c2
-rw-r--r--drivers/pinctrl/sh-pfc/gpio.c2
-rw-r--r--drivers/pinctrl/sirf/pinctrl-atlas7.c2
-rw-r--r--drivers/pinctrl/sirf/pinctrl-sirf.c2
-rw-r--r--drivers/pinctrl/spear/pinctrl-plgpio.c2
-rw-r--r--drivers/pinctrl/sunxi/pinctrl-sunxi.c10
-rw-r--r--drivers/pinctrl/vt8500/pinctrl-wmt.c8
-rw-r--r--drivers/platform/x86/intel_pmic_gpio.c4
-rw-r--r--drivers/tty/serial/max310x.c2
-rw-r--r--drivers/tty/serial/sc16is7xx.c2
-rw-r--r--include/linux/gpio/driver.h4
-rw-r--r--include/linux/platform_data/gpio-rcar.h29
-rw-r--r--include/sound/ac97_codec.h3
-rw-r--r--sound/soc/codecs/rt5677.c2
-rw-r--r--sound/soc/codecs/wm5100.c2
-rw-r--r--sound/soc/codecs/wm8903.c2
-rw-r--r--sound/soc/codecs/wm8962.c2
-rw-r--r--sound/soc/codecs/wm8996.c2
-rw-r--r--sound/soc/soc-ac97.c125
145 files changed, 2290 insertions, 656 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
index 13df9933f4cd..6b4a98f74be3 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
@@ -25,6 +25,7 @@ Required properties:
ti,tca6416
ti,tca6424
ti,tca9539
+ onsemi,pca9654
exar,xra1202
Example:
diff --git a/Documentation/devicetree/bindings/gpio/gpio-tps65086.txt b/Documentation/devicetree/bindings/gpio/gpio-tps65086.txt
new file mode 100644
index 000000000000..ba051074bedc
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-tps65086.txt
@@ -0,0 +1,16 @@
+* TPS65086 GPO Controller bindings
+
+Required properties:
+ - compatible : Should be "ti,tps65086-gpio".
+ - gpio-controller : Marks the device node as a GPIO Controller.
+ - #gpio-cells : Should be two. The first cell is the pin number
+ and the second cell is used to specify flags.
+ See ../gpio/gpio.txt for possible values.
+
+Example:
+
+ gpio4: gpio {
+ compatible = "ti,tps65086-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,nsp-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,nsp-gpio.txt
new file mode 100644
index 000000000000..0844168a6dd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,nsp-gpio.txt
@@ -0,0 +1,80 @@
+Broadcom Northstar plus (NSP) GPIO/PINCONF Controller
+
+Required properties:
+- compatible:
+ Must be "brcm,nsp-gpio-a"
+
+- reg:
+ Should contain the register physical address and length for each of
+ GPIO base, IO control registers
+
+- #gpio-cells:
+ Must be two. The first cell is the GPIO pin number (within the
+ controller's pin space) and the second cell is used for the following:
+ bit[0]: polarity (0 for active high and 1 for active low)
+
+- gpio-controller:
+ Specifies that the node is a GPIO controller
+
+- ngpios:
+ Number of gpios supported (58x25 supports 32 and 58x23 supports 24)
+
+Optional properties:
+- interrupts:
+ Interrupt ID
+
+- interrupt-controller:
+ Specifies that the node is an interrupt controller
+
+- gpio-ranges:
+ Specifies the mapping between gpio controller and pin-controllers pins.
+ This requires 4 fields in cells defined as -
+ 1. Phandle of pin-controller.
+ 2. GPIO base pin offset.
+ 3 Pin-control base pin offset.
+ 4. number of gpio pins which are linearly mapped from pin base.
+
+Supported generic PINCONF properties in child nodes:
+- pins:
+ The list of pins (within the controller's own pin space) that properties
+ in the node apply to. Pin names are "gpio-<pin>"
+
+- bias-disable:
+ Disable pin bias
+
+- bias-pull-up:
+ Enable internal pull up resistor
+
+- bias-pull-down:
+ Enable internal pull down resistor
+
+- drive-strength:
+ Valid drive strength values include 2, 4, 6, 8, 10, 12, 14, 16 (mA)
+
+Example:
+
+ gpioa: gpio@18000020 {
+ compatible = "brcm,nsp-gpio-a";
+ reg = <0x18000020 0x100>,
+ <0x1803f1c4 0x1c>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ ngpios = <32>;
+ gpio-ranges = <&pinctrl 0 0 31>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+
+ /* Hog a few default settings */
+ pinctrl-names = "default";
+ pinctrl-0 = <&led>;
+ led: led {
+ pins = "gpio-1";
+ bias-pull-up;
+ };
+
+ pwr: pwr {
+ gpio-hog;
+ gpios = <3 1>;
+ output-high;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 233f83464814..400c142cf7e6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -240,6 +240,12 @@ L: lm-sensors@lm-sensors.org
S: Maintained
F: drivers/hwmon/abituguru3.c
+ACCES 104-IDI-48 GPIO DRIVER
+M: "William Breathitt Gray" <vilhelm.gray@gmail.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-104-idi-48.c
+
ACCES 104-IDIO-16 GPIO DRIVER
M: "William Breathitt Gray" <vilhelm.gray@gmail.com>
L: linux-gpio@vger.kernel.org
@@ -7794,11 +7800,12 @@ F: drivers/usb/*/*omap*
F: arch/arm/*omap*/usb*
OMAP GPIO DRIVER
-M: Javier Martinez Canillas <javier@dowhile0.org>
+M: Grygorii Strashko <grygorii.strashko@ti.com>
M: Santosh Shilimkar <ssantosh@kernel.org>
M: Kevin Hilman <khilman@deeprootsystems.com>
L: linux-omap@vger.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/gpio/gpio-omap.txt
F: drivers/gpio/gpio-omap.c
OMAP/NEWFLOW NANOBONE MACHINE SUPPORT
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 4f61378c3453..aa74491771fa 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -397,7 +397,7 @@ static int __init pio_probe(struct platform_device *pdev)
pio->chip.label = pio->name;
pio->chip.base = pdev->id * 32;
pio->chip.ngpio = 32;
- pio->chip.dev = &pdev->dev;
+ pio->chip.parent = &pdev->dev;
pio->chip.owner = THIS_MODULE;
pio->chip.direction_input = direction_input;
diff --git a/drivers/bcma/driver_gpio.c b/drivers/bcma/driver_gpio.c
index 504899a72966..949754427ce2 100644
--- a/drivers/bcma/driver_gpio.c
+++ b/drivers/bcma/driver_gpio.c
@@ -188,7 +188,7 @@ int bcma_gpio_init(struct bcma_drv_cc *cc)
chip->direction_input = bcma_gpio_direction_input;
chip->direction_output = bcma_gpio_direction_output;
chip->owner = THIS_MODULE;
- chip->dev = bcma_bus_get_host_dev(bus);
+ chip->parent = bcma_bus_get_host_dev(bus);
#if IS_BUILTIN(CONFIG_OF)
if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
chip->of_node = cc->core->dev.of_node;
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b18bea08ff25..b60f40a423f3 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -496,8 +496,21 @@ menu "Port-mapped I/O GPIO drivers"
config GPIO_104_IDIO_16
tristate "ACCES 104-IDIO-16 GPIO support"
+ select GPIOLIB_IRQCHIP
+ help
+ Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
+ address for the device may be set via the idio_16_base module
+ parameter. The interrupt line number for the device may be set via the
+ idio_16_irq module parameter.
+
+config GPIO_104_IDI_48
+ tristate "ACCES 104-IDI-48 GPIO support"
+ select GPIOLIB_IRQCHIP
help
- Enables GPIO support for the ACCES 104-IDIO-16 family.
+ Enables GPIO support for the ACCES 104-IDI-48 family. The base port
+ address for the device may be configured via the idi_48_base module
+ parameter. The interrupt line number for the device may be configured
+ via the idi_48_irq module parameter.
config GPIO_F7188X
tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
@@ -907,7 +920,6 @@ menu "PCI GPIO expanders"
config GPIO_AMD8111
tristate "AMD 8111 GPIO driver"
- depends on PCI
help
The AMD 8111 south bridge contains 32 GPIO pins which can be used.
@@ -919,7 +931,7 @@ config GPIO_AMD8111
config GPIO_BT8XX
tristate "BT8XX GPIO abuser"
- depends on PCI && VIDEO_BT848=n
+ depends on VIDEO_BT848=n
help
The BT8xx frame grabber chip has 24 GPIO pins that can be abused
as a cheap PCI GPIO card.
@@ -935,14 +947,13 @@ config GPIO_BT8XX
config GPIO_INTEL_MID
bool "Intel Mid GPIO support"
- depends on PCI && X86
+ depends on X86
select GPIOLIB_IRQCHIP
help
Say Y here to support Intel Mid GPIO.
config GPIO_ML_IOH
tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
- depends on PCI
select GENERIC_IRQ_CHIP
help
ML7213 is companion chip for Intel Atom E6xx series.
@@ -952,7 +963,7 @@ config GPIO_ML_IOH
config GPIO_PCH
tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
- depends on PCI && (X86_32 || COMPILE_TEST)
+ depends on X86_32 || MIPS || COMPILE_TEST
select GENERIC_IRQ_CHIP
help
This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
@@ -968,7 +979,6 @@ config GPIO_PCH
config GPIO_RDC321X
tristate "RDC R-321x GPIO support"
- depends on PCI
select MFD_CORE
select MFD_RDC321X
help
@@ -977,7 +987,7 @@ config GPIO_RDC321X
config GPIO_SODAVILLE
bool "Intel Sodaville GPIO support"
- depends on X86 && PCI && OF
+ depends on X86 && OF
select GPIO_GENERIC
select GENERIC_IRQ_CHIP
help
@@ -1028,7 +1038,7 @@ menu "USB GPIO expanders"
config GPIO_VIPERBOARD
tristate "Viperboard GPIO a & b support"
- depends on MFD_VIPERBOARD && USB
+ depends on MFD_VIPERBOARD
help
Say yes here to access the GPIO signals of Nano River
Technologies Viperboard. There are two GPIO chips on the
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 986dbd838cea..548e9b5718ee 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_GPIO_ACPI) += gpiolib-acpi.o
obj-$(CONFIG_GPIO_GENERIC) += gpio-generic.o
obj-$(CONFIG_GPIO_104_IDIO_16) += gpio-104-idio-16.o
+obj-$(CONFIG_GPIO_104_IDI_48) += gpio-104-idi-48.o
obj-$(CONFIG_GPIO_74X164) += gpio-74x164.o
obj-$(CONFIG_GPIO_74XX_MMIO) += gpio-74xx-mmio.o
obj-$(CONFIG_GPIO_ADNP) += gpio-adnp.o
diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c
new file mode 100644
index 000000000000..b5c693409a58
--- /dev/null
+++ b/drivers/gpio/gpio-104-idi-48.c
@@ -0,0 +1,349 @@
+/*
+ * GPIO driver for the ACCES 104-IDI-48 family
+ * Copyright (C) 2015 William Breathitt Gray
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/gpio/driver.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/irqdesc.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+
+static unsigned idi_48_base;
+module_param(idi_48_base, uint, 0);
+MODULE_PARM_DESC(idi_48_base, "ACCES 104-IDI-48 base address");
+static unsigned idi_48_irq;
+module_param(idi_48_irq, uint, 0);
+MODULE_PARM_DESC(idi_48_irq, "ACCES 104-IDI-48 interrupt line number");
+
+/**
+ * struct idi_48_gpio - GPIO device private data structure
+ * @chip: instance of the gpio_chip
+ * @lock: synchronization lock to prevent I/O race conditions
+ * @irq_mask: input bits affected by interrupts
+ * @base: base port address of the GPIO device
+ * @extent: extent of port address region of the GPIO device
+ * @irq: Interrupt line number
+ * @cos_enb: Change-Of-State IRQ enable boundaries mask
+ */
+struct idi_48_gpio {
+ struct gpio_chip chip;
+ spinlock_t lock;
+ unsigned char irq_mask[6];
+ unsigned base;
+ unsigned extent;
+ unsigned irq;
+ unsigned char cos_enb;
+};
+
+static int idi_48_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+ return 1;
+}
+
+static int idi_48_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ return 0;
+}
+
+static struct idi_48_gpio *to_idi48gpio(struct gpio_chip *gc)
+{
+ return container_of(gc, struct idi_48_gpio, chip);
+}
+
+static int idi_48_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
+ unsigned i;
+ const unsigned register_offset[6] = { 0, 1, 2, 4, 5, 6 };
+ unsigned base_offset;
+ unsigned mask;
+
+ for (i = 0; i < 48; i += 8)
+ if (offset < i + 8) {
+ base_offset = register_offset[i / 8];
+ mask = BIT(offset - i);
+
+ return !!(inb(idi48gpio->base + base_offset) & mask);
+ }
+
+ /* The following line should never execute since offset < 48 */
+ return 0;
+}
+
+static void idi_48_irq_ack(struct irq_data *data)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
+ unsigned long flags;
+
+ spin_lock_irqsave(&idi48gpio->lock, flags);
+
+ inb(idi48gpio->base + 7);
+
+ spin_unlock_irqrestore(&idi48gpio->lock, flags);
+}
+
+static void idi_48_irq_mask(struct irq_data *data)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
+ const unsigned offset = irqd_to_hwirq(data);
+ unsigned i;
+ unsigned mask;
+ unsigned boundary;
+ unsigned long flags;
+
+ for (i = 0; i < 48; i += 8)
+ if (offset < i + 8) {
+ mask = BIT(offset - i);
+ boundary = i / 8;
+
+ idi48gpio->irq_mask[boundary] &= ~mask;
+
+ if (!idi48gpio->irq_mask[boundary]) {
+ idi48gpio->cos_enb &= ~BIT(boundary);
+
+ spin_lock_irqsave(&idi48gpio->lock, flags);
+
+ outb(idi48gpio->cos_enb, idi48gpio->base + 7);
+
+ spin_unlock_irqrestore(&idi48gpio->lock, flags);
+ }
+
+ return;
+ }
+}
+
+static void idi_48_irq_unmask(struct irq_data *data)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
+ const unsigned offset = irqd_to_hwirq(data);
+ unsigned i;
+ unsigned mask;
+ unsigned boundary;
+ unsigned prev_irq_mask;
+ unsigned long flags;
+
+ for (i = 0; i < 48; i += 8)
+ if (offset < i + 8) {
+ mask = BIT(offset - i);
+ boundary = i / 8;
+ prev_irq_mask = idi48gpio->irq_mask[boundary];
+
+ idi48gpio->irq_mask[boundary] |= mask;
+
+ if (!prev_irq_mask) {
+ idi48gpio->cos_enb |= BIT(boundary);
+
+ spin_lock_irqsave(&idi48gpio->lock, flags);
+
+ outb(idi48gpio->cos_enb, idi48gpio->base + 7);
+
+ spin_unlock_irqrestore(&idi48gpio->lock, flags);
+ }
+
+ return;
+ }
+}
+
+static int idi_48_irq_set_type(struct irq_data *data, unsigned flow_type)
+{
+ /* The only valid irq types are none and both-edges */
+ if (flow_type != IRQ_TYPE_NONE &&
+ (flow_type & IRQ_TYPE_EDGE_BOTH) != IRQ_TYPE_EDGE_BOTH)
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct irq_chip idi_48_irqchip = {
+ .name = "104-idi-48",
+ .irq_ack = idi_48_irq_ack,
+ .irq_mask = idi_48_irq_mask,
+ .irq_unmask = idi_48_irq_unmask,
+ .irq_set_type = idi_48_irq_set_type
+};
+
+static irqreturn_t idi_48_irq_handler(int irq, void *dev_id)
+{
+ struct idi_48_gpio *const idi48gpio = dev_id;
+ unsigned long cos_status;
+ unsigned long boundary;
+ unsigned long irq_mask;
+ unsigned long bit_num;
+ unsigned long gpio;
+ struct gpio_chip *const chip = &idi48gpio->chip;
+
+ spin_lock(&idi48gpio->lock);
+
+ cos_status = inb(idi48gpio->base + 7);
+
+ spin_unlock(&idi48gpio->lock);
+
+ /* IRQ Status (bit 6) is active low (0 = IRQ generated by device) */
+ if (cos_status & BIT(6))
+ return IRQ_NONE;
+
+ /* Bit 0-5 indicate which Change-Of-State boundary triggered the IRQ */
+ cos_status &= 0x3F;
+
+ for_each_set_bit(boundary, &cos_status, 6) {
+ irq_mask = idi48gpio->irq_mask[boundary];
+
+ for_each_set_bit(bit_num, &irq_mask, 8) {
+ gpio = bit_num + boundary * 8;
+
+ generic_handle_irq(irq_find_mapping(chip->irqdomain,
+ gpio));
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __init idi_48_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct idi_48_gpio *idi48gpio;
+ const unsigned base = idi_48_base;
+ const unsigned extent = 8;
+ const char *const name = dev_name(dev);
+ int err;
+ const unsigned irq = idi_48_irq;
+
+ idi48gpio = devm_kzalloc(dev, sizeof(*idi48gpio), GFP_KERNEL);
+ if (!idi48gpio)
+ return -ENOMEM;
+
+ if (!request_region(base, extent, name)) {
+ dev_err(dev, "Unable to lock %s port addresses (0x%X-0x%X)\n",
+ name, base, base + extent);
+ err = -EBUSY;
+ goto err_lock_io_port;
+ }
+
+ idi48gpio->chip.label = name;
+ idi48gpio->chip.parent = dev;
+ idi48gpio->chip.owner = THIS_MODULE;
+ idi48gpio->chip.base = -1;
+ idi48gpio->chip.ngpio = 48;
+ idi48gpio->chip.get_direction = idi_48_gpio_get_direction;
+ idi48gpio->chip.direction_input = idi_48_gpio_direction_input;
+ idi48gpio->chip.get = idi_48_gpio_get;
+ idi48gpio->base = base;
+ idi48gpio->extent = extent;
+ idi48gpio->irq = irq;
+
+ spin_lock_init(&idi48gpio->lock);
+
+ dev_set_drvdata(dev, idi48gpio);
+
+ err = gpiochip_add(&idi48gpio->chip);
+ if (err) {
+ dev_err(dev, "GPIO registering failed (%d)\n", err);
+ goto err_gpio_register;
+ }
+
+ /* Disable IRQ by default */
+ outb(0, base + 7);
+ inb(base + 7);
+
+ err = gpiochip_irqchip_add(&idi48gpio->chip, &idi_48_irqchip, 0,
+ handle_edge_irq, IRQ_TYPE_NONE);
+ if (err) {
+ dev_err(dev, "Could not add irqchip (%d)\n", err);
+ goto err_gpiochip_irqchip_add;
+ }
+
+ err = request_irq(irq, idi_48_irq_handler, 0, name, idi48gpio);
+ if (err) {
+ dev_err(dev, "IRQ handler registering failed (%d)\n", err);
+ goto err_request_irq;
+ }
+
+ return 0;
+
+err_request_irq:
+err_gpiochip_irqchip_add:
+ gpiochip_remove(&idi48gpio->chip);
+err_gpio_register:
+ release_region(base, extent);
+err_lock_io_port:
+ return err;
+}
+
+static int idi_48_remove(struct platform_device *pdev)
+{
+ struct idi_48_gpio *const idi48gpio = platform_get_drvdata(pdev);
+
+ free_irq(idi48gpio->irq, idi48gpio);
+ gpiochip_remove(&idi48gpio->chip);
+ release_region(idi48gpio->base, idi48gpio->extent);
+
+ return 0;
+}
+
+static struct platform_device *idi_48_device;
+
+static struct platform_driver idi_48_driver = {
+ .driver = {
+ .name = "104-idi-48"
+ },
+ .remove = idi_48_remove
+};
+
+static void __exit idi_48_exit(void)
+{
+ platform_device_unregister(idi_48_device);
+ platform_driver_unregister(&idi_48_driver);
+}
+
+static int __init idi_48_init(void)
+{
+ int err;
+
+ idi_48_device = platform_device_alloc(idi_48_driver.driver.name, -1);
+ if (!idi_48_device)
+ return -ENOMEM;
+
+ err = platform_device_add(idi_48_device);
+ if (err)
+ goto err_platform_device;
+
+ err = platform_driver_probe(&idi_48_driver, idi_48_probe);
+ if (err)
+ goto err_platform_driver;
+
+ return 0;
+
+err_platform_driver:
+ platform_device_del(idi_48_device);
+err_platform_device:
+ platform_device_put(idi_48_device);
+ return err;
+}
+
+module_init(idi_48_init);
+module_exit(idi_48_exit);
+
+MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>");
+MODULE_DESCRIPTION("ACCES 104-IDI-48 GPIO driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c
index 5400d7d4d8fd..91c8b5b17f64 100644
--- a/drivers/gpio/gpio-104-idio-16.c
+++ b/drivers/gpio/gpio-104-idio-16.c
@@ -11,11 +11,14 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
+#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/gpio/driver.h>
#include <linux/io.h>
#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/irqdesc.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -25,20 +28,27 @@
static unsigned idio_16_base;
module_param(idio_16_base, uint, 0);
MODULE_PARM_DESC(idio_16_base, "ACCES 104-IDIO-16 base address");
+static unsigned idio_16_irq;
+module_param(idio_16_irq, uint, 0);
+MODULE_PARM_DESC(idio_16_irq, "ACCES 104-IDIO-16 interrupt line number");
/**
* struct idio_16_gpio - GPIO device private data structure
* @chip: instance of the gpio_chip
- * @lock: synchronization lock to prevent gpio_set race conditions
+ * @lock: synchronization lock to prevent I/O race conditions
+ * @irq_mask: I/O bits affected by interrupts
* @base: base port address of the GPIO device
* @extent: extent of port address region of the GPIO device
+ * @irq: Interrupt line number
* @out_state: output bits state
*/
struct idio_16_gpio {
struct gpio_chip chip;
spinlock_t lock;
+ unsigned long irq_mask;
unsigned base;
unsigned extent;
+ unsigned irq;
unsigned out_state;
};
@@ -70,21 +80,21 @@ static struct idio_16_gpio *to_idio16gpio(struct gpio_chip *gc)
static int idio_16_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct idio_16_gpio *const idio16gpio = to_idio16gpio(chip);
- const unsigned BIT_MASK = 1U << (offset-16);
+ const unsigned mask = BIT(offset-16);
if (offset < 16)
return -EINVAL;
if (offset < 24)
- return !!(inb(idio16gpio->base + 1) & BIT_MASK);
+ return !!(inb(idio16gpio->base + 1) & mask);
- return !!(inb(idio16gpio->base + 5) & (BIT_MASK>>8));
+ return !!(inb(idio16gpio->base + 5) & (mask>>8));
}
static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct idio_16_gpio *const idio16gpio = to_idio16gpio(chip);
- const unsigned BIT_MASK = 1U << offset;
+ const unsigned mask = BIT(offset);
unsigned long flags;
if (offset > 15)
@@ -93,9 +103,9 @@ static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
spin_lock_irqsave(&idio16gpio->lock, flags);
if (value)
- idio16gpio->out_state |= BIT_MASK;
+ idio16gpio->out_state |= mask;
else
- idio16gpio->out_state &= ~BIT_MASK;
+ idio16gpio->out_state &= ~mask;
if (offset > 7)
outb(idio16gpio->out_state >> 8, idio16gpio->base + 4);
@@ -105,29 +115,106 @@ static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
spin_unlock_irqrestore(&idio16gpio->lock, flags);
}
+static void idio_16_irq_ack(struct irq_data *data)
+{
+}
+
+static void idio_16_irq_mask(struct irq_data *data)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct idio_16_gpio *const idio16gpio = to_idio16gpio(chip);
+ const unsigned long mask = BIT(irqd_to_hwirq(data));
+ unsigned long flags;
+
+ idio16gpio->irq_mask &= ~mask;
+
+ if (!idio16gpio->irq_mask) {
+ spin_lock_irqsave(&idio16gpio->lock, flags);
+
+ outb(0, idio16gpio->base + 2);
+
+ spin_unlock_irqrestore(&idio16gpio->lock, flags);
+ }
+}
+
+static void idio_16_irq_unmask(struct irq_data *data)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct idio_16_gpio *const idio16gpio = to_idio16gpio(chip);
+ const unsigned long mask = BIT(irqd_to_hwirq(data));
+ const unsigned long prev_irq_mask = idio16gpio->irq_mask;
+ unsigned long flags;
+
+ idio16gpio->irq_mask |= mask;
+
+ if (!prev_irq_mask) {
+ spin_lock_irqsave(&idio16gpio->lock, flags);
+
+ inb(idio16gpio->base + 2);
+
+ spin_unlock_irqrestore(&idio16gpio->lock, flags);
+ }
+}
+
+static int idio_16_irq_set_type(struct irq_data *data, unsigned flow_type)
+{
+ /* The only valid irq types are none and both-edges */
+ if (flow_type != IRQ_TYPE_NONE &&
+ (flow_type & IRQ_TYPE_EDGE_BOTH) != IRQ_TYPE_EDGE_BOTH)
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct irq_chip idio_16_irqchip = {
+ .name = "104-idio-16",
+ .irq_ack = idio_16_irq_ack,
+ .irq_mask = idio_16_irq_mask,
+ .irq_unmask = idio_16_irq_unmask,
+ .irq_set_type = idio_16_irq_set_type
+};
+
+static irqreturn_t idio_16_irq_handler(int irq, void *dev_id)
+{
+ struct idio_16_gpio *const idio16gpio = dev_id;
+ struct gpio_chip *const chip = &idio16gpio->chip;
+ int gpio;
+
+ for_each_set_bit(gpio, &idio16gpio->irq_mask, chip->ngpio)
+ generic_handle_irq(irq_find_mapping(chip->irqdomain, gpio));
+
+ spin_lock(&idio16gpio->lock);
+
+ outb(0, idio16gpio->base + 1);
+
+ spin_unlock(&idio16gpio->lock);
+
+ return IRQ_HANDLED;
+}
+
static int __init idio_16_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct idio_16_gpio *idio16gpio;
+ const unsigned base = idio_16_base;
+ const unsigned extent = 8;
+ const char *const name = dev_name(dev);
int err;
-
- const unsigned BASE = idio_16_base;
- const unsigned EXTENT = 8;
- const char *const NAME = dev_name(dev);
+ const unsigned irq = idio_16_irq;
idio16gpio = devm_kzalloc(dev, sizeof(*idio16gpio), GFP_KERNEL);
if (!idio16gpio)
return -ENOMEM;
- if (!request_region(BASE, EXTENT, NAME)) {
+ if (!request_region(base, extent, name)) {
dev_err(dev, "Unable to lock %s port addresses (0x%X-0x%X)\n",
- NAME, BASE, BASE + EXTENT);
+ name, base, base + extent);
err = -EBUSY;
goto err_lock_io_port;
}
- idio16gpio->chip.label = NAME;
- idio16gpio->chip.dev = dev;
+ idio16gpio->chip.label = name;
+ idio16gpio->chip.parent = dev;
idio16gpio->chip.owner = THIS_MODULE;
idio16gpio->chip.base = -1;
idio16gpio->chip.ngpio = 32;
@@ -136,8 +223,9 @@ static int __init idio_16_probe(struct platform_device *pdev)
idio16gpio->chip.direction_output = idio_16_gpio_direction_output;
idio16gpio->chip.get = idio_16_gpio_get;
idio16gpio->chip.set = idio_16_gpio_set;
- idio16gpio->base = BASE;
- idio16gpio->extent = EXTENT;
+ idio16gpio->base = base;
+ idio16gpio->extent = extent;
+ idio16gpio->irq = irq;
idio16gpio->out_state = 0xFFFF;
spin_lock_init(&idio16gpio->lock);
@@ -150,10 +238,30 @@ static int __init idio_16_probe(struct platform_device *pdev)
goto err_gpio_register;
}
+ /* Disable IRQ by default */
+ outb(0, base + 2);
+ outb(0, base + 1);
+
+ err = gpiochip_irqchip_add(&idio16gpio->chip, &idio_16_irqchip, 0,
+ handle_edge_irq, IRQ_TYPE_NONE);
+ if (err) {
+ dev_err(dev, "Could not add irqchip (%d)\n", err);
+ goto err_gpiochip_irqchip_add;
+ }
+
+ err = request_irq(irq, idio_16_irq_handler, 0, name, idio16gpio);
+ if (err) {
+ dev_err(dev, "IRQ handler registering failed (%d)\n", err);
+ goto err_request_irq;
+ }
+
return 0;
+err_request_irq:
+err_gpiochip_irqchip_add:
+ gpiochip_remove(&idio16gpio->chip);
err_gpio_register:
- release_region(BASE, EXTENT);
+ release_region(base, extent);
err_lock_io_port:
return err;
}
@@ -162,6 +270,7 @@ static int idio_16_remove(struct platform_device *pdev)
{
struct idio_16_gpio *const idio16gpio = platform_get_drvdata(pdev);
+ free_irq(idio16gpio->irq, idio16gpio);
gpiochip_remove(&idio16gpio->chip);
release_region(idio16gpio->base, idio16gpio->extent);
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 60172f835d15..54a4147fba52 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -20,10 +20,17 @@
#define GEN_74X164_NUMBER_GPIOS 8
struct gen_74x164_chip {
- u8 *buffer;
struct gpio_chip gpio_chip;
struct mutex lock;
u32 registers;
+ /*
+ * Since the registers are chained, every byte sent will make
+ * the previous byte shift to the next register in the
+ * chain. Thus, the first byte sent will end up in the last
+ * register at the end of the transfer. So, to have a logical
+ * numbering, store the bytes in reverse order.
+ */
+ u8 buffer[0];
};
static struct gen_74x164_chip *gpio_to_74x164_chip(struct gpio_chip *gc)
@@ -33,43 +40,19 @@ static struct gen_74x164_chip *gpio_to_74x164_chip(struct gpio_chip *gc)
static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
{
- struct spi_device *spi = to_spi_device(chip->gpio_chip.dev);
- struct spi_message message;
- struct spi_transfer *msg_buf;
- int i, ret = 0;
-
- msg_buf = kzalloc(chip->registers * sizeof(struct spi_transfer),
- GFP_KERNEL);
- if (!msg_buf)
- return -ENOMEM;
-
- spi_message_init(&message);
-
- /*
- * Since the registers are chained, every byte sent will make
- * the previous byte shift to the next register in the
- * chain. Thus, the first byte send will end up in the last
- * register at the end of the transfer. So, to have a logical
- * numbering, send the bytes in reverse order so that the last
- * byte of the buffer will end up in the last register.
- */
- for (i = chip->registers - 1; i >= 0; i--) {
- msg_buf[i].tx_buf = chip->buffer + i;
- msg_buf[i].len = sizeof(u8);
- spi_message_add_tail(msg_buf + i, &message);
- }
-
- ret = spi_sync(spi, &message);
+ struct spi_transfer xfer = {
+ .tx_buf = chip->buffer,
+ .len = chip->registers,
+ };
- kfree(msg_buf);
-
- return ret;
+ return spi_sync_transfer(to_spi_device(chip->gpio_chip.parent),
+ &xfer, 1);
}
static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
{
struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
- u8 bank = offset / 8;
+ u8 bank = chip->registers - 1 - offset / 8;
u8 pin = offset % 8;
int ret;
@@ -84,7 +67,7 @@ static void gen_74x164_set_value(struct gpio_chip *gc,
unsigned offset, int val)
{
struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
- u8 bank = offset / 8;
+ u8 bank = chip->registers - 1 - offset / 8;
u8 pin = offset % 8;
mutex_lock(&chip->lock);
@@ -107,6 +90,7 @@ static int gen_74x164_direction_output(struct gpio_chip *gc,
static int gen_74x164_probe(struct spi_device *spi)
{
struct gen_74x164_chip *chip;
+ u32 nregs;
int ret;
/*
@@ -118,7 +102,14 @@ static int gen_74x164_probe(struct spi_device *spi)
if (ret < 0)
return ret;
- chip = devm_kzalloc(&spi->dev, sizeof(*chip), GFP_KERNEL);
+ if (of_property_read_u32(spi->dev.of_node, "registers-number",
+ &nregs)) {
+ dev_err(&spi->dev,
+ "Missing registers-number property in the DT.\n");
+ return -EINVAL;
+ }
+
+ chip = devm_kzalloc(&spi->dev, sizeof(*chip) + nregs, GFP_KERNEL);
if (!chip)
return -ENOMEM;
@@ -130,20 +121,11 @@ static int gen_74x164_probe(struct spi_device *spi)
chip->gpio_chip.set = gen_74x164_set_value;
chip->gpio_chip.base = -1;
- if (of_property_read_u32(spi->dev.of_node, "registers-number",
- &chip->registers)) {
- dev_err(&spi->dev,
- "Missing registers-number property in the DT.\n");
- return -EINVAL;
- }
-
+ chip->registers = nregs;
chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers;
- chip->buffer = devm_kzalloc(&spi->dev, chip->registers, GFP_KERNEL);
- if (!chip->buffer)
- return -ENOMEM;
chip->gpio_chip.can_sleep = true;
- chip->gpio_chip.dev = &spi->dev;
+ chip->gpio_chip.parent = &spi->dev;
chip->gpio_chip.owner = THIS_MODULE;
mutex_init(&chip->lock);
diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index d3d0a90fe542..b8a1ac133390 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -47,7 +47,7 @@ static int adnp_read(struct adnp *adnp, unsigned offset, uint8_t *value)
err = i2c_smbus_read_byte_data(adnp->client, offset);
if (err < 0) {
- dev_err(adnp->gpio.dev, "%s failed: %d\n",
+ dev_err(adnp->gpio.parent, "%s failed: %d\n",
"i2c_smbus_read_byte_data()", err);
return err;
}
@@ -62,7 +62,7 @@ static int adnp_write(struct adnp *adnp, unsigned offset, uint8_t value)
err = i2c_smbus_write_byte_data(adnp->client, offset, value);
if (err < 0) {
- dev_err(adnp->gpio.dev, "%s failed: %d\n",
+ dev_err(adnp->gpio.parent, "%s failed: %d\n",
"i2c_smbus_write_byte_data()", err);
return err;
}
@@ -266,8 +266,8 @@ static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios)
chip->base = -1;
chip->ngpio = num_gpios;
chip->label = adnp->client->name;
- chip->dev = &adnp->client->dev;
- chip->of_node = chip->dev->of_node;
+ chip->parent = &adnp->client->dev;
+ chip->of_node = chip->parent->of_node;
chip->owner = THIS_MODULE;
err = gpiochip_add(chip);
@@ -435,7 +435,8 @@ static int adnp_irq_setup(struct adnp *adnp)
* is chosen to match the register layout of the hardware in that
* each segment contains the corresponding bits for all interrupts.
*/
- adnp->irq_enable = devm_kzalloc(chip->dev, num_regs * 6, GFP_KERNEL);
+ adnp->irq_enable = devm_kzalloc(chip->parent, num_regs * 6,
+ GFP_KERNEL);
if (!adnp->irq_enable)
return -ENOMEM;
@@ -462,12 +463,12 @@ static int adnp_irq_setup(struct adnp *adnp)
adnp->irq_enable[i] = 0x00;
}
- err = devm_request_threaded_irq(chip->dev, adnp->client->irq,
+ err = devm_request_threaded_irq(chip->parent, adnp->client->irq,
NULL, adnp_irq,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
- dev_name(chip->dev), adnp);
+ dev_name(chip->parent), adnp);
if (err != 0) {
- dev_err(chip->dev, "can't request IRQ#%d: %d\n",
+ dev_err(chip->parent, "can't request IRQ#%d: %d\n",
adnp->client->irq, err);
return err;
}
@@ -478,7 +479,7 @@ static int adnp_irq_setup(struct adnp *adnp)
handle_simple_irq,
IRQ_TYPE_NONE);
if (err) {
- dev_err(chip->dev,
+ dev_err(chip->parent,
"could not connect irqchip to gpiochip\n");
return err;
}
@@ -547,7 +548,6 @@ MODULE_DEVICE_TABLE(of, adnp_of_match);
static struct i2c_driver adnp_i2c_driver = {
.driver = {
.name = "gpio-adnp",
- .owner = THIS_MODULE,
.of_match_table = adnp_of_match,
},
.probe = adnp_i2c_probe,
diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c
index 3e6661bab54a..84a20af01a9a 100644
--- a/drivers/gpio/gpio-altera.c
+++ b/drivers/gpio/gpio-altera.c
@@ -290,7 +290,7 @@ static int altera_gpio_probe(struct platform_device *pdev)
altera_gc->mmchip.gc.get = altera_gpio_get;
altera_gc->mmchip.gc.set = altera_gpio_set;
altera_gc->mmchip.gc.owner = THIS_MODULE;
- altera_gc->mmchip.gc.dev = &pdev->dev;
+ altera_gc->mmchip.gc.parent = &pdev->dev;
ret = of_mm_gpiochip_add(node, &altera_gc->mmchip);
if (ret) {
diff --git a/drivers/gpio/gpio-amd8111.c b/drivers/gpio/gpio-amd8111.c
index d00d81928fe8..5c378e9f53a0 100644
--- a/drivers/gpio/gpio-amd8111.c
+++ b/drivers/gpio/gpio-amd8111.c
@@ -220,7 +220,7 @@ found:
goto out;
}
gp.pdev = pdev;
- gp.chip.dev = &pdev->dev;
+ gp.chip.parent = &pdev->dev;
spin_lock_init(&gp.lock);
diff --git a/drivers/gpio/gpio-amdpt.c b/drivers/gpio/gpio-amdpt.c
index cbbb966d4fc0..f842ccc45e64 100644
--- a/drivers/gpio/gpio-amdpt.c
+++ b/drivers/gpio/gpio-amdpt.c
@@ -39,14 +39,14 @@ static int pt_gpio_request(struct gpio_chip *gc, unsigned offset)
unsigned long flags;
u32 using_pins;
- dev_dbg(gc->dev, "pt_gpio_request offset=%x\n", offset);
+ dev_dbg(gc->parent, "pt_gpio_request offset=%x\n", offset);
spin_lock_irqsave(&pt_gpio->lock, flags);
using_pins = readl(pt_gpio->reg_base + PT_SYNC_REG);
if (using_pins & BIT(offset)) {
- dev_warn(gc->dev, "PT GPIO pin %x reconfigured\n",
- offset);
+ dev_warn(gc->parent, "PT GPIO pin %x reconfigured\n",
+ offset);
spin_unlock_irqrestore(&pt_gpio->lock, flags);
return -EINVAL;
}
@@ -72,7 +72,7 @@ static void pt_gpio_free(struct gpio_chip *gc, unsigned offset)
spin_unlock_irqrestore(&pt_gpio->lock, flags);
- dev_dbg(gc->dev, "pt_gpio_free offset=%x\n", offset);
+ dev_dbg(gc->parent, "pt_gpio_free offset=%x\n", offset);
}
static void pt_gpio_set_value(struct gpio_chip *gc, unsigned offset, int value)
@@ -81,7 +81,7 @@ static void pt_gpio_set_value(struct gpio_chip *gc, unsigned offset, int value)
unsigned long flags;
u32 data;
- dev_dbg(gc->dev, "pt_gpio_set_value offset=%x, value=%x\n",
+ dev_dbg(gc->parent, "pt_gpio_set_value offset=%x, value=%x\n",
offset, value);
spin_lock_irqsave(&pt_gpio->lock, flags);
@@ -116,7 +116,7 @@ static int pt_gpio_get_value(struct gpio_chip *gc, unsigned offset)
data >>= offset;
data &= 1;
- dev_dbg(gc->dev, "pt_gpio_get_value offset=%x, value=%x\n",
+ dev_dbg(gc->parent, "pt_gpio_get_value offset=%x, value=%x\n",
offset, data);
return data;
@@ -128,7 +128,7 @@ static int pt_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
unsigned long flags;
u32 data;
- dev_dbg(gc->dev, "pt_gpio_dirction_input offset=%x\n", offset);
+ dev_dbg(gc->parent, "pt_gpio_dirction_input offset=%x\n", offset);
spin_lock_irqsave(&pt_gpio->lock, flags);
@@ -148,7 +148,7 @@ static int pt_gpio_direction_output(struct gpio_chip *gc,
unsigned long flags;
u32 data;
- dev_dbg(gc->dev, "pt_gpio_direction_output offset=%x, value=%x\n",
+ dev_dbg(gc->parent, "pt_gpio_direction_output offset=%x, value=%x\n",
offset, value);
spin_lock_irqsave(&pt_gpio->lock, flags);
@@ -202,7 +202,7 @@ static int pt_gpio_probe(struct platform_device *pdev)
pt_gpio->gc.label = pdev->name;
pt_gpio->gc.owner = THIS_MODULE;
- pt_gpio->gc.dev = dev;
+ pt_gpio->gc.parent = dev;
pt_gpio->gc.request = pt_gpio_request;
pt_gpio->gc.free = pt_gpio_free;
pt_gpio->gc.direction_input = pt_gpio_direction_input;
diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index ca002739616a..412d131b513d 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -108,7 +108,7 @@ static int arizona_gpio_probe(struct platform_device *pdev)
arizona_gpio->arizona = arizona;
arizona_gpio->gpio_chip = template_chip;
- arizona_gpio->gpio_chip.dev = &pdev->dev;
+ arizona_gpio->gpio_chip.parent = &pdev->dev;
#ifdef CONFIG_OF_GPIO
arizona_gpio->gpio_chip.of_node = arizona->dev->of_node;
#endif
diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c
index 5eaea8b812cf..6e678121ab12 100644
--- a/drivers/gpio/gpio-ath79.c
+++ b/drivers/gpio/gpio-ath79.c
@@ -138,7 +138,7 @@ static const struct of_device_id ath79_gpio_of_match[] = {
static int ath79_gpio_probe(struct platform_device *pdev)
{
- struct ath79_gpio_platform_data *pdata = pdev->dev.platform_data;
+ struct ath79_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct device_node *np = pdev->dev.of_node;
struct ath79_gpio_ctrl *ctrl;
struct resource *res;
@@ -177,7 +177,7 @@ static int ath79_gpio_probe(struct platform_device *pdev)
spin_lock_init(&ctrl->lock);
memcpy(&ctrl->chip, &ath79_gpio_chip, sizeof(ctrl->chip));
- ctrl->chip.dev = &pdev->dev;
+ ctrl->chip.parent = &pdev->dev;
ctrl->chip.ngpio = ath79_gpio_count;
if (oe_inverted) {
ctrl->chip.direction_input = ar934x_gpio_direction_input;
diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 33a1f9779b86..21c3280d66e1 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -273,7 +273,7 @@ static int bcm_kona_gpio_set_debounce(struct gpio_chip *chip, unsigned gpio,
reg_base = kona_gpio->reg_base;
/* debounce must be 1-128ms (or 0) */
if ((debounce > 0 && debounce < 1000) || debounce > 128000) {
- dev_err(chip->dev, "Debounce value %u not in range\n",
+ dev_err(chip->parent, "Debounce value %u not in range\n",
debounce);
return -EINVAL;
}
@@ -416,7 +416,7 @@ static int bcm_kona_gpio_irq_set_type(struct irq_data *d, unsigned int type)
case IRQ_TYPE_LEVEL_LOW:
/* BCM GPIO doesn't support level triggering */
default:
- dev_err(kona_gpio->gpio_chip.dev,
+ dev_err(kona_gpio->gpio_chip.parent,
"Invalid BCM GPIO irq type 0x%x\n", type);
return -EINVAL;
}
@@ -477,7 +477,7 @@ static int bcm_kona_gpio_irq_reqres(struct irq_data *d)
struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
if (gpiochip_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq)) {
- dev_err(kona_gpio->gpio_chip.dev,
+ dev_err(kona_gpio->gpio_chip.parent,
"unable to lock HW IRQ %lu for IRQ\n",
d->hwirq);
return -EINVAL;
diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c
index fddd204dc9b6..141093a8cd3f 100644
--- a/drivers/gpio/gpio-crystalcove.c
+++ b/drivers/gpio/gpio-crystalcove.c
@@ -341,7 +341,7 @@ static int crystalcove_gpio_probe(struct platform_device *pdev)
cg->chip.base = -1;
cg->chip.ngpio = CRYSTALCOVE_VGPIO_NUM;
cg->chip.can_sleep = true;
- cg->chip.dev = dev;
+ cg->chip.parent = dev;
cg->chip.dbg_show = crystalcove_gpio_dbg_show;
cg->regmap = pmic->regmap;
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 5e715388803d..65ebaef935e1 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -149,7 +149,7 @@ davinci_gpio_get_pdata(struct platform_device *pdev)
u32 val;
if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
- return pdev->dev.platform_data;
+ return dev_get_platdata(&pdev->dev);
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@@ -179,8 +179,8 @@ static int davinci_gpio_of_xlate(struct gpio_chip *gc,
const struct of_phandle_args *gpiospec,
u32 *flags)
{
- struct davinci_gpio_controller *chips = dev_get_drvdata(gc->dev);
- struct davinci_gpio_platform_data *pdata = dev_get_platdata(gc->dev);
+ struct davinci_gpio_controller *chips = dev_get_drvdata(gc->parent);
+ struct davinci_gpio_platform_data *pdata = dev_get_platdata(gc->parent);
if (gpiospec->args[0] > pdata->ngpio)
return -EINVAL;
@@ -254,7 +254,7 @@ static int davinci_gpio_probe(struct platform_device *pdev)
#ifdef CONFIG_OF_GPIO
chips[i].chip.of_gpio_n_cells = 2;
chips[i].chip.of_xlate = davinci_gpio_of_xlate;
- chips[i].chip.dev = dev;
+ chips[i].chip.parent = dev;
chips[i].chip.of_node = dev->of_node;
#endif
spin_lock_init(&chips[i].lock);
diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c
index 6685712c15cf..e541af03dd45 100644
--- a/drivers/gpio/gpio-dln2.c
+++ b/drivers/gpio/gpio-dln2.c
@@ -377,7 +377,7 @@ static void dln2_irq_bus_unlock(struct irq_data *irqd)
ret = dln2_gpio_set_event_cfg(dln2, pin, type, 0);
if (ret)
- dev_err(dln2->gpio.dev, "failed to set event\n");
+ dev_err(dln2->gpio.parent, "failed to set event\n");
}
mutex_unlock(&dln2->irq_lock);
@@ -406,19 +406,19 @@ static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
struct dln2_gpio *dln2 = platform_get_drvdata(pdev);
if (len < sizeof(*event)) {
- dev_err(dln2->gpio.dev, "short event message\n");
+ dev_err(dln2->gpio.parent, "short event message\n");
return;
}
pin = le16_to_cpu(event->pin);
if (pin >= dln2->gpio.ngpio) {
- dev_err(dln2->gpio.dev, "out of bounds pin %d\n", pin);
+ dev_err(dln2->gpio.parent, "out of bounds pin %d\n", pin);
return;
}
irq = irq_find_mapping(dln2->gpio.irqdomain, pin);
if (!irq) {
- dev_err(dln2->gpio.dev, "pin %d not mapped to IRQ\n", pin);
+ dev_err(dln2->gpio.parent, "pin %d not mapped to IRQ\n", pin);
return;
}
@@ -462,7 +462,7 @@ static int dln2_gpio_probe(struct platform_device *pdev)
dln2->pdev = pdev;
dln2->gpio.label = "dln2";
- dln2->gpio.dev = dev;
+ dln2->gpio.parent = dev;
dln2->gpio.owner = THIS_MODULE;
dln2->gpio.base = -1;
dln2->gpio.ngpio = pins;
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index 6bca1e125e12..c3ca2b1c1dfe 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -103,7 +103,7 @@ static int em_gio_irq_reqres(struct irq_data *d)
struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
if (gpiochip_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d))) {
- dev_err(p->gpio_chip.dev,
+ dev_err(p->gpio_chip.parent,
"unable to lock HW IRQ %lu for IRQ\n",
irqd_to_hwirq(d));
return -EINVAL;
@@ -332,7 +332,7 @@ static int em_gio_probe(struct platform_device *pdev)
gpio_chip->request = em_gio_request;
gpio_chip->free = em_gio_free;
gpio_chip->label = name;
- gpio_chip->dev = &pdev->dev;
+ gpio_chip->parent = &pdev->dev;
gpio_chip->owner = THIS_MODULE;
gpio_chip->base = -1;
gpio_chip->ngpio = ngpios;
diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c
index 5e3c4fa67d82..2be7337cf4ae 100644
--- a/drivers/gpio/gpio-f7188x.c
+++ b/drivers/gpio/gpio-f7188x.c
@@ -298,7 +298,7 @@ static int f7188x_gpio_probe(struct platform_device *pdev)
{
int err;
int i;
- struct f7188x_sio *sio = pdev->dev.platform_data;
+ struct f7188x_sio *sio = dev_get_platdata(&pdev->dev);
struct f7188x_gpio_data *data;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
@@ -333,7 +333,7 @@ static int f7188x_gpio_probe(struct platform_device *pdev)
for (i = 0; i < data->nr_bank; i++) {
struct f7188x_gpio_bank *bank = &data->bank[i];
- bank->chip.dev = &pdev->dev;
+ bank->chip.parent = &pdev->dev;
bank->data = data;
err = gpiochip_add(&bank->chip);
diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
index 88ae70ddb127..ea581dc23d44 100644
--- a/drivers/gpio/gpio-generic.c
+++ b/drivers/gpio/gpio-generic.c
@@ -545,7 +545,7 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
return -EINVAL;
spin_lock_init(&bgc->lock);
- bgc->gc.dev = dev;
+ bgc->gc.parent = dev;
bgc->gc.label = dev_name(dev);
bgc->gc.base = -1;
bgc->gc.ngpio = bgc->bits;
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index 4ba7ed502131..8623d12e23c1 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -282,7 +282,7 @@ static void ichx_gpiolib_setup(struct gpio_chip *chip)
{
chip->owner = THIS_MODULE;
chip->label = DRV_NAME;
- chip->dev = &ichx_priv.dev->dev;
+ chip->parent = &ichx_priv.dev->dev;
/* Allow chip-specific overrides of request()/get() */
chip->request = ichx_priv.desc->request ?
diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
index 70097472b02c..1c46a7ef2680 100644
--- a/drivers/gpio/gpio-intel-mid.c
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -392,7 +392,7 @@ static int intel_gpio_probe(struct pci_dev *pdev,
priv->reg_base = pcim_iomap_table(pdev)[0];
priv->chip.label = dev_name(&pdev->dev);
- priv->chip.dev = &pdev->dev;
+ priv->chip.parent = &pdev->dev;
priv->chip.request = intel_gpio_request;
priv->chip.direction_input = intel_gpio_direction_input;
priv->chip.direction_output = intel_gpio_direction_output;
diff --git a/drivers/gpio/gpio-janz-ttl.c b/drivers/gpio/gpio-janz-ttl.c
index 3a1664335f5e..e5f85cab0100 100644
--- a/drivers/gpio/gpio-janz-ttl.c
+++ b/drivers/gpio/gpio-janz-ttl.c
@@ -59,7 +59,7 @@ struct ttl_module {
static int ttl_get_value(struct gpio_chip *gpio, unsigned offset)
{
- struct ttl_module *mod = dev_get_drvdata(gpio->dev);
+ struct ttl_module *mod = dev_get_drvdata(gpio->parent);
u8 *shadow;
int ret;
@@ -81,7 +81,7 @@ static int ttl_get_value(struct gpio_chip *gpio, unsigned offset)
static void ttl_set_value(struct gpio_chip *gpio, unsigned offset, int value)
{
- struct ttl_module *mod = dev_get_drvdata(gpio->dev);
+ struct ttl_module *mod = dev_get_drvdata(gpio->parent);
void __iomem *port;
u8 *shadow;
@@ -172,7 +172,7 @@ static int ttl_probe(struct platform_device *pdev)
/* Initialize the GPIO data structures */
gpio = &mod->gpio;
- gpio->dev = &pdev->dev;
+ gpio->parent = &pdev->dev;
gpio->label = pdev->name;
gpio->get = ttl_get_value;
gpio->set = ttl_set_value;
diff --git a/drivers/gpio/gpio-kempld.c b/drivers/gpio/gpio-kempld.c
index 83f281dda1e0..35dd1e0af364 100644
--- a/drivers/gpio/gpio-kempld.c
+++ b/drivers/gpio/gpio-kempld.c
@@ -166,7 +166,7 @@ static int kempld_gpio_probe(struct platform_device *pdev)
chip = &gpio->chip;
chip->label = "gpio-kempld";
chip->owner = THIS_MODULE;
- chip->dev = dev;
+ chip->parent = dev;
chip->can_sleep = true;
if (pdata && pdata->gpio_base)
chip->base = pdata->gpio_base;
diff --git a/drivers/gpio/gpio-lp3943.c b/drivers/gpio/gpio-lp3943.c
index cfc5b12b43ad..f979c3be217f 100644
--- a/drivers/gpio/gpio-lp3943.c
+++ b/drivers/gpio/gpio-lp3943.c
@@ -205,7 +205,7 @@ static int lp3943_gpio_probe(struct platform_device *pdev)
lp3943_gpio->lp3943 = lp3943;
lp3943_gpio->chip = lp3943_gpio_chip;
- lp3943_gpio->chip.dev = &pdev->dev;
+ lp3943_gpio->chip.parent = &pdev->dev;
platform_set_drvdata(pdev, lp3943_gpio);
diff --git a/drivers/gpio/gpio-lpc18xx.c b/drivers/gpio/gpio-lpc18xx.c
index e39dcb0af8ae..b01fbc9db7cd 100644
--- a/drivers/gpio/gpio-lpc18xx.c
+++ b/drivers/gpio/gpio-lpc18xx.c
@@ -127,7 +127,7 @@ static int lpc18xx_gpio_probe(struct platform_device *pdev)
spin_lock_init(&gc->lock);
- gc->gpio.dev = &pdev->dev;
+ gc->gpio.parent = &pdev->dev;
ret = gpiochip_add(&gc->gpio);
if (ret) {
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index 127c37b380ae..6a48ffd6e0db 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -368,7 +368,7 @@ static int lp_gpio_probe(struct platform_device *pdev)
gc->base = -1;
gc->ngpio = LP_NUM_GPIO;
gc->can_sleep = false;
- gc->dev = dev;
+ gc->parent = dev;
ret = gpiochip_add(gc);
if (ret) {
diff --git a/drivers/gpio/gpio-max7300.c b/drivers/gpio/gpio-max7300.c
index 0cc2c279ab5c..1ae9ba851c9a 100644
--- a/drivers/gpio/gpio-max7300.c
+++ b/drivers/gpio/gpio-max7300.c
@@ -65,7 +65,6 @@ MODULE_DEVICE_TABLE(i2c, max7300_id);
static struct i2c_driver max7300_driver = {
.driver = {
.name = "max7300",
- .owner = THIS_MODULE,
},
.probe = max7300_probe,
.remove = max7300_remove,
diff --git a/drivers/gpio/gpio-max730x.c b/drivers/gpio/gpio-max730x.c
index 0f57d2d248ec..5d6a723cb414 100644
--- a/drivers/gpio/gpio-max730x.c
+++ b/drivers/gpio/gpio-max730x.c
@@ -189,7 +189,7 @@ int __max730x_probe(struct max7301 *ts)
ts->chip.ngpio = PIN_NUMBER;
ts->chip.can_sleep = true;
- ts->chip.dev = dev;
+ ts->chip.parent = dev;
ts->chip.owner = THIS_MODULE;
/*
diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c
index 8c5252c6c327..a1094984b666 100644
--- a/drivers/gpio/gpio-max732x.c
+++ b/drivers/gpio/gpio-max732x.c
@@ -603,7 +603,7 @@ static int max732x_setup_gpio(struct max732x_chip *chip,
gc->base = gpio_start;
gc->ngpio = port;
gc->label = chip->client->name;
- gc->dev = &chip->client->dev;
+ gc->parent = &chip->client->dev;
gc->owner = THIS_MODULE;
return port;
@@ -649,7 +649,7 @@ static int max732x_probe(struct i2c_client *client,
chip->client = client;
nr_port = max732x_setup_gpio(chip, id, pdata->gpio_base);
- chip->gpio_chip.dev = &client->dev;
+ chip->gpio_chip.parent = &client->dev;
addr_a = (client->addr & 0x0f) | 0x60;
addr_b = (client->addr & 0x0f) | 0x50;
@@ -749,7 +749,6 @@ static int max732x_remove(struct i2c_client *client)
static struct i2c_driver max732x_driver = {
.driver = {
.name = "max732x",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(max732x_of_table),
},
.probe = max732x_probe,
diff --git a/drivers/gpio/gpio-mb86s7x.c b/drivers/gpio/gpio-mb86s7x.c
index ee93c0ab0a59..93d61a5be0d4 100644
--- a/drivers/gpio/gpio-mb86s7x.c
+++ b/drivers/gpio/gpio-mb86s7x.c
@@ -187,7 +187,7 @@ static int mb86s70_gpio_probe(struct platform_device *pdev)
gchip->gc.label = dev_name(&pdev->dev);
gchip->gc.ngpio = 32;
gchip->gc.owner = THIS_MODULE;
- gchip->gc.dev = &pdev->dev;
+ gchip->gc.parent = &pdev->dev;
gchip->gc.base = -1;
platform_set_drvdata(pdev, gchip);
diff --git a/drivers/gpio/gpio-mc33880.c b/drivers/gpio/gpio-mc33880.c
index 2853731db5bc..b46b9e522e8c 100644
--- a/drivers/gpio/gpio-mc33880.c
+++ b/drivers/gpio/gpio-mc33880.c
@@ -116,7 +116,7 @@ static int mc33880_probe(struct spi_device *spi)
mc->chip.base = pdata->base;
mc->chip.ngpio = PIN_NUMBER;
mc->chip.can_sleep = true;
- mc->chip.dev = &spi->dev;
+ mc->chip.parent = &spi->dev;
mc->chip.owner = THIS_MODULE;
mc->port_config = 0x00;
diff --git a/drivers/gpio/gpio-mc9s08dz60.c b/drivers/gpio/gpio-mc9s08dz60.c
index d62b4f8182bf..45f176018378 100644
--- a/drivers/gpio/gpio-mc9s08dz60.c
+++ b/drivers/gpio/gpio-mc9s08dz60.c
@@ -99,7 +99,7 @@ static int mc9s08dz60_probe(struct i2c_client *client,
mc9s->chip.label = client->name;
mc9s->chip.base = -1;
- mc9s->chip.dev = &client->dev;
+ mc9s->chip.parent = &client->dev;
mc9s->chip.owner = THIS_MODULE;
mc9s->chip.ngpio = GPIO_NUM;
mc9s->chip.can_sleep = true;
@@ -131,7 +131,6 @@ MODULE_DEVICE_TABLE(i2c, mc9s08dz60_id);
static struct i2c_driver mc9s08dz60_i2c_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "mc9s08dz60",
},
.probe = mc9s08dz60_probe,
diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 4a41694919da..13cace0ca6f7 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -446,7 +446,7 @@ static int mcp23s08_irq_reqres(struct irq_data *data)
struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
if (gpiochip_lock_as_irq(&mcp->chip, data->hwirq)) {
- dev_err(mcp->chip.dev,
+ dev_err(mcp->chip.parent,
"unable to lock HW IRQ %lu for IRQ usage\n",
data->hwirq);
return -EINVAL;
@@ -481,7 +481,8 @@ static int mcp23s08_irq_setup(struct mcp23s08 *mcp)
mutex_init(&mcp->irq_lock);
- mcp->irq_domain = irq_domain_add_linear(chip->dev->of_node, chip->ngpio,
+ mcp->irq_domain = irq_domain_add_linear(chip->parent->of_node,
+ chip->ngpio,
&irq_domain_simple_ops, mcp);
if (!mcp->irq_domain)
return -ENODEV;
@@ -491,10 +492,11 @@ static int mcp23s08_irq_setup(struct mcp23s08 *mcp)
else
irqflags |= IRQF_TRIGGER_LOW;
- err = devm_request_threaded_irq(chip->dev, mcp->irq, NULL, mcp23s08_irq,
- irqflags, dev_name(chip->dev), mcp);
+ err = devm_request_threaded_irq(chip->parent, mcp->irq, NULL,
+ mcp23s08_irq,
+ irqflags, dev_name(chip->parent), mcp);
if (err != 0) {
- dev_err(chip->dev, "unable to request IRQ#%d: %d\n",
+ dev_err(chip->parent, "unable to request IRQ#%d: %d\n",
mcp->irq, err);
return err;
}
@@ -638,7 +640,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
mcp->chip.base = pdata->base;
mcp->chip.can_sleep = true;
- mcp->chip.dev = dev;
+ mcp->chip.parent = dev;
mcp->chip.owner = THIS_MODULE;
/* verify MCP_IOCON.SEQOP = 0, so sequential reads work,
@@ -652,7 +654,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
mcp->irq_controller = pdata->irq_controller;
if (mcp->irq && mcp->irq_controller) {
mcp->irq_active_high =
- of_property_read_bool(mcp->chip.dev->of_node,
+ of_property_read_bool(mcp->chip.parent->of_node,
"microchip,irq-active-high");
if (type == MCP_TYPE_017)
diff --git a/drivers/gpio/gpio-moxart.c b/drivers/gpio/gpio-moxart.c
index d3355a6dc9b1..8942f4909a31 100644
--- a/drivers/gpio/gpio-moxart.c
+++ b/drivers/gpio/gpio-moxart.c
@@ -61,7 +61,7 @@ static int moxart_gpio_probe(struct platform_device *pdev)
bgc->data = bgc->read_reg(bgc->reg_set);
bgc->gc.base = 0;
bgc->gc.ngpio = 32;
- bgc->gc.dev = dev;
+ bgc->gc.parent = dev;
bgc->gc.owner = THIS_MODULE;
ret = gpiochip_add(&bgc->gc);
diff --git a/drivers/gpio/gpio-mpc5200.c b/drivers/gpio/gpio-mpc5200.c
index 4c542153e923..044bbbb747f2 100644
--- a/drivers/gpio/gpio-mpc5200.c
+++ b/drivers/gpio/gpio-mpc5200.c
@@ -360,15 +360,14 @@ static struct platform_driver mpc52xx_simple_gpiochip_driver = {
.remove = mpc52xx_gpiochip_remove,
};
+static struct platform_driver * const drivers[] = {
+ &mpc52xx_wkup_gpiochip_driver,
+ &mpc52xx_simple_gpiochip_driver,
+};
+
static int __init mpc52xx_gpio_init(void)
{
- if (platform_driver_register(&mpc52xx_wkup_gpiochip_driver))
- printk(KERN_ERR "Unable to register wakeup GPIO driver\n");
-
- if (platform_driver_register(&mpc52xx_simple_gpiochip_driver))
- printk(KERN_ERR "Unable to register simple GPIO driver\n");
-
- return 0;
+ return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
/* Make sure we get initialised before anyone else tries to use us */
@@ -376,9 +375,7 @@ subsys_initcall(mpc52xx_gpio_init);
static void __exit mpc52xx_gpio_exit(void)
{
- platform_driver_unregister(&mpc52xx_wkup_gpiochip_driver);
-
- platform_driver_unregister(&mpc52xx_simple_gpiochip_driver);
+ platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_exit(mpc52xx_gpio_exit);
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index 22523aae8abe..fe9ef2bc981a 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -293,7 +293,7 @@ static int platform_msic_gpio_probe(struct platform_device *pdev)
mg->chip.base = pdata->gpio_base;
mg->chip.ngpio = MSIC_NUM_GPIO;
mg->chip.can_sleep = true;
- mg->chip.dev = dev;
+ mg->chip.parent = dev;
mutex_init(&mg->buslock);
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index d428b97876c5..6acedf4e9b1c 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -698,7 +698,7 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
mvchip->soc_variant = soc_variant;
mvchip->chip.label = dev_name(&pdev->dev);
- mvchip->chip.dev = &pdev->dev;
+ mvchip->chip.parent = &pdev->dev;
mvchip->chip.request = gpiochip_generic_request;
mvchip->chip.free = gpiochip_generic_free;
mvchip->chip.direction_input = mvebu_gpio_direction_input;
diff --git a/drivers/gpio/gpio-octeon.c b/drivers/gpio/gpio-octeon.c
index 62ae251d4490..afbb2417dfbc 100644
--- a/drivers/gpio/gpio-octeon.c
+++ b/drivers/gpio/gpio-octeon.c
@@ -108,7 +108,7 @@ static int octeon_gpio_probe(struct platform_device *pdev)
pdev->dev.platform_data = chip;
chip->label = "octeon-gpio";
- chip->dev = &pdev->dev;
+ chip->parent = &pdev->dev;
chip->owner = THIS_MODULE;
chip->base = 0;
chip->can_sleep = false;
@@ -128,7 +128,7 @@ out:
static int octeon_gpio_remove(struct platform_device *pdev)
{
- struct gpio_chip *chip = pdev->dev.platform_data;
+ struct gpio_chip *chip = dev_get_platdata(&pdev->dev);
gpiochip_remove(chip);
return 0;
}
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index f7fbb46d5d79..e183351d047c 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1090,7 +1090,7 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
if (bank->is_mpuio) {
bank->chip.label = "mpuio";
if (bank->regs->wkup_en)
- bank->chip.dev = &omap_mpuio_device.dev;
+ bank->chip.parent = &omap_mpuio_device.dev;
bank->chip.base = OMAP_MPUIO(0);
} else {
bank->chip.label = "gpio";
@@ -1197,7 +1197,7 @@ static int omap_gpio_probe(struct platform_device *pdev)
}
bank->dev = dev;
- bank->chip.dev = dev;
+ bank->chip.parent = dev;
bank->chip.owner = THIS_MODULE;
bank->dbck_flag = pdata->dbck_flag;
bank->stride = pdata->bank_stride;
diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c
index 52b447c071cb..ddd1a00c839d 100644
--- a/drivers/gpio/gpio-palmas.c
+++ b/drivers/gpio/gpio-palmas.c
@@ -54,7 +54,7 @@ static int palmas_gpio_get(struct gpio_chip *gc, unsigned offset)
ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);
if (ret < 0) {
- dev_err(gc->dev, "Reg 0x%02x read failed, %d\n", reg, ret);
+ dev_err(gc->parent, "Reg 0x%02x read failed, %d\n", reg, ret);
return ret;
}
@@ -65,7 +65,7 @@ static int palmas_gpio_get(struct gpio_chip *gc, unsigned offset)
ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);
if (ret < 0) {
- dev_err(gc->dev, "Reg 0x%02x read failed, %d\n", reg, ret);
+ dev_err(gc->parent, "Reg 0x%02x read failed, %d\n", reg, ret);
return ret;
}
return !!(val & BIT(offset));
@@ -90,7 +90,7 @@ static void palmas_gpio_set(struct gpio_chip *gc, unsigned offset,
ret = palmas_write(palmas, PALMAS_GPIO_BASE, reg, BIT(offset));
if (ret < 0)
- dev_err(gc->dev, "Reg 0x%02x write failed, %d\n", reg, ret);
+ dev_err(gc->parent, "Reg 0x%02x write failed, %d\n", reg, ret);
}
static int palmas_gpio_output(struct gpio_chip *gc, unsigned offset,
@@ -111,7 +111,8 @@ static int palmas_gpio_output(struct gpio_chip *gc, unsigned offset,
ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg,
BIT(offset), BIT(offset));
if (ret < 0)
- dev_err(gc->dev, "Reg 0x%02x update failed, %d\n", reg, ret);
+ dev_err(gc->parent, "Reg 0x%02x update failed, %d\n", reg,
+ ret);
return ret;
}
@@ -128,7 +129,8 @@ static int palmas_gpio_input(struct gpio_chip *gc, unsigned offset)
ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg, BIT(offset), 0);
if (ret < 0)
- dev_err(gc->dev, "Reg 0x%02x update failed, %d\n", reg, ret);
+ dev_err(gc->parent, "Reg 0x%02x update failed, %d\n", reg,
+ ret);
return ret;
}
@@ -188,7 +190,7 @@ static int palmas_gpio_probe(struct platform_device *pdev)
palmas_gpio->gpio_chip.to_irq = palmas_gpio_to_irq;
palmas_gpio->gpio_chip.set = palmas_gpio_set;
palmas_gpio->gpio_chip.get = palmas_gpio_get;
- palmas_gpio->gpio_chip.dev = &pdev->dev;
+ palmas_gpio->gpio_chip.parent = &pdev->dev;
#ifdef CONFIG_OF_GPIO
palmas_gpio->gpio_chip.of_node = pdev->dev.of_node;
#endif
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 2d4892cc70fb..be3e3b903ff0 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -18,9 +18,7 @@
#include <linux/i2c.h>
#include <linux/platform_data/pca953x.h>
#include <linux/slab.h>
-#ifdef CONFIG_OF_GPIO
#include <linux/of_platform.h>
-#endif
#include <linux/acpi.h>
#define PCA953X_INPUT 0
@@ -352,6 +350,43 @@ exit:
mutex_unlock(&chip->i2c_lock);
}
+
+static void pca953x_gpio_set_multiple(struct gpio_chip *gc,
+ unsigned long *mask, unsigned long *bits)
+{
+ struct pca953x_chip *chip = to_pca(gc);
+ u8 reg_val[MAX_BANK];
+ int ret, offset = 0;
+ int bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ);
+ int bank;
+
+ switch (chip->chip_type) {
+ case PCA953X_TYPE:
+ offset = PCA953X_OUTPUT;
+ break;
+ case PCA957X_TYPE:
+ offset = PCA957X_OUT;
+ break;
+ }
+
+ memcpy(reg_val, chip->reg_output, NBANK(chip));
+ mutex_lock(&chip->i2c_lock);
+ for(bank=0; bank<NBANK(chip); bank++) {
+ unsigned bankmask = mask[bank/4] >> ((bank % 4) * 8);
+ if(bankmask) {
+ unsigned bankval = bits[bank/4] >> ((bank % 4) * 8);
+ reg_val[bank] = (reg_val[bank] & ~bankmask) | bankval;
+ }
+ }
+ ret = i2c_smbus_write_i2c_block_data(chip->client, offset << bank_shift, NBANK(chip), reg_val);
+ if (ret)
+ goto exit;
+
+ memcpy(chip->reg_output, reg_val, NBANK(chip));
+exit:
+ mutex_unlock(&chip->i2c_lock);
+}
+
static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
{
struct gpio_chip *gc;
@@ -362,12 +397,13 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
gc->direction_output = pca953x_gpio_direction_output;
gc->get = pca953x_gpio_get_value;
gc->set = pca953x_gpio_set_value;
+ gc->set_multiple = pca953x_gpio_set_multiple;
gc->can_sleep = true;
gc->base = chip->gpio_start;
gc->ngpio = gpios;
gc->label = chip->client->name;
- gc->dev = &chip->client->dev;
+ gc->parent = &chip->client->dev;
gc->owner = THIS_MODULE;
gc->names = chip->names;
}
@@ -660,6 +696,8 @@ out:
return ret;
}
+static const struct of_device_id pca953x_dt_ids[];
+
static int pca953x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -691,12 +729,18 @@ static int pca953x_probe(struct i2c_client *client,
chip->driver_data = id->driver_data;
} else {
const struct acpi_device_id *id;
+ const struct of_device_id *match;
- id = acpi_match_device(pca953x_acpi_ids, &client->dev);
- if (!id)
- return -ENODEV;
+ match = of_match_device(pca953x_dt_ids, &client->dev);
+ if (match) {
+ chip->driver_data = (int)(uintptr_t)match->data;
+ } else {
+ id = acpi_match_device(pca953x_acpi_ids, &client->dev);
+ if (!id)
+ return -ENODEV;
- chip->driver_data = id->driver_data;
+ chip->driver_data = id->driver_data;
+ }
}
chip->chip_type = PCA_CHIP_TYPE(chip->driver_data);
@@ -755,33 +799,39 @@ static int pca953x_remove(struct i2c_client *client)
return 0;
}
+/* convenience to stop overlong match-table lines */
+#define OF_953X(__nrgpio, __int) (void *)(__nrgpio | PCA953X_TYPE | __int)
+#define OF_957X(__nrgpio, __int) (void *)(__nrgpio | PCA957X_TYPE | __int)
+
static const struct of_device_id pca953x_dt_ids[] = {
- { .compatible = "nxp,pca9505", },
- { .compatible = "nxp,pca9534", },
- { .compatible = "nxp,pca9535", },
- { .compatible = "nxp,pca9536", },
- { .compatible = "nxp,pca9537", },
- { .compatible = "nxp,pca9538", },
- { .compatible = "nxp,pca9539", },
- { .compatible = "nxp,pca9554", },
- { .compatible = "nxp,pca9555", },
- { .compatible = "nxp,pca9556", },
- { .compatible = "nxp,pca9557", },
- { .compatible = "nxp,pca9574", },
- { .compatible = "nxp,pca9575", },
- { .compatible = "nxp,pca9698", },
-
- { .compatible = "maxim,max7310", },
- { .compatible = "maxim,max7312", },
- { .compatible = "maxim,max7313", },
- { .compatible = "maxim,max7315", },
-
- { .compatible = "ti,pca6107", },
- { .compatible = "ti,tca6408", },
- { .compatible = "ti,tca6416", },
- { .compatible = "ti,tca6424", },
-
- { .compatible = "exar,xra1202", },
+ { .compatible = "nxp,pca9505", .data = OF_953X(40, PCA_INT), },
+ { .compatible = "nxp,pca9534", .data = OF_953X( 8, PCA_INT), },
+ { .compatible = "nxp,pca9535", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "nxp,pca9536", .data = OF_953X( 4, 0), },
+ { .compatible = "nxp,pca9537", .data = OF_953X( 4, PCA_INT), },
+ { .compatible = "nxp,pca9538", .data = OF_953X( 8, PCA_INT), },
+ { .compatible = "nxp,pca9539", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "nxp,pca9554", .data = OF_953X( 8, PCA_INT), },
+ { .compatible = "nxp,pca9555", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "nxp,pca9556", .data = OF_953X( 8, 0), },
+ { .compatible = "nxp,pca9557", .data = OF_953X( 8, 0), },
+ { .compatible = "nxp,pca9574", .data = OF_957X( 8, PCA_INT), },
+ { .compatible = "nxp,pca9575", .data = OF_957X(16, PCA_INT), },
+ { .compatible = "nxp,pca9698", .data = OF_953X(40, 0), },
+
+ { .compatible = "maxim,max7310", .data = OF_953X( 8, 0), },
+ { .compatible = "maxim,max7312", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "maxim,max7313", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "maxim,max7315", .data = OF_953X( 8, PCA_INT), },
+
+ { .compatible = "ti,pca6107", .data = OF_953X( 8, PCA_INT), },
+ { .compatible = "ti,tca6408", .data = OF_953X( 8, PCA_INT), },
+ { .compatible = "ti,tca6416", .data = OF_953X(16, PCA_INT), },
+ { .compatible = "ti,tca6424", .data = OF_953X(24, PCA_INT), },
+
+ { .compatible = "onsemi,pca9654", .data = OF_953X( 8, PCA_INT), },
+
+ { .compatible = "exar,xra1202", .data = OF_953X( 8, 0), },
{ }
};
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 1d4d9bc8b69d..bf511c0efa48 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -293,7 +293,7 @@ static int pcf857x_probe(struct i2c_client *client,
gpio->chip.base = pdata ? pdata->gpio_base : -1;
gpio->chip.can_sleep = true;
- gpio->chip.dev = &client->dev;
+ gpio->chip.parent = &client->dev;
gpio->chip.owner = THIS_MODULE;
gpio->chip.get = pcf857x_get;
gpio->chip.set = pcf857x_set;
@@ -447,7 +447,6 @@ static int pcf857x_remove(struct i2c_client *client)
static struct i2c_driver pcf857x_driver = {
.driver = {
.name = "pcf857x",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(pcf857x_of_table),
},
.probe = pcf857x_probe,
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 34ed176df15a..af0715f8524b 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -220,7 +220,7 @@ static void pch_gpio_setup(struct pch_gpio *chip)
struct gpio_chip *gpio = &chip->gpio;
gpio->label = dev_name(chip->dev);
- gpio->dev = chip->dev;
+ gpio->parent = chip->dev;
gpio->owner = THIS_MODULE;
gpio->direction_input = pch_gpio_direction_input;
gpio->get = pch_gpio_get;
@@ -394,6 +394,9 @@ static int pch_gpio_probe(struct pci_dev *pdev,
pci_set_drvdata(pdev, chip);
spin_lock_init(&chip->spinlock);
pch_gpio_setup(chip);
+#ifdef CONFIG_OF_GPIO
+ chip->gpio.of_node = pdev->dev.of_node;
+#endif
ret = gpiochip_add(&chip->gpio);
if (ret) {
dev_err(&pdev->dev, "PCH gpio: Failed to register GPIO\n");
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 4d4b37676702..f937bc7e42dd 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/io.h>
#include <linux/ioport.h>
+#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/bitops.h>
@@ -131,7 +132,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
if ((trigger & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) &&
(trigger & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)))
{
- dev_err(gc->dev,
+ dev_err(gc->parent,
"trying to configure line %d for both level and edge "
"detection, choose one!\n",
offset);
@@ -158,7 +159,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
else
gpioiev &= ~bit;
irq_set_handler_locked(d, handle_level_irq);
- dev_dbg(gc->dev, "line %d: IRQ on %s level\n",
+ dev_dbg(gc->parent, "line %d: IRQ on %s level\n",
offset,
polarity ? "HIGH" : "LOW");
} else if ((trigger & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) {
@@ -167,7 +168,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
/* Select both edges, setting this makes GPIOEV be ignored */
gpioibe |= bit;
irq_set_handler_locked(d, handle_edge_irq);
- dev_dbg(gc->dev, "line %d: IRQ on both edges\n", offset);
+ dev_dbg(gc->parent, "line %d: IRQ on both edges\n", offset);
} else if ((trigger & IRQ_TYPE_EDGE_RISING) ||
(trigger & IRQ_TYPE_EDGE_FALLING)) {
bool rising = trigger & IRQ_TYPE_EDGE_RISING;
@@ -182,7 +183,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
else
gpioiev &= ~bit;
irq_set_handler_locked(d, handle_edge_irq);
- dev_dbg(gc->dev, "line %d: IRQ on %s edge\n",
+ dev_dbg(gc->parent, "line %d: IRQ on %s edge\n",
offset,
rising ? "RISING" : "FALLING");
} else {
@@ -191,7 +192,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
gpioibe &= ~bit;
gpioiev &= ~bit;
irq_set_handler_locked(d, handle_bad_irq);
- dev_warn(gc->dev, "no trigger selected for line %d\n",
+ dev_warn(gc->parent, "no trigger selected for line %d\n",
offset);
}
@@ -269,12 +270,20 @@ static void pl061_irq_ack(struct irq_data *d)
spin_unlock(&chip->lock);
}
+static int pl061_irq_set_wake(struct irq_data *d, unsigned int state)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+
+ return irq_set_irq_wake(gc->irq_parent, state);
+}
+
static struct irq_chip pl061_irqchip = {
.name = "pl061",
.irq_ack = pl061_irq_ack,
.irq_mask = pl061_irq_mask,
.irq_unmask = pl061_irq_unmask,
.irq_set_type = pl061_irq_type,
+ .irq_set_wake = pl061_irq_set_wake,
};
static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
@@ -316,7 +325,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
chip->gc.set = pl061_set_value;
chip->gc.ngpio = PL061_GPIO_NR;
chip->gc.label = dev_name(dev);
- chip->gc.dev = dev;
+ chip->gc.parent = dev;
chip->gc.owner = THIS_MODULE;
ret = gpiochip_add(&chip->gc);
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index df2ce550f309..eacb4b9b2677 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -24,6 +24,7 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/syscore_ops.h>
#include <linux/slab.h>
@@ -64,20 +65,11 @@
int pxa_last_gpio;
static int irq_base;
-#ifdef CONFIG_OF
-static struct irq_domain *domain;
-static struct device_node *pxa_gpio_of_node;
-#endif
-
-struct pxa_gpio_chip {
- struct gpio_chip chip;
+struct pxa_gpio_bank {
void __iomem *regbase;
- char label[10];
-
unsigned long irq_mask;
unsigned long irq_edge_rise;
unsigned long irq_edge_fall;
- int (*set_wake)(unsigned int gpio, unsigned int on);
#ifdef CONFIG_PM
unsigned long saved_gplr;
@@ -87,6 +79,17 @@ struct pxa_gpio_chip {
#endif
};
+struct pxa_gpio_chip {
+ struct device *dev;
+ struct gpio_chip chip;
+ struct pxa_gpio_bank *banks;
+ struct irq_domain *irqdomain;
+
+ int irq0;
+ int irq1;
+ int (*set_wake)(unsigned int gpio, unsigned int on);
+};
+
enum pxa_gpio_type {
PXA25X_GPIO = 0,
PXA26X_GPIO,
@@ -104,9 +107,8 @@ struct pxa_gpio_id {
};
static DEFINE_SPINLOCK(gpio_lock);
-static struct pxa_gpio_chip *pxa_gpio_chips;
+static struct pxa_gpio_chip *pxa_gpio_chip;
static enum pxa_gpio_type gpio_type;
-static void __iomem *gpio_reg_base;
static struct pxa_gpio_id pxa25x_id = {
.type = PXA25X_GPIO,
@@ -148,17 +150,27 @@ static struct pxa_gpio_id pxa1928_id = {
.gpio_nums = 224,
};
-#define for_each_gpio_chip(i, c) \
- for (i = 0, c = &pxa_gpio_chips[0]; i <= pxa_last_gpio; i += 32, c++)
+#define for_each_gpio_bank(i, b, pc) \
+ for (i = 0, b = pc->banks; i <= pxa_last_gpio; i += 32, b++)
+
+static inline struct pxa_gpio_chip *chip_to_pxachip(struct gpio_chip *c)
+{
+ struct pxa_gpio_chip *pxa_chip =
+ container_of(c, struct pxa_gpio_chip, chip);
-static inline void __iomem *gpio_chip_base(struct gpio_chip *c)
+ return pxa_chip;
+}
+static inline void __iomem *gpio_bank_base(struct gpio_chip *c, int gpio)
{
- return container_of(c, struct pxa_gpio_chip, chip)->regbase;
+ struct pxa_gpio_bank *bank = chip_to_pxachip(c)->banks + (gpio / 32);
+
+ return bank->regbase;
}
-static inline struct pxa_gpio_chip *gpio_to_pxachip(unsigned gpio)
+static inline struct pxa_gpio_bank *gpio_to_pxabank(struct gpio_chip *c,
+ unsigned gpio)
{
- return &pxa_gpio_chips[gpio_to_bank(gpio)];
+ return chip_to_pxachip(c)->banks + gpio / 32;
}
static inline int gpio_is_pxa_type(int type)
@@ -187,15 +199,13 @@ static inline int __gpio_is_inverted(int gpio)
* is attributed as "occupied" here (I know this terminology isn't
* accurate, you are welcome to propose a better one :-)
*/
-static inline int __gpio_is_occupied(unsigned gpio)
+static inline int __gpio_is_occupied(struct pxa_gpio_chip *pchip, unsigned gpio)
{
- struct pxa_gpio_chip *pxachip;
void __iomem *base;
unsigned long gafr = 0, gpdr = 0;
int ret, af = 0, dir = 0;
- pxachip = gpio_to_pxachip(gpio);
- base = gpio_chip_base(&pxachip->chip);
+ base = gpio_bank_base(&pchip->chip, gpio);
gpdr = readl_relaxed(base + GPDR_OFFSET);
switch (gpio_type) {
@@ -218,21 +228,35 @@ static inline int __gpio_is_occupied(unsigned gpio)
return ret;
}
-static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+int pxa_irq_to_gpio(int irq)
{
- return chip->base + offset + irq_base;
+ struct pxa_gpio_chip *pchip = pxa_gpio_chip;
+ int irq_gpio0;
+
+ irq_gpio0 = irq_find_mapping(pchip->irqdomain, 0);
+ if (irq_gpio0 > 0)
+ return irq - irq_gpio0;
+
+ return irq_gpio0;
}
-int pxa_irq_to_gpio(int irq)
+static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
- return irq - irq_base;
+ struct pxa_gpio_chip *pchip = chip_to_pxachip(chip);
+
+ return irq_find_mapping(pchip->irqdomain, offset);
}
static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
- void __iomem *base = gpio_chip_base(chip);
- uint32_t value, mask = 1 << offset;
+ void __iomem *base = gpio_bank_base(chip, offset);
+ uint32_t value, mask = GPIO_bit(offset);
unsigned long flags;
+ int ret;
+
+ ret = pinctrl_gpio_direction_input(chip->base + offset);
+ if (!ret)
+ return 0;
spin_lock_irqsave(&gpio_lock, flags);
@@ -250,12 +274,17 @@ static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int pxa_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
- void __iomem *base = gpio_chip_base(chip);
- uint32_t tmp, mask = 1 << offset;
+ void __iomem *base = gpio_bank_base(chip, offset);
+ uint32_t tmp, mask = GPIO_bit(offset);
unsigned long flags;
+ int ret;
writel_relaxed(mask, base + (value ? GPSR_OFFSET : GPCR_OFFSET));
+ ret = pinctrl_gpio_direction_output(chip->base + offset);
+ if (!ret)
+ return 0;
+
spin_lock_irqsave(&gpio_lock, flags);
tmp = readl_relaxed(base + GPDR_OFFSET);
@@ -271,14 +300,18 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip,
static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- u32 gplr = readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET);
- return !!(gplr & (1 << offset));
+ void __iomem *base = gpio_bank_base(chip, offset);
+ u32 gplr = readl_relaxed(base + GPLR_OFFSET);
+
+ return !!(gplr & GPIO_bit(offset));
}
static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
- writel_relaxed(1 << offset, gpio_chip_base(chip) +
- (value ? GPSR_OFFSET : GPCR_OFFSET));
+ void __iomem *base = gpio_bank_base(chip, offset);
+
+ writel_relaxed(GPIO_bit(offset),
+ base + (value ? GPSR_OFFSET : GPCR_OFFSET));
}
#ifdef CONFIG_OF_GPIO
@@ -289,61 +322,61 @@ static int pxa_gpio_of_xlate(struct gpio_chip *gc,
if (gpiospec->args[0] > pxa_last_gpio)
return -EINVAL;
- if (gc != &pxa_gpio_chips[gpiospec->args[0] / 32].chip)
- return -EINVAL;
-
if (flags)
*flags = gpiospec->args[1];
- return gpiospec->args[0] % 32;
+ return gpiospec->args[0];
}
#endif
-static int pxa_init_gpio_chip(int gpio_end,
- int (*set_wake)(unsigned int, unsigned int))
+static int pxa_gpio_request(struct gpio_chip *chip, unsigned int offset)
{
- int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
- struct pxa_gpio_chip *chips;
-
- chips = kzalloc(nbanks * sizeof(struct pxa_gpio_chip), GFP_KERNEL);
- if (chips == NULL) {
- pr_err("%s: failed to allocate GPIO chips\n", __func__);
- return -ENOMEM;
- }
+ return pinctrl_request_gpio(chip->base + offset);
+}
- for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
- struct gpio_chip *c = &chips[i].chip;
+static void pxa_gpio_free(struct gpio_chip *chip, unsigned int offset)
+{
+ pinctrl_free_gpio(chip->base + offset);
+}
- sprintf(chips[i].label, "gpio-%d", i);
- chips[i].regbase = gpio_reg_base + BANK_OFF(i);
- chips[i].set_wake = set_wake;
+static int pxa_init_gpio_chip(struct pxa_gpio_chip *pchip, int ngpio,
+ struct device_node *np, void __iomem *regbase)
+{
+ int i, gpio, nbanks = DIV_ROUND_UP(ngpio, 32);
+ struct pxa_gpio_bank *bank;
- c->base = gpio;
- c->label = chips[i].label;
+ pchip->banks = devm_kcalloc(pchip->dev, nbanks, sizeof(*pchip->banks),
+ GFP_KERNEL);
+ if (!pchip->banks)
+ return -ENOMEM;
- c->direction_input = pxa_gpio_direction_input;
- c->direction_output = pxa_gpio_direction_output;
- c->get = pxa_gpio_get;
- c->set = pxa_gpio_set;
- c->to_irq = pxa_gpio_to_irq;
+ pchip->chip.label = "gpio-pxa";
+ pchip->chip.direction_input = pxa_gpio_direction_input;
+ pchip->chip.direction_output = pxa_gpio_direction_output;
+ pchip->chip.get = pxa_gpio_get;
+ pchip->chip.set = pxa_gpio_set;
+ pchip->chip.to_irq = pxa_gpio_to_irq;
+ pchip->chip.ngpio = ngpio;
+ pchip->chip.request = pxa_gpio_request;
+ pchip->chip.free = pxa_gpio_free;
#ifdef CONFIG_OF_GPIO
- c->of_node = pxa_gpio_of_node;
- c->of_xlate = pxa_gpio_of_xlate;
- c->of_gpio_n_cells = 2;
+ pchip->chip.of_node = np;
+ pchip->chip.of_xlate = pxa_gpio_of_xlate;
+ pchip->chip.of_gpio_n_cells = 2;
#endif
- /* number of GPIOs on last bank may be less than 32 */
- c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
- gpiochip_add(c);
+ for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
+ bank = pchip->banks + i;
+ bank->regbase = regbase + BANK_OFF(i);
}
- pxa_gpio_chips = chips;
- return 0;
+
+ return gpiochip_add(&pchip->chip);
}
/* Update only those GRERx and GFERx edge detection register bits if those
* bits are set in c->irq_mask
*/
-static inline void update_edge_detect(struct pxa_gpio_chip *c)
+static inline void update_edge_detect(struct pxa_gpio_bank *c)
{
uint32_t grer, gfer;
@@ -357,12 +390,11 @@ static inline void update_edge_detect(struct pxa_gpio_chip *c)
static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
{
- struct pxa_gpio_chip *c;
- int gpio = pxa_irq_to_gpio(d->irq);
+ struct pxa_gpio_chip *pchip = irq_data_get_irq_chip_data(d);
+ unsigned int gpio = irqd_to_hwirq(d);
+ struct pxa_gpio_bank *c = gpio_to_pxabank(&pchip->chip, gpio);
unsigned long gpdr, mask = GPIO_bit(gpio);
- c = gpio_to_pxachip(gpio);
-
if (type == IRQ_TYPE_PROBE) {
/* Don't mess with enabled GPIOs using preconfigured edges or
* GPIOs set to alternate function or to output during probe
@@ -370,7 +402,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
if ((c->irq_edge_rise | c->irq_edge_fall) & GPIO_bit(gpio))
return 0;
- if (__gpio_is_occupied(gpio))
+ if (__gpio_is_occupied(pchip, gpio))
return 0;
type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
@@ -401,20 +433,16 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
return 0;
}
-static void pxa_gpio_demux_handler(struct irq_desc *desc)
+static irqreturn_t pxa_gpio_demux_handler(int in_irq, void *d)
{
- struct pxa_gpio_chip *c;
- int loop, gpio, gpio_base, n;
+ int loop, gpio, n, handled = 0;
unsigned long gedr;
- struct irq_chip *chip = irq_desc_get_chip(desc);
-
- chained_irq_enter(chip, desc);
+ struct pxa_gpio_chip *pchip = d;
+ struct pxa_gpio_bank *c;
do {
loop = 0;
- for_each_gpio_chip(gpio, c) {
- gpio_base = c->chip.base;
-
+ for_each_gpio_bank(gpio, c, pchip) {
gedr = readl_relaxed(c->regbase + GEDR_OFFSET);
gedr = gedr & c->irq_mask;
writel_relaxed(gedr, c->regbase + GEDR_OFFSET);
@@ -422,51 +450,71 @@ static void pxa_gpio_demux_handler(struct irq_desc *desc)
for_each_set_bit(n, &gedr, BITS_PER_LONG) {
loop = 1;
- generic_handle_irq(gpio_to_irq(gpio_base + n));
+ generic_handle_irq(gpio_to_irq(gpio + n));
}
}
+ handled += loop;
} while (loop);
- chained_irq_exit(chip, desc);
+ return handled ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static irqreturn_t pxa_gpio_direct_handler(int in_irq, void *d)
+{
+ struct pxa_gpio_chip *pchip = d;
+
+ if (in_irq == pchip->irq0) {
+ generic_handle_irq(gpio_to_irq(0));
+ } else if (in_irq == pchip->irq1) {
+ generic_handle_irq(gpio_to_irq(1));
+ } else {
+ pr_err("%s() unknown irq %d\n", __func__, in_irq);
+ return IRQ_NONE;
+ }
+ return IRQ_HANDLED;
}
static void pxa_ack_muxed_gpio(struct irq_data *d)
{
- int gpio = pxa_irq_to_gpio(d->irq);
- struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
+ struct pxa_gpio_chip *pchip = irq_data_get_irq_chip_data(d);
+ unsigned int gpio = irqd_to_hwirq(d);
+ void __iomem *base = gpio_bank_base(&pchip->chip, gpio);
- writel_relaxed(GPIO_bit(gpio), c->regbase + GEDR_OFFSET);
+ writel_relaxed(GPIO_bit(gpio), base + GEDR_OFFSET);
}
static void pxa_mask_muxed_gpio(struct irq_data *d)
{
- int gpio = pxa_irq_to_gpio(d->irq);
- struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
+ struct pxa_gpio_chip *pchip = irq_data_get_irq_chip_data(d);
+ unsigned int gpio = irqd_to_hwirq(d);
+ struct pxa_gpio_bank *b = gpio_to_pxabank(&pchip->chip, gpio);
+ void __iomem *base = gpio_bank_base(&pchip->chip, gpio);
uint32_t grer, gfer;
- c->irq_mask &= ~GPIO_bit(gpio);
+ b->irq_mask &= ~GPIO_bit(gpio);
- grer = readl_relaxed(c->regbase + GRER_OFFSET) & ~GPIO_bit(gpio);
- gfer = readl_relaxed(c->regbase + GFER_OFFSET) & ~GPIO_bit(gpio);
- writel_relaxed(grer, c->regbase + GRER_OFFSET);
- writel_relaxed(gfer, c->regbase + GFER_OFFSET);
+ grer = readl_relaxed(base + GRER_OFFSET) & ~GPIO_bit(gpio);
+ gfer = readl_relaxed(base + GFER_OFFSET) & ~GPIO_bit(gpio);
+ writel_relaxed(grer, base + GRER_OFFSET);
+ writel_relaxed(gfer, base + GFER_OFFSET);
}
static int pxa_gpio_set_wake(struct irq_data *d, unsigned int on)
{
- int gpio = pxa_irq_to_gpio(d->irq);
- struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
+ struct pxa_gpio_chip *pchip = irq_data_get_irq_chip_data(d);
+ unsigned int gpio = irqd_to_hwirq(d);
- if (c->set_wake)
- return c->set_wake(gpio, on);
+ if (pchip->set_wake)
+ return pchip->set_wake(gpio, on);
else
return 0;
}
static void pxa_unmask_muxed_gpio(struct irq_data *d)
{
- int gpio = pxa_irq_to_gpio(d->irq);
- struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
+ struct pxa_gpio_chip *pchip = irq_data_get_irq_chip_data(d);
+ unsigned int gpio = irqd_to_hwirq(d);
+ struct pxa_gpio_bank *c = gpio_to_pxabank(&pchip->chip, gpio);
c->irq_mask |= GPIO_bit(gpio);
update_edge_detect(c);
@@ -524,6 +572,7 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
{
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
+ irq_set_chip_data(irq, d->host_data);
irq_set_noprobe(irq);
return 0;
}
@@ -533,10 +582,10 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
.xlate = irq_domain_xlate_twocell,
};
-static int pxa_gpio_probe_dt(struct platform_device *pdev)
+static int pxa_gpio_probe_dt(struct platform_device *pdev,
+ struct pxa_gpio_chip *pchip)
{
- int ret = 0, nr_gpios;
- struct device_node *np = pdev->dev.of_node;
+ int nr_gpios;
const struct of_device_id *of_id =
of_match_device(pxa_gpio_dt_ids, &pdev->dev);
const struct pxa_gpio_id *gpio_id;
@@ -554,57 +603,64 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
if (irq_base < 0) {
dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
- ret = irq_base;
- goto err;
+ return irq_base;
}
- domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
- &pxa_irq_domain_ops, NULL);
- pxa_gpio_of_node = np;
- return 0;
-err:
- iounmap(gpio_reg_base);
- return ret;
+ return irq_base;
}
#else
-#define pxa_gpio_probe_dt(pdev) (-1)
+#define pxa_gpio_probe_dt(pdev, pchip) (-1)
#endif
static int pxa_gpio_probe(struct platform_device *pdev)
{
- struct pxa_gpio_chip *c;
+ struct pxa_gpio_chip *pchip;
+ struct pxa_gpio_bank *c;
struct resource *res;
struct clk *clk;
struct pxa_gpio_platform_data *info;
- int gpio, irq, ret, use_of = 0;
+ void __iomem *gpio_reg_base;
+ int gpio, ret;
int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
+ pchip = devm_kzalloc(&pdev->dev, sizeof(*pchip), GFP_KERNEL);
+ if (!pchip)
+ return -ENOMEM;
+ pchip->dev = &pdev->dev;
+
info = dev_get_platdata(&pdev->dev);
if (info) {
irq_base = info->irq_base;
if (irq_base <= 0)
return -EINVAL;
pxa_last_gpio = pxa_gpio_nums(pdev);
+ pchip->set_wake = info->gpio_set_wake;
} else {
- irq_base = 0;
- use_of = 1;
- ret = pxa_gpio_probe_dt(pdev);
- if (ret < 0)
+ irq_base = pxa_gpio_probe_dt(pdev, pchip);
+ if (irq_base < 0)
return -EINVAL;
}
if (!pxa_last_gpio)
return -EINVAL;
+ pchip->irqdomain = irq_domain_add_legacy(pdev->dev.of_node,
+ pxa_last_gpio + 1, irq_base,
+ 0, &pxa_irq_domain_ops, pchip);
+ if (IS_ERR(pchip->irqdomain))
+ return PTR_ERR(pchip->irqdomain);
+
irq0 = platform_get_irq_byname(pdev, "gpio0");
irq1 = platform_get_irq_byname(pdev, "gpio1");
irq_mux = platform_get_irq_byname(pdev, "gpio_mux");
if ((irq0 > 0 && irq1 <= 0) || (irq0 <= 0 && irq1 > 0)
|| (irq_mux <= 0))
return -EINVAL;
+
+ pchip->irq0 = irq0;
+ pchip->irq1 = irq1;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EINVAL;
- gpio_reg_base = ioremap(res->start, resource_size(res));
+ gpio_reg_base = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
if (!gpio_reg_base)
return -EINVAL;
@@ -615,21 +671,24 @@ static int pxa_gpio_probe(struct platform_device *pdev)
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "Error %ld to get gpio clock\n",
PTR_ERR(clk));
- iounmap(gpio_reg_base);
return PTR_ERR(clk);
}
ret = clk_prepare_enable(clk);
if (ret) {
clk_put(clk);
- iounmap(gpio_reg_base);
return ret;
}
/* Initialize GPIO chips */
- pxa_init_gpio_chip(pxa_last_gpio, info ? info->gpio_set_wake : NULL);
+ ret = pxa_init_gpio_chip(pchip, pxa_last_gpio + 1, pdev->dev.of_node,
+ gpio_reg_base);
+ if (ret) {
+ clk_put(clk);
+ return ret;
+ }
/* clear all GPIO edge detects */
- for_each_gpio_chip(gpio, c) {
+ for_each_gpio_bank(gpio, c, pchip) {
writel_relaxed(0, c->regbase + GFER_OFFSET);
writel_relaxed(0, c->regbase + GRER_OFFSET);
writel_relaxed(~0, c->regbase + GEDR_OFFSET);
@@ -638,34 +697,31 @@ static int pxa_gpio_probe(struct platform_device *pdev)
writel_relaxed(~0, c->regbase + ED_MASK_OFFSET);
}
- if (!use_of) {
- if (irq0 > 0) {
- irq = gpio_to_irq(0);
- irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
- handle_edge_irq);
- irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
- }
- if (irq1 > 0) {
- irq = gpio_to_irq(1);
- irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
- handle_edge_irq);
- irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
- }
-
- for (irq = gpio_to_irq(gpio_offset);
- irq <= gpio_to_irq(pxa_last_gpio); irq++) {
- irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
- handle_edge_irq);
- irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
- }
+ if (irq0 > 0) {
+ ret = devm_request_irq(&pdev->dev,
+ irq0, pxa_gpio_direct_handler, 0,
+ "gpio-0", pchip);
+ if (ret)
+ dev_err(&pdev->dev, "request of gpio0 irq failed: %d\n",
+ ret);
}
+ if (irq1 > 0) {
+ ret = devm_request_irq(&pdev->dev,
+ irq1, pxa_gpio_direct_handler, 0,
+ "gpio-1", pchip);
+ if (ret)
+ dev_err(&pdev->dev, "request of gpio1 irq failed: %d\n",
+ ret);
+ }
+ ret = devm_request_irq(&pdev->dev,
+ irq_mux, pxa_gpio_demux_handler, 0,
+ "gpio-mux", pchip);
+ if (ret)
+ dev_err(&pdev->dev, "request of gpio-mux irq failed: %d\n",
+ ret);
- if (irq0 > 0)
- irq_set_chained_handler(irq0, pxa_gpio_demux_handler);
- if (irq1 > 0)
- irq_set_chained_handler(irq1, pxa_gpio_demux_handler);
+ pxa_gpio_chip = pchip;
- irq_set_chained_handler(irq_mux, pxa_gpio_demux_handler);
return 0;
}
@@ -690,19 +746,32 @@ static struct platform_driver pxa_gpio_driver = {
.id_table = gpio_id_table,
};
-static int __init pxa_gpio_init(void)
+static int __init pxa_gpio_legacy_init(void)
{
+ if (of_have_populated_dt())
+ return 0;
+
return platform_driver_register(&pxa_gpio_driver);
}
-postcore_initcall(pxa_gpio_init);
+postcore_initcall(pxa_gpio_legacy_init);
+
+static int __init pxa_gpio_dt_init(void)
+{
+ if (of_have_populated_dt())
+ return platform_driver_register(&pxa_gpio_driver);
+
+ return 0;
+}
+device_initcall(pxa_gpio_dt_init);
#ifdef CONFIG_PM
static int pxa_gpio_suspend(void)
{
- struct pxa_gpio_chip *c;
+ struct pxa_gpio_chip *pchip = pxa_gpio_chip;
+ struct pxa_gpio_bank *c;
int gpio;
- for_each_gpio_chip(gpio, c) {
+ for_each_gpio_bank(gpio, c, pchip) {
c->saved_gplr = readl_relaxed(c->regbase + GPLR_OFFSET);
c->saved_gpdr = readl_relaxed(c->regbase + GPDR_OFFSET);
c->saved_grer = readl_relaxed(c->regbase + GRER_OFFSET);
@@ -716,10 +785,11 @@ static int pxa_gpio_suspend(void)
static void pxa_gpio_resume(void)
{
- struct pxa_gpio_chip *c;
+ struct pxa_gpio_chip *pchip = pxa_gpio_chip;
+ struct pxa_gpio_bank *c;
int gpio;
- for_each_gpio_chip(gpio, c) {
+ for_each_gpio_bank(gpio, c, pchip) {
/* restore level with set/clear */
writel_relaxed(c->saved_gplr, c->regbase + GPSR_OFFSET);
writel_relaxed(~c->saved_gplr, c->regbase + GPCR_OFFSET);
diff --git a/drivers/gpio/gpio-rc5t583.c b/drivers/gpio/gpio-rc5t583.c
index 6eabf239676b..f26d9f7d8cdd 100644
--- a/drivers/gpio/gpio-rc5t583.c
+++ b/drivers/gpio/gpio-rc5t583.c
@@ -132,7 +132,7 @@ static int rc5t583_gpio_probe(struct platform_device *pdev)
rc5t583_gpio->gpio_chip.to_irq = rc5t583_gpio_to_irq,
rc5t583_gpio->gpio_chip.ngpio = RC5T583_MAX_GPIO,
rc5t583_gpio->gpio_chip.can_sleep = true,
- rc5t583_gpio->gpio_chip.dev = &pdev->dev;
+ rc5t583_gpio->gpio_chip.parent = &pdev->dev;
rc5t583_gpio->gpio_chip.base = -1;
rc5t583_gpio->rc5t583 = rc5t583;
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 2a8122444614..624a435e6988 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -25,7 +25,6 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/platform_data/gpio-rcar.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/spinlock.h>
@@ -34,12 +33,13 @@
struct gpio_rcar_priv {
void __iomem *base;
spinlock_t lock;
- struct gpio_rcar_config config;
struct platform_device *pdev;
struct gpio_chip gpio_chip;
struct irq_chip irq_chip;
- unsigned int irq_parent;
struct clk *clk;
+ unsigned int irq_parent;
+ bool has_both_edge_trigger;
+ bool needs_clk;
};
#define IOINTSEL 0x00 /* General IO/Interrupt Switching Register */
@@ -121,7 +121,7 @@ static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p,
gpio_rcar_modify_bit(p, EDGLEVEL, hwirq, !level_trigger);
/* Select one edge or both edges in BOTHEDGE */
- if (p->config.has_both_edge_trigger)
+ if (p->has_both_edge_trigger)
gpio_rcar_modify_bit(p, BOTHEDGE, hwirq, both);
/* Select "Interrupt Input Mode" in IOINTSEL */
@@ -161,7 +161,7 @@ static int gpio_rcar_irq_set_type(struct irq_data *d, unsigned int type)
false);
break;
case IRQ_TYPE_EDGE_BOTH:
- if (!p->config.has_both_edge_trigger)
+ if (!p->has_both_edge_trigger)
return -EINVAL;
gpio_rcar_config_interrupt_input_mode(p, hwirq, true, false,
true);
@@ -318,14 +318,17 @@ static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset,
struct gpio_rcar_info {
bool has_both_edge_trigger;
+ bool needs_clk;
};
static const struct gpio_rcar_info gpio_rcar_info_gen1 = {
.has_both_edge_trigger = false,
+ .needs_clk = false,
};
static const struct gpio_rcar_info gpio_rcar_info_gen2 = {
.has_both_edge_trigger = true,
+ .needs_clk = true,
};
static const struct of_device_id gpio_rcar_of_table[] = {
@@ -355,39 +358,30 @@ static const struct of_device_id gpio_rcar_of_table[] = {
MODULE_DEVICE_TABLE(of, gpio_rcar_of_table);
-static int gpio_rcar_parse_pdata(struct gpio_rcar_priv *p)
+static int gpio_rcar_parse_dt(struct gpio_rcar_priv *p, unsigned int *npins)
{
- struct gpio_rcar_config *pdata = dev_get_platdata(&p->pdev->dev);
struct device_node *np = p->pdev->dev.of_node;
+ const struct of_device_id *match;
+ const struct gpio_rcar_info *info;
struct of_phandle_args args;
int ret;
- if (pdata) {
- p->config = *pdata;
- } else if (IS_ENABLED(CONFIG_OF) && np) {
- const struct of_device_id *match;
- const struct gpio_rcar_info *info;
-
- match = of_match_node(gpio_rcar_of_table, np);
- if (!match)
- return -EINVAL;
+ match = of_match_node(gpio_rcar_of_table, np);
+ if (!match)
+ return -EINVAL;
- info = match->data;
+ info = match->data;
- ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0,
- &args);
- p->config.number_of_pins = ret == 0 ? args.args[2]
- : RCAR_MAX_GPIO_PER_BANK;
- p->config.gpio_base = -1;
- p->config.has_both_edge_trigger = info->has_both_edge_trigger;
- }
+ ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &args);
+ *npins = ret == 0 ? args.args[2] : RCAR_MAX_GPIO_PER_BANK;
+ p->has_both_edge_trigger = info->has_both_edge_trigger;
+ p->needs_clk = info->needs_clk;
- if (p->config.number_of_pins == 0 ||
- p->config.number_of_pins > RCAR_MAX_GPIO_PER_BANK) {
+ if (*npins == 0 || *npins > RCAR_MAX_GPIO_PER_BANK) {
dev_warn(&p->pdev->dev,
- "Invalid number of gpio lines %u, using %u\n",
- p->config.number_of_pins, RCAR_MAX_GPIO_PER_BANK);
- p->config.number_of_pins = RCAR_MAX_GPIO_PER_BANK;
+ "Invalid number of gpio lines %u, using %u\n", *npins,
+ RCAR_MAX_GPIO_PER_BANK);
+ *npins = RCAR_MAX_GPIO_PER_BANK;
}
return 0;
@@ -401,6 +395,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
struct irq_chip *irq_chip;
struct device *dev = &pdev->dev;
const char *name = dev_name(dev);
+ unsigned int npins;
int ret;
p = devm_kzalloc(dev, sizeof(*p), GFP_KERNEL);
@@ -410,8 +405,8 @@ static int gpio_rcar_probe(struct platform_device *pdev)
p->pdev = pdev;
spin_lock_init(&p->lock);
- /* Get device configuration from DT node or platform data. */
- ret = gpio_rcar_parse_pdata(p);
+ /* Get device configuration from DT node */
+ ret = gpio_rcar_parse_dt(p, &npins);
if (ret < 0)
return ret;
@@ -419,7 +414,11 @@ static int gpio_rcar_probe(struct platform_device *pdev)
p->clk = devm_clk_get(dev, NULL);
if (IS_ERR(p->clk)) {
- dev_warn(dev, "unable to get clock\n");
+ if (p->needs_clk) {
+ dev_err(dev, "unable to get clock\n");
+ ret = PTR_ERR(p->clk);
+ goto err0;
+ }
p->clk = NULL;
}
@@ -449,10 +448,10 @@ static int gpio_rcar_probe(struct platform_device *pdev)
gpio_chip->direction_output = gpio_rcar_direction_output;
gpio_chip->set = gpio_rcar_set;
gpio_chip->label = name;
- gpio_chip->dev = dev;
+ gpio_chip->parent = dev;
gpio_chip->owner = THIS_MODULE;
- gpio_chip->base = p->config.gpio_base;
- gpio_chip->ngpio = p->config.number_of_pins;
+ gpio_chip->base = -1;
+ gpio_chip->ngpio = npins;
irq_chip = &p->irq_chip;
irq_chip->name = name;
@@ -468,8 +467,8 @@ static int gpio_rcar_probe(struct platform_device *pdev)
goto err0;
}
- ret = gpiochip_irqchip_add(gpio_chip, irq_chip, p->config.irq_base,
- handle_level_irq, IRQ_TYPE_NONE);
+ ret = gpiochip_irqchip_add(gpio_chip, irq_chip, 0, handle_level_irq,
+ IRQ_TYPE_NONE);
if (ret) {
dev_err(dev, "cannot add irqchip\n");
goto err1;
@@ -483,22 +482,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
goto err1;
}
- dev_info(dev, "driving %d GPIOs\n", p->config.number_of_pins);
-
- /* warn in case of mismatch if irq base is specified */
- if (p->config.irq_base) {
- ret = irq_find_mapping(gpio_chip->irqdomain, 0);
- if (p->config.irq_base != ret)
- dev_warn(dev, "irq base mismatch (%u/%u)\n",
- p->config.irq_base, ret);
- }
-
- if (p->config.pctl_name) {
- ret = gpiochip_add_pin_range(gpio_chip, p->config.pctl_name, 0,
- gpio_chip->base, gpio_chip->ngpio);
- if (ret < 0)
- dev_warn(dev, "failed to add pin range\n");
- }
+ dev_info(dev, "driving %d GPIOs\n", npins);
return 0;
diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
index b72906f5b999..a8a333ade9aa 100644
--- a/drivers/gpio/gpio-sch.c
+++ b/drivers/gpio/gpio-sch.c
@@ -171,7 +171,7 @@ static int sch_gpio_probe(struct platform_device *pdev)
sch->iobase = res->start;
sch->chip = sch_gpio_chip;
sch->chip.label = dev_name(&pdev->dev);
- sch->chip.dev = &pdev->dev;
+ sch->chip.parent = &pdev->dev;
switch (pdev->id) {
case PCI_DEVICE_ID_INTEL_SCH_LPC:
diff --git a/drivers/gpio/gpio-sch311x.c b/drivers/gpio/gpio-sch311x.c
index 0cb11413e814..b454792de778 100644
--- a/drivers/gpio/gpio-sch311x.c
+++ b/drivers/gpio/gpio-sch311x.c
@@ -149,7 +149,7 @@ static int sch311x_gpio_request(struct gpio_chip *chip, unsigned offset)
if (!request_region(block->runtime_reg + block->config_regs[offset],
1, DRV_NAME)) {
- dev_err(chip->dev, "Failed to request region 0x%04x.\n",
+ dev_err(chip->parent, "Failed to request region 0x%04x.\n",
block->runtime_reg + block->config_regs[offset]);
return -EBUSY;
}
@@ -229,7 +229,7 @@ static int sch311x_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
static int sch311x_gpio_probe(struct platform_device *pdev)
{
- struct sch311x_pdev_data *pdata = pdev->dev.platform_data;
+ struct sch311x_pdev_data *pdata = dev_get_platdata(&pdev->dev);
struct sch311x_gpio_priv *priv;
struct sch311x_gpio_block *block;
int err, i;
@@ -261,7 +261,7 @@ static int sch311x_gpio_probe(struct platform_device *pdev)
block->chip.get = sch311x_gpio_get;
block->chip.set = sch311x_gpio_set;
block->chip.ngpio = 8;
- block->chip.dev = &pdev->dev;
+ block->chip.parent = &pdev->dev;
block->chip.base = sch311x_gpio_blocks[i].base;
block->config_regs = sch311x_gpio_blocks[i].config_regs;
block->data_reg = sch311x_gpio_blocks[i].data_reg;
@@ -289,7 +289,7 @@ exit_err:
static int sch311x_gpio_remove(struct platform_device *pdev)
{
- struct sch311x_pdev_data *pdata = pdev->dev.platform_data;
+ struct sch311x_pdev_data *pdata = dev_get_platdata(&pdev->dev);
struct sch311x_gpio_priv *priv = platform_get_drvdata(pdev);
int i;
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c
index 69ffca5b073b..bd436b7f86e1 100644
--- a/drivers/gpio/gpio-spear-spics.c
+++ b/drivers/gpio/gpio-spear-spics.c
@@ -164,7 +164,7 @@ static int spics_gpio_probe(struct platform_device *pdev)
spics->chip.get = spics_get_value;
spics->chip.set = spics_set_value;
spics->chip.label = dev_name(&pdev->dev);
- spics->chip.dev = &pdev->dev;
+ spics->chip.parent = &pdev->dev;
spics->chip.owner = THIS_MODULE;
spics->last_off = -1;
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index dabfb99dddef..9e471979aa9e 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -356,7 +356,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
stmpe_gpio->stmpe = stmpe;
stmpe_gpio->chip = template_chip;
stmpe_gpio->chip.ngpio = stmpe->num_gpios;
- stmpe_gpio->chip.dev = &pdev->dev;
+ stmpe_gpio->chip.parent = &pdev->dev;
stmpe_gpio->chip.of_node = np;
stmpe_gpio->chip.base = -1;
diff --git a/drivers/gpio/gpio-stp-xway.c b/drivers/gpio/gpio-stp-xway.c
index 81bdbe7ba2a4..c250f21b9e40 100644
--- a/drivers/gpio/gpio-stp-xway.c
+++ b/drivers/gpio/gpio-stp-xway.c
@@ -139,7 +139,7 @@ static int xway_stp_request(struct gpio_chip *gc, unsigned gpio)
container_of(gc, struct xway_stp, gc);
if ((gpio < 8) && (chip->reserved & BIT(gpio))) {
- dev_err(gc->dev, "GPIO %d is driven by hardware\n", gpio);
+ dev_err(gc->parent, "GPIO %d is driven by hardware\n", gpio);
return -ENODEV;
}
@@ -214,7 +214,7 @@ static int xway_stp_probe(struct platform_device *pdev)
if (IS_ERR(chip->virt))
return PTR_ERR(chip->virt);
- chip->gc.dev = &pdev->dev;
+ chip->gc.parent = &pdev->dev;
chip->gc.label = "stp-xway";
chip->gc.direction_output = xway_stp_dir_out;
chip->gc.set = xway_stp_set;
diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c
index 76f920173a2f..cf12d8e3ce3e 100644
--- a/drivers/gpio/gpio-sx150x.c
+++ b/drivers/gpio/gpio-sx150x.c
@@ -473,7 +473,7 @@ static void sx150x_init_chip(struct sx150x_chip *chip,
chip->client = client;
chip->dev_cfg = &sx150x_devices[driver_data];
- chip->gpio_chip.dev = &client->dev;
+ chip->gpio_chip.parent = &client->dev;
chip->gpio_chip.label = client->name;
chip->gpio_chip.direction_input = sx150x_gpio_direction_input;
chip->gpio_chip.direction_output = sx150x_gpio_direction_output;
@@ -680,7 +680,6 @@ static int sx150x_remove(struct i2c_client *client)
static struct i2c_driver sx150x_driver = {
.driver = {
.name = "sx150x",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(sx150x_of_match),
},
.probe = sx150x_probe,
diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 7b25fdf64802..333d5af4abd1 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c
@@ -159,7 +159,7 @@ static void keystone_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
BIT(offs % SYSCON_REG_BITS) | KEYSTONE_LOCK_BIT,
BIT(offs % SYSCON_REG_BITS) | KEYSTONE_LOCK_BIT);
if (ret < 0)
- dev_err(chip->dev, "gpio write failed ret(%d)\n", ret);
+ dev_err(chip->parent, "gpio write failed ret(%d)\n", ret);
}
static const struct syscon_gpio_data keystone_dsp_gpio = {
@@ -228,7 +228,7 @@ static int syscon_gpio_probe(struct platform_device *pdev)
priv->dir_reg_offset <<= 3;
}
- priv->chip.dev = dev;
+ priv->chip.parent = dev;
priv->chip.owner = THIS_MODULE;
priv->chip.label = dev_name(dev);
priv->chip.base = -1;
diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
index 4356e6c20fc5..1a7c3efae5d8 100644
--- a/drivers/gpio/gpio-tb10x.c
+++ b/drivers/gpio/gpio-tb10x.c
@@ -197,7 +197,7 @@ static int tb10x_gpio_probe(struct platform_device *pdev)
return PTR_ERR(tb10x_gpio->base);
tb10x_gpio->gc.label = of_node_full_name(dn);
- tb10x_gpio->gc.dev = &pdev->dev;
+ tb10x_gpio->gc.parent = &pdev->dev;
tb10x_gpio->gc.owner = THIS_MODULE;
tb10x_gpio->gc.direction_input = tb10x_gpio_direction_in;
tb10x_gpio->gc.get = tb10x_gpio_get;
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index d1d585ddb9ab..7c1537ed6dff 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -258,7 +258,7 @@ static int tc3589x_gpio_probe(struct platform_device *pdev)
tc3589x_gpio->chip = template_chip;
tc3589x_gpio->chip.ngpio = tc3589x->num_gpio;
- tc3589x_gpio->chip.dev = &pdev->dev;
+ tc3589x_gpio->chip.parent = &pdev->dev;
tc3589x_gpio->chip.base = -1;
tc3589x_gpio->chip.of_node = np;
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index 30653e6319e9..dda8f21811eb 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -268,7 +268,7 @@ static int timbgpio_probe(struct platform_device *pdev)
gc->label = dev_name(&pdev->dev);
gc->owner = THIS_MODULE;
- gc->dev = &pdev->dev;
+ gc->parent = &pdev->dev;
gc->direction_input = timbgpio_gpio_direction_input;
gc->get = timbgpio_gpio_get;
gc->direction_output = timbgpio_gpio_direction_output;
diff --git a/drivers/gpio/gpio-tps6586x.c b/drivers/gpio/gpio-tps6586x.c
index 9c9238e838a9..89b2249100b0 100644
--- a/drivers/gpio/gpio-tps6586x.c
+++ b/drivers/gpio/gpio-tps6586x.c
@@ -104,7 +104,7 @@ static int tps6586x_gpio_probe(struct platform_device *pdev)
tps6586x_gpio->gpio_chip.owner = THIS_MODULE;
tps6586x_gpio->gpio_chip.label = pdev->name;
- tps6586x_gpio->gpio_chip.dev = &pdev->dev;
+ tps6586x_gpio->gpio_chip.parent = &pdev->dev;
tps6586x_gpio->gpio_chip.ngpio = 4;
tps6586x_gpio->gpio_chip.can_sleep = true;
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c
index 88f1f5ff4e96..83894c0387fb 100644
--- a/drivers/gpio/gpio-tps65910.c
+++ b/drivers/gpio/gpio-tps65910.c
@@ -146,7 +146,7 @@ static int tps65910_gpio_probe(struct platform_device *pdev)
tps65910_gpio->gpio_chip.direction_output = tps65910_gpio_output;
tps65910_gpio->gpio_chip.set = tps65910_gpio_set;
tps65910_gpio->gpio_chip.get = tps65910_gpio_get;
- tps65910_gpio->gpio_chip.dev = &pdev->dev;
+ tps65910_gpio->gpio_chip.parent = &pdev->dev;
#ifdef CONFIG_OF_GPIO
tps65910_gpio->gpio_chip.of_node = tps65910->dev->of_node;
#endif
diff --git a/drivers/gpio/gpio-tps65912.c b/drivers/gpio/gpio-tps65912.c
index 9cdbc0c9cb2d..0f073ffa74cf 100644
--- a/drivers/gpio/gpio-tps65912.c
+++ b/drivers/gpio/gpio-tps65912.c
@@ -104,7 +104,7 @@ static int tps65912_gpio_probe(struct platform_device *pdev)
tps65912_gpio->tps65912 = tps65912;
tps65912_gpio->gpio_chip = template_chip;
- tps65912_gpio->gpio_chip.dev = &pdev->dev;
+ tps65912_gpio->gpio_chip.parent = &pdev->dev;
if (pdata && pdata->gpio_base)
tps65912_gpio->gpio_chip.base = pdata->gpio_base;
diff --git a/drivers/gpio/gpio-ts5500.c b/drivers/gpio/gpio-ts5500.c
index b29a102d136b..aafe7910e030 100644
--- a/drivers/gpio/gpio-ts5500.c
+++ b/drivers/gpio/gpio-ts5500.c
@@ -315,7 +315,8 @@ static void ts5500_disable_irq(struct ts5500_priv *priv)
else if (priv->hwirq == 1)
ts5500_clear_mask(BIT(6), 0x7d); /* LCD_RS on IRQ1 */
else
- dev_err(priv->gpio_chip.dev, "invalid hwirq %d\n", priv->hwirq);
+ dev_err(priv->gpio_chip.parent, "invalid hwirq %d\n",
+ priv->hwirq);
spin_unlock_irqrestore(&priv->lock, flags);
}
@@ -346,7 +347,7 @@ static int ts5500_dio_probe(struct platform_device *pdev)
priv->gpio_chip.owner = THIS_MODULE;
priv->gpio_chip.label = name;
- priv->gpio_chip.dev = dev;
+ priv->gpio_chip.parent = dev;
priv->gpio_chip.direction_input = ts5500_gpio_input;
priv->gpio_chip.direction_output = ts5500_gpio_output;
priv->gpio_chip.get = ts5500_gpio_get;
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index 9e1dbb9877c1..14f40bf64e34 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -256,7 +256,7 @@ static int twl_request(struct gpio_chip *chip, unsigned offset)
/* optionally have the first two GPIOs switch vMMC1
* and vMMC2 power supplies based on card presence.
*/
- pdata = dev_get_platdata(chip->dev);
+ pdata = dev_get_platdata(chip->parent);
if (pdata)
value |= pdata->mmc_cd & 0x03;
@@ -509,7 +509,7 @@ no_irqs:
priv->gpio_chip = template_chip;
priv->gpio_chip.base = -1;
priv->gpio_chip.ngpio = TWL4030_GPIO_MAX;
- priv->gpio_chip.dev = &pdev->dev;
+ priv->gpio_chip.parent = &pdev->dev;
mutex_init(&priv->mutex);
diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c
index c946e7eef3ee..2da7c5f70034 100644
--- a/drivers/gpio/gpio-twl6040.c
+++ b/drivers/gpio/gpio-twl6040.c
@@ -36,7 +36,7 @@ static struct gpio_chip twl6040gpo_chip;
static int twl6040gpo_get(struct gpio_chip *chip, unsigned offset)
{
- struct twl6040 *twl6040 = dev_get_drvdata(chip->dev->parent);
+ struct twl6040 *twl6040 = dev_get_drvdata(chip->parent->parent);
int ret = 0;
ret = twl6040_reg_read(twl6040, TWL6040_REG_GPOCTL);
@@ -55,7 +55,7 @@ static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned offset,
static void twl6040gpo_set(struct gpio_chip *chip, unsigned offset, int value)
{
- struct twl6040 *twl6040 = dev_get_drvdata(chip->dev->parent);
+ struct twl6040 *twl6040 = dev_get_drvdata(chip->parent->parent);
int ret;
u8 gpoctl;
@@ -95,7 +95,7 @@ static int gpo_twl6040_probe(struct platform_device *pdev)
else
twl6040gpo_chip.ngpio = 1; /* twl6041 have 1 GPO */
- twl6040gpo_chip.dev = &pdev->dev;
+ twl6040gpo_chip.parent = &pdev->dev;
#ifdef CONFIG_OF_GPIO
twl6040gpo_chip.of_node = twl6040_core_dev->of_node;
#endif
diff --git a/drivers/gpio/gpio-tz1090-pdc.c b/drivers/gpio/gpio-tz1090-pdc.c
index 3623d009d808..0a01c8736aff 100644
--- a/drivers/gpio/gpio-tz1090-pdc.c
+++ b/drivers/gpio/gpio-tz1090-pdc.c
@@ -188,7 +188,7 @@ static int tz1090_pdc_gpio_probe(struct platform_device *pdev)
/* Set up GPIO chip */
priv->chip.label = "tz1090-pdc-gpio";
- priv->chip.dev = &pdev->dev;
+ priv->chip.parent = &pdev->dev;
priv->chip.direction_input = tz1090_pdc_gpio_direction_input;
priv->chip.direction_output = tz1090_pdc_gpio_direction_output;
priv->chip.get = tz1090_pdc_gpio_get;
diff --git a/drivers/gpio/gpio-tz1090.c b/drivers/gpio/gpio-tz1090.c
index 87bb1b1eee8d..79ef6e1ce568 100644
--- a/drivers/gpio/gpio-tz1090.c
+++ b/drivers/gpio/gpio-tz1090.c
@@ -425,7 +425,7 @@ static int tz1090_gpio_bank_probe(struct tz1090_gpio_bank_info *info)
snprintf(bank->label, sizeof(bank->label), "tz1090-gpio-%u",
info->index);
bank->chip.label = bank->label;
- bank->chip.dev = dev;
+ bank->chip.parent = dev;
bank->chip.direction_input = tz1090_gpio_direction_input;
bank->chip.direction_output = tz1090_gpio_direction_output;
bank->chip.get = tz1090_gpio_get;
diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index 87b950cec6ec..9031e60c815c 100644
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -249,7 +249,7 @@ static int vf610_gpio_probe(struct platform_device *pdev)
gc = &port->gc;
gc->of_node = np;
- gc->dev = dev;
+ gc->parent = dev;
gc->label = "vf610-gpio";
gc->ngpio = VF610_GPIO_PER_PORT;
gc->base = of_alias_get_id(np, "gpio") * VF610_GPIO_PER_PORT;
diff --git a/drivers/gpio/gpio-viperboard.c b/drivers/gpio/gpio-viperboard.c
index e2a11f27807f..26e7edb74f42 100644
--- a/drivers/gpio/gpio-viperboard.c
+++ b/drivers/gpio/gpio-viperboard.c
@@ -173,7 +173,7 @@ static void vprbrd_gpioa_set(struct gpio_chip *chip,
mutex_unlock(&vb->lock);
if (ret != sizeof(struct vprbrd_gpioa_msg))
- dev_err(chip->dev, "usb error setting pin value\n");
+ dev_err(chip->parent, "usb error setting pin value\n");
}
}
@@ -345,7 +345,7 @@ static void vprbrd_gpiob_set(struct gpio_chip *chip,
mutex_unlock(&vb->lock);
if (ret != sizeof(struct vprbrd_gpiob_msg))
- dev_err(chip->dev, "usb error setting pin value\n");
+ dev_err(chip->parent, "usb error setting pin value\n");
}
}
@@ -366,7 +366,7 @@ static int vprbrd_gpiob_direction_input(struct gpio_chip *chip,
mutex_unlock(&vb->lock);
if (ret)
- dev_err(chip->dev, "usb error setting pin to input\n");
+ dev_err(chip->parent, "usb error setting pin to input\n");
return ret;
}
@@ -385,7 +385,7 @@ static int vprbrd_gpiob_direction_output(struct gpio_chip *chip,
ret = vprbrd_gpiob_setdir(vb, offset, 1);
if (ret)
- dev_err(chip->dev, "usb error setting pin to output\n");
+ dev_err(chip->parent, "usb error setting pin to output\n");
mutex_unlock(&vb->lock);
@@ -409,7 +409,7 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
vb_gpio->vb = vb;
/* registering gpio a */
vb_gpio->gpioa.label = "viperboard gpio a";
- vb_gpio->gpioa.dev = &pdev->dev;
+ vb_gpio->gpioa.parent = &pdev->dev;
vb_gpio->gpioa.owner = THIS_MODULE;
vb_gpio->gpioa.base = -1;
vb_gpio->gpioa.ngpio = 16;
@@ -420,13 +420,13 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
vb_gpio->gpioa.direction_output = vprbrd_gpioa_direction_output;
ret = gpiochip_add(&vb_gpio->gpioa);
if (ret < 0) {
- dev_err(vb_gpio->gpioa.dev, "could not add gpio a");
+ dev_err(vb_gpio->gpioa.parent, "could not add gpio a");
goto err_gpioa;
}
/* registering gpio b */
vb_gpio->gpiob.label = "viperboard gpio b";
- vb_gpio->gpiob.dev = &pdev->dev;
+ vb_gpio->gpiob.parent = &pdev->dev;
vb_gpio->gpiob.owner = THIS_MODULE;
vb_gpio->gpiob.base = -1;
vb_gpio->gpiob.ngpio = 16;
@@ -437,7 +437,7 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
vb_gpio->gpiob.direction_output = vprbrd_gpiob_direction_output;
ret = gpiochip_add(&vb_gpio->gpiob);
if (ret < 0) {
- dev_err(vb_gpio->gpiob.dev, "could not add gpio b");
+ dev_err(vb_gpio->gpiob.parent, "could not add gpio b");
goto err_gpiob;
}
diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index c1caa459c02d..1947531b7cf5 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -139,7 +139,7 @@ static void unmask_giuint_low(struct irq_data *d)
static unsigned int startup_giuint(struct irq_data *data)
{
if (gpiochip_lock_as_irq(&vr41xx_gpio_chip, data->hwirq))
- dev_err(vr41xx_gpio_chip.dev,
+ dev_err(vr41xx_gpio_chip.parent,
"unable to lock HW IRQ %lu for IRQ\n",
data->hwirq);
/* Satisfy the .enable semantics by unmasking the line */
@@ -542,7 +542,7 @@ static int giu_probe(struct platform_device *pdev)
if (!giu_base)
return -ENOMEM;
- vr41xx_gpio_chip.dev = &pdev->dev;
+ vr41xx_gpio_chip.parent = &pdev->dev;
ret = gpiochip_add(&vr41xx_gpio_chip);
if (!ret) {
diff --git a/drivers/gpio/gpio-wm831x.c b/drivers/gpio/gpio-wm831x.c
index 58ce75c188b7..2e73e4b52c69 100644
--- a/drivers/gpio/gpio-wm831x.c
+++ b/drivers/gpio/gpio-wm831x.c
@@ -258,7 +258,7 @@ static int wm831x_gpio_probe(struct platform_device *pdev)
wm831x_gpio->wm831x = wm831x;
wm831x_gpio->gpio_chip = template_chip;
wm831x_gpio->gpio_chip.ngpio = wm831x->num_gpio;
- wm831x_gpio->gpio_chip.dev = &pdev->dev;
+ wm831x_gpio->gpio_chip.parent = &pdev->dev;
if (pdata && pdata->gpio_base)
wm831x_gpio->gpio_chip.base = pdata->gpio_base;
else
diff --git a/drivers/gpio/gpio-wm8350.c b/drivers/gpio/gpio-wm8350.c
index 060b89303bb6..1e3d8da61ff3 100644
--- a/drivers/gpio/gpio-wm8350.c
+++ b/drivers/gpio/gpio-wm8350.c
@@ -124,7 +124,7 @@ static int wm8350_gpio_probe(struct platform_device *pdev)
wm8350_gpio->wm8350 = wm8350;
wm8350_gpio->gpio_chip = template_chip;
wm8350_gpio->gpio_chip.ngpio = 13;
- wm8350_gpio->gpio_chip.dev = &pdev->dev;
+ wm8350_gpio->gpio_chip.parent = &pdev->dev;
if (pdata && pdata->gpio_base)
wm8350_gpio->gpio_chip.base = pdata->gpio_base;
else
diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c
index 6f5e42db4b9e..de73c80163c1 100644
--- a/drivers/gpio/gpio-wm8994.c
+++ b/drivers/gpio/gpio-wm8994.c
@@ -260,7 +260,7 @@ static int wm8994_gpio_probe(struct platform_device *pdev)
wm8994_gpio->wm8994 = wm8994;
wm8994_gpio->gpio_chip = template_chip;
wm8994_gpio->gpio_chip.ngpio = WM8994_GPIO_MAX;
- wm8994_gpio->gpio_chip.dev = &pdev->dev;
+ wm8994_gpio->gpio_chip.parent = &pdev->dev;
if (pdata && pdata->gpio_base)
wm8994_gpio->gpio_chip.base = pdata->gpio_base;
else
diff --git a/drivers/gpio/gpio-xgene.c b/drivers/gpio/gpio-xgene.c
index 18a8182d4fec..b8ceb71885f6 100644
--- a/drivers/gpio/gpio-xgene.c
+++ b/drivers/gpio/gpio-xgene.c
@@ -188,7 +188,7 @@ static int xgene_gpio_probe(struct platform_device *pdev)
gpio->chip.ngpio = XGENE_MAX_GPIOS;
spin_lock_init(&gpio->lock);
- gpio->chip.dev = &pdev->dev;
+ gpio->chip.parent = &pdev->dev;
gpio->chip.direction_input = xgene_gpio_dir_in;
gpio->chip.direction_output = xgene_gpio_dir_out;
gpio->chip.get = xgene_gpio_get;
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index d5284dfe01fe..5c2971e1cb08 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -305,7 +305,7 @@ static int xgpio_probe(struct platform_device *pdev)
}
chip->mmchip.gc.ngpio = chip->gpio_width[0] + chip->gpio_width[1];
- chip->mmchip.gc.dev = &pdev->dev;
+ chip->mmchip.gc.parent = &pdev->dev;
chip->mmchip.gc.direction_input = xgpio_dir_in;
chip->mmchip.gc.direction_output = xgpio_dir_out;
chip->mmchip.gc.get = xgpio_get;
diff --git a/drivers/gpio/gpio-xlp.c b/drivers/gpio/gpio-xlp.c
index bc06a2cd2c1d..3f31aac2ba3c 100644
--- a/drivers/gpio/gpio-xlp.c
+++ b/drivers/gpio/gpio-xlp.c
@@ -373,7 +373,7 @@ static int xlp_gpio_probe(struct platform_device *pdev)
gc->owner = THIS_MODULE;
gc->label = dev_name(&pdev->dev);
gc->base = 0;
- gc->dev = &pdev->dev;
+ gc->parent = &pdev->dev;
gc->ngpio = ngpio;
gc->of_node = pdev->dev.of_node;
gc->direction_output = xlp_gpio_dir_output;
diff --git a/drivers/gpio/gpio-zevio.c b/drivers/gpio/gpio-zevio.c
index 6f02d7c4cc57..65b61dcc6268 100644
--- a/drivers/gpio/gpio-zevio.c
+++ b/drivers/gpio/gpio-zevio.c
@@ -185,7 +185,7 @@ static int zevio_gpio_probe(struct platform_device *pdev)
/* Copy our reference */
controller->chip.gc = zevio_gpio_chip;
- controller->chip.gc.dev = &pdev->dev;
+ controller->chip.gc.parent = &pdev->dev;
status = of_mm_gpiochip_add(pdev->dev.of_node, &(controller->chip));
if (status) {
@@ -199,7 +199,7 @@ static int zevio_gpio_probe(struct platform_device *pdev)
for (i = 0; i < controller->chip.gc.ngpio; i += 8)
zevio_gpio_port_set(controller, i, ZEVIO_GPIO_INT_MASK, 0xFF);
- dev_dbg(controller->chip.gc.dev, "ZEVIO GPIO controller set up!\n");
+ dev_dbg(controller->chip.gc.parent, "ZEVIO GPIO controller set up!\n");
return 0;
}
diff --git a/drivers/gpio/gpio-zx.c b/drivers/gpio/gpio-zx.c
index 1dcf7a66dd36..ab2e54fa46cf 100644
--- a/drivers/gpio/gpio-zx.c
+++ b/drivers/gpio/gpio-zx.c
@@ -245,7 +245,7 @@ static int zx_gpio_probe(struct platform_device *pdev)
chip->gc.base = ZX_GPIO_NR * id;
chip->gc.ngpio = ZX_GPIO_NR;
chip->gc.label = dev_name(dev);
- chip->gc.dev = dev;
+ chip->gc.parent = dev;
chip->gc.owner = THIS_MODULE;
ret = gpiochip_add(&chip->gc);
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 8abeacac5885..ba1150744b61 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -592,7 +592,7 @@ static int zynq_gpio_request(struct gpio_chip *chip, unsigned offset)
{
int ret;
- ret = pm_runtime_get_sync(chip->dev);
+ ret = pm_runtime_get_sync(chip->parent);
/*
* If the device is already active pm_runtime_get() will return 1 on
@@ -603,7 +603,7 @@ static int zynq_gpio_request(struct gpio_chip *chip, unsigned offset)
static void zynq_gpio_free(struct gpio_chip *chip, unsigned offset)
{
- pm_runtime_put(chip->dev);
+ pm_runtime_put(chip->parent);
}
static const struct dev_pm_ops zynq_gpio_dev_pm_ops = {
@@ -698,7 +698,7 @@ static int zynq_gpio_probe(struct platform_device *pdev)
chip = &gpio->chip;
chip->label = gpio->p_data->label;
chip->owner = THIS_MODULE;
- chip->dev = &pdev->dev;
+ chip->parent = &pdev->dev;
chip->get = zynq_gpio_get_value;
chip->set = zynq_gpio_set_value;
chip->request = zynq_gpio_request;
@@ -708,23 +708,23 @@ static int zynq_gpio_probe(struct platform_device *pdev)
chip->base = -1;
chip->ngpio = gpio->p_data->ngpio;
- /* Enable GPIO clock */
+ /* Retrieve GPIO clock */
gpio->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(gpio->clk)) {
dev_err(&pdev->dev, "input clock not found.\n");
return PTR_ERR(gpio->clk);
}
- ret = clk_prepare_enable(gpio->clk);
- if (ret) {
- dev_err(&pdev->dev, "Unable to enable clock.\n");
+
+ pm_runtime_enable(&pdev->dev);
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0)
return ret;
- }
/* report a bug if gpio chip registration fails */
ret = gpiochip_add(chip);
if (ret) {
dev_err(&pdev->dev, "Failed to add gpio chip\n");
- goto err_disable_clk;
+ goto err_pm_put;
}
/* disable interrupts for all banks */
@@ -742,15 +742,14 @@ static int zynq_gpio_probe(struct platform_device *pdev)
gpiochip_set_chained_irqchip(chip, &zynq_gpio_edge_irqchip, gpio->irq,
zynq_gpio_irqhandler);
- pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
+ pm_runtime_put(&pdev->dev);
return 0;
err_rm_gpiochip:
gpiochip_remove(chip);
-err_disable_clk:
- clk_disable_unprepare(gpio->clk);
+err_pm_put:
+ pm_runtime_put(&pdev->dev);
return ret;
}
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 16a7b6816744..07e571a1a377 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -51,10 +51,10 @@ struct acpi_gpio_chip {
static int acpi_gpiochip_find(struct gpio_chip *gc, void *data)
{
- if (!gc->dev)
+ if (!gc->parent)
return false;
- return ACPI_HANDLE(gc->dev) == data;
+ return ACPI_HANDLE(gc->parent) == data;
}
#ifdef CONFIG_PINCTRL
@@ -184,7 +184,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
if (agpio->connection_type != ACPI_RESOURCE_GPIO_TYPE_INT)
return AE_OK;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
pin = agpio->pin_table[0];
if (pin <= 255) {
@@ -208,7 +208,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event");
if (IS_ERR(desc)) {
- dev_err(chip->dev, "Failed to request GPIO\n");
+ dev_err(chip->parent, "Failed to request GPIO\n");
return AE_ERROR;
}
@@ -216,13 +216,13 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
ret = gpiochip_lock_as_irq(chip, pin);
if (ret) {
- dev_err(chip->dev, "Failed to lock GPIO as interrupt\n");
+ dev_err(chip->parent, "Failed to lock GPIO as interrupt\n");
goto fail_free_desc;
}
irq = gpiod_to_irq(desc);
if (irq < 0) {
- dev_err(chip->dev, "Failed to translate GPIO to IRQ\n");
+ dev_err(chip->parent, "Failed to translate GPIO to IRQ\n");
goto fail_unlock_irq;
}
@@ -259,7 +259,8 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
ret = request_threaded_irq(event->irq, NULL, handler, irqflags,
"ACPI:Event", event);
if (ret) {
- dev_err(chip->dev, "Failed to setup interrupt handler for %d\n",
+ dev_err(chip->parent,
+ "Failed to setup interrupt handler for %d\n",
event->irq);
goto fail_free_event;
}
@@ -293,10 +294,10 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
acpi_handle handle;
acpi_status status;
- if (!chip->dev || !chip->to_irq)
+ if (!chip->parent || !chip->to_irq)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
@@ -323,10 +324,10 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
acpi_handle handle;
acpi_status status;
- if (!chip->dev || !chip->to_irq)
+ if (!chip->parent || !chip->to_irq)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
@@ -748,7 +749,7 @@ out:
static void acpi_gpiochip_request_regions(struct acpi_gpio_chip *achip)
{
struct gpio_chip *chip = achip->chip;
- acpi_handle handle = ACPI_HANDLE(chip->dev);
+ acpi_handle handle = ACPI_HANDLE(chip->parent);
acpi_status status;
INIT_LIST_HEAD(&achip->conns);
@@ -757,20 +758,22 @@ static void acpi_gpiochip_request_regions(struct acpi_gpio_chip *achip)
acpi_gpio_adr_space_handler,
NULL, achip);
if (ACPI_FAILURE(status))
- dev_err(chip->dev, "Failed to install GPIO OpRegion handler\n");
+ dev_err(chip->parent,
+ "Failed to install GPIO OpRegion handler\n");
}
static void acpi_gpiochip_free_regions(struct acpi_gpio_chip *achip)
{
struct gpio_chip *chip = achip->chip;
- acpi_handle handle = ACPI_HANDLE(chip->dev);
+ acpi_handle handle = ACPI_HANDLE(chip->parent);
struct acpi_gpio_connection *conn, *tmp;
acpi_status status;
status = acpi_remove_address_space_handler(handle, ACPI_ADR_SPACE_GPIO,
acpi_gpio_adr_space_handler);
if (ACPI_FAILURE(status)) {
- dev_err(chip->dev, "Failed to remove GPIO OpRegion handler\n");
+ dev_err(chip->parent,
+ "Failed to remove GPIO OpRegion handler\n");
return;
}
@@ -787,16 +790,16 @@ void acpi_gpiochip_add(struct gpio_chip *chip)
acpi_handle handle;
acpi_status status;
- if (!chip || !chip->dev)
+ if (!chip || !chip->parent)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
acpi_gpio = kzalloc(sizeof(*acpi_gpio), GFP_KERNEL);
if (!acpi_gpio) {
- dev_err(chip->dev,
+ dev_err(chip->parent,
"Failed to allocate memory for ACPI GPIO chip\n");
return;
}
@@ -806,7 +809,7 @@ void acpi_gpiochip_add(struct gpio_chip *chip)
status = acpi_attach_data(handle, acpi_gpio_chip_dh, acpi_gpio);
if (ACPI_FAILURE(status)) {
- dev_err(chip->dev, "Failed to attach ACPI GPIO chip\n");
+ dev_err(chip->parent, "Failed to attach ACPI GPIO chip\n");
kfree(acpi_gpio);
return;
}
@@ -820,16 +823,16 @@ void acpi_gpiochip_remove(struct gpio_chip *chip)
acpi_handle handle;
acpi_status status;
- if (!chip || !chip->dev)
+ if (!chip || !chip->parent)
return;
- handle = ACPI_HANDLE(chip->dev);
+ handle = ACPI_HANDLE(chip->parent);
if (!handle)
return;
status = acpi_get_data(handle, acpi_gpio_chip_dh, (void **)&acpi_gpio);
if (ACPI_FAILURE(status)) {
- dev_warn(chip->dev, "Failed to retrieve ACPI GPIO chip\n");
+ dev_warn(chip->parent, "Failed to retrieve ACPI GPIO chip\n");
return;
}
@@ -922,3 +925,46 @@ int acpi_gpio_count(struct device *dev, const char *con_id)
}
return count;
}
+
+struct acpi_crs_lookup {
+ struct list_head node;
+ struct acpi_device *adev;
+ const char *con_id;
+};
+
+static DEFINE_MUTEX(acpi_crs_lookup_lock);
+static LIST_HEAD(acpi_crs_lookup_list);
+
+bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id)
+{
+ struct acpi_crs_lookup *l, *lookup = NULL;
+
+ /* Never allow fallback if the device has properties */
+ if (adev->data.properties || adev->driver_gpios)
+ return false;
+
+ mutex_lock(&acpi_crs_lookup_lock);
+
+ list_for_each_entry(l, &acpi_crs_lookup_list, node) {
+ if (l->adev == adev) {
+ lookup = l;
+ break;
+ }
+ }
+
+ if (!lookup) {
+ lookup = kmalloc(sizeof(*lookup), GFP_KERNEL);
+ if (lookup) {
+ lookup->adev = adev;
+ lookup->con_id = con_id;
+ list_add_tail(&lookup->node, &acpi_crs_lookup_list);
+ }
+ }
+
+ mutex_unlock(&acpi_crs_lookup_lock);
+
+ return lookup &&
+ ((!lookup->con_id && !con_id) ||
+ (lookup->con_id && con_id &&
+ strcmp(lookup->con_id, con_id) == 0));
+}
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 5fe34a9df3e6..6ed465ea2e12 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -423,8 +423,8 @@ int of_gpiochip_add(struct gpio_chip *chip)
{
int status;
- if ((!chip->of_node) && (chip->dev))
- chip->of_node = chip->dev->of_node;
+ if ((!chip->of_node) && (chip->parent))
+ chip->of_node = chip->parent->of_node;
if (!chip->of_node)
return 0;
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index b57ed8e55ab5..405dfcaadc4c 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -605,7 +605,7 @@ int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
if (chip->names && chip->names[offset])
ioname = chip->names[offset];
- dev = device_create_with_groups(&gpio_class, chip->dev,
+ dev = device_create_with_groups(&gpio_class, chip->parent,
MKDEV(0, 0), data, gpio_groups,
ioname ? ioname : "gpio%u",
desc_to_gpio(desc));
@@ -730,7 +730,8 @@ int gpiochip_sysfs_register(struct gpio_chip *chip)
return 0;
/* use chip->base for the ID; it's already known to be unique */
- dev = device_create_with_groups(&gpio_class, chip->dev, MKDEV(0, 0),
+ dev = device_create_with_groups(&gpio_class, chip->parent,
+ MKDEV(0, 0),
chip, gpiochip_groups,
"gpiochip%d", chip->base);
if (IS_ERR(dev))
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4e4c3083ae56..d72ac1fdcd98 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -182,7 +182,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_direction);
/*
* Add a new chip to the global chips list, keeping the list of chips sorted
- * by base order.
+ * by range(means [base, base + ngpio - 1]) order.
*
* Return -EBUSY if the new chip overlaps with some other chip's integer
* space.
@@ -190,31 +190,48 @@ EXPORT_SYMBOL_GPL(gpiod_get_direction);
static int gpiochip_add_to_list(struct gpio_chip *chip)
{
struct list_head *pos;
- struct gpio_chip *_chip;
- int err = 0;
+ struct gpio_chip *iterator;
+ struct gpio_chip *previous = NULL;
- /* find where to insert our chip */
- list_for_each(pos, &gpio_chips) {
- _chip = list_entry(pos, struct gpio_chip, list);
- /* shall we insert before _chip? */
- if (_chip->base >= chip->base + chip->ngpio)
- break;
+ if (list_empty(&gpio_chips)) {
+ pos = gpio_chips.next;
+ goto found;
}
- /* are we stepping on the chip right before? */
- if (pos != &gpio_chips && pos->prev != &gpio_chips) {
- _chip = list_entry(pos->prev, struct gpio_chip, list);
- if (_chip->base + _chip->ngpio > chip->base) {
- dev_err(chip->dev,
- "GPIO integer space overlap, cannot add chip\n");
- err = -EBUSY;
+ list_for_each(pos, &gpio_chips) {
+ iterator = list_entry(pos, struct gpio_chip, list);
+ if (iterator->base >= chip->base + chip->ngpio) {
+ /*
+ * Iterator is the first GPIO chip so there is no
+ * previous one
+ */
+ if (previous == NULL) {
+ goto found;
+ } else {
+ /*
+ * We found a valid range(means
+ * [base, base + ngpio - 1]) between previous
+ * and iterator chip.
+ */
+ if (previous->base + previous->ngpio
+ <= chip->base)
+ goto found;
+ }
}
+ previous = iterator;
}
- if (!err)
- list_add_tail(&chip->list, pos);
+ /* We are beyond the last chip in the list */
+ if (iterator->base + iterator->ngpio <= chip->base)
+ goto found;
+
+ dev_err(chip->parent,
+ "GPIO integer space overlap, cannot add chip\n");
+ return -EBUSY;
- return err;
+found:
+ list_add_tail(&chip->list, pos);
+ return 0;
}
/**
@@ -252,7 +269,7 @@ static struct gpio_desc *gpio_name_to_desc(const char * const name)
* Takes the names from gc->names and checks if they are all unique. If they
* are, they are assigned to their gpio descriptors.
*
- * Returns -EEXIST if one of the names is already used for a different GPIO.
+ * Warning if one of the names is already used for a different GPIO.
*/
static int gpiochip_set_desc_names(struct gpio_chip *gc)
{
@@ -267,7 +284,7 @@ static int gpiochip_set_desc_names(struct gpio_chip *gc)
gpio = gpio_name_to_desc(gc->names[i]);
if (gpio)
- dev_warn(gc->dev, "Detected name collision for "
+ dev_warn(gc->parent, "Detected name collision for "
"GPIO name '%s'\n",
gc->names[i]);
}
@@ -289,7 +306,7 @@ static int gpiochip_set_desc_names(struct gpio_chip *gc)
* different chip. Otherwise it returns zero as a success code.
*
* When gpiochip_add() is called very early during boot, so that GPIOs
- * can be freely used, the chip->dev device must be registered before
+ * can be freely used, the chip->parent device must be registered before
* the gpio framework's arch_initcall(). Otherwise sysfs initialization
* for GPIOs will fail rudely.
*
@@ -308,6 +325,11 @@ int gpiochip_add(struct gpio_chip *chip)
if (!descs)
return -ENOMEM;
+ if (chip->ngpio == 0) {
+ chip_err(chip, "tried to insert a GPIO chip with zero lines\n");
+ return -EINVAL;
+ }
+
spin_lock_irqsave(&gpio_lock, flags);
if (base < 0) {
@@ -348,8 +370,8 @@ int gpiochip_add(struct gpio_chip *chip)
INIT_LIST_HEAD(&chip->pin_ranges);
#endif
- if (!chip->owner && chip->dev && chip->dev->driver)
- chip->owner = chip->dev->driver->owner;
+ if (!chip->owner && chip->parent && chip->parent->driver)
+ chip->owner = chip->parent->driver->owner;
status = gpiochip_set_desc_names(chip);
if (status)
@@ -424,7 +446,8 @@ void gpiochip_remove(struct gpio_chip *chip)
spin_unlock_irqrestore(&gpio_lock, flags);
if (requested)
- dev_crit(chip->dev, "REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED\n");
+ dev_crit(chip->parent,
+ "REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED\n");
kfree(chip->desc);
chip->desc = NULL;
@@ -683,15 +706,16 @@ int _gpiochip_irqchip_add(struct gpio_chip *gpiochip,
if (!gpiochip || !irqchip)
return -EINVAL;
- if (!gpiochip->dev) {
+ if (!gpiochip->parent) {
pr_err("missing gpiochip .dev parent pointer\n");
return -EINVAL;
}
- of_node = gpiochip->dev->of_node;
+ of_node = gpiochip->parent->of_node;
#ifdef CONFIG_OF_GPIO
/*
* If the gpiochip has an assigned OF node this takes precedence
- * FIXME: get rid of this and use gpiochip->dev->of_node everywhere
+ * FIXME: get rid of this and use gpiochip->parent->of_node
+ * everywhere
*/
if (gpiochip->of_node)
of_node = gpiochip->of_node;
@@ -1874,6 +1898,9 @@ static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
/* Then from plain _CRS GPIOs */
if (IS_ERR(desc)) {
+ if (!acpi_can_fallback_to_crs(adev, con_id))
+ return ERR_PTR(-ENOENT);
+
desc = acpi_get_gpiod_by_index(adev, NULL, idx, &info);
if (IS_ERR(desc))
return desc;
@@ -2509,7 +2536,7 @@ static int gpiolib_seq_show(struct seq_file *s, void *v)
seq_printf(s, "%sGPIOs %d-%d", (char *)s->private,
chip->base, chip->base + chip->ngpio - 1);
- dev = chip->dev;
+ dev = chip->parent;
if (dev)
seq_printf(s, ", %s/%s", dev->bus ? dev->bus->name : "no-bus",
dev_name(dev));
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 98ab08c0aa2d..0a7c02d76909 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -16,7 +16,7 @@
#include <linux/device.h>
enum of_gpio_flags;
-
+enum gpiod_flags;
struct acpi_device;
/**
@@ -47,6 +47,8 @@ struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
struct acpi_gpio_info *info);
int acpi_gpio_count(struct device *dev, const char *con_id);
+
+bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id);
#else
static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
@@ -73,6 +75,12 @@ static inline int acpi_gpio_count(struct device *dev, const char *con_id)
{
return -ENODEV;
}
+
+static inline bool acpi_can_fallback_to_crs(struct acpi_device *adev,
+ const char *con_id)
+{
+ return false;
+}
#endif
struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index 7afc3fcc122c..f47954e8fd2c 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -1104,7 +1104,7 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
dev->gc.base = -1;
dev->gc.ngpio = 8;
dev->gc.can_sleep = 1;
- dev->gc.dev = &hdev->dev;
+ dev->gc.parent = &hdev->dev;
ret = gpiochip_add(&dev->gc);
if (ret < 0) {
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index fec66ad80513..16b5cc2196f2 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -454,7 +454,7 @@ static int ad7879_gpio_add(struct ad7879 *ts,
ts->gc.ngpio = 1;
ts->gc.label = "AD7879-GPIO";
ts->gc.owner = THIS_MODULE;
- ts->gc.dev = ts->dev;
+ ts->gc.parent = ts->dev;
ret = gpiochip_add(&ts->gc);
if (ret)
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index 5a6363d161a2..a975b32ee8c8 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -319,7 +319,7 @@ static int pca9532_destroy_devices(struct pca9532_data *data, int n_devs)
}
#ifdef CONFIG_LEDS_PCA9532_GPIO
- if (data->gpio.dev)
+ if (data->gpio.parent)
gpiochip_remove(&data->gpio);
#endif
@@ -413,13 +413,13 @@ static int pca9532_configure(struct i2c_client *client,
data->gpio.can_sleep = 1;
data->gpio.base = pdata->gpio_base;
data->gpio.ngpio = data->chip_info->num_leds;
- data->gpio.dev = &client->dev;
+ data->gpio.parent = &client->dev;
data->gpio.owner = THIS_MODULE;
err = gpiochip_add(&data->gpio);
if (err) {
/* Use data->gpio.dev as a flag for freeing gpiochip */
- data->gpio.dev = NULL;
+ data->gpio.parent = NULL;
dev_warn(&client->dev, "could not add gpiochip\n");
} else {
dev_info(&client->dev, "gpios %i...%i\n",
diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
index edbecc4ca2da..75529a24a615 100644
--- a/drivers/leds/leds-tca6507.c
+++ b/drivers/leds/leds-tca6507.c
@@ -651,7 +651,7 @@ static int tca6507_probe_gpios(struct i2c_client *client,
tca->gpio.owner = THIS_MODULE;
tca->gpio.direction_output = tca6507_gpio_direction_output;
tca->gpio.set = tca6507_gpio_set_value;
- tca->gpio.dev = &client->dev;
+ tca->gpio.parent = &client->dev;
#ifdef CONFIG_OF_GPIO
tca->gpio.of_node = of_node_get(client->dev.of_node);
#endif
diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c
index def6d21d1445..24a457d9d803 100644
--- a/drivers/media/dvb-frontends/cxd2820r_core.c
+++ b/drivers/media/dvb-frontends/cxd2820r_core.c
@@ -722,7 +722,7 @@ struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
#ifdef CONFIG_GPIOLIB
/* add GPIOs */
priv->gpio_chip.label = KBUILD_MODNAME;
- priv->gpio_chip.dev = &priv->i2c->dev;
+ priv->gpio_chip.parent = &priv->i2c->dev;
priv->gpio_chip.owner = THIS_MODULE;
priv->gpio_chip.direction_output =
cxd2820r_gpio_direction_output;
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 4c826f78acd0..bc90efe01b59 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -259,7 +259,7 @@ static int add_children(struct i2c_client *client)
int i;
/* GPIO-ish stuff */
- dm355evm_msp_gpio.dev = &client->dev;
+ dm355evm_msp_gpio.parent = &client->dev;
status = gpiochip_add(&dm355evm_msp_gpio);
if (status < 0)
return status;
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index 6ccaf90d98fd..d334e7d8a77d 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -321,7 +321,7 @@ static int __init egpio_probe(struct platform_device *pdev)
ei->chip[i].dev = &(pdev->dev);
chip = &(ei->chip[i].chip);
chip->label = "htc-egpio";
- chip->dev = &pdev->dev;
+ chip->parent = &pdev->dev;
chip->owner = THIS_MODULE;
chip->get = egpio_get;
chip->set = egpio_set;
diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index 0c6ff727b2ec..bd6b96d07ab8 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -429,7 +429,7 @@ static int htcpld_register_chip_gpio(
/* Setup the GPIO chips */
gpio_chip = &(chip->chip_out);
gpio_chip->label = "htcpld-out";
- gpio_chip->dev = dev;
+ gpio_chip->parent = dev;
gpio_chip->owner = THIS_MODULE;
gpio_chip->get = htcpld_chip_get;
gpio_chip->set = htcpld_chip_set;
@@ -440,7 +440,7 @@ static int htcpld_register_chip_gpio(
gpio_chip = &(chip->chip_in);
gpio_chip->label = "htcpld-in";
- gpio_chip->dev = dev;
+ gpio_chip->parent = dev;
gpio_chip->owner = THIS_MODULE;
gpio_chip->get = htcpld_chip_get;
gpio_chip->set = NULL;
diff --git a/drivers/mfd/tps65010.c b/drivers/mfd/tps65010.c
index 448f0a182dc4..b96847491277 100644
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@ -638,7 +638,7 @@ static int tps65010_probe(struct i2c_client *client,
tps->outmask = board->outmask;
tps->chip.label = client->name;
- tps->chip.dev = &client->dev;
+ tps->chip.parent = &client->dev;
tps->chip.owner = THIS_MODULE;
tps->chip.set = tps65010_gpio_set;
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index f691d7ecad52..a6ec7cc0fac6 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -570,7 +570,7 @@ static int ucb1x00_probe(struct mcp *mcp)
if (pdata && pdata->gpio_base) {
ucb->gpio.label = dev_name(&ucb->dev);
- ucb->gpio.dev = &ucb->dev;
+ ucb->gpio.parent = &ucb->dev;
ucb->gpio.owner = THIS_MODULE;
ucb->gpio.base = pdata->gpio_base;
ucb->gpio.ngpio = 10;
diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig
index cd11d4d9ad58..1a8c83720551 100644
--- a/drivers/pinctrl/bcm/Kconfig
+++ b/drivers/pinctrl/bcm/Kconfig
@@ -54,3 +54,20 @@ config PINCTRL_CYGNUS_MUX
The Broadcom Cygnus IOMUX driver supports group based IOMUX
configuration, with the exception that certain individual pins
can be overrided to GPIO function
+
+config PINCTRL_NSP_GPIO
+ bool "Broadcom NSP GPIO (with PINCONF) driver"
+ depends on OF_GPIO && (ARCH_BCM_NSP || COMPILE_TEST)
+ select GPIOLIB_IRQCHIP
+ select PINCONF
+ select GENERIC_PINCONF
+ default ARCH_BCM_NSP
+ help
+ Say yes here to enable the Broadcom NSP GPIO driver.
+
+ The Broadcom Northstar Plus SoC ChipcommonA GPIO controller is
+ supported by this driver.
+
+ The ChipcommonA GPIO controller support basic PINCONF functions such
+ as bias pull up, pull down, and drive strength configurations, when
+ these pins are muxed to GPIO.
diff --git a/drivers/pinctrl/bcm/Makefile b/drivers/pinctrl/bcm/Makefile
index 2b2f70ee804c..2fb1ed85b737 100644
--- a/drivers/pinctrl/bcm/Makefile
+++ b/drivers/pinctrl/bcm/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o
obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
obj-$(CONFIG_PINCTRL_CYGNUS_GPIO) += pinctrl-cygnus-gpio.o
obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o
+obj-$(CONFIG_PINCTRL_NSP_GPIO) += pinctrl-nsp-gpio.o
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 2e6ca69635aa..595f87028b19 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -337,14 +337,14 @@ static int bcm2835_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int bcm2835_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+ struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->parent);
return bcm2835_gpio_get_bit(pc, GPLEV0, offset);
}
static void bcm2835_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
- struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+ struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->parent);
bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset);
}
@@ -358,7 +358,7 @@ static int bcm2835_gpio_direction_output(struct gpio_chip *chip,
static int bcm2835_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
- struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+ struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->parent);
return irq_linear_revmap(pc->irq_domain, offset);
}
@@ -964,7 +964,7 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
return PTR_ERR(pc->base);
pc->gpio_chip = bcm2835_gpio_chip;
- pc->gpio_chip.dev = dev;
+ pc->gpio_chip.parent = dev;
pc->gpio_chip.of_node = np;
pc->irq_domain = irq_domain_add_linear(np, BCM2835_NUM_GPIOS,
diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
index 12a48f498b75..bd212b269094 100644
--- a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
@@ -720,7 +720,7 @@ static int cygnus_gpio_probe(struct platform_device *pdev)
gc->ngpio = ngpios;
chip->num_banks = (ngpios + NGPIOS_PER_BANK - 1) / NGPIOS_PER_BANK;
gc->label = dev_name(dev);
- gc->dev = dev;
+ gc->parent = dev;
gc->of_node = dev->of_node;
gc->request = cygnus_gpio_request;
gc->free = cygnus_gpio_free;
diff --git a/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
new file mode 100644
index 000000000000..bb7891e786e3
--- /dev/null
+++ b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
@@ -0,0 +1,749 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * This file contains the Broadcom Northstar Plus (NSP) GPIO driver that
+ * supports the chipCommonA GPIO controller. Basic PINCONF such as bias,
+ * pull up/down, slew and drive strength are also supported in this driver.
+ *
+ * Pins from the chipCommonA GPIO can be individually muxed to GPIO function,
+ * through the interaction with the NSP IOMUX controller.
+ */
+
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/slab.h>
+
+#include "../pinctrl-utils.h"
+
+#define NSP_CHIP_A_INT_STATUS 0x00
+#define NSP_CHIP_A_INT_MASK 0x04
+#define NSP_GPIO_DATA_IN 0x40
+#define NSP_GPIO_DATA_OUT 0x44
+#define NSP_GPIO_OUT_EN 0x48
+#define NSP_GPIO_INT_POLARITY 0x50
+#define NSP_GPIO_INT_MASK 0x54
+#define NSP_GPIO_EVENT 0x58
+#define NSP_GPIO_EVENT_INT_MASK 0x5c
+#define NSP_GPIO_EVENT_INT_POLARITY 0x64
+#define NSP_CHIP_A_GPIO_INT_BIT 0x01
+
+/* I/O parameters offset for chipcommon A GPIO */
+#define NSP_GPIO_DRV_CTRL 0x00
+#define NSP_GPIO_HYSTERESIS_EN 0x10
+#define NSP_GPIO_SLEW_RATE_EN 0x14
+#define NSP_PULL_UP_EN 0x18
+#define NSP_PULL_DOWN_EN 0x1c
+#define GPIO_DRV_STRENGTH_BITS 0x03
+
+/*
+ * nsp GPIO core
+ *
+ * @dev: pointer to device
+ * @base: I/O register base for nsp GPIO controller
+ * @io_ctrl: I/O register base for PINCONF support outside the GPIO block
+ * @gc: GPIO chip
+ * @pctl: pointer to pinctrl_dev
+ * @pctldesc: pinctrl descriptor
+ * @irq_domain: pointer to irq domain
+ * @lock: lock to protect access to I/O registers
+ */
+struct nsp_gpio {
+ struct device *dev;
+ void __iomem *base;
+ void __iomem *io_ctrl;
+ struct gpio_chip gc;
+ struct pinctrl_dev *pctl;
+ struct pinctrl_desc pctldesc;
+ struct irq_domain *irq_domain;
+ spinlock_t lock;
+};
+
+enum base_type {
+ REG,
+ IO_CTRL
+};
+
+static inline struct nsp_gpio *to_nsp_gpio(struct gpio_chip *gc)
+{
+ return container_of(gc, struct nsp_gpio, gc);
+}
+
+/*
+ * Mapping from PINCONF pins to GPIO pins is 1-to-1
+ */
+static inline unsigned nsp_pin_to_gpio(unsigned pin)
+{
+ return pin;
+}
+
+/*
+ * nsp_set_bit - set or clear one bit (corresponding to the GPIO pin) in a
+ * nsp GPIO register
+ *
+ * @nsp_gpio: nsp GPIO device
+ * @base_type: reg base to modify
+ * @reg: register offset
+ * @gpio: GPIO pin
+ * @set: set or clear
+ */
+static inline void nsp_set_bit(struct nsp_gpio *chip, enum base_type address,
+ unsigned int reg, unsigned gpio, bool set)
+{
+ u32 val;
+ void __iomem *base_address;
+
+ if (address == IO_CTRL)
+ base_address = chip->io_ctrl;
+ else
+ base_address = chip->base;
+
+ val = readl(base_address + reg);
+ if (set)
+ val |= BIT(gpio);
+ else
+ val &= ~BIT(gpio);
+
+ writel(val, base_address + reg);
+}
+
+/*
+ * nsp_get_bit - get one bit (corresponding to the GPIO pin) in a
+ * nsp GPIO register
+ */
+static inline bool nsp_get_bit(struct nsp_gpio *chip, enum base_type address,
+ unsigned int reg, unsigned gpio)
+{
+ if (address == IO_CTRL)
+ return !!(readl(chip->io_ctrl + reg) & BIT(gpio));
+ else
+ return !!(readl(chip->base + reg) & BIT(gpio));
+}
+
+static irqreturn_t nsp_gpio_irq_handler(int irq, void *data)
+{
+ struct nsp_gpio *chip = (struct nsp_gpio *)data;
+ struct gpio_chip gc = chip->gc;
+ int bit;
+ unsigned long int_bits = 0;
+ u32 int_status;
+
+ /* go through the entire GPIOs and handle all interrupts */
+ int_status = readl(chip->base + NSP_CHIP_A_INT_STATUS);
+ if (int_status & NSP_CHIP_A_GPIO_INT_BIT) {
+ unsigned int event, level;
+
+ /* Get level and edge interrupts */
+ event = readl(chip->base + NSP_GPIO_EVENT_INT_MASK) &
+ readl(chip->base + NSP_GPIO_EVENT);
+ level = readl(chip->base + NSP_GPIO_DATA_IN) ^
+ readl(chip->base + NSP_GPIO_INT_POLARITY);
+ level &= readl(chip->base + NSP_GPIO_INT_MASK);
+ int_bits = level | event;
+
+ for_each_set_bit(bit, &int_bits, gc.ngpio) {
+ /*
+ * Clear the interrupt before invoking the
+ * handler, so we do not leave any window
+ */
+ writel(BIT(bit), chip->base + NSP_GPIO_EVENT);
+ generic_handle_irq(
+ irq_linear_revmap(chip->irq_domain, bit));
+ }
+ }
+
+ return int_bits ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static void nsp_gpio_irq_ack(struct irq_data *d)
+{
+ struct nsp_gpio *chip = irq_data_get_irq_chip_data(d);
+ unsigned gpio = d->hwirq;
+ u32 val = BIT(gpio);
+ u32 trigger_type;
+
+ trigger_type = irq_get_trigger_type(d->irq);
+ if (trigger_type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
+ nsp_set_bit(chip, REG, NSP_GPIO_EVENT, gpio, val);
+}
+
+/*
+ * nsp_gpio_irq_set_mask - mask/unmask a GPIO interrupt
+ *
+ * @d: IRQ chip data
+ * @unmask: mask/unmask GPIO interrupt
+ */
+static void nsp_gpio_irq_set_mask(struct irq_data *d, bool unmask)
+{
+ struct nsp_gpio *chip = irq_data_get_irq_chip_data(d);
+ unsigned gpio = d->hwirq;
+ u32 trigger_type;
+
+ trigger_type = irq_get_trigger_type(d->irq);
+ if (trigger_type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
+ nsp_set_bit(chip, REG, NSP_GPIO_EVENT_INT_MASK, gpio, unmask);
+ else
+ nsp_set_bit(chip, REG, NSP_GPIO_INT_MASK, gpio, unmask);
+}
+
+static void nsp_gpio_irq_mask(struct irq_data *d)
+{
+ struct nsp_gpio *chip = irq_data_get_irq_chip_data(d);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ nsp_gpio_irq_set_mask(d, false);
+ spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+static void nsp_gpio_irq_unmask(struct irq_data *d)
+{
+ struct nsp_gpio *chip = irq_data_get_irq_chip_data(d);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ nsp_gpio_irq_set_mask(d, true);
+ spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+static int nsp_gpio_irq_set_type(struct irq_data *d, unsigned int type)
+{
+ struct nsp_gpio *chip = irq_data_get_irq_chip_data(d);
+ unsigned gpio = d->hwirq;
+ bool level_low;
+ bool falling;
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ falling = nsp_get_bit(chip, REG, NSP_GPIO_EVENT_INT_POLARITY, gpio);
+ level_low = nsp_get_bit(chip, REG, NSP_GPIO_INT_POLARITY, gpio);
+
+ switch (type & IRQ_TYPE_SENSE_MASK) {
+ case IRQ_TYPE_EDGE_RISING:
+ falling = false;
+ break;
+
+ case IRQ_TYPE_EDGE_FALLING:
+ falling = true;
+ break;
+
+ case IRQ_TYPE_LEVEL_HIGH:
+ level_low = false;
+ break;
+
+ case IRQ_TYPE_LEVEL_LOW:
+ level_low = true;
+ break;
+
+ default:
+ dev_err(chip->dev, "invalid GPIO IRQ type 0x%x\n",
+ type);
+ spin_unlock_irqrestore(&chip->lock, flags);
+ return -EINVAL;
+ }
+
+ nsp_set_bit(chip, REG, NSP_GPIO_EVENT_INT_POLARITY, gpio, falling);
+ nsp_set_bit(chip, REG, NSP_GPIO_INT_POLARITY, gpio, level_low);
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ dev_dbg(chip->dev, "gpio:%u level_low:%s falling:%s\n", gpio,
+ level_low ? "true" : "false", falling ? "true" : "false");
+ return 0;
+}
+
+static struct irq_chip nsp_gpio_irq_chip = {
+ .name = "gpio-a",
+ .irq_enable = nsp_gpio_irq_unmask,
+ .irq_disable = nsp_gpio_irq_mask,
+ .irq_ack = nsp_gpio_irq_ack,
+ .irq_mask = nsp_gpio_irq_mask,
+ .irq_unmask = nsp_gpio_irq_unmask,
+ .irq_set_type = nsp_gpio_irq_set_type,
+};
+
+/*
+ * Request the nsp IOMUX pinmux controller to mux individual pins to GPIO
+ */
+static int nsp_gpio_request(struct gpio_chip *gc, unsigned offset)
+{
+ unsigned gpio = gc->base + offset;
+
+ return pinctrl_request_gpio(gpio);
+}
+
+static void nsp_gpio_free(struct gpio_chip *gc, unsigned offset)
+{
+ unsigned gpio = gc->base + offset;
+
+ pinctrl_free_gpio(gpio);
+}
+
+static int nsp_gpio_direction_input(struct gpio_chip *gc, unsigned gpio)
+{
+ struct nsp_gpio *chip = to_nsp_gpio(gc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ nsp_set_bit(chip, REG, NSP_GPIO_OUT_EN, gpio, false);
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ dev_dbg(chip->dev, "gpio:%u set input\n", gpio);
+ return 0;
+}
+
+static int nsp_gpio_direction_output(struct gpio_chip *gc, unsigned gpio,
+ int val)
+{
+ struct nsp_gpio *chip = to_nsp_gpio(gc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ nsp_set_bit(chip, REG, NSP_GPIO_OUT_EN, gpio, true);
+ nsp_set_bit(chip, REG, NSP_GPIO_DATA_OUT, gpio, !!(val));
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ dev_dbg(chip->dev, "gpio:%u set output, value:%d\n", gpio, val);
+ return 0;
+}
+
+static void nsp_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
+{
+ struct nsp_gpio *chip = to_nsp_gpio(gc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ nsp_set_bit(chip, REG, NSP_GPIO_DATA_OUT, gpio, !!(val));
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ dev_dbg(chip->dev, "gpio:%u set, value:%d\n", gpio, val);
+}
+
+static int nsp_gpio_get(struct gpio_chip *gc, unsigned gpio)
+{
+ struct nsp_gpio *chip = to_nsp_gpio(gc);
+
+ return !!(readl(chip->base + NSP_GPIO_DATA_IN) & BIT(gpio));
+}
+
+static int nsp_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct nsp_gpio *chip = to_nsp_gpio(gc);
+
+ return irq_linear_revmap(chip->irq_domain, offset);
+}
+
+static int nsp_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ return 1;
+}
+
+/*
+ * Only one group: "gpio_grp", since this local pinctrl device only performs
+ * GPIO specific PINCONF configurations
+ */
+static const char *nsp_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ return "gpio_grp";
+}
+
+static const struct pinctrl_ops nsp_pctrl_ops = {
+ .get_groups_count = nsp_get_groups_count,
+ .get_group_name = nsp_get_group_name,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
+ .dt_free_map = pinctrl_utils_dt_free_map,
+};
+
+static int nsp_gpio_set_slew(struct nsp_gpio *chip, unsigned gpio, u16 slew)
+{
+ if (slew)
+ nsp_set_bit(chip, IO_CTRL, NSP_GPIO_SLEW_RATE_EN, gpio, true);
+ else
+ nsp_set_bit(chip, IO_CTRL, NSP_GPIO_SLEW_RATE_EN, gpio, false);
+
+ return 0;
+}
+
+static int nsp_gpio_set_pull(struct nsp_gpio *chip, unsigned gpio,
+ bool pull_up, bool pull_down)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ nsp_set_bit(chip, IO_CTRL, NSP_PULL_DOWN_EN, gpio, pull_down);
+ nsp_set_bit(chip, IO_CTRL, NSP_PULL_UP_EN, gpio, pull_up);
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ dev_dbg(chip->dev, "gpio:%u set pullup:%d pulldown: %d\n",
+ gpio, pull_up, pull_down);
+ return 0;
+}
+
+static void nsp_gpio_get_pull(struct nsp_gpio *chip, unsigned gpio,
+ bool *pull_up, bool *pull_down)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ *pull_up = nsp_get_bit(chip, IO_CTRL, NSP_PULL_UP_EN, gpio);
+ *pull_down = nsp_get_bit(chip, IO_CTRL, NSP_PULL_DOWN_EN, gpio);
+ spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+static int nsp_gpio_set_strength(struct nsp_gpio *chip, unsigned gpio,
+ u16 strength)
+{
+ u32 offset, shift, i;
+ u32 val;
+ unsigned long flags;
+
+ /* make sure drive strength is supported */
+ if (strength < 2 || strength > 16 || (strength % 2))
+ return -ENOTSUPP;
+
+ shift = gpio;
+ offset = NSP_GPIO_DRV_CTRL;
+ dev_dbg(chip->dev, "gpio:%u set drive strength:%d mA\n", gpio,
+ strength);
+ spin_lock_irqsave(&chip->lock, flags);
+ strength = (strength / 2) - 1;
+ for (i = GPIO_DRV_STRENGTH_BITS; i > 0; i--) {
+ val = readl(chip->io_ctrl + offset);
+ val &= ~BIT(shift);
+ val |= ((strength >> (i-1)) & 0x1) << shift;
+ writel(val, chip->io_ctrl + offset);
+ offset += 4;
+ }
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+static int nsp_gpio_get_strength(struct nsp_gpio *chip, unsigned gpio,
+ u16 *strength)
+{
+ unsigned int i, offset, shift;
+ u32 val;
+ unsigned long flags;
+
+ offset = NSP_GPIO_DRV_CTRL;
+ shift = gpio;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ *strength = 0;
+ for (i = (GPIO_DRV_STRENGTH_BITS - 1); i >= 0; i--) {
+ val = readl(chip->io_ctrl + offset) & BIT(shift);
+ val >>= shift;
+ *strength += (val << i);
+ offset += 4;
+ }
+
+ /* convert to mA */
+ *strength = (*strength + 1) * 2;
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+int nsp_pin_config_group_get(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned long *config)
+{
+ return 0;
+}
+
+int nsp_pin_config_group_set(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned long *configs, unsigned num_configs)
+{
+ return 0;
+}
+
+static int nsp_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *config)
+{
+ struct nsp_gpio *chip = pinctrl_dev_get_drvdata(pctldev);
+ enum pin_config_param param = pinconf_to_config_param(*config);
+ unsigned int gpio;
+ u16 arg = 0;
+ bool pull_up, pull_down;
+ int ret;
+
+ gpio = nsp_pin_to_gpio(pin);
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ nsp_gpio_get_pull(chip, gpio, &pull_up, &pull_down);
+ if ((pull_up == false) && (pull_down == false))
+ return 0;
+ else
+ return -EINVAL;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ nsp_gpio_get_pull(chip, gpio, &pull_up, &pull_down);
+ if (pull_up)
+ return 0;
+ else
+ return -EINVAL;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ nsp_gpio_get_pull(chip, gpio, &pull_up, &pull_down);
+ if (pull_down)
+ return 0;
+ else
+ return -EINVAL;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ ret = nsp_gpio_get_strength(chip, gpio, &arg);
+ if (ret)
+ return ret;
+ *config = pinconf_to_config_packed(param, arg);
+ return 0;
+
+ default:
+ return -ENOTSUPP;
+ }
+}
+
+static int nsp_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *configs, unsigned num_configs)
+{
+ struct nsp_gpio *chip = pinctrl_dev_get_drvdata(pctldev);
+ enum pin_config_param param;
+ u16 arg;
+ unsigned int i, gpio;
+ int ret = -ENOTSUPP;
+
+ gpio = nsp_pin_to_gpio(pin);
+ for (i = 0; i < num_configs; i++) {
+ param = pinconf_to_config_param(configs[i]);
+ arg = pinconf_to_config_argument(configs[i]);
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ ret = nsp_gpio_set_pull(chip, gpio, false, false);
+ if (ret < 0)
+ goto out;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ ret = nsp_gpio_set_pull(chip, gpio, true, false);
+ if (ret < 0)
+ goto out;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ret = nsp_gpio_set_pull(chip, gpio, false, true);
+ if (ret < 0)
+ goto out;
+ break;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ ret = nsp_gpio_set_strength(chip, gpio, arg);
+ if (ret < 0)
+ goto out;
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ ret = nsp_gpio_set_slew(chip, gpio, arg);
+ if (ret < 0)
+ goto out;
+ break;
+
+ default:
+ dev_err(chip->dev, "invalid configuration\n");
+ return -ENOTSUPP;
+ }
+ }
+
+out:
+ return ret;
+}
+
+static const struct pinconf_ops nsp_pconf_ops = {
+ .is_generic = true,
+ .pin_config_get = nsp_pin_config_get,
+ .pin_config_set = nsp_pin_config_set,
+ .pin_config_group_get = nsp_pin_config_group_get,
+ .pin_config_group_set = nsp_pin_config_group_set,
+};
+
+/*
+ * NSP GPIO controller supports some PINCONF related configurations such as
+ * pull up, pull down, slew and drive strength, when the pin is configured
+ * to GPIO.
+ *
+ * Here a local pinctrl device is created with simple 1-to-1 pin mapping to the
+ * local GPIO pins
+ */
+static int nsp_gpio_register_pinconf(struct nsp_gpio *chip)
+{
+ struct pinctrl_desc *pctldesc = &chip->pctldesc;
+ struct pinctrl_pin_desc *pins;
+ struct gpio_chip *gc = &chip->gc;
+ int i;
+
+ pins = devm_kcalloc(chip->dev, gc->ngpio, sizeof(*pins), GFP_KERNEL);
+ if (!pins)
+ return -ENOMEM;
+ for (i = 0; i < gc->ngpio; i++) {
+ pins[i].number = i;
+ pins[i].name = devm_kasprintf(chip->dev, GFP_KERNEL,
+ "gpio-%d", i);
+ if (!pins[i].name)
+ return -ENOMEM;
+ }
+ pctldesc->name = dev_name(chip->dev);
+ pctldesc->pctlops = &nsp_pctrl_ops;
+ pctldesc->pins = pins;
+ pctldesc->npins = gc->ngpio;
+ pctldesc->confops = &nsp_pconf_ops;
+
+ chip->pctl = pinctrl_register(pctldesc, chip->dev, chip);
+ if (IS_ERR(chip->pctl)) {
+ dev_err(chip->dev, "unable to register pinctrl device\n");
+ return PTR_ERR(chip->pctl);
+ }
+
+ return 0;
+}
+
+static const struct of_device_id nsp_gpio_of_match[] = {
+ {.compatible = "brcm,nsp-gpio-a",},
+ {}
+};
+
+static int nsp_gpio_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ struct nsp_gpio *chip;
+ struct gpio_chip *gc;
+ u32 val, count;
+ int irq, ret;
+
+ if (of_property_read_u32(pdev->dev.of_node, "ngpios", &val)) {
+ dev_err(&pdev->dev, "Missing ngpios OF property\n");
+ return -ENODEV;
+ }
+
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->dev = dev;
+ platform_set_drvdata(pdev, chip);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ chip->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(chip->base)) {
+ dev_err(dev, "unable to map I/O memory\n");
+ return PTR_ERR(chip->base);
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ chip->io_ctrl = devm_ioremap_resource(dev, res);
+ if (IS_ERR(chip->io_ctrl)) {
+ dev_err(dev, "unable to map I/O memory\n");
+ return PTR_ERR(chip->io_ctrl);
+ }
+
+ spin_lock_init(&chip->lock);
+ gc = &chip->gc;
+ gc->base = -1;
+ gc->can_sleep = false;
+ gc->ngpio = val;
+ gc->label = dev_name(dev);
+ gc->parent = dev;
+ gc->of_node = dev->of_node;
+ gc->request = nsp_gpio_request;
+ gc->free = nsp_gpio_free;
+ gc->direction_input = nsp_gpio_direction_input;
+ gc->direction_output = nsp_gpio_direction_output;
+ gc->set = nsp_gpio_set;
+ gc->get = nsp_gpio_get;
+ gc->to_irq = nsp_gpio_to_irq;
+
+ /* optional GPIO interrupt support */
+ irq = platform_get_irq(pdev, 0);
+ if (irq > 0) {
+ /* Create irq domain so that each pin can be assigned an IRQ.*/
+ chip->irq_domain = irq_domain_add_linear(gc->of_node, gc->ngpio,
+ &irq_domain_simple_ops,
+ chip);
+ if (!chip->irq_domain) {
+ dev_err(&pdev->dev, "Couldn't allocate IRQ domain\n");
+ return -ENXIO;
+ }
+
+ /* Map each gpio to an IRQ and set the handler for gpiolib. */
+ for (count = 0; count < gc->ngpio; count++) {
+ int irq = irq_create_mapping(chip->irq_domain, count);
+
+ irq_set_chip_and_handler(irq, &nsp_gpio_irq_chip,
+ handle_simple_irq);
+ set_irq_flags(irq, IRQF_VALID);
+ irq_set_chip_data(irq, chip);
+ }
+
+ /* Install ISR for this GPIO controller. */
+ ret = devm_request_irq(&pdev->dev, irq, nsp_gpio_irq_handler,
+ IRQF_SHARED, "gpio-a", chip);
+ if (ret) {
+ dev_err(&pdev->dev, "Unable to request IRQ%d: %d\n",
+ irq, ret);
+ goto err_rm_gpiochip;
+ }
+
+ val = readl(chip->base + NSP_CHIP_A_INT_MASK);
+ val = val | NSP_CHIP_A_GPIO_INT_BIT;
+ writel(val, (chip->base + NSP_CHIP_A_INT_MASK));
+ }
+
+ ret = gpiochip_add(gc);
+ if (ret < 0) {
+ dev_err(dev, "unable to add GPIO chip\n");
+ return ret;
+ }
+
+ ret = nsp_gpio_register_pinconf(chip);
+ if (ret) {
+ dev_err(dev, "unable to register pinconf\n");
+ goto err_rm_gpiochip;
+ }
+
+ return 0;
+
+err_rm_gpiochip:
+ gpiochip_remove(gc);
+
+ return ret;
+}
+
+static struct platform_driver nsp_gpio_driver = {
+ .driver = {
+ .name = "nsp-gpio-a",
+ .of_match_table = nsp_gpio_of_match,
+ },
+ .probe = nsp_gpio_probe,
+};
+
+static int __init nsp_gpio_init(void)
+{
+ return platform_driver_probe(&nsp_gpio_driver, nsp_gpio_probe);
+}
+arch_initcall_sync(nsp_gpio_init);
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index b59ce75b1947..bb92f8ae6b33 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -598,7 +598,7 @@ static int byt_gpio_probe(struct platform_device *pdev)
gc->dbg_show = byt_gpio_dbg_show;
gc->base = -1;
gc->can_sleep = false;
- gc->dev = dev;
+ gc->parent = dev;
#ifdef CONFIG_PM_SLEEP
vg->saved_context = devm_kcalloc(&pdev->dev, gc->ngpio,
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 84936bae6e5e..dac8ec46aeb4 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1436,7 +1436,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
chip->ngpio = pctrl->community->ngpios;
chip->label = dev_name(pctrl->dev);
- chip->dev = pctrl->dev;
+ chip->parent = pctrl->dev;
chip->base = -1;
ret = gpiochip_add(chip);
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 26f6b6ffea5b..c6dcde7132de 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -872,7 +872,7 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
pctrl->chip.ngpio = pctrl->soc->npins;
pctrl->chip.label = dev_name(pctrl->dev);
- pctrl->chip.dev = pctrl->dev;
+ pctrl->chip.parent = pctrl->dev;
pctrl->chip.base = -1;
ret = gpiochip_add(&pctrl->chip);
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 5c717275a7fa..9ddba444e127 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -95,7 +95,7 @@ static void mtk_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
unsigned int reg_addr;
unsigned int bit;
- struct mtk_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
reg_addr = mtk_get_port(pctl, offset) + pctl->devdata->dout_offset;
bit = BIT(offset & 0xf);
@@ -742,7 +742,7 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
unsigned int bit;
unsigned int read_val = 0;
- struct mtk_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
reg_addr = mtk_get_port(pctl, offset) + pctl->devdata->dir_offset;
bit = BIT(offset & 0xf);
@@ -755,7 +755,7 @@ static int mtk_gpio_get(struct gpio_chip *chip, unsigned offset)
unsigned int reg_addr;
unsigned int bit;
unsigned int read_val = 0;
- struct mtk_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
reg_addr = mtk_get_port(pctl, offset) +
pctl->devdata->din_offset;
@@ -768,7 +768,7 @@ static int mtk_gpio_get(struct gpio_chip *chip, unsigned offset)
static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
const struct mtk_desc_pin *pin;
- struct mtk_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
int irq;
pin = pctl->devdata->pins + offset;
@@ -936,7 +936,7 @@ static void mtk_eint_unmask(struct irq_data *d)
static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
unsigned debounce)
{
- struct mtk_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
int eint_num, virq, eint_offset;
unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, dbnc;
static const unsigned int dbnc_arr[] = {0 , 1, 16, 32, 64, 128, 256};
@@ -1345,7 +1345,7 @@ int mtk_pctrl_init(struct platform_device *pdev,
*pctl->chip = mtk_gpio_chip;
pctl->chip->ngpio = pctl->devdata->npins;
pctl->chip->label = dev_name(&pdev->dev);
- pctl->chip->dev = &pdev->dev;
+ pctl->chip->parent = &pdev->dev;
pctl->chip->base = -1;
ret = gpiochip_add(pctl->chip);
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index 84943e4cff09..4b5f6829144d 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -562,7 +562,7 @@ static int meson_gpiolib_register(struct meson_pinctrl *pc)
domain = &pc->domains[i];
domain->chip.label = domain->data->name;
- domain->chip.dev = pc->dev;
+ domain->chip.parent = pc->dev;
domain->chip.request = meson_gpio_request;
domain->chip.free = meson_gpio_free;
domain->chip.direction_input = meson_gpio_direction_input;
diff --git a/drivers/pinctrl/nomadik/pinctrl-abx500.c b/drivers/pinctrl/nomadik/pinctrl-abx500.c
index b59fbb4b1fb1..434d5de0177b 100644
--- a/drivers/pinctrl/nomadik/pinctrl-abx500.c
+++ b/drivers/pinctrl/nomadik/pinctrl-abx500.c
@@ -986,7 +986,7 @@ static int abx500_pin_config_set(struct pinctrl_dev *pctldev,
param = pinconf_to_config_param(configs[i]);
argument = pinconf_to_config_argument(configs[i]);
- dev_dbg(chip->dev, "pin %d [%#lx]: %s %s\n",
+ dev_dbg(chip->parent, "pin %d [%#lx]: %s %s\n",
pin, configs[i],
(param == PIN_CONFIG_OUTPUT) ? "output " : "input",
(param == PIN_CONFIG_OUTPUT) ?
@@ -1077,7 +1077,8 @@ static int abx500_pin_config_set(struct pinctrl_dev *pctldev,
break;
default:
- dev_err(chip->dev, "illegal configuration requested\n");
+ dev_err(chip->parent,
+ "illegal configuration requested\n");
}
} /* for each config */
out:
@@ -1172,7 +1173,7 @@ static int abx500_gpio_probe(struct platform_device *pdev)
pct->dev = &pdev->dev;
pct->parent = dev_get_drvdata(pdev->dev.parent);
pct->chip = abx500gpio_chip;
- pct->chip.dev = &pdev->dev;
+ pct->chip.parent = &pdev->dev;
pct->chip.base = -1; /* Dynamic allocation */
match = of_match_device(abx500_gpio_match, &pdev->dev);
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index eebfae0c9b7c..cb4a327425a0 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -438,7 +438,7 @@ nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset)
nmk_chip->addr + NMK_GPIO_FIMSC);
}
- dev_dbg(nmk_chip->chip.dev, "%d: clearing interrupt mask\n", gpio);
+ dev_dbg(nmk_chip->chip.parent, "%d: clearing interrupt mask\n", gpio);
}
static void nmk_write_masked(void __iomem *reg, u32 mask, u32 value)
@@ -1188,7 +1188,7 @@ static struct nmk_gpio_chip *nmk_gpio_populate_chip(struct device_node *np,
chip->base = id * NMK_GPIO_PER_CHIP;
chip->ngpio = NMK_GPIO_PER_CHIP;
chip->label = dev_name(&gpio_pdev->dev);
- chip->dev = &gpio_pdev->dev;
+ chip->parent = &gpio_pdev->dev;
res = platform_get_resource(gpio_pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
@@ -1890,7 +1890,7 @@ static int nmk_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
if (slpm_val)
val = slpm_val - 1;
- dev_dbg(nmk_chip->chip.dev,
+ dev_dbg(nmk_chip->chip.parent,
"pin %d: sleep pull %s, dir %s, val %s\n",
pin,
slpm_pull ? pullnames[pull] : "same",
@@ -1899,7 +1899,7 @@ static int nmk_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
slpm_val ? (val ? "high" : "low") : "same");
}
- dev_dbg(nmk_chip->chip.dev,
+ dev_dbg(nmk_chip->chip.parent,
"pin %d [%#lx]: pull %s, slpm %s (%s%s), lowemi %s\n",
pin, cfg, pullnames[pull], slpmnames[slpm],
output ? "output " : "input",
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 3318f1d6193c..a74b2b0a75e0 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -778,7 +778,7 @@ static int amd_gpio_probe(struct platform_device *pdev)
gpio_dev->gc.base = 0;
gpio_dev->gc.label = pdev->name;
gpio_dev->gc.owner = THIS_MODULE;
- gpio_dev->gc.dev = &pdev->dev;
+ gpio_dev->gc.parent = &pdev->dev;
gpio_dev->gc.ngpio = TOTAL_NUMBER_OF_PINS;
#if defined(CONFIG_OF_GPIO)
gpio_dev->gc.of_node = pdev->dev.of_node;
diff --git a/drivers/pinctrl/pinctrl-as3722.c b/drivers/pinctrl/pinctrl-as3722.c
index 56af28b95a44..89479bea6262 100644
--- a/drivers/pinctrl/pinctrl-as3722.c
+++ b/drivers/pinctrl/pinctrl-as3722.c
@@ -582,7 +582,7 @@ static int as3722_pinctrl_probe(struct platform_device *pdev)
}
as_pci->gpio_chip = as3722_gpio_chip;
- as_pci->gpio_chip.dev = &pdev->dev;
+ as_pci->gpio_chip.parent = &pdev->dev;
as_pci->gpio_chip.of_node = pdev->dev.parent->of_node;
ret = gpiochip_add(&as_pci->gpio_chip);
if (ret < 0) {
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index 33edd07d9149..f1daf8580167 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -290,7 +290,7 @@ static void atmel_gpio_irq_handler(struct irq_desc *desc)
static int atmel_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
- struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->dev);
+ struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->parent);
struct atmel_pin *pin = atmel_pioctrl->pins[offset];
unsigned reg;
@@ -305,7 +305,7 @@ static int atmel_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int atmel_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->dev);
+ struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->parent);
struct atmel_pin *pin = atmel_pioctrl->pins[offset];
unsigned reg;
@@ -317,7 +317,7 @@ static int atmel_gpio_get(struct gpio_chip *chip, unsigned offset)
static int atmel_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
int value)
{
- struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->dev);
+ struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->parent);
struct atmel_pin *pin = atmel_pioctrl->pins[offset];
unsigned reg;
@@ -336,7 +336,7 @@ static int atmel_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
static void atmel_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
{
- struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->dev);
+ struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->parent);
struct atmel_pin *pin = atmel_pioctrl->pins[offset];
atmel_gpio_write(atmel_pioctrl, pin->bank,
@@ -346,7 +346,7 @@ static void atmel_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
static int atmel_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
- struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->dev);
+ struct atmel_pioctrl *atmel_pioctrl = dev_get_drvdata(chip->parent);
return irq_find_mapping(atmel_pioctrl->irq_domain, offset);
}
@@ -969,7 +969,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
atmel_pioctrl->gpio_chip->of_node = dev->of_node;
atmel_pioctrl->gpio_chip->ngpio = atmel_pioctrl->npins;
atmel_pioctrl->gpio_chip->label = dev_name(dev);
- atmel_pioctrl->gpio_chip->dev = dev;
+ atmel_pioctrl->gpio_chip->parent = dev;
atmel_pioctrl->gpio_chip->names = atmel_pioctrl->group_names;
atmel_pioctrl->pm_wakeup_sources = devm_kzalloc(dev,
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 0d2fc0cff35e..667d90607abc 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1750,7 +1750,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
chip = &at91_chip->chip;
chip->of_node = np;
chip->label = dev_name(&pdev->dev);
- chip->dev = &pdev->dev;
+ chip->parent = &pdev->dev;
chip->owner = THIS_MODULE;
chip->base = alias_idx * MAX_NB_GPIO_PER_BANK;
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index 813eb7c771ec..e1cbf56df4b2 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -637,7 +637,7 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
gpio->chip = u300_gpio_chip;
gpio->chip.ngpio = U300_GPIO_NUM_PORTS * U300_GPIO_PINS_PER_PORT;
- gpio->chip.dev = &pdev->dev;
+ gpio->chip.parent = &pdev->dev;
gpio->chip.base = 0;
gpio->dev = &pdev->dev;
diff --git a/drivers/pinctrl/pinctrl-digicolor.c b/drivers/pinctrl/pinctrl-digicolor.c
index 38a7799f8257..d8efb2ccac6c 100644
--- a/drivers/pinctrl/pinctrl-digicolor.c
+++ b/drivers/pinctrl/pinctrl-digicolor.c
@@ -244,7 +244,7 @@ static int dc_gpiochip_add(struct dc_pinmap *pmap, struct device_node *np)
int ret;
chip->label = DRIVER_NAME;
- chip->dev = pmap->dev;
+ chip->parent = pmap->dev;
chip->request = gpiochip_generic_request;
chip->free = gpiochip_generic_free;
chip->direction_input = dc_gpio_direction_input;
diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c
index 85c9046c690e..fd5148d106a3 100644
--- a/drivers/pinctrl/pinctrl-pistachio.c
+++ b/drivers/pinctrl/pinctrl-pistachio.c
@@ -1388,7 +1388,7 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
bank->pctl = pctl;
bank->base = pctl->base + GPIO_BANK_BASE(i);
- bank->gpio_chip.dev = pctl->dev;
+ bank->gpio_chip.parent = pctl->dev;
bank->gpio_chip.of_node = child;
ret = gpiochip_add(&bank->gpio_chip);
if (ret < 0) {
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index a0651128e23a..2b88a40f61d3 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1754,7 +1754,7 @@ static int rockchip_gpiolib_register(struct platform_device *pdev,
gc = &bank->gpio_chip;
gc->base = bank->pin_base;
gc->ngpio = bank->nr_pins;
- gc->dev = &pdev->dev;
+ gc->parent = &pdev->dev;
gc->of_node = bank->of_node;
gc->label = bank->name;
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index b58d3f29148a..52639e65ea67 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1522,7 +1522,7 @@ static int st_gpiolib_register_bank(struct st_pinctrl *info,
bank->gpio_chip.base = bank_num * ST_GPIO_PINS_PER_BANK;
bank->gpio_chip.ngpio = ST_GPIO_PINS_PER_BANK;
bank->gpio_chip.of_node = np;
- bank->gpio_chip.dev = dev;
+ bank->gpio_chip.parent = dev;
spin_lock_init(&bank->lock);
of_property_read_string(np, "st,bank-name", &range->name);
diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index ae724bdab3d3..e56222eac96c 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -648,7 +648,7 @@ static struct ltq_pinmux_info xway_info = {
/* --------- gpio_chip related code --------- */
static void xway_gpio_set(struct gpio_chip *chip, unsigned int pin, int val)
{
- struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
+ struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
if (val)
gpio_setbit(info->membase[0], GPIO_OUT(pin), PORT_PIN(pin));
@@ -658,14 +658,14 @@ static void xway_gpio_set(struct gpio_chip *chip, unsigned int pin, int val)
static int xway_gpio_get(struct gpio_chip *chip, unsigned int pin)
{
- struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
+ struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
return gpio_getbit(info->membase[0], GPIO_IN(pin), PORT_PIN(pin));
}
static int xway_gpio_dir_in(struct gpio_chip *chip, unsigned int pin)
{
- struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
+ struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
gpio_clearbit(info->membase[0], GPIO_DIR(pin), PORT_PIN(pin));
@@ -674,7 +674,7 @@ static int xway_gpio_dir_in(struct gpio_chip *chip, unsigned int pin)
static int xway_gpio_dir_out(struct gpio_chip *chip, unsigned int pin, int val)
{
- struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
+ struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
gpio_setbit(info->membase[0], GPIO_DIR(pin), PORT_PIN(pin));
xway_gpio_set(chip, pin, val);
@@ -682,6 +682,22 @@ static int xway_gpio_dir_out(struct gpio_chip *chip, unsigned int pin, int val)
return 0;
}
+/*
+ * gpiolib gpiod_to_irq callback function.
+ * Returns the mapped IRQ (external interrupt) number for a given GPIO pin.
+ */
+static int xway_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
+ int i;
+
+ for (i = 0; i < info->num_exin; i++)
+ if (info->exin[i] == offset)
+ return ltq_eiu_get_irq(i);
+
+ return -1;
+}
+
static struct gpio_chip xway_chip = {
.label = "gpio-xway",
.direction_input = xway_gpio_dir_in,
@@ -690,6 +706,7 @@ static struct gpio_chip xway_chip = {
.set = xway_gpio_set,
.request = gpiochip_generic_request,
.free = gpiochip_generic_free,
+ .to_irq = xway_gpio_to_irq,
.base = -1,
};
@@ -783,7 +800,7 @@ static int pinmux_xway_probe(struct platform_device *pdev)
xway_pctrl_desc.pins = xway_info.pads;
/* load the gpio chip */
- xway_chip.dev = &pdev->dev;
+ xway_chip.parent = &pdev->dev;
ret = gpiochip_add(&xway_chip);
if (ret) {
dev_err(&pdev->dev, "Failed to register gpio chip\n");
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 146264a41ec8..af2a13040898 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -800,7 +800,7 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
chip->base = 0;
chip->ngpio = ngpio;
chip->label = dev_name(pctrl->dev);
- chip->dev = pctrl->dev;
+ chip->parent = pctrl->dev;
chip->owner = THIS_MODULE;
chip->of_node = pctrl->dev->of_node;
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
index 6c42ca14d2fd..3e5ccc76d59c 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -760,7 +760,7 @@ static int pmic_gpio_probe(struct platform_device *pdev)
}
state->chip = pmic_gpio_gpio_template;
- state->chip.dev = dev;
+ state->chip.parent = dev;
state->chip.base = -1;
state->chip.ngpio = npins;
state->chip.label = dev_name(dev);
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
index 9ce0e30e33e8..69c14ba177d0 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
@@ -862,7 +862,7 @@ static int pmic_mpp_probe(struct platform_device *pdev)
}
state->chip = pmic_mpp_gpio_template;
- state->chip.dev = dev;
+ state->chip.parent = dev;
state->chip.base = -1;
state->chip.ngpio = npins;
state->chip.label = dev_name(dev);
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
index 19a3c3bc2f1f..7bea0df06fb1 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
@@ -730,7 +730,7 @@ static int pm8xxx_gpio_probe(struct platform_device *pdev)
pctrl->chip = pm8xxx_gpio_template;
pctrl->chip.base = -1;
- pctrl->chip.dev = &pdev->dev;
+ pctrl->chip.parent = &pdev->dev;
pctrl->chip.of_node = pdev->dev.of_node;
pctrl->chip.of_gpio_n_cells = 2;
pctrl->chip.label = dev_name(pctrl->dev);
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
index b868ef1766a0..8f5c96cbf94e 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
@@ -821,7 +821,7 @@ static int pm8xxx_mpp_probe(struct platform_device *pdev)
pctrl->chip = pm8xxx_mpp_template;
pctrl->chip.base = -1;
- pctrl->chip.dev = &pdev->dev;
+ pctrl->chip.parent = &pdev->dev;
pctrl->chip.of_node = pdev->dev.of_node;
pctrl->chip.of_gpio_n_cells = 2;
pctrl->chip.label = dev_name(pctrl->dev);
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 71ccf6a90b22..7d7374e57f16 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -176,7 +176,8 @@ static int exynos_irq_request_resources(struct irq_data *irqd)
ret = gpiochip_lock_as_irq(&bank->gpio_chip, irqd->hwirq);
if (ret) {
- dev_err(bank->gpio_chip.dev, "unable to lock pin %s-%lu IRQ\n",
+ dev_err(bank->gpio_chip.parent,
+ "unable to lock pin %s-%lu IRQ\n",
bank->name, irqd->hwirq);
return ret;
}
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos5440.c b/drivers/pinctrl/samsung/pinctrl-exynos5440.c
index 82dc109f7ed4..f61f9a6fa9af 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos5440.c
@@ -539,7 +539,7 @@ static const struct pinconf_ops exynos5440_pinconf_ops = {
/* gpiolib gpio_set callback function */
static void exynos5440_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
{
- struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->parent);
void __iomem *base = priv->reg_base;
u32 data;
@@ -553,7 +553,7 @@ static void exynos5440_gpio_set(struct gpio_chip *gc, unsigned offset, int value
/* gpiolib gpio_get callback function */
static int exynos5440_gpio_get(struct gpio_chip *gc, unsigned offset)
{
- struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->parent);
void __iomem *base = priv->reg_base;
u32 data;
@@ -566,7 +566,7 @@ static int exynos5440_gpio_get(struct gpio_chip *gc, unsigned offset)
/* gpiolib gpio_direction_input callback function */
static int exynos5440_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
{
- struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->parent);
void __iomem *base = priv->reg_base;
u32 data;
@@ -586,7 +586,7 @@ static int exynos5440_gpio_direction_input(struct gpio_chip *gc, unsigned offset
static int exynos5440_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
int value)
{
- struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->parent);
void __iomem *base = priv->reg_base;
u32 data;
@@ -607,7 +607,7 @@ static int exynos5440_gpio_direction_output(struct gpio_chip *gc, unsigned offse
/* gpiolib gpio_to_irq callback function */
static int exynos5440_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->parent);
unsigned int virq;
if (offset < 16 || offset > 23)
@@ -817,7 +817,7 @@ static int exynos5440_gpiolib_register(struct platform_device *pdev,
priv->gc = gc;
gc->base = 0;
gc->ngpio = EXYNOS5440_MAX_PINS;
- gc->dev = &pdev->dev;
+ gc->parent = &pdev->dev;
gc->set = exynos5440_gpio_set;
gc->get = exynos5440_gpio_get;
gc->direction_input = exynos5440_gpio_direction_input;
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index 3f622ccd8eab..bb4db2050f19 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -914,7 +914,7 @@ static int samsung_gpiolib_register(struct platform_device *pdev,
gc = &bank->gpio_chip;
gc->base = drvdata->pin_base + bank->pin_base;
gc->ngpio = bank->nr_pins;
- gc->dev = &pdev->dev;
+ gc->parent = &pdev->dev;
gc->of_node = bank->of_node;
gc->label = bank->name;
diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index db3f09aa8993..cdb2460a7b00 100644
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -246,7 +246,7 @@ static int gpio_pin_setup(struct sh_pfc_chip *chip)
gc->to_irq = gpio_pin_to_irq;
gc->label = pfc->info->name;
- gc->dev = pfc->dev;
+ gc->parent = pfc->dev;
gc->owner = THIS_MODULE;
gc->base = 0;
gc->ngpio = pfc->nr_gpio_pins;
diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c
index 829018c812bd..1850dc1b3863 100644
--- a/drivers/pinctrl/sirf/pinctrl-atlas7.c
+++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c
@@ -6012,7 +6012,7 @@ static int atlas7_gpio_probe(struct platform_device *pdev)
chip->label = kstrdup(np->name, GFP_KERNEL);
chip->of_node = np;
chip->of_gpio_n_cells = 2;
- chip->dev = &pdev->dev;
+ chip->parent = &pdev->dev;
/* Add gpio chip to system */
ret = gpiochip_add(chip);
diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
index 2a8d69725de8..ae97bdc75a69 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -811,7 +811,7 @@ static int sirfsoc_gpio_probe(struct device_node *np)
sgpio->chip.gc.of_node = np;
sgpio->chip.gc.of_xlate = sirfsoc_gpio_of_xlate;
sgpio->chip.gc.of_gpio_n_cells = 2;
- sgpio->chip.gc.dev = &pdev->dev;
+ sgpio->chip.gc.parent = &pdev->dev;
sgpio->chip.regs = regs;
err = gpiochip_add(&sgpio->chip.gc);
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index 1f0af250dbb5..925f597de266 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -561,7 +561,7 @@ static int plgpio_probe(struct platform_device *pdev)
plgpio->chip.get = plgpio_get_value;
plgpio->chip.set = plgpio_set_value;
plgpio->chip.label = dev_name(&pdev->dev);
- plgpio->chip.dev = &pdev->dev;
+ plgpio->chip.parent = &pdev->dev;
plgpio->chip.owner = THIS_MODULE;
plgpio->chip.of_node = pdev->dev.of_node;
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index dead97daca35..a437e4f8628b 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -454,7 +454,7 @@ static int sunxi_pinctrl_gpio_direction_input(struct gpio_chip *chip,
static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->parent);
u32 reg = sunxi_data_reg(offset);
u8 index = sunxi_data_offset(offset);
u32 set_mux = pctl->desc->irq_read_needs_mux &&
@@ -475,7 +475,7 @@ static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset)
static void sunxi_pinctrl_gpio_set(struct gpio_chip *chip,
unsigned offset, int value)
{
- struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->parent);
u32 reg = sunxi_data_reg(offset);
u8 index = sunxi_data_offset(offset);
unsigned long flags;
@@ -522,7 +522,7 @@ static int sunxi_pinctrl_gpio_of_xlate(struct gpio_chip *gc,
static int sunxi_pinctrl_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
- struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
+ struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->parent);
struct sunxi_desc_function *desc;
unsigned pinnum = pctl->desc->pin_base + offset;
unsigned irqnum;
@@ -536,7 +536,7 @@ static int sunxi_pinctrl_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
irqnum = desc->irqbank * IRQ_PER_BANK + desc->irqnum;
- dev_dbg(chip->dev, "%s: request IRQ for GPIO %d, return %d\n",
+ dev_dbg(chip->parent, "%s: request IRQ for GPIO %d, return %d\n",
chip->label, offset + chip->base, irqnum);
return irq_find_mapping(pctl->domain, irqnum);
@@ -959,7 +959,7 @@ int sunxi_pinctrl_init(struct platform_device *pdev,
pctl->chip->ngpio = round_up(last_pin, PINS_PER_BANK) -
pctl->desc->pin_base;
pctl->chip->label = dev_name(&pdev->dev);
- pctl->chip->dev = &pdev->dev;
+ pctl->chip->parent = &pdev->dev;
pctl->chip->base = pctl->desc->pin_base;
ret = gpiochip_add(pctl->chip);
diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.c b/drivers/pinctrl/vt8500/pinctrl-wmt.c
index fb22d3f62480..e9c1dfd90570 100644
--- a/drivers/pinctrl/vt8500/pinctrl-wmt.c
+++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c
@@ -488,7 +488,7 @@ static struct pinctrl_desc wmt_desc = {
static int wmt_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
- struct wmt_pinctrl_data *data = dev_get_drvdata(chip->dev);
+ struct wmt_pinctrl_data *data = dev_get_drvdata(chip->parent);
u32 bank = WMT_BANK_FROM_PIN(offset);
u32 bit = WMT_BIT_FROM_PIN(offset);
u32 reg_dir = data->banks[bank].reg_dir;
@@ -503,7 +503,7 @@ static int wmt_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
static int wmt_gpio_get_value(struct gpio_chip *chip, unsigned offset)
{
- struct wmt_pinctrl_data *data = dev_get_drvdata(chip->dev);
+ struct wmt_pinctrl_data *data = dev_get_drvdata(chip->parent);
u32 bank = WMT_BANK_FROM_PIN(offset);
u32 bit = WMT_BIT_FROM_PIN(offset);
u32 reg_data_in = data->banks[bank].reg_data_in;
@@ -519,7 +519,7 @@ static int wmt_gpio_get_value(struct gpio_chip *chip, unsigned offset)
static void wmt_gpio_set_value(struct gpio_chip *chip, unsigned offset,
int val)
{
- struct wmt_pinctrl_data *data = dev_get_drvdata(chip->dev);
+ struct wmt_pinctrl_data *data = dev_get_drvdata(chip->parent);
u32 bank = WMT_BANK_FROM_PIN(offset);
u32 bit = WMT_BIT_FROM_PIN(offset);
u32 reg_data_out = data->banks[bank].reg_data_out;
@@ -575,7 +575,7 @@ int wmt_pinctrl_probe(struct platform_device *pdev,
wmt_desc.npins = data->npins;
data->gpio_chip = wmt_gpio_chip;
- data->gpio_chip.dev = &pdev->dev;
+ data->gpio_chip.parent = &pdev->dev;
data->gpio_chip.of_node = pdev->dev.of_node;
data->gpio_chip.ngpio = data->nbanks * 32;
diff --git a/drivers/platform/x86/intel_pmic_gpio.c b/drivers/platform/x86/intel_pmic_gpio.c
index 709f0afdafa8..0e73fd10ba72 100644
--- a/drivers/platform/x86/intel_pmic_gpio.c
+++ b/drivers/platform/x86/intel_pmic_gpio.c
@@ -274,11 +274,11 @@ static int platform_pmic_gpio_probe(struct platform_device *pdev)
pg->chip.base = pdata->gpio_base;
pg->chip.ngpio = NUM_GPIO;
pg->chip.can_sleep = 1;
- pg->chip.dev = dev;
+ pg->chip.parent = dev;
mutex_init(&pg->buslock);
- pg->chip.dev = dev;
+ pg->chip.parent = dev;
retval = gpiochip_add(&pg->chip);
if (retval) {
pr_err("Can not add pmic gpio chip\n");
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index d45133056f51..3f98165b479c 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1174,7 +1174,7 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
#ifdef CONFIG_GPIOLIB
/* Setup GPIO cotroller */
s->gpio.owner = THIS_MODULE;
- s->gpio.dev = dev;
+ s->gpio.parent = dev;
s->gpio.label = dev_name(dev);
s->gpio.direction_input = max310x_gpio_direction_input;
s->gpio.get = max310x_gpio_get;
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index edb5305b9d4d..cc86c348d809 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1180,7 +1180,7 @@ static int sc16is7xx_probe(struct device *dev,
if (devtype->nr_gpio) {
/* Setup GPIO cotroller */
s->gpio.owner = THIS_MODULE;
- s->gpio.dev = dev;
+ s->gpio.parent = dev;
s->gpio.label = dev_name(dev);
s->gpio.direction_input = sc16is7xx_gpio_direction_input;
s->gpio.get = sc16is7xx_gpio_get;
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index d1baebf350d8..b02c43be7859 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -20,7 +20,7 @@ struct seq_file;
/**
* struct gpio_chip - abstract a GPIO controller
* @label: for diagnostics
- * @dev: optional device providing the GPIOs
+ * @parent: optional parent device providing the GPIOs
* @cdev: class device used by sysfs interface (may be NULL)
* @owner: helps prevent removal of modules exporting active GPIOs
* @list: links gpio_chips together for traversal
@@ -89,7 +89,7 @@ struct seq_file;
*/
struct gpio_chip {
const char *label;
- struct device *dev;
+ struct device *parent;
struct device *cdev;
struct module *owner;
struct list_head list;
diff --git a/include/linux/platform_data/gpio-rcar.h b/include/linux/platform_data/gpio-rcar.h
deleted file mode 100644
index 2d8d69432813..000000000000
--- a/include/linux/platform_data/gpio-rcar.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Renesas R-Car GPIO Support
- *
- * Copyright (C) 2013 Magnus Damm
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GPIO_RCAR_H__
-#define __GPIO_RCAR_H__
-
-struct gpio_rcar_config {
- int gpio_base;
- unsigned int irq_base;
- unsigned int number_of_pins;
- const char *pctl_name;
- unsigned has_both_edge_trigger:1;
-};
-
-#define RCAR_GP_PIN(bank, pin) (((bank) * 32) + (pin))
-
-#endif /* __GPIO_RCAR_H__ */
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 74bc85473b58..15aa5f07c955 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -417,11 +417,13 @@
#define AC97_RATES_MIC_ADC 4
#define AC97_RATES_SPDIF 5
+#define AC97_NUM_GPIOS 16
/*
*
*/
struct snd_ac97;
+struct snd_ac97_gpio_priv;
struct snd_pcm_chmap;
struct snd_ac97_build_ops {
@@ -529,6 +531,7 @@ struct snd_ac97 {
struct delayed_work power_work;
#endif
struct device dev;
+ struct snd_ac97_gpio_priv *gpio_priv;
struct snd_pcm_chmap *chmaps[2]; /* channel-maps (optional) */
};
diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index 69d987a9935c..2828591a4b03 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -4696,7 +4696,7 @@ static void rt5677_init_gpio(struct i2c_client *i2c)
rt5677->gpio_chip = rt5677_template_chip;
rt5677->gpio_chip.ngpio = RT5677_GPIO_NUM;
- rt5677->gpio_chip.dev = &i2c->dev;
+ rt5677->gpio_chip.parent = &i2c->dev;
rt5677->gpio_chip.base = -1;
ret = gpiochip_add(&rt5677->gpio_chip);
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index c2cdcae18ff6..171a23ddd15d 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2306,7 +2306,7 @@ static void wm5100_init_gpio(struct i2c_client *i2c)
wm5100->gpio_chip = wm5100_template_chip;
wm5100->gpio_chip.ngpio = 6;
- wm5100->gpio_chip.dev = &i2c->dev;
+ wm5100->gpio_chip.parent = &i2c->dev;
if (wm5100->pdata.gpio_base)
wm5100->gpio_chip.base = wm5100->pdata.gpio_base;
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index e4cc41e6c23e..2512def0d349 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1853,7 +1853,7 @@ static void wm8903_init_gpio(struct wm8903_priv *wm8903)
wm8903->gpio_chip = wm8903_template_chip;
wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
- wm8903->gpio_chip.dev = wm8903->dev;
+ wm8903->gpio_chip.parent = wm8903->dev;
if (pdata->gpio_base)
wm8903->gpio_chip.base = pdata->gpio_base;
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index a7e79784fc16..6a49b36d12f9 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3380,7 +3380,7 @@ static void wm8962_init_gpio(struct snd_soc_codec *codec)
wm8962->gpio_chip = wm8962_template_chip;
wm8962->gpio_chip.ngpio = WM8962_MAX_GPIO;
- wm8962->gpio_chip.dev = codec->dev;
+ wm8962->gpio_chip.parent = codec->dev;
if (pdata->gpio_base)
wm8962->gpio_chip.base = pdata->gpio_base;
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index f7ccd9fc5808..8d7d6c01a2f7 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -2204,7 +2204,7 @@ static void wm8996_init_gpio(struct wm8996_priv *wm8996)
wm8996->gpio_chip = wm8996_template_chip;
wm8996->gpio_chip.ngpio = 5;
- wm8996->gpio_chip.dev = wm8996->dev;
+ wm8996->gpio_chip.parent = wm8996->dev;
if (wm8996->pdata.gpio_base)
wm8996->gpio_chip.base = wm8996->pdata.gpio_base;
diff --git a/sound/soc/soc-ac97.c b/sound/soc/soc-ac97.c
index d40efc9fe0a9..a2012652f212 100644
--- a/sound/soc/soc-ac97.c
+++ b/sound/soc/soc-ac97.c
@@ -20,6 +20,7 @@
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/init.h>
#include <linux/of_gpio.h>
#include <linux/of.h>
@@ -38,6 +39,14 @@ struct snd_ac97_reset_cfg {
int gpio_reset;
};
+struct snd_ac97_gpio_priv {
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gpio_chip;
+#endif
+ unsigned int gpios_set;
+ struct snd_soc_codec *codec;
+};
+
static struct snd_ac97_bus soc_ac97_bus = {
.ops = NULL, /* Gets initialized in snd_soc_set_ac97_ops() */
};
@@ -47,6 +56,117 @@ static void soc_ac97_device_release(struct device *dev)
kfree(to_ac97_t(dev));
}
+#ifdef CONFIG_GPIOLIB
+static inline struct snd_soc_codec *gpio_to_codec(struct gpio_chip *chip)
+{
+ struct snd_ac97_gpio_priv *gpio_priv =
+ container_of(chip, struct snd_ac97_gpio_priv, gpio_chip);
+
+ return gpio_priv->codec;
+}
+
+static int snd_soc_ac97_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ if (offset >= AC97_NUM_GPIOS)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int snd_soc_ac97_gpio_direction_in(struct gpio_chip *chip,
+ unsigned offset)
+{
+ struct snd_soc_codec *codec = gpio_to_codec(chip);
+
+ dev_dbg(codec->dev, "set gpio %d to output\n", offset);
+ return snd_soc_update_bits(codec, AC97_GPIO_CFG,
+ 1 << offset, 1 << offset);
+}
+
+static int snd_soc_ac97_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct snd_soc_codec *codec = gpio_to_codec(chip);
+ int ret;
+
+ ret = snd_soc_read(codec, AC97_GPIO_STATUS);
+ dev_dbg(codec->dev, "get gpio %d : %d\n", offset,
+ ret < 0 ? ret : ret & (1 << offset));
+
+ return ret < 0 ? ret : ret & (1 << offset);
+}
+
+static void snd_soc_ac97_gpio_set(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ struct snd_ac97_gpio_priv *gpio_priv =
+ container_of(chip, struct snd_ac97_gpio_priv, gpio_chip);
+ struct snd_soc_codec *codec = gpio_to_codec(chip);
+
+ gpio_priv->gpios_set &= ~(1 << offset);
+ gpio_priv->gpios_set |= (!!value) << offset;
+ snd_soc_write(codec, AC97_GPIO_STATUS, gpio_priv->gpios_set);
+ dev_dbg(codec->dev, "set gpio %d to %d\n", offset, !!value);
+}
+
+static int snd_soc_ac97_gpio_direction_out(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct snd_soc_codec *codec = gpio_to_codec(chip);
+
+ dev_dbg(codec->dev, "set gpio %d to output\n", offset);
+ snd_soc_ac97_gpio_set(chip, offset, value);
+ return snd_soc_update_bits(codec, AC97_GPIO_CFG, 1 << offset, 0);
+}
+
+static struct gpio_chip snd_soc_ac97_gpio_chip = {
+ .label = "snd_soc_ac97",
+ .owner = THIS_MODULE,
+ .request = snd_soc_ac97_gpio_request,
+ .direction_input = snd_soc_ac97_gpio_direction_in,
+ .get = snd_soc_ac97_gpio_get,
+ .direction_output = snd_soc_ac97_gpio_direction_out,
+ .set = snd_soc_ac97_gpio_set,
+ .can_sleep = 1,
+};
+
+static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,
+ struct snd_soc_codec *codec)
+{
+ struct snd_ac97_gpio_priv *gpio_priv;
+ int ret;
+
+ gpio_priv = devm_kzalloc(codec->dev, sizeof(*gpio_priv), GFP_KERNEL);
+ if (!gpio_priv)
+ return -ENOMEM;
+ ac97->gpio_priv = gpio_priv;
+ gpio_priv->codec = codec;
+ gpio_priv->gpio_chip = snd_soc_ac97_gpio_chip;
+ gpio_priv->gpio_chip.ngpio = AC97_NUM_GPIOS;
+ gpio_priv->gpio_chip.parent = codec->dev;
+ gpio_priv->gpio_chip.base = -1;
+
+ ret = gpiochip_add(&gpio_priv->gpio_chip);
+ if (ret != 0)
+ dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
+ return ret;
+}
+
+static void snd_soc_ac97_free_gpio(struct snd_ac97 *ac97)
+{
+ gpiochip_remove(&ac97->gpio_priv->gpio_chip);
+}
+#else
+static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,
+ struct snd_soc_codec *codec)
+{
+ return 0;
+}
+
+static void snd_soc_ac97_free_gpio(struct snd_ac97 *ac97)
+{
+}
+#endif
+
/**
* snd_soc_alloc_ac97_codec() - Allocate new a AC'97 device
* @codec: The CODEC for which to create the AC'97 device
@@ -119,6 +239,10 @@ struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
if (ret)
goto err_put_device;
+ ret = snd_soc_ac97_init_gpio(ac97, codec);
+ if (ret)
+ goto err_put_device;
+
return ac97;
err_put_device:
@@ -135,6 +259,7 @@ EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
*/
void snd_soc_free_ac97_codec(struct snd_ac97 *ac97)
{
+ snd_soc_ac97_free_gpio(ac97);
device_del(&ac97->dev);
ac97->bus = NULL;
put_device(&ac97->dev);