Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have two new drivers, some improvements to the core code, lots of
  different updates to existing GPIO drivers and some dt-bindings on
  top.

  There's nothing controversial in here and almost everything has been
  in next for more than a week (95% a lot longer than this). The only
  thing that has spent less time in next is a new driver so no risk of
  regressions.

  The single merge pulls in changes that remove all usage of global GPIO
  numbers from arch/arm/mach-omap.

  Core GPIO library:
   - remove unused symbols
   - don't spam the kernel log with messages about hogs
   - remove old sysfs API cruft
   - improve handling of GPIO masks

  New drivers:
   - add a driver for the BlueField-3 GPIO controller
   - add GPIO support for the TPS65219 PMIC

  Driver improvements:
   - extend the gpio-aggregator driver to support ramp-up/ramp-down
     delay
   - remove unnecessary CONFIG_OF guards from gpio-aggregator
   - readability improvements in gpio-tangier
   - switch i2c drivers back to using probe() now that it's been
     converted in the i2c subsystem to not taking the id parameter
   - remove unused inclusions of of_gpio.h in several drivers
   - make pm ops static in gpio-davinci and fix a comment
   - use more devres in drivers to shrink and simplify the code
   - add missing include in gpio-sa1100
   - add HAS_IOPORT KConfig dependency where needed
   - add permissions checks before accessing pins in gpio-tegra186
   - convert the gpio-zynq driver to using immutable irqchips
   - preserve output settings set by the bootloader in gpio-mpc8xxx

  Selftests:
   - tweak the variable naming in script tests

  Device tree updates:
   - convert gpio-mmio and gpio-stmpe to YAML
   - add parsing of GPIO hogs to gpio-vf610
   - add bindings for the Cirrus EP93xx GPIO controller
   - add gpio-line-names property to the gpio-pca9570 bindings
   - extend the binding for x-powers,axp209 with another block"

* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
  of: unittest: drop assertions for GPIO hog messages
  gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
  gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
  dt-bindings: gpio: gpio-vf610: Add parsing of hogs
  gpio: lpc18xx: Remove unused of_gpio.h inclusion
  gpio: xra1403: Remove unused of_gpio.h inclusion
  gpio: mpc8xxx: Remove unused of_gpio.h inclusion
  dt-bindings: gpio: Add Cirrus EP93xx
  gpio: mpc8xxx: latch GPIOs state on module load when configured as output
  selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
  gpio: mlxbf3: Add gpio driver support
  gpio: delay: Remove duplicative functionality
  gpio: aggregator: Set up a parser of delay line parameters
  gpio: aggregator: Support delay for setting up individual GPIOs
  gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
  dt-bindings: gpio: pca9570: add gpio-line-names property
  gpiolib: remove unused gpio_cansleep()
  gpio: tps65219: add GPIO support for TPS65219 PMIC
  gpio: zynq: fix zynqmp_gpio not an immutable chip warning
  gpio: davinci: make davinci_gpio_dev_pm_ops static
  ...

1 files changed, 130 insertions, 77 deletions

diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index b56cea9f9d2f..3312ef93355d 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -6,17 +6,18 @@
  */
 #include <linux/clkdev.h>
 #include <linux/irq.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/input.h>
 #include <linux/omapfb.h>
 
 #include <linux/spi/spi.h>
-#include <linux/spi/ads7846.h>
 #include <linux/workqueue.h>
 #include <linux/delay.h>
 
@@ -35,6 +36,25 @@
 #include "clock.h"
 #include "mmc.h"
 
+static const struct software_node nokia770_mpuio_gpiochip_node = {
+	.name = "mpuio",
+};
+
+static const struct software_node nokia770_gpiochip1_node = {
+	.name = "gpio-0-15",
+};
+
+static const struct software_node nokia770_gpiochip2_node = {
+	.name = "gpio-16-31",
+};
+
+static const struct software_node *nokia770_gpiochip_nodes[] = {
+	&nokia770_mpuio_gpiochip_node,
+	&nokia770_gpiochip1_node,
+	&nokia770_gpiochip2_node,
+	NULL
+};
+
 #define ADS7846_PENDOWN_GPIO	15
 
 static const unsigned int nokia770_keymap[] = {
@@ -85,40 +105,47 @@ static struct platform_device *nokia770_devices[] __initdata = {
 	&nokia770_kp_device,
 };
 
-static void mipid_shutdown(struct mipid_platform_data *pdata)
-{
-	if (pdata->nreset_gpio != -1) {
-		printk(KERN_INFO "shutdown LCD\n");
-		gpio_set_value(pdata->nreset_gpio, 0);
-		msleep(120);
-	}
-}
-
-static struct mipid_platform_data nokia770_mipid_platform_data = {
-	.shutdown = mipid_shutdown,
-};
+static struct mipid_platform_data nokia770_mipid_platform_data = { };
 
 static const struct omap_lcd_config nokia770_lcd_config __initconst = {
 	.ctrl_name	= "hwa742",
 };
 
+static const struct property_entry nokia770_mipid_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios", &nokia770_gpiochip1_node,
+			    13, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node nokia770_mipid_swnode = {
+	.name = "lcd_mipid",
+	.properties = nokia770_mipid_props,
+};
+
 static void __init mipid_dev_init(void)
 {
-	nokia770_mipid_platform_data.nreset_gpio = 13;
 	nokia770_mipid_platform_data.data_lines = 16;
 
 	omapfb_set_lcd_config(&nokia770_lcd_config);
 }
 
-static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
-	.x_max		= 0x0fff,
-	.y_max		= 0x0fff,
-	.x_plate_ohms	= 180,
-	.pressure_max	= 255,
-	.debounce_max	= 10,
-	.debounce_tol	= 3,
-	.debounce_rep	= 1,
-	.gpio_pendown	= ADS7846_PENDOWN_GPIO,
+static const struct property_entry nokia770_ads7846_props[] = {
+	PROPERTY_ENTRY_STRING("compatible", "ti,ads7846"),
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 4096),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 4096),
+	PROPERTY_ENTRY_U32("touchscreen-max-pressure", 256),
+	PROPERTY_ENTRY_U32("touchscreen-average-samples", 10),
+	PROPERTY_ENTRY_U16("ti,x-plate-ohms", 180),
+	PROPERTY_ENTRY_U16("ti,debounce-tol", 3),
+	PROPERTY_ENTRY_U16("ti,debounce-rep", 1),
+	PROPERTY_ENTRY_GPIO("pendown-gpios", &nokia770_gpiochip1_node,
+			    ADS7846_PENDOWN_GPIO, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node nokia770_ads7846_swnode = {
+	.name = "ads7846",
+	.properties = nokia770_ads7846_props,
 };
 
 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
@@ -128,13 +155,14 @@ static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 		.chip_select    = 3,
 		.max_speed_hz   = 12000000,
 		.platform_data	= &nokia770_mipid_platform_data,
+		.swnode         = &nokia770_mipid_swnode,
 	},
 	[1] = {
 		.modalias       = "ads7846",
 		.bus_num        = 2,
 		.chip_select    = 0,
 		.max_speed_hz   = 2500000,
-		.platform_data	= &nokia770_ads7846_platform_data,
+		.swnode         = &nokia770_ads7846_swnode,
 	},
 };
 
@@ -156,27 +184,23 @@ static struct omap_usb_config nokia770_usb_config __initdata = {
 
 #if IS_ENABLED(CONFIG_MMC_OMAP)
 
-#define NOKIA770_GPIO_MMC_POWER		41
-#define NOKIA770_GPIO_MMC_SWITCH	23
-
-static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
-				int vdd)
-{
-	gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
-	return 0;
-}
-
-static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
-{
-	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
-}
+static struct gpiod_lookup_table nokia770_mmc_gpio_table = {
+	.dev_id = "mmci-omap.1",
+	.table = {
+		/* Slot index 0, VSD power, GPIO 41 */
+		GPIO_LOOKUP_IDX("gpio-32-47", 9,
+				"vsd", 0, GPIO_ACTIVE_HIGH),
+		/* Slot index 0, switch, GPIO 23 */
+		GPIO_LOOKUP_IDX("gpio-16-31", 7,
+				"cover", 0, GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
 
 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 	.nr_slots                       = 1,
 	.max_freq                       = 12000000,
 	.slots[0]       = {
-		.set_power		= nokia770_mmc_set_power,
-		.get_cover_state	= nokia770_mmc_get_cover_state,
 		.ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 		.name                   = "mmcblk",
 	},
@@ -186,20 +210,7 @@ static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 
 static void __init nokia770_mmc_init(void)
 {
-	int ret;
-
-	ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
-	if (ret < 0)
-		return;
-	gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
-
-	ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
-	if (ret < 0) {
-		gpio_free(NOKIA770_GPIO_MMC_POWER);
-		return;
-	}
-	gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
-
+	gpiod_add_lookup_table(&nokia770_mmc_gpio_table);
 	/* Only the second MMC controller is used */
 	nokia770_mmc_data[1] = &nokia770_mmc2_data;
 	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
@@ -212,14 +223,16 @@ static inline void nokia770_mmc_init(void)
 #endif
 
 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
-static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
-	.dev_id = "i2c-cbus-gpio.2",
-	.table = {
-		GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
-		GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
-		GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
-		{ },
-	},
+
+static const struct software_node_ref_args nokia770_cbus_gpio_refs[] = {
+	SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 9, 0),
+	SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 10, 0),
+	SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 11, 0),
+};
+
+static const struct property_entry nokia770_cbus_props[] = {
+	PROPERTY_ENTRY_REF_ARRAY("gpios", nokia770_cbus_gpio_refs),
+	{ }
 };
 
 static struct platform_device nokia770_cbus_device = {
@@ -238,22 +251,29 @@ static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
 
 static void __init nokia770_cbus_init(void)
 {
-	const int retu_irq_gpio = 62;
-	const int tahvo_irq_gpio = 40;
-
-	if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
-		return;
-	if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
-		gpio_free(retu_irq_gpio);
-		return;
+	struct gpio_desc *d;
+	int irq;
+
+	d = gpiod_get(NULL, "retu_irq", GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get CBUS Retu IRQ GPIO descriptor\n");
+	} else {
+		irq = gpiod_to_irq(d);
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+		nokia770_i2c_board_info_2[0].irq = irq;
+	}
+	d = gpiod_get(NULL, "tahvo_irq", GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get CBUS Tahvo IRQ GPIO descriptor\n");
+	} else {
+		irq = gpiod_to_irq(d);
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+		nokia770_i2c_board_info_2[1].irq = irq;
 	}
-	irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
-	irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
-	nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
-	nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
 	i2c_register_board_info(2, nokia770_i2c_board_info_2,
 				ARRAY_SIZE(nokia770_i2c_board_info_2));
-	gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
+	device_create_managed_software_node(&nokia770_cbus_device.dev,
+					    nokia770_cbus_props, NULL);
 	platform_device_register(&nokia770_cbus_device);
 }
 #else /* CONFIG_I2C_CBUS_GPIO */
@@ -262,8 +282,33 @@ static void __init nokia770_cbus_init(void)
 }
 #endif /* CONFIG_I2C_CBUS_GPIO */
 
+static struct gpiod_lookup_table nokia770_irq_gpio_table = {
+	.dev_id = NULL,
+	.table = {
+		/* GPIO used by SPI device 1 */
+		GPIO_LOOKUP("gpio-0-15", 15, "ads7846_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used for retu IRQ */
+		GPIO_LOOKUP("gpio-48-63", 15, "retu_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used for tahvo IRQ */
+		GPIO_LOOKUP("gpio-32-47", 8, "tahvo_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIOs used by serial wakeup IRQs */
+		GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0,
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1,
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2,
+			    GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
 static void __init omap_nokia770_init(void)
 {
+	struct gpio_desc *d;
+
 	/* On Nokia 770, the SleepX signal is masked with an
 	 * MPUIO line by default.  It has to be unmasked for it
 	 * to become functional */
@@ -273,8 +318,16 @@ static void __init omap_nokia770_init(void)
 	/* Unmask SleepX signal */
 	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
 
+	software_node_register_node_group(nokia770_gpiochip_nodes);
 	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
-	nokia770_spi_board_info[1].irq = gpio_to_irq(15);
+
+	gpiod_add_lookup_table(&nokia770_irq_gpio_table);
+	d = gpiod_get(NULL, "ads7846_irq", GPIOD_IN);
+	if (IS_ERR(d))
+		pr_err("Unable to get ADS7846 IRQ GPIO descriptor\n");
+	else
+		nokia770_spi_board_info[1].irq = gpiod_to_irq(d);
+
 	spi_register_board_info(nokia770_spi_board_info,
 				ARRAY_SIZE(nokia770_spi_board_info));
 	omap_serial_init();