summaryrefslogtreecommitdiffstats
path: root/drivers/power
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-06-03 00:23:54 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2022-06-03 00:23:54 +0200
commit96479c09803b21d195c95fd4b145cd3a5a591ba0 (patch)
tree962b4a7f1eb98832e87eaf4aa18dea84a19addf5 /drivers/power
parentMerge tag 'net-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff)
parentARM: pxa/mmp: remove traces of plat-pxa (diff)
downloadlinux-96479c09803b21d195c95fd4b145cd3a5a591ba0.tar.xz
linux-96479c09803b21d195c95fd4b145cd3a5a591ba0.zip
Merge tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM multiplatform updates from Arnd Bergmann: "The second part of the multiplatform changes now converts the Intel/Marvell PXA platform along with the rest. The patches went through several rebases before the merge window as bugs were found, so they remained separate. This has to touch a lot of drivers, in particular the touchscreen, pcmcia, sound and clk bits, to detach the driver files from the platform and board specific header files" * tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits) ARM: pxa/mmp: remove traces of plat-pxa ARM: pxa: convert to multiplatform ARM: pxa/sa1100: move I/O space to PCI_IOBASE ARM: pxa: remove support for MTD_XIP ARM: pxa: move mach/*.h to mach-pxa/ ARM: PXA: fix multi-cpu build of xsc3 ARM: pxa: move plat-pxa to drivers/soc/ ARM: mmp: rename pxa_register_device ARM: mmp: remove tavorevb board support ARM: pxa: remove unused mach/bitfield.h ARM: pxa: move clk register definitions to driver ARM: pxa: move smemc register access from clk to platform cpufreq: pxa3: move clk register access to clk driver ARM: pxa: remove get_clk_frequency_khz() ARM: pxa: pcmcia: move smemc configuration back to arch ASoC: pxa: i2s: use normal MMIO accessors ASoC: pxa: ac97: use normal MMIO accessors ASoC: pxa: use pdev resource for FIFO regs Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops Input: wm97xx - switch to using threaded IRQ ...
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/supply/tosa_battery.c172
1 files changed, 109 insertions, 63 deletions
diff --git a/drivers/power/supply/tosa_battery.c b/drivers/power/supply/tosa_battery.c
index 32cc31cd4761..73d4aca4c386 100644
--- a/drivers/power/supply/tosa_battery.c
+++ b/drivers/power/supply/tosa_battery.c
@@ -12,10 +12,9 @@
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <asm/mach-types.h>
-#include <mach/tosa.h>
static DEFINE_MUTEX(bat_lock); /* protects gpio pins */
static struct work_struct bat_work;
@@ -28,22 +27,23 @@ struct tosa_bat {
struct mutex work_lock; /* protects data */
bool (*is_present)(struct tosa_bat *bat);
- int gpio_full;
- int gpio_charge_off;
+ struct gpio_desc *gpiod_full;
+ struct gpio_desc *gpiod_charge_off;
int technology;
- int gpio_bat;
+ struct gpio_desc *gpiod_bat;
int adc_bat;
int adc_bat_divider;
int bat_max;
int bat_min;
- int gpio_temp;
+ struct gpio_desc *gpiod_temp;
int adc_temp;
int adc_temp_divider;
};
+static struct gpio_desc *jacket_detect;
static struct tosa_bat tosa_bat_main;
static struct tosa_bat tosa_bat_jacket;
@@ -51,15 +51,15 @@ static unsigned long tosa_read_bat(struct tosa_bat *bat)
{
unsigned long value = 0;
- if (bat->gpio_bat < 0 || bat->adc_bat < 0)
+ if (!bat->gpiod_bat || bat->adc_bat < 0)
return 0;
mutex_lock(&bat_lock);
- gpio_set_value(bat->gpio_bat, 1);
+ gpiod_set_value(bat->gpiod_bat, 1);
msleep(5);
value = wm97xx_read_aux_adc(dev_get_drvdata(bat->psy->dev.parent),
bat->adc_bat);
- gpio_set_value(bat->gpio_bat, 0);
+ gpiod_set_value(bat->gpiod_bat, 0);
mutex_unlock(&bat_lock);
value = value * 1000000 / bat->adc_bat_divider;
@@ -71,15 +71,15 @@ static unsigned long tosa_read_temp(struct tosa_bat *bat)
{
unsigned long value = 0;
- if (bat->gpio_temp < 0 || bat->adc_temp < 0)
+ if (!bat->gpiod_temp || bat->adc_temp < 0)
return 0;
mutex_lock(&bat_lock);
- gpio_set_value(bat->gpio_temp, 1);
+ gpiod_set_value(bat->gpiod_temp, 1);
msleep(5);
value = wm97xx_read_aux_adc(dev_get_drvdata(bat->psy->dev.parent),
bat->adc_temp);
- gpio_set_value(bat->gpio_temp, 0);
+ gpiod_set_value(bat->gpiod_temp, 0);
mutex_unlock(&bat_lock);
value = value * 10000 / bat->adc_temp_divider;
@@ -136,7 +136,7 @@ static int tosa_bat_get_property(struct power_supply *psy,
static bool tosa_jacket_bat_is_present(struct tosa_bat *bat)
{
- return gpio_get_value(TOSA_GPIO_JACKET_DETECT) == 0;
+ return gpiod_get_value(jacket_detect) == 0;
}
static void tosa_bat_external_power_changed(struct power_supply *psy)
@@ -166,23 +166,23 @@ static void tosa_bat_update(struct tosa_bat *bat)
bat->full_chrg = -1;
} else if (power_supply_am_i_supplied(psy)) {
if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) {
- gpio_set_value(bat->gpio_charge_off, 0);
+ gpiod_set_value(bat->gpiod_charge_off, 0);
mdelay(15);
}
- if (gpio_get_value(bat->gpio_full)) {
+ if (gpiod_get_value(bat->gpiod_full)) {
if (old == POWER_SUPPLY_STATUS_CHARGING ||
bat->full_chrg == -1)
bat->full_chrg = tosa_read_bat(bat);
- gpio_set_value(bat->gpio_charge_off, 1);
+ gpiod_set_value(bat->gpiod_charge_off, 1);
bat->status = POWER_SUPPLY_STATUS_FULL;
} else {
- gpio_set_value(bat->gpio_charge_off, 0);
+ gpiod_set_value(bat->gpiod_charge_off, 0);
bat->status = POWER_SUPPLY_STATUS_CHARGING;
}
} else {
- gpio_set_value(bat->gpio_charge_off, 1);
+ gpiod_set_value(bat->gpiod_charge_off, 1);
bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
}
@@ -251,18 +251,18 @@ static struct tosa_bat tosa_bat_main = {
.full_chrg = -1,
.psy = NULL,
- .gpio_full = TOSA_GPIO_BAT0_CRG,
- .gpio_charge_off = TOSA_GPIO_CHARGE_OFF,
+ .gpiod_full = NULL,
+ .gpiod_charge_off = NULL,
.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
- .gpio_bat = TOSA_GPIO_BAT0_V_ON,
+ .gpiod_bat = NULL,
.adc_bat = WM97XX_AUX_ID3,
.adc_bat_divider = 414,
.bat_max = 4310000,
.bat_min = 1551 * 1000000 / 414,
- .gpio_temp = TOSA_GPIO_BAT1_TH_ON,
+ .gpiod_temp = NULL,
.adc_temp = WM97XX_AUX_ID2,
.adc_temp_divider = 10000,
};
@@ -273,18 +273,18 @@ static struct tosa_bat tosa_bat_jacket = {
.psy = NULL,
.is_present = tosa_jacket_bat_is_present,
- .gpio_full = TOSA_GPIO_BAT1_CRG,
- .gpio_charge_off = TOSA_GPIO_CHARGE_OFF_JC,
+ .gpiod_full = NULL,
+ .gpiod_charge_off = NULL,
.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
- .gpio_bat = TOSA_GPIO_BAT1_V_ON,
+ .gpiod_bat = NULL,
.adc_bat = WM97XX_AUX_ID3,
.adc_bat_divider = 414,
.bat_max = 4310000,
.bat_min = 1551 * 1000000 / 414,
- .gpio_temp = TOSA_GPIO_BAT0_TH_ON,
+ .gpiod_temp = NULL,
.adc_temp = WM97XX_AUX_ID2,
.adc_temp_divider = 10000,
};
@@ -294,36 +294,20 @@ static struct tosa_bat tosa_bat_bu = {
.full_chrg = -1,
.psy = NULL,
- .gpio_full = -1,
- .gpio_charge_off = -1,
+ .gpiod_full = NULL,
+ .gpiod_charge_off = NULL,
.technology = POWER_SUPPLY_TECHNOLOGY_LiMn,
- .gpio_bat = TOSA_GPIO_BU_CHRG_ON,
+ .gpiod_bat = NULL,
.adc_bat = WM97XX_AUX_ID4,
.adc_bat_divider = 1266,
- .gpio_temp = -1,
+ .gpiod_temp = NULL,
.adc_temp = -1,
.adc_temp_divider = -1,
};
-static struct gpio tosa_bat_gpios[] = {
- { TOSA_GPIO_CHARGE_OFF, GPIOF_OUT_INIT_HIGH, "main charge off" },
- { TOSA_GPIO_CHARGE_OFF_JC, GPIOF_OUT_INIT_HIGH, "jacket charge off" },
- { TOSA_GPIO_BAT_SW_ON, GPIOF_OUT_INIT_LOW, "battery switch" },
- { TOSA_GPIO_BAT0_V_ON, GPIOF_OUT_INIT_LOW, "main battery" },
- { TOSA_GPIO_BAT1_V_ON, GPIOF_OUT_INIT_LOW, "jacket battery" },
- { TOSA_GPIO_BAT1_TH_ON, GPIOF_OUT_INIT_LOW, "main battery temp" },
- { TOSA_GPIO_BAT0_TH_ON, GPIOF_OUT_INIT_LOW, "jacket battery temp" },
- { TOSA_GPIO_BU_CHRG_ON, GPIOF_OUT_INIT_LOW, "backup battery" },
- { TOSA_GPIO_BAT0_CRG, GPIOF_IN, "main battery full" },
- { TOSA_GPIO_BAT1_CRG, GPIOF_IN, "jacket battery full" },
- { TOSA_GPIO_BAT0_LOW, GPIOF_IN, "main battery low" },
- { TOSA_GPIO_BAT1_LOW, GPIOF_IN, "jacket battery low" },
- { TOSA_GPIO_JACKET_DETECT, GPIOF_IN, "jacket detect" },
-};
-
#ifdef CONFIG_PM
static int tosa_bat_suspend(struct platform_device *dev, pm_message_t state)
{
@@ -343,19 +327,83 @@ static int tosa_bat_resume(struct platform_device *dev)
#define tosa_bat_resume NULL
#endif
-static int tosa_bat_probe(struct platform_device *dev)
+static int tosa_bat_probe(struct platform_device *pdev)
{
int ret;
struct power_supply_config main_psy_cfg = {},
jacket_psy_cfg = {},
bu_psy_cfg = {};
+ struct device *dev = &pdev->dev;
+ struct gpio_desc *dummy;
if (!machine_is_tosa())
return -ENODEV;
- ret = gpio_request_array(tosa_bat_gpios, ARRAY_SIZE(tosa_bat_gpios));
- if (ret)
- return ret;
+ /* Main charging control GPIOs */
+ tosa_bat_main.gpiod_charge_off = devm_gpiod_get(dev, "main charge off", GPIOD_OUT_HIGH);
+ if (IS_ERR(tosa_bat_main.gpiod_charge_off))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_main.gpiod_charge_off),
+ "no main charger GPIO\n");
+ tosa_bat_jacket.gpiod_charge_off = devm_gpiod_get(dev, "jacket charge off", GPIOD_OUT_HIGH);
+ if (IS_ERR(tosa_bat_jacket.gpiod_charge_off))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_jacket.gpiod_charge_off),
+ "no jacket charger GPIO\n");
+
+ /* Per-battery output check (routes battery voltage to ADC) */
+ tosa_bat_main.gpiod_bat = devm_gpiod_get(dev, "main battery", GPIOD_OUT_LOW);
+ if (IS_ERR(tosa_bat_main.gpiod_bat))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_main.gpiod_bat),
+ "no main battery GPIO\n");
+ tosa_bat_jacket.gpiod_bat = devm_gpiod_get(dev, "jacket battery", GPIOD_OUT_LOW);
+ if (IS_ERR(tosa_bat_jacket.gpiod_bat))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_jacket.gpiod_bat),
+ "no jacket battery GPIO\n");
+ tosa_bat_bu.gpiod_bat = devm_gpiod_get(dev, "backup battery", GPIOD_OUT_LOW);
+ if (IS_ERR(tosa_bat_bu.gpiod_bat))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_bu.gpiod_bat),
+ "no backup battery GPIO\n");
+
+ /* Battery full detect GPIOs (using PXA SoC GPIOs) */
+ tosa_bat_main.gpiod_full = devm_gpiod_get(dev, "main battery full", GPIOD_IN);
+ if (IS_ERR(tosa_bat_main.gpiod_full))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_main.gpiod_full),
+ "no main battery full GPIO\n");
+ tosa_bat_jacket.gpiod_full = devm_gpiod_get(dev, "jacket battery full", GPIOD_IN);
+ if (IS_ERR(tosa_bat_jacket.gpiod_full))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_jacket.gpiod_full),
+ "no jacket battery full GPIO\n");
+
+ /* Battery temperature GPIOs (routes thermistor voltage to ADC) */
+ tosa_bat_main.gpiod_temp = devm_gpiod_get(dev, "main battery temp", GPIOD_OUT_LOW);
+ if (IS_ERR(tosa_bat_main.gpiod_temp))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_main.gpiod_temp),
+ "no main battery temp GPIO\n");
+ tosa_bat_jacket.gpiod_temp = devm_gpiod_get(dev, "jacket battery temp", GPIOD_OUT_LOW);
+ if (IS_ERR(tosa_bat_jacket.gpiod_temp))
+ return dev_err_probe(dev, PTR_ERR(tosa_bat_jacket.gpiod_temp),
+ "no jacket battery temp GPIO\n");
+
+ /* Jacket detect GPIO */
+ jacket_detect = devm_gpiod_get(dev, "jacket detect", GPIOD_IN);
+ if (IS_ERR(jacket_detect))
+ return dev_err_probe(dev, PTR_ERR(jacket_detect),
+ "no jacket detect GPIO\n");
+
+ /* Battery low indication GPIOs (not used, we just request them) */
+ dummy = devm_gpiod_get(dev, "main battery low", GPIOD_IN);
+ if (IS_ERR(dummy))
+ return dev_err_probe(dev, PTR_ERR(dummy),
+ "no main battery low GPIO\n");
+ dummy = devm_gpiod_get(dev, "jacket battery low", GPIOD_IN);
+ if (IS_ERR(dummy))
+ return dev_err_probe(dev, PTR_ERR(dummy),
+ "no jacket battery low GPIO\n");
+
+ /* Battery switch GPIO (not used just requested) */
+ dummy = devm_gpiod_get(dev, "battery switch", GPIOD_OUT_LOW);
+ if (IS_ERR(dummy))
+ return dev_err_probe(dev, PTR_ERR(dummy),
+ "no battery switch GPIO\n");
mutex_init(&tosa_bat_main.work_lock);
mutex_init(&tosa_bat_jacket.work_lock);
@@ -363,7 +411,7 @@ static int tosa_bat_probe(struct platform_device *dev)
INIT_WORK(&bat_work, tosa_bat_work);
main_psy_cfg.drv_data = &tosa_bat_main;
- tosa_bat_main.psy = power_supply_register(&dev->dev,
+ tosa_bat_main.psy = power_supply_register(dev,
&tosa_bat_main_desc,
&main_psy_cfg);
if (IS_ERR(tosa_bat_main.psy)) {
@@ -372,7 +420,7 @@ static int tosa_bat_probe(struct platform_device *dev)
}
jacket_psy_cfg.drv_data = &tosa_bat_jacket;
- tosa_bat_jacket.psy = power_supply_register(&dev->dev,
+ tosa_bat_jacket.psy = power_supply_register(dev,
&tosa_bat_jacket_desc,
&jacket_psy_cfg);
if (IS_ERR(tosa_bat_jacket.psy)) {
@@ -381,28 +429,28 @@ static int tosa_bat_probe(struct platform_device *dev)
}
bu_psy_cfg.drv_data = &tosa_bat_bu;
- tosa_bat_bu.psy = power_supply_register(&dev->dev, &tosa_bat_bu_desc,
+ tosa_bat_bu.psy = power_supply_register(dev, &tosa_bat_bu_desc,
&bu_psy_cfg);
if (IS_ERR(tosa_bat_bu.psy)) {
ret = PTR_ERR(tosa_bat_bu.psy);
goto err_psy_reg_bu;
}
- ret = request_irq(gpio_to_irq(TOSA_GPIO_BAT0_CRG),
+ ret = request_irq(gpiod_to_irq(tosa_bat_main.gpiod_full),
tosa_bat_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"main full", &tosa_bat_main);
if (ret)
goto err_req_main;
- ret = request_irq(gpio_to_irq(TOSA_GPIO_BAT1_CRG),
+ ret = request_irq(gpiod_to_irq(tosa_bat_jacket.gpiod_full),
tosa_bat_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"jacket full", &tosa_bat_jacket);
if (ret)
goto err_req_jacket;
- ret = request_irq(gpio_to_irq(TOSA_GPIO_JACKET_DETECT),
+ ret = request_irq(gpiod_to_irq(jacket_detect),
tosa_bat_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"jacket detect", &tosa_bat_jacket);
@@ -411,9 +459,9 @@ static int tosa_bat_probe(struct platform_device *dev)
return 0;
}
- free_irq(gpio_to_irq(TOSA_GPIO_BAT1_CRG), &tosa_bat_jacket);
+ free_irq(gpiod_to_irq(tosa_bat_jacket.gpiod_full), &tosa_bat_jacket);
err_req_jacket:
- free_irq(gpio_to_irq(TOSA_GPIO_BAT0_CRG), &tosa_bat_main);
+ free_irq(gpiod_to_irq(tosa_bat_main.gpiod_full), &tosa_bat_main);
err_req_main:
power_supply_unregister(tosa_bat_bu.psy);
err_psy_reg_bu:
@@ -425,15 +473,14 @@ err_psy_reg_main:
/* see comment in tosa_bat_remove */
cancel_work_sync(&bat_work);
- gpio_free_array(tosa_bat_gpios, ARRAY_SIZE(tosa_bat_gpios));
return ret;
}
static int tosa_bat_remove(struct platform_device *dev)
{
- free_irq(gpio_to_irq(TOSA_GPIO_JACKET_DETECT), &tosa_bat_jacket);
- free_irq(gpio_to_irq(TOSA_GPIO_BAT1_CRG), &tosa_bat_jacket);
- free_irq(gpio_to_irq(TOSA_GPIO_BAT0_CRG), &tosa_bat_main);
+ free_irq(gpiod_to_irq(jacket_detect), &tosa_bat_jacket);
+ free_irq(gpiod_to_irq(tosa_bat_jacket.gpiod_full), &tosa_bat_jacket);
+ free_irq(gpiod_to_irq(tosa_bat_main.gpiod_full), &tosa_bat_main);
power_supply_unregister(tosa_bat_bu.psy);
power_supply_unregister(tosa_bat_jacket.psy);
@@ -445,7 +492,6 @@ static int tosa_bat_remove(struct platform_device *dev)
* unregistered now.
*/
cancel_work_sync(&bat_work);
- gpio_free_array(tosa_bat_gpios, ARRAY_SIZE(tosa_bat_gpios));
return 0;
}