diff options
Diffstat (limited to 'drivers/gpio/gpio-tps68470.c')
| -rw-r--r-- | drivers/gpio/gpio-tps68470.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/drivers/gpio/gpio-tps68470.c b/drivers/gpio/gpio-tps68470.c index f7f5f770e0fb..d4fbdf90e190 100644 --- a/drivers/gpio/gpio-tps68470.c +++ b/drivers/gpio/gpio-tps68470.c @@ -70,8 +70,8 @@ static int tps68470_gpio_get_direction(struct gpio_chip *gc, GPIO_LINE_DIRECTION_IN; } -static void tps68470_gpio_set(struct gpio_chip *gc, unsigned int offset, - int value) +static int tps68470_gpio_set(struct gpio_chip *gc, unsigned int offset, + int value) { struct tps68470_gpio_data *tps68470_gpio = gpiochip_get_data(gc); struct regmap *regmap = tps68470_gpio->tps68470_regmap; @@ -82,7 +82,8 @@ static void tps68470_gpio_set(struct gpio_chip *gc, unsigned int offset, offset -= TPS68470_N_REGULAR_GPIO; } - regmap_update_bits(regmap, reg, BIT(offset), value ? BIT(offset) : 0); + return regmap_update_bits(regmap, reg, BIT(offset), + value ? BIT(offset) : 0); } static int tps68470_gpio_output(struct gpio_chip *gc, unsigned int offset, @@ -90,14 +91,17 @@ static int tps68470_gpio_output(struct gpio_chip *gc, unsigned int offset, { struct tps68470_gpio_data *tps68470_gpio = gpiochip_get_data(gc); struct regmap *regmap = tps68470_gpio->tps68470_regmap; + int ret; + + /* Set the initial value */ + ret = tps68470_gpio_set(gc, offset, value); + if (ret) + return ret; /* rest are always outputs */ if (offset >= TPS68470_N_REGULAR_GPIO) return 0; - /* Set the initial value */ - tps68470_gpio_set(gc, offset, value); - return regmap_update_bits(regmap, TPS68470_GPIO_CTL_REG_A(offset), TPS68470_GPIO_MODE_MASK, TPS68470_GPIO_MODE_OUT_CMOS); @@ -125,7 +129,6 @@ static const char *tps68470_names[TPS68470_N_GPIO] = { static int tps68470_gpio_probe(struct platform_device *pdev) { struct tps68470_gpio_data *tps68470_gpio; - int ret; tps68470_gpio = devm_kzalloc(&pdev->dev, sizeof(*tps68470_gpio), GFP_KERNEL); @@ -146,16 +149,7 @@ static int tps68470_gpio_probe(struct platform_device *pdev) tps68470_gpio->gc.base = -1; tps68470_gpio->gc.parent = &pdev->dev; - ret = devm_gpiochip_add_data(&pdev->dev, &tps68470_gpio->gc, - tps68470_gpio); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to register gpio_chip: %d\n", ret); - return ret; - } - - platform_set_drvdata(pdev, tps68470_gpio); - - return ret; + return devm_gpiochip_add_data(&pdev->dev, &tps68470_gpio->gc, tps68470_gpio); } static struct platform_driver tps68470_gpio_driver = { @@ -164,5 +158,8 @@ static struct platform_driver tps68470_gpio_driver = { }, .probe = tps68470_gpio_probe, }; +module_platform_driver(tps68470_gpio_driver); -builtin_platform_driver(tps68470_gpio_driver) +MODULE_ALIAS("platform:tps68470-gpio"); +MODULE_DESCRIPTION("GPIO driver for TPS68470 PMIC"); +MODULE_LICENSE("GPL v2"); |