This patch allows users to use an alternate pinctrl "sleep" in order to clamp outputs to a wanted state at suspend.
Signed-off-by: Enric Balletbo i Serra <[email protected]> --- drivers/leds/leds-gpio.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index d400dca..a2e9bdb 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -20,6 +20,7 @@ #include <linux/platform_device.h> #include <linux/property.h> #include <linux/slab.h> +#include <linux/pm.h> struct gpio_led_data { struct led_classdev cdev; @@ -269,12 +270,31 @@ static void gpio_led_shutdown(struct platform_device *pdev) } } +#ifdef CONFIG_PM_SLEEP +static int gpio_led_suspend(struct device *dev) +{ + pinctrl_pm_select_sleep_state(dev); + + return 0; +} + +static int gpio_led_resume(struct device *dev) +{ + pinctrl_pm_select_default_state(dev); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(gpio_led_pm, gpio_led_suspend, gpio_led_resume); + static struct platform_driver gpio_led_driver = { .probe = gpio_led_probe, .shutdown = gpio_led_shutdown, .driver = { .name = "leds-gpio", .of_match_table = of_gpio_leds_match, + .pm = &gpio_led_pm, }, }; -- 2.9.3
