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 <enric.balletbo@xxxxxxxxxxxxx>
---
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
