leds: lp55xx: enable setting default trigger

This enables setting a default trigger on an LP55xx channel,
either from platform data or device tree. This mechanism is
identical to the mechanism for GPIO LEDs and references the
common LEDs device tree bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Milo Kim <milo.kim@ti.com>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 351825b96f16..075acf5b9fab 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -165,6 +165,7 @@ static int lp55xx_init_led(struct lp55xx_led *led,
         led->led_current = pdata->led_config[chan].led_current;
         led->max_current = pdata->led_config[chan].max_current;
         led->chan_nr = pdata->led_config[chan].chan_nr;
+        led->cdev.default_trigger = pdata->led_config[chan].default_trigger;
 
         if (led->chan_nr >= max_channel) {
                 dev_err(dev, "Use channel numbers between 0 and %d\n",
@@ -586,6 +587,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np)
                 of_property_read_string(child, "chan-name", &cfg[i].name);
                 of_property_read_u8(child, "led-cur", &cfg[i].led_current);
                 of_property_read_u8(child, "max-cur", &cfg[i].max_current);
+                cfg[i].default_trigger =
+                        of_get_property(child, "linux,default-trigger", NULL);
 
                 i++;
         }