[PATCH 2/2] leds: lp8860: Add regulator enable during init
From: Dan Murphy
Date: Wed Nov 15 2017 - 14:53:06 EST
Add the regulator enable call during initialization.
If init fails then disable the regulator.
Also during init the gpio gets set low even
on a passing case so add if everything passes
then return.
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
drivers/leds/leds-lp8860.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index 91b6c5fbd361..f91a4fe25168 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -247,6 +247,15 @@ static int lp8860_init(struct lp8860_led *led)
unsigned int read_buf;
int ret, i, reg_count;
+ if (led->regulator) {
+ ret = regulator_enable(led->regulator);
+ if (ret) {
+ dev_err(&led->client->dev,
+ "Failed to enable regulator\n");
+ return ret;
+ }
+ }
+
if (led->enable_gpio)
gpiod_direction_output(led->enable_gpio, 1);
@@ -282,12 +291,25 @@ static int lp8860_init(struct lp8860_led *led)
ret = regmap_write(led->regmap,
LP8860_EEPROM_CNTRL,
LP8860_PROGRAM_EEPROM);
- if (ret)
+ if (ret) {
dev_err(&led->client->dev, "Failed programming EEPROM\n");
+ goto out;
+ }
+
+ return ret;
+
out:
if (ret)
if (led->enable_gpio)
gpiod_direction_output(led->enable_gpio, 0);
+
+ if (led->regulator) {
+ ret = regulator_disable(led->regulator);
+ if (ret)
+ dev_err(&led->client->dev,
+ "Failed to disable regulator\n");
+ }
+
return ret;
}
--
2.15.0.124.g7668cbc60