openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ASoC: sta350: Use devm_gpiod_get_optional at appropriate place 

devm_gpiod_get_optional is equivalent to devm_gpiod_get(), except that
when no GPIO was assigned to the requested function it will return NULL.
This is convenient for drivers that need to handle optional GPIOs.

I just checked the code in commit 34d7c3905a
("ASoC: improve usage of gpiod API") and found that it should use
devm_gpiod_get_optional rather than devm_gpiod_get here.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Axel Lin 2015-05-09 23:09:32 +08:00 committed by Mark Brown
parent b787f68c36
commit c9eac46254
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/soc/codecs/sta350.c
View File

@ -1218,8 +1218,8 @@ static int sta350_i2c_probe(struct i2c_client *i2c,
if (IS_ERR(sta350->gpiod_nreset))
return PTR_ERR(sta350->gpiod_nreset);
sta350->gpiod_power_down = devm_gpiod_get(dev, "power-down",
GPIOD_OUT_LOW);
sta350->gpiod_power_down = devm_gpiod_get_optional(dev, "power-down",
GPIOD_OUT_LOW);
if (IS_ERR(sta350->gpiod_power_down))
return PTR_ERR(sta350->gpiod_power_down);