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ASoC: sta350: Use devm_gpiod_get_optional at appropriate place

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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 34d7c3905adb9a9
("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
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4
sound/soc/codecs/sta350.c
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@ -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);