Axel Lin 8604bc2836 ASoC: tas2552: Use devm_gpiod_get_optional for enable-gpio
commit ea178d1456dc ("ASoC: tas2552: Make the enable-gpio really optional")
makes enable-gpio optional. devm_gpiod_get_optional() is the better
function for optional gpio, so let's switch to use it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-11 11:41:58 +01:00
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