[PATCH v8 4/7] ASoC: simple-amplifier: make enable-gpio optional

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Amplifier may have no enable GPIO, so make this property
optional.

Signed-off-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx>
---
 sound/soc/codecs/simple-amplifier.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/simple-amplifier.c b/sound/soc/codecs/simple-amplifier.c
index c07e8a80b4b7..351aa55c384e 100644
--- a/sound/soc/codecs/simple-amplifier.c
+++ b/sound/soc/codecs/simple-amplifier.c
@@ -89,7 +89,8 @@ static int simple_amp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	platform_set_drvdata(pdev, priv);
 
-	priv->gpiod_enable = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+	priv->gpiod_enable = devm_gpiod_get_optional(dev, "enable",
+						     GPIOD_OUT_LOW);
 	if (IS_ERR(priv->gpiod_enable)) {
 		err = PTR_ERR(priv->gpiod_enable);
 		if (err != -EPROBE_DEFER)
-- 
2.19.1

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