From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Thu, 4 Jun 2015 13:04:13 +0000 (+0300)
Subject: ASoC: tas2552: Make the enable-gpio really optional
X-Git-Tag: v4.2-rc1~109^2~38^2~2^3~17
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ea178d1456dcf88875d5edd148f2df8ea0de1794;p=karo-tx-linux.git

ASoC: tas2552: Make the enable-gpio really optional

Do not fail the probe if the enable-gpio is not specifiedbut handle
deferred probe case.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index dfb4ff5cc9ea..ff82f46ba504 100644
--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -486,8 +486,12 @@ static int tas2552_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	data->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
-	if (IS_ERR(data->enable_gpio))
-		return PTR_ERR(data->enable_gpio);
+	if (IS_ERR(data->enable_gpio)) {
+		if (PTR_ERR(data->enable_gpio) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+
+		data->enable_gpio = NULL;;
+	}
 
 	data->tas2552_client = client;
 	data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config);