From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 29 Dec 2011 11:44:03 +0000 (+0000)
Subject: ASoC: Push wm8978 reset down into the I2C probe
X-Git-Tag: firefly_0821_release~3680^2~2691^2~52^2~112
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=008f8d4f9955b5f20be06ed99434cc2f8b025e06;p=firefly-linux-kernel-4.4.55.git

ASoC: Push wm8978 reset down into the I2C probe

Ensures that we get control of the CODEC earlier and don't try to probe
the card at all if register I/O isn't working.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c
index 5ff8734d5d2e..72d5fdcd3cc2 100644
--- a/sound/soc/codecs/wm8978.c
+++ b/sound/soc/codecs/wm8978.c
@@ -1000,13 +1000,6 @@ static int wm8978_probe(struct snd_soc_codec *codec)
 	for (i = 0; i < ARRAY_SIZE(update_reg); i++)
 		snd_soc_update_bits(codec, update_reg[i], 0x100, 0x100);
 
-	/* Reset the codec */
-	ret = snd_soc_write(codec, WM8978_RESET, 0);
-	if (ret < 0) {
-		dev_err(codec->dev, "Failed to issue reset\n");
-		return ret;
-	}
-
 	wm8978_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
 	return 0;
@@ -1066,9 +1059,24 @@ static __devinit int wm8978_i2c_probe(struct i2c_client *i2c,
 
 	i2c_set_clientdata(i2c, wm8978);
 
+	/* Reset the codec */
+	ret = regmap_write(wm8978->regmap, WM8978_RESET, 0);
+	if (ret != 0) {
+		dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
+		goto err;
+	}
+
 	ret = snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_wm8978, &wm8978_dai, 1);
+	if (ret != 0) {
+		dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
+		goto err;
+	}
 
+	return 0;
+
+err:
+	regmap_exit(wm8978->regmap);
 	return ret;
 }