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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>
This commit is contained in:
Mark Brown 2011-12-29 11:44:03 +00:00
parent ee60d0155d
commit 008f8d4f99
1 changed files with 15 additions and 7 deletions
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22
sound/soc/codecs/wm8978.c
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@ -1000,13 +1000,6 @@ static int wm8978_probe(struct snd_soc_codec *codec)
for (i = 0; i < ARRAY_SIZE(update_reg); i++) for (i = 0; i < ARRAY_SIZE(update_reg); i++)
snd_soc_update_bits(codec, update_reg[i], 0x100, 0x100); 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); wm8978_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0; return 0;
@ -1066,9 +1059,24 @@ static __devinit int wm8978_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, wm8978); 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, ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8978, &wm8978_dai, 1); &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; return ret;
} }