redonkable/alistair23-linux
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ASoC: tlv312aic23: unbreak resume

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* commit f9dfbf9 "ASoC: tlv320aic23: convert to soc-cache" leads to
a bug preventing resumeof the codec as regmap expects a 9 bits data
register but 0xFFFF is passed in tlv320aic23_set_bias_level and this
values gets cached preventing any write to the TLV320AIC23_PWR
register as the final value produced by regmap is (register << 9) | value

* this patch solves the problem by only working on the 9 bits the
register contains.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Eric Bénard 2012-04-29 17:37:57 +02:00 committed by Mark Brown
parent a3a53fe154
commit e875c1e3e7
1 changed files with 2 additions and 2 deletions
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4
sound/soc/codecs/tlv320aic23.c
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@ -472,7 +472,7 @@ static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0xff7f;
u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f;
switch (level) {
case SND_SOC_BIAS_ON:
@ -491,7 +491,7 @@ static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_OFF:
/* everything off, dac mute, inactive */
snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
snd_soc_write(codec, TLV320AIC23_PWR, 0xffff);
snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff);
break;
}
codec->dapm.bias_level = level;