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ASoC: cs4271.c: improve error handling 

CS4271 CODEC driver adapted to recently introduced error handling in
snd_soc_update_bits().
Added snd_soc_cache_sync() error handling.

Signed-off-by: Alexander Sverdlin <subaparts@yandex.ru>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Alexander Sverdlin 2011-01-21 22:22:07 +03:00 committed by Mark Brown
parent 3f25c9ccb7
commit 0d42e6e77f
1 changed files with 44 additions and 15 deletions
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59
sound/soc/codecs/cs4271.c
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@ -209,6 +209,7 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
struct snd_soc_codec *codec = codec_dai->codec;
struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
unsigned int val = 0;
int ret;
switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
@ -226,22 +227,27 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_LEFT_J:
val |= CS4271_MODE1_DAC_DIF_LJ;
snd_soc_update_bits(codec, CS4271_ADCCTL,
ret = snd_soc_update_bits(codec, CS4271_ADCCTL,
CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_LJ);
if (ret < 0)
return ret;
break;
case SND_SOC_DAIFMT_I2S:
val |= CS4271_MODE1_DAC_DIF_I2S;
snd_soc_update_bits(codec, CS4271_ADCCTL,
ret = snd_soc_update_bits(codec, CS4271_ADCCTL,
CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_I2S);
if (ret < 0)
return ret;
break;
default:
dev_err(codec->dev, "Invalid DAI format\n");
return -EINVAL;
}
snd_soc_update_bits(codec, CS4271_MODE1,
ret = snd_soc_update_bits(codec, CS4271_MODE1,
CS4271_MODE1_DAC_DIF_MASK | CS4271_MODE1_MASTER, val);
if (ret < 0)
return ret;
return 0;
}
@ -250,7 +256,7 @@ static int cs4271_deemph[] = {0, 44100, 48000, 32000};
static int cs4271_set_deemph(struct snd_soc_codec *codec)
{
struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
int i;
int i, ret;
int val = CS4271_DACCTL_DEM_DIS;
if (cs4271->deemph) {
@ -263,8 +269,11 @@ static int cs4271_set_deemph(struct snd_soc_codec *codec)
val <<= 4;
}
return snd_soc_update_bits(codec, CS4271_DACCTL,
ret = snd_soc_update_bits(codec, CS4271_DACCTL,
CS4271_DACCTL_DEM_MASK, val);
if (ret < 0)
return ret;
return 0;
}
static int cs4271_get_deemph(struct snd_kcontrol *kcontrol,
@ -294,7 +303,8 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
unsigned int i, ratio, val;
int i, ret;
unsigned int ratio, val;
cs4271->rate = params_rate(params);
ratio = cs4271->mclk / cs4271->rate;
@ -315,8 +325,10 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
else
val |= cs4271_clk_tab[i].mclk_slave;
snd_soc_update_bits(codec, CS4271_MODE1,
ret = snd_soc_update_bits(codec, CS4271_MODE1,
CS4271_MODE1_MODE_MASK | CS4271_MODE1_DIV_MASK, val);
if (ret < 0)
return ret;
return cs4271_set_deemph(codec);
}
@ -324,6 +336,7 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
static int cs4271_digital_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
int ret;
int val_a = 0;
int val_b = 0;
@ -332,8 +345,12 @@ static int cs4271_digital_mute(struct snd_soc_dai *dai, int mute)
val_b = CS4271_VOLB_MUTE;
}
snd_soc_update_bits(codec, CS4271_VOLA, CS4271_VOLA_MUTE, val_a);
snd_soc_update_bits(codec, CS4271_VOLB, CS4271_VOLB_MUTE, val_b);
ret = snd_soc_update_bits(codec, CS4271_VOLA, CS4271_VOLA_MUTE, val_a);
if (ret < 0)
return ret;
ret = snd_soc_update_bits(codec, CS4271_VOLB, CS4271_VOLB_MUTE, val_b);
if (ret < 0)
return ret;
return 0;
}
@ -392,17 +409,25 @@ struct snd_soc_dai_driver cs4271_dai = {
#ifdef CONFIG_PM
static int cs4271_soc_suspend(struct snd_soc_codec *codec, pm_message_t mesg)
{
int ret;
/* Set power-down bit */
snd_soc_update_bits(codec, CS4271_MODE2, 0, CS4271_MODE2_PDN);
ret = snd_soc_update_bits(codec, CS4271_MODE2, 0, CS4271_MODE2_PDN);
if (ret < 0)
return ret;
return 0;
}
static int cs4271_soc_resume(struct snd_soc_codec *codec)
{
int ret;
/* Restore codec state */
snd_soc_cache_sync(codec);
ret = snd_soc_cache_sync(codec);
if (ret < 0)
return ret;
/* then disable the power-down bit */
snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0);
ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0);
if (ret < 0)
return ret;
return 0;
}
#else
@ -467,9 +492,13 @@ static int cs4271_probe(struct snd_soc_codec *codec)
return ret;
}
snd_soc_update_bits(codec, CS4271_MODE2, 0,
ret = snd_soc_update_bits(codec, CS4271_MODE2, 0,
CS4271_MODE2_PDN | CS4271_MODE2_CPEN);
snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0);
if (ret < 0)
return ret;
ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0);
if (ret < 0)
return ret;
/* Power-up sequence requires 85 uS */
udelay(85);