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authorAdam Thomson <Adam.Thomson.Opensource@diasemi.com>2016-05-10 16:11:06 +0100
committerMark Brown <broonie@kernel.org>2016-05-10 19:24:19 +0100
commit7e28fd469624fc41ec326a31abbc63a7afdd10f5 (patch)
tree00cbbdc6e6965d7279130826f8ad518bfdc77f7b /sound
parentd575b0b0f01a805508c5cf48b540f004e9b5de07 (diff)
downloadlinux-7e28fd469624fc41ec326a31abbc63a7afdd10f5.tar.bz2
ASoC: da7213: Default PC counter to free-running when DAI disabled
Currently PC counter is always synchronised to DAI which means that when the DAI is disabled, features such as ALC calibration cannot be executed successfully. This patch makes sure that when the DAI is disabled, PC counter is set to free-running. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/da7213.c13
-rw-r--r--sound/soc/codecs/da7213.h3
2 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c
index 680d11116ccf..657b7eba9954 100644
--- a/sound/soc/codecs/da7213.c
+++ b/sound/soc/codecs/da7213.c
@@ -746,6 +746,10 @@ static int da7213_dai_event(struct snd_soc_dapm_widget *w,
DA7213_DAI_CLK_EN_MASK,
DA7213_DAI_CLK_EN_MASK);
+ /* PC synchronised to DAI */
+ snd_soc_update_bits(codec, DA7213_PC_COUNT,
+ DA7213_PC_FREERUN_MASK, 0);
+
/* Slave mode, if SRM not enabled no need for status checks */
pll_ctrl = snd_soc_read(codec, DA7213_PLL_CTRL);
if (!(pll_ctrl & DA7213_PLL_SRM_EN))
@@ -767,6 +771,11 @@ static int da7213_dai_event(struct snd_soc_dapm_widget *w,
return 0;
case SND_SOC_DAPM_POST_PMD:
+ /* PC free-running */
+ snd_soc_update_bits(codec, DA7213_PC_COUNT,
+ DA7213_PC_FREERUN_MASK,
+ DA7213_PC_FREERUN_MASK);
+
/* Disable DAI clks if in master mode */
if (da7213->master)
snd_soc_update_bits(codec, DA7213_DAI_CLK_MODE,
@@ -1599,6 +1608,10 @@ static int da7213_probe(struct snd_soc_codec *codec)
/* Default to using SRM for slave mode */
da7213->srm_en = true;
+ /* Default PC counter to free-running */
+ snd_soc_update_bits(codec, DA7213_PC_COUNT, DA7213_PC_FREERUN_MASK,
+ DA7213_PC_FREERUN_MASK);
+
/* Enable all Gain Ramps */
snd_soc_update_bits(codec, DA7213_AUX_L_CTRL,
DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
diff --git a/sound/soc/codecs/da7213.h b/sound/soc/codecs/da7213.h
index af75340dea63..26b87e3c3088 100644
--- a/sound/soc/codecs/da7213.h
+++ b/sound/soc/codecs/da7213.h
@@ -413,6 +413,9 @@
#define DA7213_DMIC_CLK_RATE_SHIFT 2
#define DA7213_DMIC_CLK_RATE_MASK (0x1 << 2)
+/* DA7213_PC_COUNT = 0x94 */
+#define DA7213_PC_FREERUN_MASK (0x1 << 0)
+
/* DA7213_DIG_CTRL = 0x99 */
#define DA7213_DAC_L_INV_SHIFT 3
#define DA7213_DAC_R_INV_SHIFT 7