The register ASRCFG is volatile, but some bits need to be recovered after suspend/resume.

Signed-off-by: Zidan Wang zidan.wang@freescale.com --- v1->v2: 1. fix indentation issue. 2. add a macro for the magic number.

sound/soc/fsl/fsl_asrc.c | 7 +++++++ sound/soc/fsl/fsl_asrc.h | 6 ++++++ 2 files changed, 13 insertions(+)

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 484e46ca..d964016 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c @@ -990,6 +990,9 @@ static int fsl_asrc_suspend(struct device *dev) { struct fsl_asrc *asrc_priv = dev_get_drvdata(dev);

+ regmap_read(asrc_priv->regmap, REG_ASRCFG, + &asrc_priv->regcache_cfg); + regcache_cache_only(asrc_priv->regmap, true); regcache_mark_dirty(asrc_priv->regmap);

@@ -1010,6 +1013,10 @@ static int fsl_asrc_resume(struct device *dev) regcache_cache_only(asrc_priv->regmap, false); regcache_sync(asrc_priv->regmap);

+ regmap_update_bits(asrc_priv->regmap, REG_ASRCFG, + ASRCFG_NDPRi_ALL_MASK | ASRCFG_POSTMODi_ALL_MASK | + ASRCFG_PREMODi_ALL_MASK, asrc_priv->regcache_cfg); + /* Restart enabled pairs */ regmap_update_bits(asrc_priv->regmap, REG_ASRCTR, ASRCTR_ASRCEi_ALL_MASK, asrctr); diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h index 68802cd..c119cb0 100644 --- a/sound/soc/fsl/fsl_asrc.h +++ b/sound/soc/fsl/fsl_asrc.h @@ -132,10 +132,13 @@ #define ASRCFG_INIRQi (1 << ASRCFG_INIRQi_SHIFT(i)) #define ASRCFG_NDPRi_SHIFT(i) (18 + i) #define ASRCFG_NDPRi_MASK(i) (1 << ASRCFG_NDPRi_SHIFT(i)) +#define ASRCFG_NDPRi_ALL_SHIFT 18 +#define ASRCFG_NDPRi_ALL_MASK (7 << ASRCFG_NDPRi_ALL_SHIFT) #define ASRCFG_NDPRi (1 << ASRCFG_NDPRi_SHIFT(i)) #define ASRCFG_POSTMODi_SHIFT(i) (8 + (i << 2)) #define ASRCFG_POSTMODi_WIDTH 2 #define ASRCFG_POSTMODi_MASK(i) (((1 << ASRCFG_POSTMODi_WIDTH) - 1) << ASRCFG_POSTMODi_SHIFT(i)) +#define ASRCFG_POSTMODi_ALL_MASK (ASRCFG_POSTMODi_MASK(0) | ASRCFG_POSTMODi_MASK(1) | ASRCFG_POSTMODi_MASK(2)) #define ASRCFG_POSTMOD(i, v) ((v) << ASRCFG_POSTMODi_SHIFT(i)) #define ASRCFG_POSTMODi_UP(i) (0 << ASRCFG_POSTMODi_SHIFT(i)) #define ASRCFG_POSTMODi_DCON(i) (1 << ASRCFG_POSTMODi_SHIFT(i)) @@ -143,6 +146,7 @@ #define ASRCFG_PREMODi_SHIFT(i) (6 + (i << 2)) #define ASRCFG_PREMODi_WIDTH 2 #define ASRCFG_PREMODi_MASK(i) (((1 << ASRCFG_PREMODi_WIDTH) - 1) << ASRCFG_PREMODi_SHIFT(i)) +#define ASRCFG_PREMODi_ALL_MASK (ASRCFG_PREMODi_MASK(0) | ASRCFG_PREMODi_MASK(1) | ASRCFG_PREMODi_MASK(2)) #define ASRCFG_PREMOD(i, v) ((v) << ASRCFG_PREMODi_SHIFT(i)) #define ASRCFG_PREMODi_UP(i) (0 << ASRCFG_PREMODi_SHIFT(i)) #define ASRCFG_PREMODi_DCON(i) (1 << ASRCFG_PREMODi_SHIFT(i)) @@ -453,6 +457,8 @@ struct fsl_asrc {

int asrc_rate; int asrc_width; + + u32 regcache_cfg; };

extern struct snd_soc_platform_driver fsl_asrc_platform;