| Message ID | 1449745370-18960-1-git-send-email-zidan.wang@freescale.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Dec 10, 2015 at 07:02:48PM +0800, Zidan Wang wrote: > diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c > index 3e404ba..942e74bc 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); Indentation. > + > regcache_cache_only(asrc_priv->regmap, true); > regcache_mark_dirty(asrc_priv->regmap); > > @@ -1010,6 +1013,9 @@ 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, > + 0x1FFFC0, asrc_priv->regcache_cfg); Either add a macro or a comment for the magic number. > + > /* 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..3695ca9 100644 > --- a/sound/soc/fsl/fsl_asrc.h > +++ b/sound/soc/fsl/fsl_asrc.h > @@ -453,6 +453,8 @@ struct fsl_asrc { > > int asrc_rate; > int asrc_width; > + > + u32 regcache_cfg; > }; > > extern struct snd_soc_platform_driver fsl_asrc_platform; > -- > 1.9.1 >
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 3e404ba..942e74bc 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 +1013,9 @@ 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, + 0x1FFFC0, 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..3695ca9 100644 --- a/sound/soc/fsl/fsl_asrc.h +++ b/sound/soc/fsl/fsl_asrc.h @@ -453,6 +453,8 @@ struct fsl_asrc { int asrc_rate; int asrc_width; + + u32 regcache_cfg; }; extern struct snd_soc_platform_driver fsl_asrc_platform;
The register ASRCFG is volatile, but some bits need to be recovered after suspend/resume. Signed-off-by: Zidan Wang <zidan.wang@freescale.com> --- sound/soc/fsl/fsl_asrc.c | 6 ++++++ sound/soc/fsl/fsl_asrc.h | 2 ++ 2 files changed, 8 insertions(+)