diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2014-03-18 12:02:05 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-04-14 20:22:43 +0400 |
| commit | f6272ff8a5f42c614f4a338013f5323979121e0f (patch) | |
| tree | 3234194eddb26577f3fa1c8e2ea720fe6c005a97 | |
| parent | ea53bf77d147e7e560ac007fdaa30fb98c37c712 (diff) | |
| download | linux-f6272ff8a5f42c614f4a338013f5323979121e0f.tar.xz | |
ASoC: Add snd_soc_kcontrol_platform() helper function
For platform controls snd_kcontrol_chip() currently returns a pointer to the
platform that registered the control. With the upcoming consolidation of
platform and CODEC controls this will change. Prepare for this by introducing
the snd_soc_kcontrol_platform() helper function that will hide the
implementation details of how the platform for a control can be obtained. This
will allow us to change this easily in the future.
The patch also updates all platforms to use this new helper function.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
| -rw-r--r-- | include/sound/soc.h | 14 | ||||
| -rw-r--r-- | sound/soc/intel/sst-haswell-pcm.c | 8 |
2 files changed, 18 insertions, 4 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index e150030b754d..14e7457e2347 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1242,6 +1242,20 @@ static inline struct snd_soc_codec *snd_soc_kcontrol_codec( return snd_kcontrol_chip(kcontrol); } +/** + * snd_soc_kcontrol_platform() - Returns the platform that registerd the control + * @kcontrol: The control for which to get the platform + * + * Note: This function will only work correctly if the control has been + * registered with snd_soc_add_platform_controls() or via table based setup of + * a snd_soc_platform_driver. Otherwise the behavior is undefined. + */ +static inline struct snd_soc_codec *snd_soc_kcontrol_platform( + struct snd_kcontrol *kcontrol) +{ + return snd_kcontrol_chip(kcontrol); +} + int snd_soc_util_init(void); void snd_soc_util_exit(void); diff --git a/sound/soc/intel/sst-haswell-pcm.c b/sound/soc/intel/sst-haswell-pcm.c index 0a32dd13a23d..67a5eb3c6196 100644 --- a/sound/soc/intel/sst-haswell-pcm.c +++ b/sound/soc/intel/sst-haswell-pcm.c @@ -136,7 +136,7 @@ static inline unsigned int hsw_ipc_to_mixer(u32 value) static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); + struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct hsw_priv_data *pdata = @@ -174,7 +174,7 @@ static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol, static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); + struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct hsw_priv_data *pdata = @@ -206,7 +206,7 @@ static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol, static int hsw_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); + struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol); struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform); struct sst_hsw *hsw = pdata->hsw; u32 volume; @@ -231,7 +231,7 @@ static int hsw_volume_put(struct snd_kcontrol *kcontrol, static int hsw_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol); + struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol); struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform); struct sst_hsw *hsw = pdata->hsw; unsigned int volume = 0; |