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ASoC: Add snd_soc_kcontrol_codec() helper function

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For CODEC controls snd_kcontrol_chip() currently returns a pointer to the
CODEC 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_codec() helper function that will hide the implementation
details of how the CODEC for a control can be obtained. This will allow us to
change this easily in the future.

The patch also updates all CODEC drivers to use the new helper function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen
2014-03-18 09:02:04 +01:00
committed by Mark Brown
parent c9eaa447e7
commit ea53bf77d1
49 changed files with 154 additions and 140 deletions
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14
include/sound/soc.h
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@@ -1228,6 +1228,20 @@ static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec)
return snd_soc_component_is_active(&codec->component);
}
/**
* snd_soc_kcontrol_codec() - Returns the CODEC that registered the control
* @kcontrol: The control for which to get the CODEC
*
* Note: This function will only work correctly if the control has been
* registered with snd_soc_add_codec_controls() or via table based setup of
* snd_soc_codec_driver. Otherwise the behavior is undefined.
*/
static inline struct snd_soc_codec *snd_soc_kcontrol_codec(
struct snd_kcontrol *kcontrol)
{
return snd_kcontrol_chip(kcontrol);
}
int snd_soc_util_init(void);
void snd_soc_util_exit(void);