ASoC: Add snd_soc_kcontrol_codec() helper function

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>

1 files changed, 2 insertions, 2 deletions

diff --git a/sound/soc/codecs/lm4857.c b/sound/soc/codecs/lm4857.c
index 4f048db9f55f..a924bb9d7886 100644
--- a/sound/soc/codecs/lm4857.c
+++ b/sound/soc/codecs/lm4857.c
@@ -49,7 +49,7 @@ static const struct reg_default lm4857_default_regs[] = {
 static int lm4857_get_mode(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_value *ucontrol)
 {
-        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct lm4857 *lm4857 = snd_soc_codec_get_drvdata(codec);
 
         ucontrol->value.integer.value[0] = lm4857->mode;
@@ -60,7 +60,7 @@ static int lm4857_get_mode(struct snd_kcontrol *kcontrol,
 static int lm4857_set_mode(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_value *ucontrol)
 {
-        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct lm4857 *lm4857 = snd_soc_codec_get_drvdata(codec);
         uint8_t value = ucontrol->value.integer.value[0];