ASoC: dapm: Add a helper to get the CODEC for DAPM kcontrol
We use the same 3 lines to get the CODEC for a kcontrol in a quite a few places.
This patch puts them into a common helper function. Having this encapsulated in
a helper function will also make it more easier to eventually change the data
layout of the kcontrol's private data.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index ba832b7..eee2a01 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1437,9 +1437,7 @@
static int wm8994_put_class_w(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
- struct snd_soc_dapm_widget *w = wlist->widgets[0];
- struct snd_soc_codec *codec = w->codec;
+ struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
int ret;
ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);