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| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2015-09-16 14:59:41 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-09-16 22:00:03 +0200 |
| commit | 002b083b8da96fd6c546fab2608803e7ce47627d (patch) | |
| tree | 3ad74242e56dd632965d88e8ddbbf69dddcd0d4f /sound/soc/codecs/arizona.c | |
| parent | ASoC: arizona: Add default cases for event switches (diff) | |
| download | linux-002b083b8da96fd6c546fab2608803e7ce47627d.tar.xz linux-002b083b8da96fd6c546fab2608803e7ce47627d.zip | |
ASoC: arizona: Add utility function to check if an input is analog
We will occasionally require to take different action based on if an
input is analog or digital so add a helper function to return if an
input is analog.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/arizona.c')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 1bc19f1e5e70..ac21b85ff75f 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -691,6 +691,15 @@ static void arizona_in_set_vu(struct snd_soc_codec *codec, int ena) ARIZONA_IN_VU, val); } +bool arizona_input_analog(struct snd_soc_codec *codec, int shift) +{ + unsigned int reg = ARIZONA_IN1L_CONTROL + ((shift / 2) * 8); + unsigned int val = snd_soc_read(codec, reg); + + return !(val & ARIZONA_IN1_MODE_MASK); +} +EXPORT_SYMBOL_GPL(arizona_input_analog); + int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { |