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 --- sound/soc/codecs/arizona.c | 9 +++++++++ sound/soc/codecs/arizona.h | 2 ++ 2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 1bc19f1..ac21b85 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) { diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index ada0a41..7b68d05 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -294,4 +294,6 @@ extern int arizona_init_dai(struct arizona_priv *priv, int dai); int arizona_set_output_mode(struct snd_soc_codec *codec, int output, bool diff);
+extern bool arizona_input_analog(struct snd_soc_codec *codec, int shift); + #endif