From: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>
DAPM event handler is set to filter out invalid MUX settings
for certain outputs.
Earpiece:
- 0 = Off
- 1 = DACL1
- 2 = DACL2
- 3 = *** Invalid ***
- 4 = DACR1
PreDriveL/R:
- 0 = Off/Off
- 1 = DACL1/DACR1
- 2 = DACL2/DACR2
- 3 = *** Invalid/Invalid ***
- 4 = DACR2/DACL2
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/twl4030.c | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 4293ec7..9d10783 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -190,6 +190,30 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)
}
+static int outmixer_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ int ret = 0;
+ int val;
+
+ switch (e->reg) {
+ case TWL4030_REG_PREDL_CTL:
+ case TWL4030_REG_PREDR_CTL:
+ case TWL4030_REG_EAR_CTL:
+ val = w->value >> e->shift_l;
+ if (val == 3) {
+ printk(KERN_WARNING
+ "Invalid MUX setting for register 0x%02x (%d)\n",
+ e->reg, val);
+ ret = -1;
+ }
+ break;
+ }
+
+ return ret;
+}
+
/*
* Some of the gain controls in TWL (mostly those which are associated with
* the outputs) are implemented in an interesting way:
--
1.5.6.5
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