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Date: Wed, 30 Sep 2015 16:24:53 -0700
From: Rick Mann <rmann@...encyzero.com>
To: lgirdwood@...il.com, broonie@...nel.org
Cc: perex@...ex.cz, tiwai@...e.com, peter.ujfalusi@...com,
jarkko.nikula@...mer.com, rmann@...encyzero.com,
alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Prevent writing reserved registers on tlv320aic3104 CODECs
The current code writes a set of registers that are reserved on the tlc320aic3104. The change skips those registers for that IC.
Signed-off-by: Rick Mann <rmann@...encyzero.com>
---
sound/soc/codecs/tlv320aic3x.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index f1c9fffcd3a6..8d893e94e78d 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -1531,14 +1531,17 @@ static int aic3x_init(struct snd_soc_codec *codec)
snd_soc_write(codec, PGAL_2_LLOPM_VOL, DEFAULT_VOL);
snd_soc_write(codec, PGAR_2_RLOPM_VOL, DEFAULT_VOL);
- /* Line2 to HP Bypass default volume, disconnect from Output Mixer */
- snd_soc_write(codec, LINE2L_2_HPLOUT_VOL, DEFAULT_VOL);
- snd_soc_write(codec, LINE2R_2_HPROUT_VOL, DEFAULT_VOL);
- snd_soc_write(codec, LINE2L_2_HPLCOM_VOL, DEFAULT_VOL);
- snd_soc_write(codec, LINE2R_2_HPRCOM_VOL, DEFAULT_VOL);
- /* Line2 Line Out default volume, disconnect from Output Mixer */
- snd_soc_write(codec, LINE2L_2_LLOPM_VOL, DEFAULT_VOL);
- snd_soc_write(codec, LINE2R_2_RLOPM_VOL, DEFAULT_VOL);
+ /* On tlv320aic3104, these registers are reserved and must not be written */
+ if (aic3x->model != AIC3X_MODEL_3104) {
+ /* Line2 to HP Bypass default volume, disconnect from Output Mixer */
+ snd_soc_write(codec, LINE2L_2_HPLOUT_VOL, DEFAULT_VOL);
+ snd_soc_write(codec, LINE2R_2_HPROUT_VOL, DEFAULT_VOL);
+ snd_soc_write(codec, LINE2L_2_HPLCOM_VOL, DEFAULT_VOL);
+ snd_soc_write(codec, LINE2R_2_HPRCOM_VOL, DEFAULT_VOL);
+ /* Line2 Line Out default volume, disconnect from Output Mixer */
+ snd_soc_write(codec, LINE2L_2_LLOPM_VOL, DEFAULT_VOL);
+ snd_soc_write(codec, LINE2R_2_RLOPM_VOL, DEFAULT_VOL);
+ }
switch (aic3x->model) {
case AIC3X_MODEL_3X:
--
1.9.1
--
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