summaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorMarkus Pargmann <mpa@pengutronix.de>2014-01-27 16:03:05 +0400
committerMark Brown <broonie@linaro.org>2014-01-27 22:13:40 +0400
commitb44aa40f875b06b1986a18251d601ee1832c4476 (patch)
tree17c1992a43fb4c674f6558e5df3d58127da1da53 /sound
parent7552f34a790069a008bd3e2ab4c0954b30c2f63b (diff)
downloadlinux-b44aa40f875b06b1986a18251d601ee1832c4476.tar.xz
ASoC: tlv320aic32x4: Fix mono playback
Playback of a mono stream should output the same stream on both channels. At the moment only the left analog signal is valid, the right one is just noise. This patch maps the left digital channel onto both DACs when receiving a mono stream. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/tlv320aic32x4.c18
-rw-r--r--sound/soc/codecs/tlv320aic32x4.h1
2 files changed, 12 insertions, 7 deletions
diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index 385dec16eb8a..ee9ad05f9137 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -450,6 +450,17 @@ static int aic32x4_hw_params(struct snd_pcm_substream *substream,
}
snd_soc_write(codec, AIC32X4_IFACE1, data);
+ if (params_channels(params) == 1) {
+ data = AIC32X4_RDAC2LCHN | AIC32X4_LDAC2LCHN;
+ } else {
+ if (aic32x4->swapdacs)
+ data = AIC32X4_RDAC2LCHN | AIC32X4_LDAC2RCHN;
+ else
+ data = AIC32X4_LDAC2LCHN | AIC32X4_RDAC2RCHN;
+ }
+ snd_soc_update_bits(codec, AIC32X4_DACSETUP, AIC32X4_DAC_CHAN_MASK,
+ data);
+
return 0;
}
@@ -606,13 +617,6 @@ static int aic32x4_probe(struct snd_soc_codec *codec)
}
snd_soc_write(codec, AIC32X4_CMMODE, tmp_reg);
- /* Do DACs need to be swapped? */
- if (aic32x4->swapdacs) {
- snd_soc_write(codec, AIC32X4_DACSETUP, AIC32X4_LDAC2RCHN | AIC32X4_RDAC2LCHN);
- } else {
- snd_soc_write(codec, AIC32X4_DACSETUP, AIC32X4_LDAC2LCHN | AIC32X4_RDAC2RCHN);
- }
-
/* Mic PGA routing */
if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K) {
snd_soc_write(codec, AIC32X4_LMICPGANIN, AIC32X4_LMICPGANIN_IN2R_10K);
diff --git a/sound/soc/codecs/tlv320aic32x4.h b/sound/soc/codecs/tlv320aic32x4.h
index 35774223fd91..83795af8c75f 100644
--- a/sound/soc/codecs/tlv320aic32x4.h
+++ b/sound/soc/codecs/tlv320aic32x4.h
@@ -138,6 +138,7 @@
#define AIC32X4_LDAC2RCHN (0x02 << 4)
#define AIC32X4_LDAC2LCHN (0x01 << 4)
#define AIC32X4_RDAC2RCHN (0x01 << 2)
+#define AIC32X4_DAC_CHAN_MASK 0x3c
#define AIC32X4_SSTEP2WCLK 0x01
#define AIC32X4_MUTEON 0x0C