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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2017-05-08 02:28:13 +0000
committerMark Brown <broonie@kernel.org>2017-05-14 18:38:54 +0900
commitec185f95401e36f398b39706705f10d7fe7ff058 (patch)
treec31bd394650bf5ebb51cc3232d52936892de5934 /sound
parent2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff)
ASoC: ak4613: disable asymmetric audio interface format
Asymmetric audio interface formats exist in ak4613 by same register settings. Capture Playback 24bit LEFT_J 16bit RIGHT_J 24bit LEFT_J 20bit RIGHT_J 24bit LEFT_J 24bit RIGHT_J 24bit LEFT_J 24bit LEFT_J 24bit I2S 24bit I2S These asymmetric formats makes driver / behavior difficult. It is not HW limitation, but SW limitation. To makes code reading easy, this patch removes asymmetric format support. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/ak4613.c18
1 files changed, 4 insertions, 14 deletions
diff --git a/sound/soc/codecs/ak4613.c b/sound/soc/codecs/ak4613.c
index b2dfddead227..557ac16d43e2 100644
--- a/sound/soc/codecs/ak4613.c
+++ b/sound/soc/codecs/ak4613.c
@@ -139,9 +139,7 @@ static const struct reg_default ak4613_reg[] = {
#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
static const struct ak4613_interface ak4613_iface[] = {
/* capture */ /* playback */
- [0] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(16, RIGHT_J) },
- [1] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(20, RIGHT_J) },
- [2] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, RIGHT_J) },
+ /* [0] - [2] are not supported */
[3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
[4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
};
@@ -262,11 +260,9 @@ static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
switch (fmt) {
- case SND_SOC_DAIFMT_RIGHT_J:
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_I2S:
priv->fmt = fmt;
-
break;
default:
return -EINVAL;
@@ -286,13 +282,8 @@ static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
if (fmts->fmt != fmt)
return false;
- if (fmt == SND_SOC_DAIFMT_RIGHT_J) {
- if (fmts->width != width)
- return false;
- } else {
- if (fmts->width < width)
- return false;
- }
+ if (fmts->width != width)
+ return false;
return true;
}
@@ -420,8 +411,7 @@ static const struct snd_soc_dai_ops ak4613_dai_ops = {
SNDRV_PCM_RATE_96000 |\
SNDRV_PCM_RATE_176400 |\
SNDRV_PCM_RATE_192000)
-#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S16_LE |\
- SNDRV_PCM_FMTBIT_S24_LE)
+#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_driver ak4613_dai = {
.name = "ak4613-hifi",