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authorMatthias Reichl <hias@horus.com>2016-04-25 13:39:38 +0000
committerMark Brown <broonie@kernel.org>2016-04-25 17:39:05 +0100
commita34b027dca5ea840fbc84121db66488375acfdea (patch)
treecc46d5c017caf38f8cecace0e0627b48b536ae62 /sound
parentf55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff)
downloadlinux-a34b027dca5ea840fbc84121db66488375acfdea.tar.bz2
ASoC: bcm2835: add 24bit support
This adds 24 bit support to the I2S driver of the BCM2835 Code ported from bcm2708-i2s driver in Raspberry Pi tree. Signed-off-by: Florian Meier <florian.meier@koalo.de> Signed-off-by: Matthias Reichl <hias@horus.com> Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/bcm/bcm2835-i2s.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/bcm/bcm2835-i2s.c b/sound/soc/bcm/bcm2835-i2s.c
index 1c1f2210387b..d2663e79ece1 100644
--- a/sound/soc/bcm/bcm2835-i2s.c
+++ b/sound/soc/bcm/bcm2835-i2s.c
@@ -259,6 +259,9 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream,
case SNDRV_PCM_FORMAT_S16_LE:
data_length = 16;
break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ data_length = 24;
+ break;
case SNDRV_PCM_FORMAT_S32_LE:
data_length = 32;
break;
@@ -279,7 +282,7 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream,
/* Setup the frame format */
format = BCM2835_I2S_CHEN;
- if (data_length > 24)
+ if (data_length >= 24)
format |= BCM2835_I2S_CHWEX;
format |= BCM2835_I2S_CHWID((data_length-8)&0xf);
@@ -570,6 +573,7 @@ static struct snd_soc_dai_driver bcm2835_i2s_dai = {
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
| SNDRV_PCM_FMTBIT_S32_LE
},
.capture = {
@@ -577,6 +581,7 @@ static struct snd_soc_dai_driver bcm2835_i2s_dai = {
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
| SNDRV_PCM_FMTBIT_S32_LE
},
.ops = &bcm2835_i2s_dai_ops,