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authorarnaud.patard@rtp-net.org <arnaud.patard@rtp-net.org>2010-07-11 23:28:31 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-07-13 12:37:09 +0100
commitdfe4c93627c4a1a7fb7e30b15e31f4ccf3ca60f5 (patch)
tree2570b4c9c193bd4857e0984345dd57bd6258ff47 /sound/soc/kirkwood/kirkwood-i2s.c
parentccad7b44ccdc8341c1449bc5b864b42b197f8c2e (diff)
downloadop-kernel-dev-dfe4c93627c4a1a7fb7e30b15e31f4ccf3ca60f5.zip
op-kernel-dev-dfe4c93627c4a1a7fb7e30b15e31f4ccf3ca60f5.tar.gz
ASoC: Fix kirkwood i2s mono playback
Kirkwood controller needs to be informed if the audio stream is mono or not. Failing to do so will result in playing at the wrong speed. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/kirkwood/kirkwood-i2s.c')
-rw-r--r--sound/soc/kirkwood/kirkwood-i2s.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 0fdc7db..d80ea1f 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -153,6 +153,15 @@ static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream,
default:
return -EINVAL;
}
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ value &= ~KIRKWOOD_PLAYCTL_MONO_MASK;
+ if (params_channels(params) == 1)
+ value |= KIRKWOOD_PLAYCTL_MONO_BOTH;
+ else
+ value |= KIRKWOOD_PLAYCTL_MONO_OFF;
+ }
+
writel(i2s_value, priv->io+i2s_reg);
writel(value, priv->io+reg);
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