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-rw-r--r--sound/soc/kirkwood/kirkwood-i2s.c9
-rw-r--r--sound/soc/kirkwood/kirkwood.h3
2 files changed, 12 insertions, 0 deletions
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 0fdc7db7a469..d80ea1ff7b0e 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);
diff --git a/sound/soc/kirkwood/kirkwood.h b/sound/soc/kirkwood/kirkwood.h
index b6e4f68d71dd..bb6e6a5648c9 100644
--- a/sound/soc/kirkwood/kirkwood.h
+++ b/sound/soc/kirkwood/kirkwood.h
@@ -49,6 +49,9 @@
#define KIRKWOOD_PLAYCTL_BURST_32 (1<<11)
#define KIRKWOOD_PLAYCTL_PAUSE (1<<9)
#define KIRKWOOD_PLAYCTL_SPDIF_MUTE (1<<8)
+#define KIRKWOOD_PLAYCTL_MONO_MASK (3<<5)
+#define KIRKWOOD_PLAYCTL_MONO_BOTH (3<<5)
+#define KIRKWOOD_PLAYCTL_MONO_OFF (0<<5)
#define KIRKWOOD_PLAYCTL_I2S_MUTE (1<<7)
#define KIRKWOOD_PLAYCTL_SPDIF_EN (1<<4)
#define KIRKWOOD_PLAYCTL_I2S_EN (1<<3)