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@xxxxxxxxxxx>
Index: sound-2.6/sound/soc/kirkwood/kirkwood-i2s.c
===================================================================
--- sound-2.6.orig/sound/soc/kirkwood/kirkwood-i2s.c 2010-07-10 21:53:35.000000000 +0200
+++ sound-2.6/sound/soc/kirkwood/kirkwood-i2s.c 2010-07-11 13:01:55.000000000 +0200
@@ -153,6 +153,15 @@
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);
Index: sound-2.6/sound/soc/kirkwood/kirkwood.h
===================================================================
--- sound-2.6.orig/sound/soc/kirkwood/kirkwood.h 2010-07-11 12:08:30.000000000 +0200
+++ sound-2.6/sound/soc/kirkwood/kirkwood.h 2010-07-11 12:10:56.000000000 +0200
@@ -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)
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