From dfe4c93627c4a1a7fb7e30b15e31f4ccf3ca60f5 Mon Sep 17 00:00:00 2001 From: "arnaud.patard@rtp-net.org" Date: Sun, 11 Jul 2010 23:28:31 +0200 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- sound/soc/kirkwood/kirkwood-i2s.c | 9 +++++++++ sound/soc/kirkwood/kirkwood.h | 3 +++ 2 files changed, 12 insertions(+) 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) -- 2.30.2