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authorDaniel Mack <daniel@caiaq.de>2010-02-02 18:45:27 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-02-02 11:41:53 +0000
commit026384d614b827f368834860c9b623ce08439b7e (patch)
treeae6ad9346a8ff72c8590e4405abf535390b48504 /sound
parent59cdd9bc057a54384a7838231dd2672a89dff2ac (diff)
downloadop-kernel-dev-026384d614b827f368834860c9b623ce08439b7e.zip
op-kernel-dev-026384d614b827f368834860c9b623ce08439b7e.tar.gz
ASoC: fix PXA SSP port resume
Unconditionally save the register states when suspending and restore them again at resume time. Register contents were not preserved over suspend, and hence the driver takes false assumptions about them. The clock must be enabled to access the register block. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/pxa/pxa-ssp.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 3bd7712..e69397f 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -135,10 +135,11 @@ static int pxa_ssp_suspend(struct snd_soc_dai *cpu_dai)
struct ssp_priv *priv = cpu_dai->private_data;
if (!cpu_dai->active)
- return 0;
+ clk_enable(priv->dev.ssp->clk);
ssp_save_state(&priv->dev, &priv->state);
clk_disable(priv->dev.ssp->clk);
+
return 0;
}
@@ -146,12 +147,13 @@ static int pxa_ssp_resume(struct snd_soc_dai *cpu_dai)
{
struct ssp_priv *priv = cpu_dai->private_data;
- if (!cpu_dai->active)
- return 0;
-
clk_enable(priv->dev.ssp->clk);
ssp_restore_state(&priv->dev, &priv->state);
- ssp_enable(&priv->dev);
+
+ if (cpu_dai->active)
+ ssp_enable(&priv->dev);
+ else
+ clk_disable(priv->dev.ssp->clk);
return 0;
}
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