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ASoC: fsi: fsi_set_master_clk() was called from fsi_hw_xxx() only
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Current FSI driver is using fsi_set_master_clk() if it needs system clock.
But this function was called from
fsi_hw_shutdown()/fsi_dai_trigger()/fsi_resume() without a sense of unity.
Because of this, sound playback after suspend failed sometimes.
To keep consistency, fsi_master_clk() was called from
fsi_hw_start/stop() only now.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Kuninori Morimoto authored and Mark Brown committed Oct 29, 2012
1 parent 1ddd828 commit ddeb2d7
Showing 1 changed file with 8 additions and 15 deletions.
23 changes: 8 additions & 15 deletions sound/soc/sh/fsi.c
Original file line number Diff line number Diff line change
Expand Up @@ -1333,12 +1333,17 @@ static int fsi_hw_startup(struct fsi_priv *fsi,
/* fifo init */
fsi_fifo_init(fsi, io, dev);

/* start master clock */
if (fsi_is_clk_master(fsi))
fsi_set_master_clk(dev, fsi, fsi->rate, 1);

return 0;
}

static void fsi_hw_shutdown(struct fsi_priv *fsi,
struct device *dev)
{
/* stop master clock */
if (fsi_is_clk_master(fsi))
fsi_set_master_clk(dev, fsi, fsi->rate, 0);
}
Expand Down Expand Up @@ -1461,19 +1466,11 @@ static int fsi_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct fsi_priv *fsi = fsi_get_priv(substream);
long rate = params_rate(params);
int ret;

if (!fsi_is_clk_master(fsi))
return 0;

ret = fsi_set_master_clk(dai->dev, fsi, rate, 1);
if (ret < 0)
return ret;

fsi->rate = rate;
if (fsi_is_clk_master(fsi))
fsi->rate = params_rate(params);

return ret;
return 0;
}

static const struct snd_soc_dai_ops fsi_dai_ops = {
Expand Down Expand Up @@ -1770,10 +1767,6 @@ static void __fsi_resume(struct fsi_priv *fsi,
return;

fsi_hw_startup(fsi, io, dev);

if (fsi_is_clk_master(fsi) && fsi->rate)
fsi_set_master_clk(dev, fsi, fsi->rate, 1);

fsi_stream_start(fsi, io);
}

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