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ASoC: fsl_esai: Fix incorrect condition within ratio range check for FP

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The range here from 1 to 16 is confined to FP divider only while the
sck_div indicates if the calculation contains PSR and PM dividers. So
for the case using PSR and PM since the sck_div is true, the range of
ratio would simply become bigger than 16.

So this patch fixes the condition here and adds one line comments to
make the purpose here clear.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Nicolin Chen 2014-05-06 16:55:59 +08:00 committed by Mark Brown
parent c9eaa447e7
commit 89e47f62cf
1 changed files with 2 additions and 1 deletions
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sound/soc/fsl/fsl_esai.c
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@ -307,7 +307,8 @@ static int fsl_esai_set_bclk(struct snd_soc_dai *dai, bool tx, u32 freq)
return -EINVAL;
}
if (esai_priv->sck_div[tx] && (ratio > 16 || ratio == 0)) {
/* The ratio should be contented by FP alone if bypassing PM and PSR */
if (!esai_priv->sck_div[tx] && (ratio > 16 || ratio == 0)) {
dev_err(dai->dev, "the ratio is out of range (1 ~ 16)\n");
return -EINVAL;
}