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| author | Juergen Borleis <jbe@pengutronix.de> | 2015-07-03 12:39:36 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-07-07 14:40:02 +0100 |
| commit | ebac95a9208e6b5f134df8518df1bfd1b3fee354 (patch) | |
| tree | f612d9c922509d9877b13125450b8f23c4673467 /sound | |
| parent | d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff) | |
| download | linux-ebac95a9208e6b5f134df8518df1bfd1b3fee354.tar.gz linux-ebac95a9208e6b5f134df8518df1bfd1b3fee354.tar.bz2 linux-ebac95a9208e6b5f134df8518df1bfd1b3fee354.zip | |
ASoC: fsl-ssi: Fix bitclock calculation for master mode
According to the datasheet 'pm', 'psr' and 'div2' should never be all 0.
Since commit 541b03ad6cfe ("ASoC: fsl_ssi: Fix the incorrect limitation of
the bit clock rate") this can happen, because for some bitclock rates
'pm' = 0 seems to be a valid choice but does not work due to hardware
restrictions. This results into a bad hardware behaviour (slow audio for
example). Feature tested on a i.MX25.
Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index c7647e066cfd..c0b940e2019f 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -633,7 +633,7 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream, sub *= 100000; do_div(sub, freq); - if (sub < savesub) { + if (sub < savesub && !(i == 0 && psr == 0 && div2 == 0)) { baudrate = tmprate; savesub = sub; pm = i; |