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| author | Marek Belisko <marek.belisko@gmail.com> | 2013-05-03 07:37:36 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-05-03 09:29:59 +0100 |
| commit | df4a4eece78b484ea3c29aa1f9e9a03fcbb56c8b (patch) | |
| tree | 11b826a2a9a474249fc13abe351fc05889fb1072 /sound | |
| parent | 81ee6833bc6ccd0c64d2f527775a3ded7aa9bfb4 (diff) | |
| download | blackbird-op-linux-df4a4eece78b484ea3c29aa1f9e9a03fcbb56c8b.tar.gz blackbird-op-linux-df4a4eece78b484ea3c29aa1f9e9a03fcbb56c8b.zip | |
ASoC: McASP: Fix receive clock polarity in DAIFMT_NB_NF mode.
According documentation bit ACLKRPOL is set to 0 (receiver samples data
on falling edge) and when set to 1 (receiver samples data on rising edge).
I2S data are always sampled on falling edge and valid during rising edge
of bit clock. So in case of capture data transmitter sample data on falling
edge and macsp must read then on rising edge.
Signed-off-by: Marek Belisko <marek.belisko@streamunlimited.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/davinci/davinci-mcasp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index 9acb72c5f65c..660d00e7f6f2 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -566,7 +566,7 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai, mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL); mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL); - mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL); + mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL); mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL); break; |
