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| author |  Daniel Mack <zonque@gmail.com>
| 2012-10-04 15:08:41 +0200 |
|---|---|---|
| committer |  Mark Brown <broonie@opensource.wolfsonmicro.com>
| 2012-10-15 11:24:47 +0900 |
| commit | 5b66aa2d0cafd8093e0b8959d32e694c92390b8c (patch) | |
| tree | 827af1cbbf3b20babe0d70b2015c770c929b2d7d /sound/soc/davinci/davinci-evm.c | |
| parent | ASoC: McASP: add support for clock dividers (diff) | |
| download | linux-5b66aa2d0cafd8093e0b8959d32e694c92390b8c.tar.gz linux-5b66aa2d0cafd8093e0b8959d32e694c92390b8c.tar.bz2 linux-5b66aa2d0cafd8093e0b8959d32e694c92390b8c.zip | |
ASoC: McASP: make AHCLK direction configurable
Add a .set_sysclk function to pass the direction of the clock down to
the driver. Only enable AHCLKX in the PDIR register when the CPU is
driving the clock.
This also removes the modification of the AHCLKXE/AHCLKRE bits in the
hw_params callback, and users must set the desired configuration using
snd_soc_dai_set_sysclk(), which this patch also does for the only user
in mainline (davinci-evm).
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/davinci/davinci-evm.c')
| -rw-r--r-- | sound/soc/davinci/davinci-evm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c index 6fac5af13298..d55e6477bff0 100644 --- a/sound/soc/davinci/davinci-evm.c +++ b/sound/soc/davinci/davinci-evm.c @@ -71,6 +71,11 @@ static int evm_hw_params(struct snd_pcm_substream *substream, if (ret < 0) return ret; + /* set the CPU system clock */ + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT); + if (ret < 0) + return ret; + return 0; } |