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ASoC: mcasp: Fix implicit BLCK divider setting

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The implicit BLCK divider setting was broken by "ASoC: mcasp: don't
override bclk divider if it was provided by the machine"-patch. After
the BCLK divider is implicitly set for the first time the
mcasp->bclk_div gets a non zero value and the implicit setting is
"turned off".

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Jyri Sarha 2014-08-06 16:47:16 +03:00 committed by Mark Brown
parent ae34a78c43
commit 8813543ecb
1 changed files with 11 additions and 3 deletions
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14
sound/soc/davinci/davinci-mcasp.c
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@ -403,7 +403,8 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
return ret;
}
static int davinci_mcasp_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div)
static int __davinci_mcasp_set_clkdiv(struct snd_soc_dai *dai, int div_id,
int div, bool explicit)
{
struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai);
@ -420,7 +421,8 @@ static int davinci_mcasp_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div
ACLKXDIV(div - 1), ACLKXDIV_MASK);
mcasp_mod_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG,
ACLKRDIV(div - 1), ACLKRDIV_MASK);
mcasp->bclk_div = div;
if (explicit)
mcasp->bclk_div = div;
break;
case 2: /* BCLK/LRCLK ratio */
@ -434,6 +436,12 @@ static int davinci_mcasp_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div
return 0;
}
static int davinci_mcasp_set_clkdiv(struct snd_soc_dai *dai, int div_id,
int div)
{
return __davinci_mcasp_set_clkdiv(dai, div_id, div, 1);
}
static int davinci_mcasp_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
@ -738,7 +746,7 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
"Inaccurate BCLK: %u Hz / %u != %u Hz\n",
mcasp->sysclk_freq, div, bclk_freq);
}
davinci_mcasp_set_clkdiv(cpu_dai, 1, div);
__davinci_mcasp_set_clkdiv(cpu_dai, 1, div, 0);
}
ret = mcasp_common_hw_param(mcasp, substream->stream,