AcoSail/kernel_optimize_test
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ASoC: Implement BCLK rate selection for WM8580

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Drive a minimal supported number of clocks required for the current
bit format in master mode. In slave mode this setting has no effect.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2010-08-13 19:36:56 +01:00
parent c5607d8e7a
commit ba2772edbe
1 changed files with 6 additions and 1 deletions
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7
sound/soc/codecs/wm8580.c
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@ -486,14 +486,18 @@ static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
/* bit size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
paifa |= 0x8;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
paifa |= 0x10;
paifb |= WM8580_AIF_LENGTH_20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
paifa |= 0x10;
paifb |= WM8580_AIF_LENGTH_24;
break;
case SNDRV_PCM_FORMAT_S32_LE:
paifa |= 0x10;
paifb |= WM8580_AIF_LENGTH_24;
break;
default:
@ -515,7 +519,8 @@ static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
wm8580_sysclk_ratios[i], wm8580->sysclk[dai->driver->id]);
snd_soc_update_bits(codec, WM8580_PAIF1 + dai->driver->id,
WM8580_AIF_RATE_MASK, paifa);
WM8580_AIF_RATE_MASK | WM8580_AIF_BCLKSEL_MASK,
paifa);
snd_soc_update_bits(codec, WM8580_PAIF3 + dai->driver->id,
WM8580_AIF_LENGTH_MASK, paifb);
return 0;