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Commit ba2772ed authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Implement BCLK rate selection for WM8580 



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: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent c5607d8e

sound/soc/codecs/wm8580.c

+6 −1
Original line number Diff line number Diff line
@@ -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;