Commit 3ba191ce authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Mark Brown
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ASoC: OMAP: Add DSP_A mode support for mcbsp 



DSP_A mode is similar to the DSP_B, but the MSB is delayed with
one bclk (appears after the FS pulse and not under it).

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: default avatarJarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent c29b206f

sound/soc/omap/omap-mcbsp.c

+8 −0
Original line number Diff line number Diff line
@@ -287,6 +287,7 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream, 
		regs->srgr2	|= FPER(wlen * channels - 1);

		regs->srgr1	|= FWID(wlen - 1);

		break;

	case SND_SOC_DAIFMT_DSP_A:

	case SND_SOC_DAIFMT_DSP_B:

		regs->srgr2	|= FPER(wlen * channels - 1);

		regs->srgr1	|= FWID(wlen * channels - 2);
@@ -330,6 +331,13 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai, 
		regs->rcr2	|= RDATDLY(1);

		regs->xcr2	|= XDATDLY(1);

		break;

	case SND_SOC_DAIFMT_DSP_A:

		/* 1-bit data delay */

		regs->rcr2      |= RDATDLY(1);

		regs->xcr2      |= XDATDLY(1);

		/* Invert FS polarity configuration */

		temp_fmt ^= SND_SOC_DAIFMT_NB_IF;

		break;

	case SND_SOC_DAIFMT_DSP_B:

		/* 0-bit data delay */

		regs->rcr2      |= RDATDLY(0);