Commit 0be43050 authored Nov 25, 2008 by Jarkko Nikula Committed by Mark Brown Nov 25, 2008

ASoC: OMAP: Apply channel constrains to N810 machine driver



Prepare for upcoming McBSP DAI update adding support for mono links by
restricting number of channels to 2 in N810. This is due tlv320aic3x which
claims channels_min = 1 and playing pure mono audio over I2S would cause
it to be played only from left channel if both cpu and codec DAI's claim to
support mono.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

parent fde22f27

sound/soc/omap/n810.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -70,9 +70,13 @@ static void n810_ext_control(struct snd_soc_codec *codec)

		static int n810_startup(struct snd_pcm_substream *substream)
		{
		struct snd_pcm_runtime *runtime = substream->runtime;
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_codec *codec = rtd->socdev->codec;

		snd_pcm_hw_constraint_minmax(runtime,
		SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);

		n810_ext_control(codec);
		return clk_enable(sys_clkout2);
		}

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