From 0be43050d4da08295b985cb23347ecc1003cb8d6 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Tue, 25 Nov 2008 12:45:08 +0200 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- sound/soc/omap/n810.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c index d216b4f..18e2062 100644 --- a/sound/soc/omap/n810.c +++ b/sound/soc/omap/n810.c @@ -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); } -- 2.7.4