linux-kernel - [PATCH] ASoC: bdw-rt5677: enable runtime channel merge

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Date:   Wed,  2 Oct 2019 17:04:32 +0800
From:   Brent Lu <brent.lu@...el.com>
To:     alsa-devel@...a-project.org
Cc:     Cezary Rojewski <cezary.rojewski@...el.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Brent Lu <brent.lu@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: bdw-rt5677: enable runtime channel merge

In the DAI link "Capture PCM", the FE DAI "Capture Pin" supports 4-channel
capture but the BE DAI supports only 2-channel capture. To fix the channel
mismatch, we need to enable the runtime channel merge for this DAI link.

Signed-off-by: Brent Lu <brent.lu@...el.com>
---
 sound/soc/intel/boards/bdw-rt5677.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/intel/boards/bdw-rt5677.c b/sound/soc/intel/boards/bdw-rt5677.c
index 4a4d335..8d07038 100644
--- a/sound/soc/intel/boards/bdw-rt5677.c
+++ b/sound/soc/intel/boards/bdw-rt5677.c
@@ -273,6 +273,7 @@ static struct snd_soc_dai_link bdw_rt5677_dais[] = {
 		},
 		.dpcm_capture = 1,
 		.dpcm_playback = 1,
+		.dpcm_merged_chan = 1,
 		SND_SOC_DAILINK_REG(fe, dummy, platform),
 	},
 
-- 
2.7.4