From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
alsa-devel@alsa-project.org, Mark Brown <broonie@kernel.org>,
Yu-Hsuan Hsu <yuhsuan@chromium.org>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Subject: [alsa-devel] [PATCH AUTOSEL 4.14 104/130] ASoC: Intel: kbl_rt5663_rt5514_max98927: Add dmic format constraint
Date: Tue, 10 Dec 2019 17:02:35 -0500 [thread overview]
Message-ID: <20191210220301.13262-104-sashal@kernel.org> (raw)
In-Reply-To: <20191210220301.13262-1-sashal@kernel.org>
From: Yu-Hsuan Hsu <yuhsuan@chromium.org>
[ Upstream commit e2db787bdcb4f2722ecf410168f0583764634e45 ]
On KBL platform, the microphone is attached to external codec(rt5514)
instead of PCH. However, TDM slot between PCH and codec is 16 bits only.
In order to avoid setting wrong format, we should add a constraint to
force to use 16 bits format forever.
Signed-off-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190923162940.199580-1-yuhsuan@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
index 41cb1fefbd427..405196283688c 100644
--- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
+++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
@@ -422,6 +422,9 @@ static int kabylake_dmic_startup(struct snd_pcm_substream *substream)
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
dmic_constraints);
+ runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+ snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
}
--
2.20.1
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prev parent reply other threads:[~2019-12-10 22:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191210220301.13262-1-sashal@kernel.org>
2019-12-10 22:01 ` [alsa-devel] [PATCH AUTOSEL 4.14 060/130] ALSA: hda - Fix pending unsol events at shutdown Sasha Levin
2019-12-10 22:02 ` [alsa-devel] [PATCH AUTOSEL 4.14 080/130] ALSA: timer: Limit max amount of slave instances Sasha Levin
2019-12-10 22:02 ` [alsa-devel] [PATCH AUTOSEL 4.14 103/130] ASoC: rt5677: Mark reg RT5677_PWR_ANLG2 as volatile Sasha Levin
2019-12-10 22:02 ` Sasha Levin [this message]
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