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Date: Tue, 10 Aug 2021 16:37:51 +0100 From: Richard Fitzgerald <rf@...nsource.cirrus.com> To: <broonie@...nel.org> CC: <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>, <linux-kernel@...r.kernel.org>, Richard Fitzgerald <rf@...nsource.cirrus.com> Subject: [PATCH 04/12] ASoC: cs42l42: Don't reconfigure the PLL while it is running cs42l42_pcm_hw_params() must only configure the PLL if this is the first stream to become active, otherwise it will be overwriting the registers while the PLL is running. Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com> Fixes: 43fc357199f9 ("ASoC: cs42l42: Set clock source for both ways of stream") --- sound/soc/codecs/cs42l42.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 5dc3a30272a4..1893d3694570 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -884,7 +884,11 @@ static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, break; } - return cs42l42_pll_config(component); + /* Configure the PLL if this is the first active stream */ + if (!cs42l42->stream_use) + return cs42l42_pll_config(component); + else + return 0; } static int cs42l42_set_sysclk(struct snd_soc_dai *dai, -- 2.11.0
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