From: Adam Thomson Adam.Thomson.Opensource@diasemi.com
[ Upstream commit ac29a8f41740186aee601de99c729530e37ca77c ]
For TDM mode, the I2S data out line can be shared between mutliple codecs. In this scenario, only the active codec should be using the line, and all others should be high impedance. However, currently in the driver this configuration isn't set when capture is inactive, and the line remains driven.
This patch updates the AIF_OUT widget to set the DAI output pin of the device as high impedance when not in use.
Signed-off-by: Adam Thomson Adam.Thomson.Opensource@diasemi.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@verizon.com --- sound/soc/codecs/da7218.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/da7218.c b/sound/soc/codecs/da7218.c index c69e97654fc6..d256ebf9e309 100644 --- a/sound/soc/codecs/da7218.c +++ b/sound/soc/codecs/da7218.c @@ -1634,7 +1634,8 @@ static const struct snd_soc_dapm_widget da7218_dapm_widgets[] = { SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
/* DAI */ - SND_SOC_DAPM_AIF_OUT("DAIOUT", "Capture", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("DAIOUT", "Capture", 0, DA7218_DAI_TDM_CTRL, + DA7218_DAI_OE_SHIFT, DA7218_NO_INVERT), SND_SOC_DAPM_AIF_IN("DAIIN", "Playback", 0, SND_SOC_NOPM, 0, 0),
/* Output Mixers */