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| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2020-09-03 07:53:47 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-09-03 15:47:37 +0200 |
| commit | f4c4b1bb2f5a7f034f039c302b56f82344a6dc8c (patch) | |
| tree | efea67b52be3a9986ed6971e5784328b92558840 /sound/soc/fsl/fsl_sai.h | |
| parent | ASoC: fsl_sai: Support multiple data channel enable bits (diff) | |
| download | linux-f4c4b1bb2f5a7f034f039c302b56f82344a6dc8c.tar.xz linux-f4c4b1bb2f5a7f034f039c302b56f82344a6dc8c.zip | |
ASoC: fsl_sai: Set SAI Channel Mode to Output Mode
Transmit data pins will output zero when slots are masked or channels
are disabled. In CHMOD TDM mode, transmit data pins are tri-stated when
slots are masked or channels are disabled. When data pins are tri-stated,
there is noise on some channels when FS clock value is high and data is
read while fsclk is transitioning from high to low.
Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1599112427-22038-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_sai.h')
| -rw-r--r-- | sound/soc/fsl/fsl_sai.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h index 5f630be74853..736a437450c8 100644 --- a/sound/soc/fsl/fsl_sai.h +++ b/sound/soc/fsl/fsl_sai.h @@ -119,6 +119,8 @@ #define FSL_SAI_CR4_FRSZ_MASK (0x1f << 16) #define FSL_SAI_CR4_SYWD(x) (((x) - 1) << 8) #define FSL_SAI_CR4_SYWD_MASK (0x1f << 8) +#define FSL_SAI_CR4_CHMOD BIT(5) +#define FSL_SAI_CR4_CHMOD_MASK BIT(5) #define FSL_SAI_CR4_MF BIT(4) #define FSL_SAI_CR4_FSE BIT(3) #define FSL_SAI_CR4_FSP BIT(1) |