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| author |   Shengjiu Wang <shengjiu.wang@nxp.com> | 2020-07-07 16:54:25 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-07-10 15:29:48 +0100 |
| commit | 055b082156704b85a059770359d6cdedfb24831d (patch) | |
| tree | 6fd3d9120016efd5473f1ed58b8900badf15ef8d /sound/soc/fsl/fsl_spdif.c | |
| parent | Merge series "ASoC: mediatek: mt8183-da7219: support machine driver for rt1015" from Tzung-Bi Shih <tzungbi@google.com>: (diff) | |
| download | linux-dev-055b082156704b85a059770359d6cdedfb24831d.tar.xz linux-dev-055b082156704b85a059770359d6cdedfb24831d.zip | |
ASoC: fsl_spdif: Clear the validity bit for TX
In IEC958 spec, "The validity bit is logical "0" if the
information in the main data field is reliable, and it
is logical "1" if it is not".
The default value of "ValCtrl" is zero, which means
"Outgoing Validity always set", then all the data is not
reliable, then some spdif sink device will drop the data.
So set "ValCtrl" to 1, that is to clear "Outgoing Validity"
in default.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1594112066-31297-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_spdif.c')
| -rw-r--r-- | sound/soc/fsl/fsl_spdif.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index 9fb95c6ee7ba..576370dc6e70 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -985,6 +985,10 @@ static int fsl_spdif_dai_probe(struct snd_soc_dai *dai) snd_soc_add_dai_controls(dai, fsl_spdif_ctrls, ARRAY_SIZE(fsl_spdif_ctrls)); + /*Clear the val bit for Tx*/ + regmap_update_bits(spdif_private->regmap, REG_SPDIF_SCR, + SCR_VAL_MASK, SCR_VAL_CLEAR); + return 0; } |