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| author | Puyou Lu <puyou.lu@gmail.com> | 2020-07-02 10:30:56 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-09 19:55:28 +0100 |
| commit | 01283d56f0ea0040b64dc785542f3ad3fb8b3e68 (patch) | |
| tree | 7161e9fd0cc6b9d77b321fd031953f6af019824c /sound | |
| parent | 574ea5c80eb18edd0d93864985650efec63347c0 (diff) | |
| download | lwn-01283d56f0ea0040b64dc785542f3ad3fb8b3e68.tar.gz lwn-01283d56f0ea0040b64dc785542f3ad3fb8b3e68.zip | |
ASoC: wm8974: remove unsupported clock mode
In DSP_A mode, BIT7 of IFACE should bit 0 according to datasheet (ie.
inverted frame clock is not support in this mode).
Signed-off-by: Puyou Lu <puyou.lu@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/1593657056-4989-1-git-send-email-puyou.lu@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm8974.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c index 764bf93fb58a..7cfc89602fc3 100644 --- a/sound/soc/codecs/wm8974.c +++ b/sound/soc/codecs/wm8974.c @@ -474,6 +474,10 @@ static int wm8974_set_dai_fmt(struct snd_soc_dai *codec_dai, iface |= 0x0008; break; case SND_SOC_DAIFMT_DSP_A: + if ((fmt & SND_SOC_DAIFMT_INV_MASK) == SND_SOC_DAIFMT_IB_IF || + (fmt & SND_SOC_DAIFMT_INV_MASK) == SND_SOC_DAIFMT_NB_IF) { + return -EINVAL; + } iface |= 0x00018; break; default: |