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Subject[PATCH 16/25] ASoC: sun8i-codec: Enforce symmetric DAI parameters
Date
The AIFs have a single register controlling DAI parameters in both
directions, including BCLK/LRCK divisor word size. The DAIs produce only
noise or silence if any of these parameters is wrong. Therefore, we need
to enforce symmetry for these parameters, so starting a new substream
will not break an existing substream.

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
sound/soc/sunxi/sun8i-codec.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c
index 0a53dc0c34d0..f21274530a0e 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -420,16 +420,19 @@ static struct snd_soc_dai_driver sun8i_codec_dais[] = {
/* playback capabilities */
.playback = {
.stream_name = "AIF1 Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
+ .symmetric_rates = true,
+ .symmetric_channels = true,
+ .symmetric_samplebits = true,
},
};

static const char *const sun8i_aif_stereo_mux_enum_values[] = {
"Stereo", "Reverse Stereo", "Sum Mono", "Mix Mono"
};

static SOC_ENUM_DOUBLE_DECL(sun8i_aif1_ad0_stereo_mux_enum,
--
2.26.2
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