[alsa-devel] [RFC PATCH 11/34] ASoC: sun8i-codec: Enforce parameter symmetry

Samuel Holland samuel at sholland.org
Mon Feb 17 07:42:27 CET 2020


Each of the codec's DAIs has a single set of parameters for its clock,
channels, and word size. If both capture and playback are active on a
single DAI, they must use compatible parameters. Set the symmetric_*
flags in the DAI driver to enforce this.

Signed-off-by: Samuel Holland <samuel at 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 bf12f5199e96..3d5ed2f4575a 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -534,6 +534,9 @@ static struct snd_soc_dai_driver sun8i_codec_dai = {
 	},
 	/* pcm operations */
 	.ops = &sun8i_codec_dai_ops,
+	.symmetric_rates = 1,
+	.symmetric_channels = 1,
+	.symmetric_samplebits = 1,
 };
 
 static const struct snd_soc_component_driver sun8i_soc_component = {
-- 
2.24.1



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