ASoC: tas2562: Fix event generation for volume control

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ALSA put() operations should return 0 for noop updates and 1 if the
value of the control changed, this is used by the ALSA core to generate
events to userspace.  tas2562_volume_control_put() does not implement
this, it just writes whatever value userspace wrote to the device and
returns 0 regardless of what the previous value was.  Fix this by
suppressing writes if the value is unchanged and returning 1 if the
writes succeed.

Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20260715-asoc-tas2562-put-retval-v1-2-97bf467c924e@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

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Mark Brown 2026-07-15 21:18:10 +01:00

parent 8fb41964f7

commit 9a9269dbbf

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sound/soc/codecs/tas2562.c

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