From: Matt Flax flatmax@flatmax.org
[ Upstream commit f3df05c805983427319eddc2411a2105ee1757cf ]
The cs4265_readable_register function stopped short of the maximum register.
An example bug is taken from : https://github.com/Audio-Injector/Ultra/issues/25
Where alsactl store fails with : Cannot read control '2,0,0,C Data Buffer,0': Input/output error
This patch fixes the bug by setting the cs4265 to have readable registers up to the maximum hardware register CS4265_MAX_REGISTER.
Signed-off-by: Matt Flax flatmax@flatmax.org Reviewed-by: Charles Keepax ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/cs4265.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c index 407554175282..68d18aca397d 100644 --- a/sound/soc/codecs/cs4265.c +++ b/sound/soc/codecs/cs4265.c @@ -60,7 +60,7 @@ static const struct reg_default cs4265_reg_defaults[] = { static bool cs4265_readable_register(struct device *dev, unsigned int reg) { switch (reg) { - case CS4265_CHIP_ID ... CS4265_SPDIF_CTL2: + case CS4265_CHIP_ID ... CS4265_MAX_REGISTER: return true; default: return false;