ASoC: cs42l42: Regmap must use_single_read/write

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[ Upstream commit 0fad605fb0 ]

cs42l42 does not support standard burst transfers so the use_single_read
and use_single_write flags must be set in the regmap config.

Because of this bug, the patch:

commit 0a0eb567e1 ("ASoC: cs42l42: Minor error paths fixups")

broke cs42l42 probe() because without the use_single_* flags it causes
regmap to issue a burst read.

However, the missing use_single_* could cause problems anyway because the
regmap cache can attempt burst transfers if these flags are not set.

Fixes: 2c394ca796 ("ASoC: Add support for CS42L42 codec")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210511132855.27159-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Richard Fitzgerald 2021-05-11 14:28:55 +01:00 • committed by Greg Kroah-Hartman

parent 211c5d16e3

commit 95cfa6c030

1 changed files with 3 additions and 0 deletions

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sound/soc/codecs/cs42l42.c

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