ASoC: cs42l42: Regmap must use_single_read/write
authorRichard Fitzgerald <rf@opensource.cirrus.com>
Tue, 11 May 2021 13:28:55 +0000 (14:28 +0100)
committerMark Brown <broonie@kernel.org>
Tue, 11 May 2021 15:01:29 +0000 (16:01 +0100)
commit0fad605fb0bdc00d8ad78696300ff2fbdee6e048
tree59ac0a19722be5431a0505a883205820e7cb1e43
parentf0353e1f53f92f7b3da91e6669f5d58ee222ebe8
ASoC: cs42l42: Regmap must use_single_read/write

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 0a0eb567e1d4 ("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: 2c394ca79604 ("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>
sound/soc/codecs/cs42l42.c