[ Upstream commit f0f2338a9cfaf71db895fa989ea7234e8a9b471d ]
The CS4270 does not by default increment the register address on consecutive writes. During normal operation it doesn't matter as all register accesses are done individually. At resume time after suspend, however, the regcache code gathers the biggest possible block of registers to sync and sends them one on one go.
To fix this, set the INCR bit in all cases.
Signed-off-by: Daniel Mack daniel@zonque.org Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/cs4270.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c index 84f86745c30e9..828bc615a1908 100644 --- a/sound/soc/codecs/cs4270.c +++ b/sound/soc/codecs/cs4270.c @@ -643,6 +643,7 @@ static const struct regmap_config cs4270_regmap = { .reg_defaults = cs4270_reg_defaults, .num_reg_defaults = ARRAY_SIZE(cs4270_reg_defaults), .cache_type = REGCACHE_RBTREE, + .write_flag_mask = CS4270_I2C_INCR,
.readable_reg = cs4270_reg_is_readable, .volatile_reg = cs4270_reg_is_volatile,