[PATCH 4.9 72/86] ASoC: rt5651: Fix regcache sync errors on resume

Greg Kroah-Hartman
2018-03-16T15:23:35Z

From: Hans de Goede <hdegoede@redhat.com>

commit 2d30e9494f1ea320aaaad0cff9ddd92c87eac355 upstream.

The ALC5651 does not like multi-write accesses, avoid them. This fixes:

rt5651 i2c-10EC5651:00: Unable to sync registers 0x27-0x28. -121

Errors on resume (and all registers after the registers in the error not
being synced).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
sound/soc/codecs/rt5651.c | 1 +
1 file changed, 1 insertion(+)

--- a/sound/soc/codecs/rt5651.c
+++ b/sound/soc/codecs/rt5651.c
@@ -1736,6 +1736,7 @@ static const struct regmap_config rt5651
.num_reg_defaults = ARRAY_SIZE(rt5651_reg),
.ranges = rt5651_ranges,
.num_ranges = ARRAY_SIZE(rt5651_ranges),
+ .use_single_rw = true,
};

#if defined(CONFIG_OF)