ASoC: rt5651: Fix regcache sync errors on resume

BugLink: http://bugs.launchpad.net/bugs/1756978
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>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c
index 831b297978a485ff58fe4eea38373c6392cab7ae..45a73049cf648770421bfc4795e7dbc773f35981 100644 (file)
--- a/sound/soc/codecs/rt5651.c
+++ b/sound/soc/codecs/rt5651.c
@@ -1722,6 +1722,7 @@ static const struct regmap_config rt5651_regmap = {
        .num_reg_defaults = ARRAY_SIZE(rt5651_reg),
        .ranges = rt5651_ranges,
        .num_ranges = ARRAY_SIZE(rt5651_ranges),
+       .use_single_rw = true,
 };
 
 #if defined(CONFIG_OF)