[PATCH 3.8 123/152] ASoC: wm8962: Turn on regcache_cache_only before disabling regulator

[Kamal Mostafa]

3.8.13.14 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicolin Chen <b42378 at freescale.com>

commit 50bfcf2df2fadf77e143d6099150e6fa7ef4d78c upstream.

It's safer to turn on regcache_cache_only before disabling regulator since
the driver will turn off the regcache_cache_only after enabling regulator.

If we remain cache_only false, some command like 'amixer cset' would get
failure if being run before wm8962_resume().

Signed-off-by: Nicolin Chen <b42378 at freescale.com>
Signed-off-by: Mark Brown <broonie at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 sound/soc/codecs/wm8962.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 1b5bda8..df54650 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3690,6 +3690,8 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 	if (ret < 0)
 		goto err_enable;
 
+	regcache_cache_only(wm8962->regmap, true);
+
 	/* The drivers should power up as needed */
 	regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
 
-- 
1.8.3.2