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authorLiam Girdwood <liam.r.girdwood@linux.intel.com>2014-05-16 17:55:20 +0400
committerMark Brown <broonie@linaro.org>2014-05-16 22:56:23 +0400
commit25b4ab430f8e166c9b63f4db28e7e812d5a59396 (patch)
tree54e18d4f01b0b25ef48e3ff048d32ac3c8f9c3ce
parent729af1ce6c8796808079b5ef44b302108374264a (diff)
downloadlinux-25b4ab430f8e166c9b63f4db28e7e812d5a59396.tar.xz
ASoC: max98090: Fix reset at resume time
Reset needs to wait 20ms before other codec IO is performed. This wait was not being performed. Fix this by making sure the reset register is not restored with the cache, but use the manual reset method in resume with the wait. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
-rw-r--r--sound/soc/codecs/max98090.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 7980784d1e33..be86094817eb 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -255,6 +255,7 @@ static struct reg_default max98090_reg[] = {
static bool max98090_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
+ case M98090_REG_SOFTWARE_RESET:
case M98090_REG_DEVICE_STATUS:
case M98090_REG_JACK_STATUS:
case M98090_REG_REVISION_ID:
@@ -2374,6 +2375,8 @@ static int max98090_runtime_resume(struct device *dev)
regcache_cache_only(max98090->regmap, false);
+ max98090_reset(max98090);
+
regcache_sync(max98090->regmap);
return 0;