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ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID

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[ Upstream commit c0372bc873dd29f325ee908351e0bd5b08d4d608 ]

RT5682_DEVICE_ID is a volatile register, we can not read it in cache
only mode.

Fixes: 03f6fc6de919 ("ASoC: rt5682: Add the soundwire support")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bard Liao 2021-06-07 17:22:37 -05:00 committed by Greg Kroah-Hartman
parent 696cfb2567
commit 92a30a90d6
1 changed files with 5 additions and 5 deletions
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10
sound/soc/codecs/rt5682-sdw.c
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@ -400,6 +400,11 @@ static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
pm_runtime_get_noresume(&slave->dev);
if (rt5682->first_hw_init) {
regcache_cache_only(rt5682->regmap, false);
regcache_cache_bypass(rt5682->regmap, true);
}
while (loop > 0) {
regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
if (val == DEVICE_ID)
@ -413,11 +418,6 @@ static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
return -ENODEV;
}
if (rt5682->first_hw_init) {
regcache_cache_only(rt5682->regmap, false);
regcache_cache_bypass(rt5682->regmap, true);
}
rt5682_calibrate(rt5682);
if (rt5682->first_hw_init) {