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| author | Sugar Zhang <sugar.zhang@rock-chips.com> | 2016-09-07 09:27:33 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-09-12 22:00:45 +0300 |
| commit | f0447f6cbb202e1be8244d15aee390a96d65e490 (patch) | |
| tree | 55d4ff29bdf50f6a419f964ef8e667fd309201a9 | |
| parent | f506513ad80dc7ca0b4bfe26a228a801c08d1db7 (diff) | |
| download | linux-f0447f6cbb202e1be8244d15aee390a96d65e490.tar.xz | |
ASoC: rockchip: i2s: restore register during runtime_suspend/resume cycle
when step into runtime_suspend, i2s pd will be disabled and loss state.
so need to restore register when runtime_resume.
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/rockchip/rockchip_i2s.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index 652e8c5ea166..974915cb4c4f 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -57,6 +57,7 @@ static int i2s_runtime_suspend(struct device *dev) { struct rk_i2s_dev *i2s = dev_get_drvdata(dev); + regcache_cache_only(i2s->regmap, true); clk_disable_unprepare(i2s->mclk); return 0; @@ -73,7 +74,14 @@ static int i2s_runtime_resume(struct device *dev) return ret; } - return 0; + regcache_cache_only(i2s->regmap, false); + regcache_mark_dirty(i2s->regmap); + + ret = regcache_sync(i2s->regmap); + if (ret) + clk_disable_unprepare(i2s->mclk); + + return ret; } static inline struct rk_i2s_dev *to_info(struct snd_soc_dai *dai) |