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ASoC: rockchip: spdif: restore register during runtime_suspend/resume cycle

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when step into runtime_suspend, spdif 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>
This commit is contained in:
Sugar Zhang 2016-09-07 14:30:21 +08:00 committed by Mark Brown
parent f0447f6cbb
commit 3628c6987f
1 changed files with 11 additions and 1 deletions
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12
sound/soc/rockchip/rockchip_spdif.c
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@ -65,6 +65,7 @@ static int __maybe_unused rk_spdif_runtime_suspend(struct device *dev)
{
struct rk_spdif_dev *spdif = dev_get_drvdata(dev);
regcache_cache_only(spdif->regmap, true);
clk_disable_unprepare(spdif->mclk);
clk_disable_unprepare(spdif->hclk);
@ -88,7 +89,16 @@ static int __maybe_unused rk_spdif_runtime_resume(struct device *dev)
return ret;
}
return 0;
regcache_cache_only(spdif->regmap, false);
regcache_mark_dirty(spdif->regmap);
ret = regcache_sync(spdif->regmap);
if (ret) {
clk_disable_unprepare(spdif->mclk);
clk_disable_unprepare(spdif->hclk);
}
return ret;
}
static int rk_spdif_hw_params(struct snd_pcm_substream *substream,