diff options
| author | Sugar Zhang <sugar.zhang@rock-chips.com> | 2016-09-07 14:30:21 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-09-12 20:00:46 +0100 |
| commit | 3628c6987fb45d719cd963805bbba9f15017290e (patch) | |
| tree | 8bf6e41e7b6cffc88b522dcbb13832e0b16c58f8 /sound/soc/rockchip | |
| parent | f0447f6cbb202e1be8244d15aee390a96d65e490 (diff) | |
ASoC: rockchip: spdif: restore register during runtime_suspend/resume cycle
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>
Diffstat (limited to 'sound/soc/rockchip')
| -rw-r--r-- | sound/soc/rockchip/rockchip_spdif.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/soc/rockchip/rockchip_spdif.c b/sound/soc/rockchip/rockchip_spdif.c index 4ca265737eda..fa8101d1e16f 100644 --- a/sound/soc/rockchip/rockchip_spdif.c +++ b/sound/soc/rockchip/rockchip_spdif.c @@ -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, |