OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ASoC: tegra: add runtime PM to resume functions 

Tegra HW needs clocks etc. active when touching registers. Make sure they
are active during resume, by calling pm_runtime_get_sync() before touching
HW.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Stephen Warren 2013-06-04 12:58:14 -06:00 committed by Mark Brown
parent 5c5b08286f
commit 249e66c326
2 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/soc/tegra/tegra30_ahub.c
View File

@ -640,8 +640,12 @@ static int tegra30_ahub_resume(struct device *dev)
{
int ret;
ret = pm_runtime_get_sync(dev);
if (ret < 0)
return ret;
ret = regcache_sync(ahub->regmap_ahub);
ret |= regcache_sync(ahub->regmap_apbif);
pm_runtime_put(dev);
return ret;
}

9
sound/soc/tegra/tegra30_i2s.c
View File

@ -527,8 +527,15 @@ static int tegra30_i2s_suspend(struct device *dev)
static int tegra30_i2s_resume(struct device *dev)
{
struct tegra30_i2s *i2s = dev_get_drvdata(dev);
int ret;
return regcache_sync(i2s->regmap);
ret = pm_runtime_get_sync(dev);
if (ret < 0)
return ret;
ret = regcache_sync(i2s->regmap);
pm_runtime_put(dev);
return ret;
}
#endif