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Commit 249e66c3 authored by Stephen Warren's avatar Stephen Warren Committed by Mark Brown
Browse files

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: default avatarStephen Warren <swarren@nvidia.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 5c5b0828

sound/soc/tegra/tegra30_ahub.c

+4 −0
Original line number Diff line number Diff line
@@ -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;

}

sound/soc/tegra/tegra30_i2s.c

+8 −1
Original line number Diff line number Diff line
@@ -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