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Diffstat (limited to 'sound/soc/tegra/tegra30_ahub.c')
-rw-r--r--sound/soc/tegra/tegra30_ahub.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index 23e592f453fa..d554d46d08b5 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -627,9 +627,34 @@ static int tegra30_ahub_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int tegra30_ahub_suspend(struct device *dev)
+{
+ regcache_mark_dirty(ahub->regmap_ahub);
+ regcache_mark_dirty(ahub->regmap_apbif);
+
+ return 0;
+}
+
+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;
+}
+#endif
+
static const struct dev_pm_ops tegra30_ahub_pm_ops = {
SET_RUNTIME_PM_OPS(tegra30_ahub_runtime_suspend,
tegra30_ahub_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(tegra30_ahub_suspend, tegra30_ahub_resume)
};
static struct platform_driver tegra30_ahub_driver = {