Merge tag 'edac_for_4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

[cascardo/linux.git] / sound / soc / codecs / nau8825.c

diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 7fc7b4e..c1b87c5 100644 (file)
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -1271,6 +1271,36 @@ static int nau8825_i2c_remove(struct i2c_client *client)
        return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int nau8825_suspend(struct device *dev)
+{
+       struct i2c_client *client = to_i2c_client(dev);
+       struct nau8825 *nau8825 = dev_get_drvdata(dev);
+
+       disable_irq(client->irq);
+       regcache_cache_only(nau8825->regmap, true);
+       regcache_mark_dirty(nau8825->regmap);
+
+       return 0;
+}
+
+static int nau8825_resume(struct device *dev)
+{
+       struct i2c_client *client = to_i2c_client(dev);
+       struct nau8825 *nau8825 = dev_get_drvdata(dev);
+
+       regcache_cache_only(nau8825->regmap, false);
+       regcache_sync(nau8825->regmap);
+       enable_irq(client->irq);
+
+       return 0;
+}
+#endif
+
+static const struct dev_pm_ops nau8825_pm = {
+       SET_SYSTEM_SLEEP_PM_OPS(nau8825_suspend, nau8825_resume)
+};
+
 static const struct i2c_device_id nau8825_i2c_ids[] = {
        { "nau8825", 0 },
        { }
@@ -1297,6 +1327,7 @@ static struct i2c_driver nau8825_driver = {
                .name = "nau8825",
                .of_match_table = of_match_ptr(nau8825_of_ids),
                .acpi_match_table = ACPI_PTR(nau8825_acpi_match),
+               .pm = &nau8825_pm,
        },
        .probe = nau8825_i2c_probe,
        .remove = nau8825_i2c_remove,