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-rw-r--r--sound/soc/codecs/nau8825.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 7fc7b4e3f444..c1b87c5800b1 100644
--- 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,