Signed-off-by: Ryan Lee <ryans.lee@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/max98927.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index 3ab8220..5517251 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -803,6 +803,31 @@ static int max98927_probe(struct snd_soc_codec *codec)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int max98927_suspend(struct device *dev)
+{
+ struct max98927_priv *max98927 = dev_get_drvdata(dev);
+
+ regcache_cache_only(max98927->regmap, true);
+ regcache_mark_dirty(max98927->regmap);
+ return 0;
+}
+static int max98927_resume(struct device *dev)
+{
+ struct max98927_priv *max98927 = dev_get_drvdata(dev);
+
+ regmap_write(max98927->regmap,
+ MAX98927_R0100_SOFT_RESET, MAX98927_SOFT_RESET);
+ regcache_cache_only(max98927->regmap, false);
+ regcache_sync(max98927->regmap);
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops max98927_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(max98927_suspend, max98927_resume)
+};
+
static const struct snd_soc_codec_driver soc_codec_dev_max98927 = {
.probe = max98927_probe,
.component_driver = {
@@ -936,7 +961,7 @@ static int max98927_i2c_remove(struct i2c_client *client)
.name = "max98927",
.of_match_table = of_match_ptr(max98927_of_match),
.acpi_match_table = ACPI_PTR(max98927_acpi_match),
- .pm = NULL,
+ .pm = &max98927_pm,
},
.probe = max98927_i2c_probe,
.remove = max98927_i2c_remove,
--
1.9.1
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