diff options
| author |   Ryan Lee <ryans.lee@maximintegrated.com> | 2017-08-28 16:30:59 -0700 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2017-08-31 12:45:08 +0100 |
| commit | f81991ddd001981bbe4ea0d25f88a4f95fb018be (patch) | |
| tree | db44ad6df20819b600d96fb95275be0b7335af56 /sound/soc | |
| parent | ASoC: max98927: Modified chip default register values (diff) | |
| download | linux-dev-f81991ddd001981bbe4ea0d25f88a4f95fb018be.tar.xz linux-dev-f81991ddd001981bbe4ea0d25f88a4f95fb018be.zip | |
ASoC: max98927: Added PM suspend and resume function
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/max98927.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c index 5b853604120a..caf5340ca6bb 100644 --- a/sound/soc/codecs/max98927.c +++ b/sound/soc/codecs/max98927.c @@ -701,6 +701,31 @@ 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 = { @@ -834,7 +859,7 @@ static struct i2c_driver max98927_i2c_driver = { .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, |