diff options
Diffstat (limited to 'sound/hda/hdac_device.c')
| -rw-r--r-- | sound/hda/hdac_device.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 55c7d086b9dd..cdee7103f649 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -552,6 +552,21 @@ void snd_hdac_power_down_pm(struct hdac_device *codec) EXPORT_SYMBOL_GPL(snd_hdac_power_down_pm); #endif +/* + * Enable/disable the link power for a codec. + */ +int snd_hdac_link_power(struct hdac_device *codec, bool enable) +{ + if (!codec->link_power_control) + return 0; + + if (codec->bus->ops->link_power) + return codec->bus->ops->link_power(codec->bus, enable); + else + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_hdac_link_power); + /* codec vendor labels */ struct hda_vendor_id { unsigned int id; |