Commit 6706a197 authored by Vinod Koul's avatar Vinod Koul Committed by Mark Brown
Browse files

ALSA: hdac: add snd_hdac_ext_bus_link_power_up_all 



We have an API for powering down all links, we need a similar one
for powering up links, so add for power up as well

Signed-off-by: default avatarJayachandran B <jayachandran.b@intel.com>
Signed-off-by: default avatarSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Reviewed-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent cf8fe58b

include/sound/hdaudio_ext.h

+1 −0
Original line number Diff line number Diff line
@@ -147,6 +147,7 @@ struct hdac_ext_link { 


int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);

int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);

int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);

int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);

void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,

				 int stream);

sound/hda/ext/hdac_ext_controller.c

+21 −0
Original line number Diff line number Diff line
@@ -287,6 +287,27 @@ int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link) 
}

EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down);



/**

 * snd_hdac_ext_bus_link_power_up_all -power up all hda link

 * @ebus: HD-audio extended bus

 */

int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus)

{

	struct hdac_ext_link *hlink = NULL;

	int ret;



	list_for_each_entry(hlink, &ebus->hlink_list, list) {

		snd_hdac_updatel(hlink->ml_addr,

				AZX_REG_ML_LCTL, 0, AZX_MLCTL_SPA);

		ret = check_hdac_link_power_active(hlink, true);

		if (ret < 0)

			return ret;

	}



	return 0;

}

EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_up_all);



/**

 * snd_hdac_ext_bus_link_power_down_all -power down all hda link

 * @ebus: HD-audio extended bus

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