From 6706a19747eb693ff35ce140f5cbee66dcfec0c4 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 18 Dec 2015 15:12:02 +0530 Subject: 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: Jayachandran B Signed-off-by: Subhransu S. Prusty Signed-off-by: Vinod Koul Reviewed-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/hda/ext/hdac_ext_controller.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'sound/hda') diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c index 1a55a781270d..548cc1e4114b 100644 --- a/sound/hda/ext/hdac_ext_controller.c +++ b/sound/hda/ext/hdac_ext_controller.c @@ -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 -- cgit v1.2.3