Commit 2206dc94 authored Apr 09, 2015 by Takashi Iwai

ALSA: hda/generic - Check power state cap at updating the widget power



The new widget power-saving tries to apply the power change no matter
whether the node has a power cap or not.  It's bad (although most of
codecs chip just ignore it).  Check the capability properly
beforehand.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 9efe2731

sound/pci/hda/hda_generic.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -832,6 +832,8 @@ static hda_nid_t path_power_update(struct hda_codec *codec,

		for (i = 0; i < path->depth; i++) {
		nid = path->path[i];
		if (!(get_wcaps(codec, nid) & AC_WCAP_POWER))
		continue;
		if (nid == codec->core.afg)
		continue;
		if (!allow_powerdown \|\| is_active_nid_for_any(codec, nid))