[alsa-devel] [PATCH 4/5] ALSA: hda/generic - Don't override power_filter when power_save_node is set

[Takashi Iwai]

Currently the generic parser sets codec->power_filter when
power_save_node flag is set.  But this overrides the existing filter
that has been already set by the codec driver, thus it looses some
features.  Instead, set the default power_filter only when it's not
set yet.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_generic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index f0475a19fad7..3d2597b7037b 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -4918,7 +4918,8 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
 	parse_digital(codec);
 
 	if (spec->power_down_unused || codec->power_save_node)
-		codec->power_filter = snd_hda_gen_path_power_filter;
+		if (!codec->power_filter)
+			codec->power_filter = snd_hda_gen_path_power_filter;
 
 	if (!spec->no_analog && spec->beep_nid) {
 		err = snd_hda_attach_beep_device(codec, spec->beep_nid);
-- 
2.3.5