ALSA: hda/generic - Don't override power_filter when power_save_node is set

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@suse.de>

1 files changed, 2 insertions, 1 deletions

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);