[PATCH 4.19 32/73] ALSA: hda/realtek - Set default power save node to 0
From: Greg Kroah-Hartman
Date: Fri Jun 07 2019 - 12:00:18 EST
From: Kailang Yang <kailang@xxxxxxxxxxx>
commit 317d9313925cd8388304286c0d3c8dda7f060a2d upstream.
I measured power consumption between power_save_node=1 and power_save_node=0.
It's almost the same.
Codec will enter to runtime suspend and suspend.
That pin also will enter to D3. Don't need to enter to D3 by single pin.
So, Disable power_save_node as default. It will avoid more issues.
Windows Driver also has not this option at runtime PM.
Signed-off-by: Kailang Yang <kailang@xxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
sound/pci/hda/patch_realtek.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
@@ -7558,7 +7558,7 @@ static int patch_alc269(struct hda_codec
spec = codec->spec;
spec->gen.shared_mic_vref_pin = 0x18;
- codec->power_save_node = 1;
+ codec->power_save_node = 0;
codec->patch_ops.suspend = alc269_suspend;