[ 34/79] ALSA: hda/via - Disable broken dynamic power control

From: Greg Kroah-Hartman
Date: Tue Jun 11 2013 - 16:15:49 EST

3.9-stable review patch. If anyone has any objections, please let me know.


From: Takashi Iwai <tiwai@xxxxxxx>

commit 087c2e3b4e062573dbbc8a50b9208992e3768dcf upstream.

Since the transition to the generic parser, the actual routes used
there don't match always with the assumed static paths in some
set_widgets_power_state callbacks. This results in the wrong power
setup in the end. As a temporary workaround, we need to disable the
calls together with the non-functional dynamic power control enum.

Reported-by: Alex Riesen <raa.lkml@xxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

sound/pci/hda/patch_via.c | 5 +++++
1 file changed, 5 insertions(+)

--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -231,9 +231,14 @@ static void vt1708_update_hp_work(struct

static void set_widgets_power_state(struct hda_codec *codec)
+#if 0 /* FIXME: the assumed connections don't match always with the
+ * actual routes by the generic parser, so better to disable
+ * the control for safety.
+ */
struct via_spec *spec = codec->spec;
if (spec->set_widgets_power_state)

static void update_power_state(struct hda_codec *codec, hda_nid_t nid,

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