[PATCH 1/4] ALSA: hda/via - Disable broken dynamic power control
From: Takashi Iwai
Date: Fri May 31 2013 - 07:54:10 EST
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>
Cc: <stable@xxxxxxxxxxxxxxx> [v3.9]
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/hda/patch_via.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index e0dadcf..75fdb51 100644
--- 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 hda_codec *codec)
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)
spec->set_widgets_power_state(codec);
+#endif
}
static void update_power_state(struct hda_codec *codec, hda_nid_t nid,
--
1.8.3
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