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authorHyungwon Hwang <hyungwon.hwang7@gmail.com>2016-04-13 09:27:39 +0900
committerSasha Levin <sasha.levin@oracle.com>2016-04-18 08:51:10 -0400
commit00e1d655592109ea61e6a1316539ae8ce9cc3813 (patch)
treedb90603193b65dd5bda09d4267137b295a503fb7
parenta9e524e20d53b67328c1ba0301c19efae260a0a0 (diff)
ALSA: hda - Fix regression of monitor_present flag in eld proc file
[ Upstream commit 023d8218ec0dfc30e11d4ec54f640e8f127d1fbe ] The commit [bd48128539ab: ALSA: hda - Fix forgotten HDMI monitor_present update] covered the missing update of monitor_present flag, but this caused a regression for devices without the i915 eld notifier. Since the old code supposed that pin_eld->monitor_present was updated by the caller side, the hdmi_present_sense_via_verbs() doesn't update the temporary eld->monitor_present but only pin_eld->monitor_present, which is now overridden in update_eld(). The fix is to update pin_eld->monitor_present as well before calling update_eld(). Note that this may still leave monitor_present flag in an inconsistent state when the driver repolls, but this is at least the old behavior. More proper fix will follow in the later patch. Fixes: bd48128539ab ('ALSA: hda - Fix forgotten HDMI monitor_present update') Signed-off-by: Hyungwon Hwang <hyungwon.hwang7@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
-rw-r--r--sound/pci/hda/patch_hdmi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index b320120f5d11..193426e223c9 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1601,6 +1601,8 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
mutex_lock(&per_pin->lock);
pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
+ eld->monitor_present = pin_eld->monitor_present;
+
if (pin_eld->monitor_present)
eld->eld_valid = !!(present & AC_PINSENSE_ELDV);
else