This is a note to let you know that I've just added the patch titled
drm/i915/dp: Flush any outstanding work to turn the VDD off
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-dp-flush-any-outstanding-work-to-turn-the-vdd-off.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 17038de5f16569a25343cf68668f3b657eafb00e Mon Sep 17 00:00:00 2001
From: Chris Wilson <[email protected]>
Date: Mon, 16 Apr 2012 22:43:42 +0100
Subject: drm/i915/dp: Flush any outstanding work to turn the VDD off
From: Chris Wilson <[email protected]>
commit 17038de5f16569a25343cf68668f3b657eafb00e upstream.
As we may kick off a delayed workqueue task to switch of the VDD lines, we
need to complete that task prior to turning off the panel (which itself
depends upon VDD being off).
v2: Don't cancel the outstanding work as this may trigger a deadlock
Signed-off-by: Chris Wilson <[email protected]>
Cc: Keith Packard <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/i915/intel_dp.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1149,6 +1149,7 @@ static void ironlake_edp_panel_off(struc
DRM_DEBUG_KMS("Turn eDP power off\n");
WARN(intel_dp->want_panel_vdd, "Cannot turn power off while VDD is
on\n");
+ ironlake_panel_vdd_off_sync(intel_dp); /* finish any pending work */
pp = ironlake_get_pp_control(dev_priv);
pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET |
EDP_BLC_ENABLE);
Patches currently in stable-queue which might be from [email protected]
are
queue-3.4/drm-i915-enable-vdd-when-switching-off-the-edp-panel.patch
queue-3.4/drm-i915-dp-flush-any-outstanding-work-to-turn-the-vdd-off.patch
queue-3.4/drm-i915-wait-for-a-vblank-to-pass-after-tv-detect.patch
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