This is a note to let you know that I've just added the patch titled
Revert "drm/radeon/pm: adjust display configuration after powerstate"
to the 4.4-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:
revert-drm-radeon-pm-adjust-display-configuration-after-powerstate.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d74e766e1916d0e09b86e4b5b9d0f819628fd546 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Tue, 8 Mar 2016 11:31:00 -0500
Subject: Revert "drm/radeon/pm: adjust display configuration after powerstate"
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit d74e766e1916d0e09b86e4b5b9d0f819628fd546 upstream.
This reverts commit 39d4275058baf53e89203407bf3841ff2c74fa32.
This caused a regression on some older hardware.
bug:
https://bugzilla.kernel.org/show_bug.cgi?id=113891
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_pm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1075,6 +1075,8 @@ force:
/* update display watermarks based on new power state */
radeon_bandwidth_update(rdev);
+ /* update displays */
+ radeon_dpm_display_configuration_changed(rdev);
/* wait for the rings to drain */
for (i = 0; i < RADEON_NUM_RINGS; i++) {
@@ -1091,9 +1093,6 @@ force:
radeon_dpm_post_set_power_state(rdev);
- /* update displays */
- radeon_dpm_display_configuration_changed(rdev);
-
rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
rdev->pm.dpm.single_display = single_display;
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-4.4/drm-amdgpu-fix-error-handling-in-amdgpu_flip_work_func.patch
queue-4.4/revert-drm-radeon-pm-adjust-display-configuration-after-powerstate.patch
queue-4.4/drm-radeon-fix-error-handling-in-radeon_flip_work_func.patch
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