[PATCH 4.4 39/50] Revert "drm/radeon/pm: adjust display configuration after powerstate"

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

------------------

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;


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