[added to the 3.18 stable tree] Revert "drm/radeon/pm: adjust display configuration after powerstate"

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From: Alex Deucher <alexander.deucher@xxxxxxx>

This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit d74e766e1916d0e09b86e4b5b9d0f819628fd546 ]

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>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
 drivers/gpu/drm/radeon/radeon_pm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index d5ea5c1..ab782e3 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -936,6 +936,8 @@ 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++) {
@@ -952,9 +954,6 @@ 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;
-- 
2.5.0

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