linux-kernel - [PATCH 3.12 098/116] drm/radeon/pm: adjust display configuration after powerstate

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Message-Id: <759ff5dccf67b3617eecd9dd85ec74f2dac37d09.1457082108.git.jslaby@suse.cz>
Date:	Fri,  4 Mar 2016 10:02:23 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Alex Deucher <alexander.deucher@....com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 098/116] drm/radeon/pm: adjust display configuration after powerstate

From: Alex Deucher <alexander.deucher@....com>

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

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

commit 39d4275058baf53e89203407bf3841ff2c74fa32 upstream.

set_power_state defaults to no displays, so we need to update
the display configuration after setting up the powerstate on the
first call. In most cases this is not an issue since ends up
getting called multiple times at any given modeset and the proper
order is achieved in the display changed handling at the top of
the function.

Reviewed-by: Christian König <christian.koenig@....com>
Acked-by: Jordan Lazare <Jordan.Lazare@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/gpu/drm/radeon/radeon_pm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 10fc97749a81..0526eca2402c 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -896,8 +896,6 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
 
 	/* update display watermarks based on new power state */
 	radeon_bandwidth_update(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;
@@ -917,6 +915,9 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
 
 	radeon_dpm_post_set_power_state(rdev);
 
+	/* update displays */
+	radeon_dpm_display_configuration_changed(rdev);
+
 	if (rdev->asic->dpm.force_performance_level) {
 		if (rdev->pm.dpm.thermal_active)
 			/* force low perf level for thermal */
-- 
2.7.2