linux-kernel - [PATCH 4.12 60/99] Revert "drm/amdgpu: fix vblank

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Date:   Mon, 28 Aug 2017 10:04:58 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.12 60/99] Revert "drm/amdgpu: fix vblank_time when displays are off"

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

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

From: Alex Deucher <alexdeucher@...il.com>

This reverts commit 2dc1889ebf8501b0edf125e89a30e1cf3744a2a7.

Fixes a suspend and resume regression.

bug: https://bugzilla.kernel.org/show_bug.cgi?id=196615
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -839,8 +839,6 @@ static int amdgpu_cgs_get_active_display
 
 	mode_info = info->mode_info;
 	if (mode_info) {
-		/* if the displays are off, vblank time is max */
-		mode_info->vblank_time_us = 0xffffffff;
 		/* always set the reference clock */
 		mode_info->ref_clock = adev->clock.spll.reference_freq;
 	}