Patch "drm/amdgpu/cgs: always set reference clock in mode_info" has been added to the 4.12-stable tree

This is a note to let you know that I've just added the patch titled

drm/amdgpu/cgs: always set reference clock in mode_info

to the 4.12-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:
drm-amdgpu-cgs-always-set-reference-clock-in-mode_info.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Alex Deucher <[email protected]>
Date: Fri, 30 Jun 2017 09:58:34 -0400
Subject: drm/amdgpu/cgs: always set reference clock in mode_info
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Alex Deucher <[email protected]>

commit 73cc90798ff765341a1d9c2cfe18153ab231c9bb upstream.

It's relevent regardless of whether there are displays enabled. Fixes garbage values for ref clock in powerplay leading to incorrect fan speed reporting when displays are disabled.

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

@@ -838,9 +838,12 @@ static int amdgpu_cgs_get_active_display
 		return -EINVAL;
 
 	mode_info = info->mode_info;
-	if (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;
+	}
 
 	if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
 		list_for_each_entry(crtc,

Patches currently in stable-queue which might be from [email protected] are

queue-4.12/drm-amd-amdgpu-return-error-if-initiating-read-out-of-range-on-vram.patch queue-4.12/drm-radeon-fix-edp-for-single-display-imac10-1-v2.patch queue-4.12/drm-amdgpu-gfx8-drop-per-apu-cu-limits.patch queue-4.12/drm-amdgpu-cgs-always-set-reference-clock-in-mode_info.patch queue-4.12/drm-amdgpu-don-t-call-amd_powerplay_destroy-if-we-don-t-have-powerplay.patch queue-4.12/drm-radeon-ci-disable-mclk-switching-for-high-refresh-rates-v2.patch queue-4.12/drm-amdgpu-fix-the-memory-corruption-on-s3.patch queue-4.12/drm-amdgpu-fix-vblank_time-when-displays-are-off.patch queue-4.12/drm-ttm-fix-use-after-free-in-ttm_bo_clean_mm.patch