From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 30 Jun 2017 09:58:34 -0400
Subject: [PATCH] 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
References: bnc#1060662
Patch-mainline: v4.12.4
Git-commit: 73cc90798ff765341a1d9c2cfe18153ab231c9bb
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.
bug: https://bugs.freedesktop.org/show_bug.cgi?id=101653
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 8b8eda7d1703..c0a806280257 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -838,9 +838,12 @@ static int amdgpu_cgs_get_active_displays_info(struct cgs_device *cgs_device,
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,
--
2.14.2