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

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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>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2017-06-30 09:58:34 -04:00
parent beb3777682
commit 73cc90798f
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
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@ -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,