On Linux, the clocks are already set by the time that function call is reached. amdgpu_pm_compute clocks resets the clocks to their default value. ________________________________ From: Zhu, Rex Sent: September 17, 2018 4:12:33 AM To: Deucher, Alexander; Wentland, Harry; Francis, David Cc: amd-gfx at lists.freedesktop.org Subject: RE: [PATCH] drm/amd/dc: Trigger set power state task when display configuration changes +Harry and David. Best Regards Rex From: Deucher, Alexander Sent: Friday, September 14, 2018 9:40 PM To: Zhu, Rex <Rex.Zhu at amd.com>; amd-gfx at lists.freedesktop.org Subject: Re: [PATCH] drm/amd/dc: Trigger set power state task when display configuration changes Acked-by: Alex Deucher <alexander.deucher at amd.com<mailto:alexander.deucher at amd.com>> ________________________________ From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx<mailto:amd-gfx-bounces at lists.freedesktop.org>> on behalf of Rex Zhu <Rex.Zhu at amd.com<mailto:Rex.Zhu at amd.com>> Sent: Friday, September 14, 2018 1:57:07 AM To: amd-gfx at lists.freedesktop.org<mailto:amd-gfx at lists.freedesktop.org> Cc: Zhu, Rex Subject: [PATCH] drm/amd/dc: Trigger set power state task when display configuration changes Revert "drm/amd/display: Remove call to amdgpu_pm_compute_clocks" This reverts commit dcd473770e86517543691bdb227103d6c781cd0a. when display configuration changes, dc need to update the changes to powerplay, also need to trigger a power state task. amdgpu_pm_compute_clocks is the interface to set power state task either dpm enabled or powerplay enabled Signed-off-by: Rex Zhu <Rex.Zhu at amd.com<mailto:Rex.Zhu at amd.com>> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c index 6d16b4a..0fab64a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c @@ -105,6 +105,8 @@ bool dm_pp_apply_display_requirements( adev->powerplay.pp_funcs->display_configuration_change( adev->powerplay.pp_handle, &adev->pm.pm_display_cfg); + + amdgpu_pm_compute_clocks(adev); } return true; -- 1.9.1 _______________________________________________ amd-gfx mailing list amd-gfx at lists.freedesktop.org<mailto:amd-gfx at lists.freedesktop.org> https://lists.freedesktop.org/mailman/listinfo/amd-gfx -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180917/5c6080ac/attachment-0001.html>
