drm/amd/powerplay/smu7: allow mclk switching with no displays



If there are no displays attached, there is no reason to disable
mclk switching.

Fixes mclks getting set to high when there are no displays attached.

Reviewed-by: Eric Huang <JinhuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

parent 5825acf5

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

+7 −4

Original line number	Diff line number	Diff line
		@@ -2756,6 +2756,9 @@ static int smu7_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
		PHM_PlatformCaps_DisableMclkSwitchingForFrameLock);


		if (info.display_count == 0)
		disable_mclk_switching = false;
		else
		disable_mclk_switching = ((1 < info.display_count) \|\|
		disable_mclk_switching_for_frame_lock \|\|
		smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us) \|\|