From 9ccec0e41eb87aa3e2711993518da784d395099c Mon Sep 17 00:00:00 2001 From: Flora Cui Date: Mon, 15 Feb 2016 15:45:59 +0800 Subject: [PATCH 0943/1110] drm/amd/powerplay: add default clockgating handling This is to workaround regression introduced in 46c34bcb6a15dd85329a39a5e72c62108626acdc. It should be reverted with a final fix. Signed-off-by: Flora Cui Reviewed-by: Rex Zhu --- drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index 94b7809..32a6a6f 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -188,10 +188,12 @@ static int pp_set_clockgating_state(void *handle, hwmgr = ((struct pp_instance *)handle)->hwmgr; - if (hwmgr == NULL || hwmgr->hwmgr_func == NULL || - hwmgr->hwmgr_func->update_clock_gatings == NULL) + if (hwmgr == NULL || hwmgr->hwmgr_func == NULL) return -EINVAL; + if (hwmgr->hwmgr_func->update_clock_gatings == NULL) + return 0; + if (state == AMD_CG_STATE_UNGATE) pp_state = 0; else -- 2.7.4