From c10c8f7c27103bd7ac02d041d9d6e97296d48fc1 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 10 Feb 2017 18:09:32 -0500 Subject: [PATCH] drm/amdgpu/pm: check for headless before calling compute_clocks Don't update display bandwidth on headless asics. bug: https://bugs.freedesktop.org/show_bug.cgi?id=99387 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 95e026a..346e80a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -1296,7 +1296,8 @@ void amdgpu_pm_compute_clocks(struct amdgpu_device *adev) if (!adev->pm.dpm_enabled) return; - amdgpu_display_bandwidth_update(adev); + if (adev->mode_info.num_crtc) + amdgpu_display_bandwidth_update(adev); for (i = 0; i < AMDGPU_MAX_RINGS; i++) { struct amdgpu_ring *ring = adev->rings[i]; -- 2.5.5