Commit 17bdb4a8 authored by Jerry (Fangzhi) Zuo's avatar Jerry (Fangzhi) Zuo Committed by Alex Deucher
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drm/amd/display: Check DMCU Exists Before Loading 



Signed-off-by: default avatarJerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: default avatarHersen Wu <hersenxs.wu@amd.com>
Acked-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7b353e41

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+6 −1
Original line number Diff line number Diff line
@@ -1389,9 +1389,14 @@ static int dm_late_init(void *handle) 
	struct dmcu_iram_parameters params;

	unsigned int linear_lut[16];

	int i;

	struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu;

	struct dmcu *dmcu = NULL;

	bool ret = false;



	if (!adev->dm.fw_dmcu)

		return detect_mst_link_for_all_connectors(adev->ddev);



	dmcu = adev->dm.dc->res_pool->dmcu;



	for (i = 0; i < 16; i++)

		linear_lut[i] = 0xFFFF * i / 15;

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