[PATCH 5.10 23/93] drm/amd/display: Pass PCI deviceid into DC

Greg Kroah-Hartman
2021-10-04T13:23:47Z

From: Charlene Liu <Charlene.Liu@amd.com>

commit d942856865c733ff60450de9691af796ad71d7bc upstream.

[why]
pci deviceid not passed to dal dc, without proper break,
dcn2.x falls into dcn3.x code path

[how]
pass in pci deviceid, and break once dal_version initialized.

Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -951,6 +951,7 @@ static int amdgpu_dm_init(struct amdgpu_

init_data.asic_id.pci_revision_id = adev->pdev->revision;
init_data.asic_id.hw_internal_rev = adev->external_rev_id;
+ init_data.asic_id.chip_id = adev->pdev->device;

init_data.asic_id.vram_width = adev->gmc.vram_width;
/* TODO: initialize init_data.asic_id.vram_type here!!!! */