Commit 5d30ed3c authored by Alex Deucher's avatar Alex Deucher
Browse files

Revert "drm/amdgpu: simplify ATPX detection" 

This reverts commit f5fda6d8.

You can't use BASE_CLASS in pci_get_class.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/995


Acked-by: default avatarEvan Quan <evan.quan@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e31d941c

drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c

+11 −1
Original line number Original line Diff line number Diff line
@@ -613,7 +613,17 @@ static bool amdgpu_atpx_detect(void) 
	bool d3_supported = false;

	bool d3_supported = false;

	struct pci_dev *parent_pdev;

	struct pci_dev *parent_pdev;





	while ((pdev = pci_get_class(PCI_BASE_CLASS_DISPLAY << 16, pdev)) != NULL) {

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {

		vga_count++;



		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);



		parent_pdev = pci_upstream_bridge(pdev);

		d3_supported |= parent_pdev && parent_pdev->bridge_d3;

		amdgpu_atpx_get_quirks(pdev);

	}



	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {

		vga_count++;

		vga_count++;





		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);

		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);

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