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Revert "drm/amdgpu: simplify ATPX detection"

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This reverts commit f5fda6d89a.

You can't use BASE_CLASS in pci_get_class.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/995
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-12-20 18:57:16 -05:00
parent 8831fa6e89
commit c00ca07f64
1 changed files with 11 additions and 1 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
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@ -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);