This reverts commit f5fda6d89afe6e9cedaa1c3303903c905262f6e8.

You can't use BASE_CLASS in pci_get_class.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/995
Signed-off-by: Alex Deucher <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
index a97fb759e2f4..3e35a8f2c5e5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -613,7 +613,17 @@ static bool amdgpu_atpx_detect(void)
        bool d3_supported = false;
        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++;
 
                has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);
-- 
2.24.1

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