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From e1ba8d889f2a06ace9596ac989cd48618484bf9b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 9 Oct 2019 14:39:37 -0500
Subject: [PATCH 4165/4736] drm/amdgpu: simplify ATPX detection
Use the base class rather than the specific class and drop
the second loop.
Change-Id: Ic4d4dba633a655531c5bd6ec99f903a0805e7455
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
index 354c8b6106dc..7bebe128dd7b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -614,17 +614,7 @@ static bool amdgpu_atpx_detect(void)
bool d3_supported = false;
struct pci_dev *parent_pdev;
- 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) {
+ while ((pdev = pci_get_class(PCI_BASE_CLASS_DISPLAY << 16, pdev)) != NULL) {
vga_count++;
has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);
--
2.17.1
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