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Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4165-drm-amdgpu-simplify-ATPX-detection.patch')
-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4165-drm-amdgpu-simplify-ATPX-detection.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4165-drm-amdgpu-simplify-ATPX-detection.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4165-drm-amdgpu-simplify-ATPX-detection.patch
new file mode 100644
index 00000000..c292e9ab
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4165-drm-amdgpu-simplify-ATPX-detection.patch
@@ -0,0 +1,41 @@
+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
+