[PATCH 5/5] drm/radeon: Use pci_get_base_class() to reduce duplicated code

[Sui Jingfeng]

From: Sui Jingfeng <suijingf...@loongson.cn>

Should be no functional change.

Cc: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sui Jingfeng <suijingf...@loongson.cn>
---
 drivers/gpu/drm/radeon/radeon_bios.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_bios.c 
b/drivers/gpu/drm/radeon/radeon_bios.c
index 63bdc9f6fc24..3a8c5199a0fe 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -199,7 +199,11 @@ static bool radeon_atrm_get_bios(struct radeon_device 
*rdev)
        if (rdev->flags & RADEON_IS_IGP)
                return false;
 
-       while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != 
NULL) {
+       while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
+               if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
+                   (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
+                       continue;
+
                dhandle = ACPI_HANDLE(&pdev->dev);
                if (!dhandle)
                        continue;
@@ -211,20 +215,6 @@ static bool radeon_atrm_get_bios(struct radeon_device 
*rdev)
                }
        }
 
-       if (!found) {
-               while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, 
pdev)) != NULL) {
-                       dhandle = ACPI_HANDLE(&pdev->dev);
-                       if (!dhandle)
-                               continue;
-
-                       status = acpi_get_handle(dhandle, "ATRM", &atrm_handle);
-                       if (ACPI_SUCCESS(status)) {
-                               found = true;
-                               break;
-                       }
-               }
-       }
-
        if (!found)
                return false;
        pci_dev_put(pdev);
-- 
2.34.1