[PATCH 6.12 416/567] LoongArch: Add new PCI ID for pci_fixup_vgadev()

Greg Kroah-Hartman
2026-01-06T17:37:19Z

From: Huacai Chen <chenhuacai@loongson.cn>

commit bf3fa8f232a1eec8d7b88dcd9e925e60f04f018d upstream.

Loongson-2K3000 has a new PCI ID (0x7a46) for its display controller,
Add it for pci_fixup_vgadev() since we prefer a discrete graphics card
as default boot device if present.

Cc: stable@vger.kernel.org
Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/loongarch/pci/pci.c | 2 ++
1 file changed, 2 insertions(+)

--- a/arch/loongarch/pci/pci.c
+++ b/arch/loongarch/pci/pci.c
@@ -15,6 +15,7 @@
#define PCI_DEVICE_ID_LOONGSON_HOST 0x7a00
#define PCI_DEVICE_ID_LOONGSON_DC1 0x7a06
#define PCI_DEVICE_ID_LOONGSON_DC2 0x7a36
+#define PCI_DEVICE_ID_LOONGSON_DC3 0x7a46

int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
int reg, int len, u32 *val)
@@ -98,3 +99,4 @@ static void pci_fixup_vgadev(struct pci_
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_DC1, pci_fixup_vgadev);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_DC2, pci_fixup_vgadev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_DC3, pci_fixup_vgadev);