linux-kernel - [PATCH] LoongArch: Remove vgaarb related workarounds

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Message-Id: <20230801185607.703295-1-suijingfeng@loongson.cn>
Date:   Wed,  2 Aug 2023 02:56:07 +0800
From:   Sui Jingfeng <suijingfeng@...ngson.cn>
To:     Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <kernel@...0n.name>,
        Jianmin Lv <lvjianmin@...ngson.cn>,
        Sui Jingfeng <suijingfeng@...ngson.cn>
Cc:     loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>, Li Yi <liyi@...ngson.cn>,
        linux-pci@...r.kernel.org, loongson-kernel@...ts.loongnix.cn
Subject: [PATCH] LoongArch: Remove vgaarb related workarounds

When we have a better approach[1] to handle multiple video cards problems
on Loongarch, we want to drop the vgaarb related workaround.

[1] https://patchwork.freedesktop.org/patch/550708/?series=121740&rev=1

Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Li Yi <liyi@...ngson.cn>
Cc: linux-pci@...r.kernel.org
Cc: loongson-kernel@...ts.loongnix.cn
Signed-off-by: Sui Jingfeng <suijingfeng@...ngson.cn>
---
 arch/loongarch/pci/pci.c | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/arch/loongarch/pci/pci.c b/arch/loongarch/pci/pci.c
index 2726639150bc..4319b5d75872 100644
--- a/arch/loongarch/pci/pci.c
+++ b/arch/loongarch/pci/pci.c
@@ -8,13 +8,10 @@
 #include <linux/acpi.h>
 #include <linux/types.h>
 #include <linux/pci.h>
-#include <linux/vgaarb.h>
 #include <asm/cacheflush.h>
 #include <asm/loongson.h>
 
 #define PCI_DEVICE_ID_LOONGSON_HOST     0x7a00
-#define PCI_DEVICE_ID_LOONGSON_DC1      0x7a06
-#define PCI_DEVICE_ID_LOONGSON_DC2      0x7a36
 
 int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
 						int reg, int len, u32 *val)
@@ -82,19 +79,3 @@ int pcibios_alloc_irq(struct pci_dev *dev)
 		return 0;
 	return acpi_pci_irq_enable(dev);
 }
-
-static void pci_fixup_vgadev(struct pci_dev *pdev)
-{
-	struct pci_dev *devp = NULL;
-
-	while ((devp = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, devp))) {
-		if (devp->vendor != PCI_VENDOR_ID_LOONGSON) {
-			vga_set_default_device(devp);
-			dev_info(&pdev->dev,
-				"Overriding boot device as %X:%X\n",
-				devp->vendor, devp->device);
-		}
-	}
-}
-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);
-- 
2.34.1