DEEPIN: pci: limit CFG0/1 mode detection to CONFIG_LOONGARCH

Commit 620c10b ("PCI: Check if the pci controller can use both CFG0 and CFG1 mode to access configuration space") broke PCIe resource probing on Loongson 3A4000. Limit the CFG0 mode detection to CONFIG_LOONGARCH to make sure that MIPS platforms are not affected. Fixes: 620c10b ("PCI: Check if the pci controller can use both CFG0 and CFG1 mode to access configuration space") Signed-off-by: Mingcong Bai <[email protected]>
deepin-community · Dec 23, 2024 · 4582422 · 4582422
1 parent e64cae8
commit 4582422
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/pci/controller/pci-loongson.c b/drivers/pci/controller/pci-loongson.c
@@ -484,7 +484,9 @@ static int loongson_pci_probe(struct platform_device *pdev)
 	}
 
 	if (priv->data->flags & FLAG_CFG1) {
+#ifdef CONFIG_LOONGARCH
 		if (priv->cfg0_base)
+#endif
 			num = 1;
 		regs = platform_get_resource(pdev, IORESOURCE_MEM, num);
 		if (!regs)