sparc/PCI: Remove pcibios_enable_device() as they do nothing extra

Under arch/sparc/ there are multiple copies of pcibios_enable_device() but
none of those seem to do anything extra beyond what pci_enable_resources()
is supposed to do. These functions could lead to inconsistencies in
behavior, especially now as pci_enable_resources() and the bridge window
resource flags behavior are going to be altered by upcoming changes.

Remove all pcibios_enable_device() from arch/sparc/ so that PCI core can
simply call into pci_enable_resources() instead using its __weak version
of pcibios_enable_device().

Signed-off-by: Ilpo Järvinen <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Link: https://patch.msgid.link/[e-mail]

arch/sparc/kernel/leon_pci.c

···
 	pci_assign_unassigned_resources();
 	pci_bus_add_devices(root_bus);
 }
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
-	struct resource *res;
-	u16 cmd, oldcmd;
-	int i;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	oldcmd = cmd;
-
-	pci_dev_for_each_resource(dev, res, i) {
-		/* Only set up the requested stuff */
-		if (!(mask & (1<<i)))
-			continue;
-
-		if (res->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		if (res->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-
-	if (cmd != oldcmd) {
-		pci_info(dev, "enabling device (%04x -> %04x)\n", oldcmd, cmd);
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-	return 0;
-}

arch/sparc/kernel/pci.c

···
 	return bus;
 }
 
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
-	struct resource *res;
-	u16 cmd, oldcmd;
-	int i;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	oldcmd = cmd;
-
-	pci_dev_for_each_resource(dev, res, i) {
-		/* Only set up the requested stuff */
-		if (!(mask & (1<<i)))
-			continue;
-
-		if (res->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		if (res->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-
-	if (cmd != oldcmd) {
-		pci_info(dev, "enabling device (%04x -> %04x)\n", oldcmd, cmd);
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-	return 0;
-}
-
 /* Platform support for /proc/bus/pci/X/Y mmap()s. */
 int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma)
 {

arch/sparc/kernel/pcic.c

···
 	}
 }
 
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
-	struct resource *res;
-	u16 cmd, oldcmd;
-	int i;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	oldcmd = cmd;
-
-	pci_dev_for_each_resource(dev, res, i) {
-		/* Only set up the requested stuff */
-		if (!(mask & (1<<i)))
-			continue;
-
-		if (res->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		if (res->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-
-	if (cmd != oldcmd) {
-		pci_info(dev, "enabling device (%04x -> %04x)\n", oldcmd, cmd);
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-	return 0;
-}
-
 /* Makes compiler happy */
 static volatile int pcic_timer_dummy;