MIPS: pci-legacy: Override pci_address_to_pio

pci-legacy systems are not using logic_pio to managed PIO
allocations, thus the generic pci_address_to_pio won't work
when PCI_IOBASE is defined.

Override the function to use architecture implementation to
fix the problem.

Cc: [email protected]
Fixes: 4bfb53e ("mips: add <asm-generic/io.h> including")
Reported-by: Mateusz Jończyk <[email protected]>
Closes: https://lore.kernel.org/r/[email protected]/
Signed-off-by: Jiaxun Yang <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>

Author: FlyGoat

arch/mips/pci/pci-legacy.c

@@ -29,6 +29,14 @@ static LIST_HEAD(controllers);
 
 static int pci_initialized;
 
+unsigned long pci_address_to_pio(phys_addr_t address)
+{
+	if (address > IO_SPACE_LIMIT)
+		return (unsigned long)-1;
+
+	return (unsigned long) address;
+}
+
 /*
  * We need to avoid collisions with `mirrored' VGA ports
  * and other strange ISA hardware, so we always want the