[v1] PCI: Export pci_pio_to_address() for module use

[Jianjun Wang]

This interface will be used by PCI host drivers for PIO translation,
export it to support compiling those drivers as kernel modules.

Signed-off-by: Jianjun Wang <jianjun.wang at mediatek.com>
---
 drivers/pci/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index a458c46d7e39..509008899182 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4003,6 +4003,7 @@ phys_addr_t pci_pio_to_address(unsigned long pio)
 
 	return address;
 }
+EXPORT_SYMBOL(pci_pio_to_address);
 
 unsigned long __weak pci_address_to_pio(phys_addr_t address)
 {
-- 
2.25.1