[PATCH] PCI: mediatek: Fix sparse warning caused to virt_to_phys() prototype change

[Stanislav Kinsburskii <skinsburskii@xxxxxxxxxxxxxxxxxxx>]

Explicitly cast __iomem pointer to const void* with __force to fix the
following warning:

  warning: incorrect type in argument 1 (different address spaces)
     expected void const volatile *address
     got void [noderef] __iomem *

Signed-off-by: Stanislav Kinsburskii <skinsburskii@xxxxxxxxxxxxxxxxxxx>
---
 drivers/pci/controller/pcie-mediatek.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 66a8f73296fc..27f0f79810a1 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -397,7 +397,7 @@ static void mtk_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 	phys_addr_t addr;
 
 	/* MT2712/MT7622 only support 32-bit MSI addresses */
-	addr = virt_to_phys(port->base + PCIE_MSI_VECTOR);
+	addr = virt_to_phys((__force const void *)port->base + PCIE_MSI_VECTOR);
 	msg->address_hi = 0;
 	msg->address_lo = lower_32_bits(addr);
 
@@ -520,7 +520,7 @@ static void mtk_pcie_enable_msi(struct mtk_pcie_port *port)
 	u32 val;
 	phys_addr_t msg_addr;
 
-	msg_addr = virt_to_phys(port->base + PCIE_MSI_VECTOR);
+	msg_addr = virt_to_phys((__force const void *)port->base + PCIE_MSI_VECTOR);
 	val = lower_32_bits(msg_addr);
 	writel(val, port->base + PCIE_IMSI_ADDR);