[PATCH] powerpc/476: Fix sparse report

[Christophe Leroy]

        arch/powerpc/platforms/44x/ppc476.c:236:17: warning: cast removes 
address space '__iomem' of expression
        arch/powerpc/platforms/44x/ppc476.c:241:34: warning: incorrect type in 
argument 1 (different address spaces)
        arch/powerpc/platforms/44x/ppc476.c:241:34:    expected void const 
volatile [noderef] __iomem *addr
        arch/powerpc/platforms/44x/ppc476.c:241:34:    got unsigned char 
[usertype] *
        arch/powerpc/platforms/44x/ppc476.c:243:17: warning: incorrect type in 
argument 1 (different address spaces)
        arch/powerpc/platforms/44x/ppc476.c:243:17:    expected void volatile 
[noderef] __iomem *addr
        arch/powerpc/platforms/44x/ppc476.c:243:17:    got unsigned char 
[usertype] *[assigned] fpga

Mark 'fpga' pointer as __iomem.

Reported-by: kernel test robot <l...@intel.com>
Fixes: ab9a4183fddf ("powerpc: Update currituck pci/usb fixup for new board 
revision")
Cc: Alistair Popple <alist...@popple.id.au>
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
 arch/powerpc/platforms/44x/ppc476.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/44x/ppc476.c 
b/arch/powerpc/platforms/44x/ppc476.c
index 07f7e3ce67b5..fb7db5cedd4e 100644
--- a/arch/powerpc/platforms/44x/ppc476.c
+++ b/arch/powerpc/platforms/44x/ppc476.c
@@ -219,7 +219,7 @@ static int board_rev = -1;
 static int __init ppc47x_get_board_rev(void)
 {
        int reg;
-       u8 *fpga;
+       u8 __iomem *fpga;
        struct device_node *np = NULL;
 
        if (of_machine_is_compatible("ibm,currituck")) {
@@ -233,7 +233,7 @@ static int __init ppc47x_get_board_rev(void)
        if (!np)
                goto fail;
 
-       fpga = (u8 *) of_iomap(np, 0);
+       fpga = of_iomap(np, 0);
        of_node_put(np);
        if (!fpga)
                goto fail;
-- 
2.31.1