[RFT 09/13] media: fsl-viu: Constify ioreadX() iomem argument (as in generic implementation)

From: Krzysztof Kozlowski
Date: Tue Jan 07 2020 - 11:55:10 EST

The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.

Implementations of ioreadX() do not modify the memory under the address
so they can be converted to a "const" version for const-safety and
consistency among architectures.

Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
drivers/media/platform/fsl-viu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/fsl-viu.c b/drivers/media/platform/fsl-viu.c
index 81a8faedbba6..991d9dc82749 100644
--- a/drivers/media/platform/fsl-viu.c
+++ b/drivers/media/platform/fsl-viu.c
@@ -34,7 +34,7 @@
/* Allow building this driver with COMPILE_TEST */
#if !defined(CONFIG_PPC) && !defined(CONFIG_MICROBLAZE)
#define out_be32(v, a) iowrite32be(a, (void __iomem *)v)
-#define in_be32(a) ioread32be((void __iomem *)a)
+#define in_be32(a) ioread32be((const void __iomem *)a)

#define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */