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

Message ID 1578415992-24054-12-git-send-email-krzk@kernel.org (mailing list archive)
State New, archived
Headers show
Series iomap: Constify ioreadX() iomem argument | expand

Commit Message

Krzysztof Kozlowski Jan. 7, 2020, 4:53 p.m. UTC 
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@kernel.org>
---
 drivers/media/platform/fsl-viu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

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