Blackfin: dma: constify MMR pointer array
The array of pointers is never written, so constify it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/mach-bf548/dma.c b/arch/blackfin/mach-bf548/dma.c
index 888b9cc..69ead33 100644
--- a/arch/blackfin/mach-bf548/dma.c
+++ b/arch/blackfin/mach-bf548/dma.c
@@ -11,7 +11,7 @@
#include <asm/blackfin.h>
#include <asm/dma.h>
-struct dma_register *dma_io_base_addr[MAX_DMA_CHANNELS] = {
+struct dma_register * const dma_io_base_addr[MAX_DMA_CHANNELS] = {
(struct dma_register *) DMA0_NEXT_DESC_PTR,
(struct dma_register *) DMA1_NEXT_DESC_PTR,
(struct dma_register *) DMA2_NEXT_DESC_PTR,