Blackfin arch: add const to some function prototype and struct dma_channel

Signed-off-by: Michael McTernan <mmcternan@airvana.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 2625aa20a92c..22bce17bbb02 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -116,7 +116,7 @@ late_initcall(proc_dma_init);
 /*------------------------------------------------------------------------------
  *      Request the specific DMA channel from the system.
  *-----------------------------------------------------------------------------*/
-int request_dma(unsigned int channel, char *device_id)
+int request_dma(unsigned int channel, const char *device_id)
 {
         pr_debug("request_dma() : BEGIN \n");