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authorGeert Uytterhoeven <geert+renesas@glider.be>2014-06-20 16:37:38 +0400
committerSimon Horman <horms+renesas@verge.net.au>2014-07-09 12:55:57 +0400
commit6b32fafee2bb5fcf0b3d3d04a9762d3a0212089e (patch)
tree150c5661c704174150299b62b82b10f704353934 /drivers/dma/sh
parent7171511eaec5bf23fb06078f59784a3a0626b38f (diff)
downloadlinux-6b32fafee2bb5fcf0b3d3d04a9762d3a0212089e.tar.xz
dmaengine: shdma: Add more register documentation
Also add a few definitions that were missing. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'drivers/dma/sh')
-rw-r--r--drivers/dma/sh/shdmac.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index 146d5df926db..1a6f6595c6c1 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -38,12 +38,12 @@
#include "../dmaengine.h"
#include "shdma.h"
-/* DMA register */
-#define SAR 0x00
-#define DAR 0x04
-#define TCR 0x08
-#define CHCR 0x0C
-#define DMAOR 0x40
+/* DMA registers */
+#define SAR 0x00 /* Source Address Register */
+#define DAR 0x04 /* Destination Address Register */
+#define TCR 0x08 /* Transfer Count Register */
+#define CHCR 0x0C /* Channel Control Register */
+#define DMAOR 0x40 /* DMA Operation Register */
#define TEND 0x18 /* USB-DMAC */