ARM: omap: clean up DMA register accesses

We can do much better with this by using a structure to describe each
register, rather than code.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 0bb7de77d478..41328725721a 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -271,6 +271,19 @@ struct omap_dma_dev_attr {
         struct omap_dma_lch *chan;
 };
 
+enum {
+        OMAP_DMA_REG_NONE,
+        OMAP_DMA_REG_16BIT,
+        OMAP_DMA_REG_2X16BIT,
+        OMAP_DMA_REG_32BIT,
+};
+
+struct omap_dma_reg {
+        u16     offset;
+        u8      stride;
+        u8      type;
+};
+
 /* System DMA platform data structure */
 struct omap_system_dma_plat_info {
         struct omap_dma_dev_attr *dma_attr;