ARM: omap: clean up DMA register accesses

[ Upstream commit 64a2dc3d3de4235eb73921d870a674a23d9888f0 ]

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 e51e574cb54..63a618efe09 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -255,6 +255,19 @@ 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;