s3c-fb: add support for DMA channel control on S5PV210
S5PV210 SoCs allow enabling/disabling DMA channels per window. For a
window to display data from framebuffer memory, its channel has to be
enabled.
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: InKi Dae <inki.dae@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-samsung/include/plat/regs-fb.h
index 4359918..8f39aa5 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -223,6 +223,10 @@
/* S5PV210 */
#define SHADOWCON (0x34)
#define SHADOWCON_WINx_PROTECT(_win) (1 << (10 + (_win)))
+/* DMA channels (all windows) */
+#define SHADOWCON_CHx_ENABLE(_win) (1 << (_win))
+/* Local input channels (windows 0-2) */
+#define SHADOWCON_CHx_LOCAL_ENABLE(_win) (1 << (5 + (_win)))
#define VIDOSDxA_TOPLEFT_X_MASK (0x7ff << 11)
#define VIDOSDxA_TOPLEFT_X_SHIFT (11)
