mtd: nand: pxa3xx: add optional dma for pxa architecture

The PXA architecture provides a DMA to pump data from the nand
controller to memory and the other way around. Add it to the binding
description.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Rob Herring <robh@kernel.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
index 4f833e3c4f51..d9b655f11048 100644
--- a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
@@ -11,6 +11,7 @@ Required properties:
 
 Optional properties:
 
+ - dmas:                        dma data channel, see dma.txt binding doc
  - marvell,nand-enable-arbiter: Set to enable the bus arbiter
  - marvell,nand-keep-config:    Set to keep the NAND controller config as set
                                 by the bootloader
@@ -32,6 +33,8 @@ Example:
                 compatible = "marvell,pxa3xx-nand";
                 reg = <0x43100000 90>;
                 interrupts = <45>;
+                dmas = <&pdma 97 0>;
+                dma-names = "data";
                 #address-cells = <1>;
 
                 marvell,nand-enable-arbiter;