linux-kernel - [PATCH 5/5] ARM: OMAP2+: Update gpmc and nand DT binding documentation

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Message-Id: <1444700338-27582-6-git-send-email-fcooper@ti.com>
Date:	Mon, 12 Oct 2015 20:38:58 -0500
From:	Franklin S Cooper Jr <fcooper@...com>
To:	linux-kernel@...r.kernel.org, rogerq@...com,
	devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-mtd@...ts.infradead.org, nsekhar@...com,
	computersforpeace@...il.com, dwmw2@...radead.org, tony@...mide.com
Cc:	Franklin S Cooper Jr <fcooper@...com>
Subject: [PATCH 5/5] ARM: OMAP2+: Update gpmc and nand DT binding documentation

Add additional details to the gpmc and nand documentation to clarify
what is needed to enable nand dma prefetch.

Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
---
 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt | 7 ++++++-
 Documentation/devicetree/bindings/mtd/gpmc-nand.txt                | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
index 704be93..b1e2802 100644
--- a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
@@ -33,6 +33,10 @@ Required properties:
 			As this will change in the future, filling correct
 			values here is a requirement.
 
+GPMC DMA information. Required only when GPMC nand prefetch is enabled.
+ - dmas			GPMC nand prefetch dma channel
+ - dma-names		DMA channel name use as a reference within the Nand driver
+
 Timing properties for child nodes. All are optional and default to 0.
 
  - gpmc,sync-clk-ps:	Minimum clock period for synchronous mode, in picoseconds
@@ -119,7 +123,8 @@ Example for an AM33xx board:
 		ti,hwmods = "gpmc";
 		reg = <0x50000000 0x2000>;
 		interrupts = <100>;
-
+		dmas = <&edma 52>;
+		dma-names = "rxtx";
 		gpmc,num-cs = <8>;
 		gpmc,num-waitpins = <2>;
 		#address-cells = <2>;
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 253e6de..4b0c240 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -61,6 +61,8 @@ Example for an AM33xx board:
 		ti,hwmods = "gpmc";
 		reg = <0x50000000 0x36c>;
 		interrupts = <100>;
+		dmas = <&edma 52>;
+		dma-names = "rxtx";
 		gpmc,num-cs = <8>;
 		gpmc,num-waitpins = <2>;
 		#address-cells = <2>;
-- 
2.6.1

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