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Message-Id: <20171011072938.383-2-jacob-chen@iotwrt.com>
Date: Wed, 11 Oct 2017 15:29:34 +0800
From: Jacob Chen <jacob-chen@...wrt.com>
To: linux-rockchip@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org, heiko@...ech.de, robh+dt@...nel.org,
mchehab@...nel.org, linux-media@...r.kernel.org,
laurent.pinchart+renesas@...asonboard.com, hans.verkuil@...co.com,
Jacob Chen <jacob-chen@...wrt.com>,
Yakir Yang <ykk@...k-chips.com>
Subject: [PATCH v12 1/5] dt-bindings: Document the Rockchip RGA bindings
Add DT bindings documentation for Rockchip RGA
Signed-off-by: Jacob Chen <jacob-chen@...wrt.com>
Signed-off-by: Yakir Yang <ykk@...k-chips.com>
Acked-by: Rob Herring <robh@...nel.org>
---
.../devicetree/bindings/media/rockchip-rga.txt | 33 ++++++++++++++++++++++
1 file changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/rockchip-rga.txt
diff --git a/Documentation/devicetree/bindings/media/rockchip-rga.txt b/Documentation/devicetree/bindings/media/rockchip-rga.txt
new file mode 100644
index 000000000000..fd5276abfad6
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip-rga.txt
@@ -0,0 +1,33 @@
+device-tree bindings for rockchip 2D raster graphic acceleration controller (RGA)
+
+RGA is a standalone 2D raster graphic acceleration unit. It accelerates 2D
+graphics operations, such as point/line drawing, image scaling, rotation,
+BitBLT, alpha blending and image blur/sharpness.
+
+Required properties:
+- compatible: value should be one of the following
+ "rockchip,rk3288-rga";
+ "rockchip,rk3399-rga";
+
+- interrupts: RGA interrupt specifier.
+
+- clocks: phandle to RGA sclk/hclk/aclk clocks
+
+- clock-names: should be "aclk", "hclk" and "sclk"
+
+- resets: Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+- reset-names: should be "core", "axi" and "ahb"
+
+Example:
+SoC-specific DT entry:
+ rga: rga@...80000 {
+ compatible = "rockchip,rk3399-rga";
+ reg = <0xff680000 0x10000>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru ACLK_RGA>, <&cru HCLK_RGA>, <&cru SCLK_RGA_CORE>;
+ clock-names = "aclk", "hclk", "sclk";
+
+ resets = <&cru SRST_RGA_CORE>, <&cru SRST_A_RGA>, <&cru SRST_H_RGA>;
+ reset-names = "core, "axi", "ahb";
+ };
--
2.14.1
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