Re: [PATCH 2/2] dt-bindings: simplefb-sunxi: Add sunxi simplefb extensions
From: Grant Likely <hidden>
Date: 2014-11-17 12:18:14
Also in:
linux-arm-kernel, linux-devicetree
On Mon, Nov 17, 2014 at 11:34 AM, Hans de Goede [off-list ref] wrote:
If pre-filled framebuffer nodes are used, the firmware may need extra properties to find the right node. This documents the properties to use for this on sunxi platforms. Signed-off-by: Hans de Goede <redacted>
Acked-by: Grant Likely <redacted>
quoted hunk
--- .../bindings/video/simple-framebuffer-sunxi.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/simple-framebuffer-sunxi.txtdiff --git a/Documentation/devicetree/bindings/video/simple-framebuffer-sunxi.txt b/Documentation/devicetree/bindings/video/simple-framebuffer-sunxi.txt new file mode 100644 index 0000000..84ca264 --- /dev/null +++ b/Documentation/devicetree/bindings/video/simple-framebuffer-sunxi.txt@@ -0,0 +1,33 @@ +Sunxi specific Simple Framebuffer bindings + +This binding documents sunxi specific extensions to the simple-framebuffer +bindings. The sunxi simplefb u-boot code relies on the devicetree containing +pre-populated simplefb nodes. + +These extensions are intended so that u-boot can select the right node based +on which pipeline and output is being used. As such they are solely intended +for firmware / bootloader use, and the OS should ignore them. + +Required properties: +- compatible: "sunxi,framebuffer" +- sunxi,pipeline: + <0> for the de_be0 -> lcdc0 -> output pipeline + <1> for the de_be1 -> lcdc1 -> output pipeline +- sunxi,output: One of: "hdmi", "lcd", "vga", and "composite" + +Example: + +chosen { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + framebuffer@0 { + compatible = "sunxi,framebuffer", "simple-framebuffer"; + sunxi,pipeline = <0>; + sunxi,output = "hdmi"; + clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>, + <&ahb_gates 44>; + status = "disabled"; + }; +}; --2.1.0