On Fri, Apr 01, 2016 at 05:21:51PM +0100, Liviu Dudau wrote:
> Add DT bindings documentation for the Mali Display Processor. The bindings
> describe the Mali DP500, DP550 and DP650 processors from ARM Ltd.
>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Pawel Moll <pawel.moll@xxxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
> Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
>
> Signed-off-by: Liviu Dudau <Liviu.Dudau@xxxxxxx>
> ---
> .../devicetree/bindings/display/arm,malidp.txt | 65 ++++++++++++++++++++++
> 1 file changed, 65 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/arm,malidp.txt
>
> diff --git a/Documentation/devicetree/bindings/display/arm,malidp.txt b/Documentation/devicetree/bindings/display/arm,malidp.txt
> new file mode 100644
> index 0000000..ed70de3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/arm,malidp.txt
> @@ -0,0 +1,65 @@
> +ARM Mali-DP
> +
> +The following bindings apply to a family of Display Processors sold as
> +licensable IP by ARM Ltd. The bindings describe the Mali DP500, DP550 and
> +DP650 processors that offer multiple composition layers, support for
> +rotation and scaling output.
> +
> +Required properties:
> + - compatible: should be one of
> + "arm,mali-dp500"
> + "arm,mali-dp550"
> + "arm,mali-dp650"
> + depending on the particular implementation present in the hardware
> + - reg: Physical base address and size of the block of registers used by
> + the processor.
> + - interrupts: Interrupt list, as defined in ../interrupt-controller/interrupts.txt,
> + interrupt client nodes.
> + - interrupt-names: name of the engine inside the processor that will
> + use the corresponding interrupt. Should be one of "DE" or "SE".
s/be one of/contain/, s/or/and/, judging by the example.
Otherwise this generally looks fine to me.
Mark.
> + - clocks: A list of phandle + clock-specifier pairs, one for each entry
> + in 'clock-names'
> + - clock-names: A list of clock names. It should contain:
> + - "pclk": for the APB interface clock
> + - "aclk": for the AXI interface clock
> + - "mclk": for the main processor clock
> + - "pxlclk": for the pixel clock feeding the output PLL of the processor.
> + - arm,malidp-output-port-lines: Array of u8 values describing the number
> + of output lines per channel (R, G and B).
> +
> +Required sub-nodes:
> + - port: The Mali DP connection to an encoder input port. The connection
> + is modelled using the OF graph bindings specified in
> + Documentation/devicetree/bindings/graph.txt
> +
> +Optional properties:
> + - memory-region: phandle to a node describing memory (see
> + Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt)
> + to be used for the framebuffer; if not present, the framebuffer may
> + be located anywhere in memory.
> +
> +
> +Example:
> +
> +/ {
> + ...
> +
> + dp0: malidp@6f200000 {
> + compatible = "arm,mali-dp650";
> + reg = <0 0x6f200000 0 0x20000>;
> + memory-region = <&display_reserved>;
> + interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>,
> + <0 168 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "DE", "SE";
> + clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>;
> + clock-names = "pxlclk", "mclk", "aclk", "pclk";
> + arm,malidp-output-port-lines = /bits/ 8 <8 8 8>;
> + port {
> + dp0_output: endpoint {
> + remote-endpoint = <&tda998x_2_input>;
> + };
> + };
> + };
> +
> + ...
> +};
> --
> 2.7.1
>
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