On Fri, Aug 19, 2016 at 06:53:19PM +0300, Stanimir Varbanov wrote:
> Add devicetree binding document for Venus remote processor.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx>
> ---
> .../devicetree/bindings/remoteproc/qcom,venus.txt | 33 ++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,venus.txt
>
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,venus.txt b/Documentation/devicetree/bindings/remoteproc/qcom,venus.txt
> new file mode 100644
> index 000000000000..06a2db60fa38
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,venus.txt
> @@ -0,0 +1,33 @@
> +Qualcomm Venus Peripheral Image Loader
> +
> +This document defines the binding for a component that loads and boots firmware
> +on the Qualcomm Venus remote processor core.
This does not make sense to me. Venus is the video encoder/decoder h/w,
right? Why is the firmware loader separate from the codec block? Why
rproc is used? Are there multiple clients? Naming it rproc_venus implies
there aren't. And why does the firmware loading need 8MB of memory at a
fixed address?
> +
> +- compatible:
> + Usage: required
> + Value type: <string>
> + Definition: must contain "qcom,venus-pil"
> +
> +- memory-region:
> + Usage: required
> + Value type: <phandle>
> + Definition: a phandle to a node describing reserved memory
> +
> +* An example
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + venus_mem: venus@89900000 {
> + compatible = "shared-dma-pool";
> + reg = <0x0 0x89900000 0x0 0x800000>;
> + alignment = <0x1000>;
> + no-map;
> + };
> + };
> +
> + rproc_venus@0 {
> + compatible = "qcom,venus-pil";
> + memory-region = <&venus_mem>;
> + };
> \ No newline at end of file
> --
> 2.7.4
>
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