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SubjectRe: [PATCH v3] dt-bindings: misc: fastrpc convert bindings to yaml
On Tue, Nov 30, 2021 at 09:28:46AM +0000, Srinivas Kandagatla wrote:
> Convert Qualcomm FastRPC bindings to yaml format, so that we could validate
> dt-entries correctly and any future additions can go into yaml format.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>
> Changes since v2:
> fixed typo in pil compatible string
> added required properties for pil example node
>
> .../devicetree/bindings/misc/qcom,fastrpc.txt | 78 -------------
> .../bindings/misc/qcom,fastrpc.yaml | 104 ++++++++++++++++++
> 2 files changed, 104 insertions(+), 78 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
> create mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml

> diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> new file mode 100644
> index 000000000000..1840db08500c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> @@ -0,0 +1,104 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/misc/qcom,fastrpc.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Qualcomm Technologies, Inc. FastRPC Driver
> +
> +maintainers:
> + - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> +
> +description: |
> + This binding describes Qualcomm FastRPC an IPC (Inter-Processor Communication)
> + mechanism that allows for clients to transparently make remote method
> + invocations across DSP and APPS boundaries. This enables developers
> + to offload tasks to the DSP and free up the application processor for
> + other tasks.
> +
> +properties:
> + compatible:
> + const: qcom,fastrpc
> +
> + label:
> + enum:
> + - adsp
> + - mdsp
> + - sdsp
> + - cdsp
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> +patternProperties:
> + "^cb@[0-9a-f]$":
> + type: object
> + description: |
> + Compute context bank
> +
> + properties:
> + compatible:
> + const: qcom,fastrpc-compute-cb
> +
> + reg:
> + maxItems: 1
> + description: Context Bank ID
> +
> + qcom,nsessions:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: How many sessions can share this context bank.
> + Defaults to 1 when this property is not specified.
default: 1

Is there a maximum? Or 2^32 is good?

> +
> + required:
> + - compatible
> + - reg
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - label
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + adsp {
> + compatible = "qcom,msm8996-adsp-pil";
> + interrupts-extended = <&intc 0 162 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 0 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 1 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 2 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 3 IRQ_TYPE_EDGE_RISING>;
> + interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
> + clocks = <&xo_board>;
> + clock-names = "xo";
> + memory-region = <&adsp_region>;
> + qcom,smem-states = <&smp2p_adsp_out 0>;
> + qcom,smem-state-names = "stop";
> +
> + smd-edge {
> + label = "lpass";
> +
> + fastrpc {
> + compatible = "qcom,fastrpc";
> + label = "adsp";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cb@1 {
> + compatible = "qcom,fastrpc-compute-cb";
> + reg = <1>;
> + };
> +
> + cb@2 {
> + compatible = "qcom,fastrpc-compute-cb";
> + reg = <2>;
> + };
> + };
> + };
> + };
> --
> 2.21.0
>
>

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