Re: [PATCH v4] dt-bindings: soc: qcom: convert qcom,smem bindings to yaml

[Bjorn Andersson <bjorn.andersson@linaro.org>]

On Tue 15 Dec 04:45 CST 2020, Dmitry Baryshkov wrote:

> Convert soc/qcom/qcom,smem.txt bindings to YAML format.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>  .../bindings/soc/qcom/qcom,smem.txt           | 57 ---------------
>  .../bindings/soc/qcom/qcom,smem.yaml          | 72 +++++++++++++++++++
>  2 files changed, 72 insertions(+), 57 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
> deleted file mode 100644
> index 9326cdf6e1b1..000000000000
> --- a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
> +++ /dev/null
> @@ -1,57 +0,0 @@
> -Qualcomm Shared Memory Manager binding
> -
> -This binding describes the Qualcomm Shared Memory Manager, used to share data
> -between various subsystems and OSes in Qualcomm platforms.
> -
> -- compatible:
> -	Usage: required
> -	Value type: <stringlist>
> -	Definition: must be:
> -		    "qcom,smem"
> -
> -- memory-region:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: handle to memory reservation for main SMEM memory region.
> -
> -- qcom,rpm-msg-ram:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: handle to RPM message memory resource
> -
> -- hwlocks:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: reference to a hwspinlock used to protect allocations from
> -		    the shared memory
> -
> -= EXAMPLE
> -The following example shows the SMEM setup for MSM8974, with a main SMEM region
> -at 0xfa00000 and the RPM message ram at 0xfc428000:
> -
> -	reserved-memory {
> -		#address-cells = <1>;
> -		#size-cells = <1>;
> -		ranges;
> -
> -		smem_region: smem@fa00000 {
> -			reg = <0xfa00000 0x200000>;
> -			no-map;
> -		};
> -	};
> -
> -	smem@fa00000 {
> -		compatible = "qcom,smem";
> -
> -		memory-region = <&smem_region>;
> -		qcom,rpm-msg-ram = <&rpm_msg_ram>;
> -
> -		hwlocks = <&tcsr_mutex 3>;
> -	};
> -
> -	soc {
> -		rpm_msg_ram: memory@fc428000 {
> -			compatible = "qcom,rpm-msg-ram";
> -			reg = <0xfc428000 0x4000>;
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml
> new file mode 100644
> index 000000000000..f7e17713b3d8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Qualcomm Shared Memory Manager binding
> +
> +maintainers:
> +  - Andy Gross <agross@kernel.org>
> +  - Bjorn Andersson <bjorn.andersson@linaro.org>
> +
> +description: |
> +  This binding describes the Qualcomm Shared Memory Manager, used to share data
> +  between various subsystems and OSes in Qualcomm platforms.
> +
> +properties:
> +  compatible:
> +    const: qcom,smem
> +
> +  memory-region:
> +    maxItems: 1
> +    description: handle to memory reservation for main SMEM memory region.
> +
> +  hwlocks:
> +    maxItems: 1
> +
> +  qcom,rpm-msg-ram:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: handle to RPM message memory resource
> +
> +required:
> +  - compatible
> +  - memory-region
> +  - hwlocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    reserved-memory {
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        ranges;
> +
> +        smem_region: smem@fa00000 {
> +            reg = <0xfa00000 0x200000>;
> +            no-map;
> +        };
> +    };
> +
> +    smem {
> +        compatible = "qcom,smem";
> +
> +        memory-region = <&smem_region>;
> +        qcom,rpm-msg-ram = <&rpm_msg_ram>;
> +
> +        hwlocks = <&tcsr_mutex 3>;
> +    };
> +
> +    soc {
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        ranges;
> +
> +        rpm_msg_ram: sram@fc428000 {
> +            compatible = "qcom,rpm-msg-ram";
> +            reg = <0xfc428000 0x4000>;
> +        };
> +    };
> +
> +...
> -- 
> 2.29.2
>