Commit e2b0330c authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Bjorn Andersson
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dt-bindings: soc: qcom: convert qcom,smem bindings to yaml 



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

Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201215104537.768914-1-dmitry.baryshkov@linaro.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent e1d80081

Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt

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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>;

		};

	};

Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml

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# 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>;

        };

    };



...