Commit 9664a6b5 authored by Shyam Kumar Thella's avatar Shyam Kumar Thella Committed by Greg Kroah-Hartman
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dt-bindings: nvmem: add binding for QTI SPMI SDAM 



QTI SDAM allows PMIC peripherals to access the shared memory that is
available on QTI PMICs. Add documentation for it.

Signed-off-by: default avatarShyam Kumar Thella <sthella@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200116161100.30637-3-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4ad3ad18

Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml

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+84 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings



maintainers:

  - Shyam Kumar Thella <sthella@codeaurora.org>



description: |

  The SDAM provides scratch register space for the PMIC clients. This

  memory can be used by software to store information or communicate

  to/from the PBUS.



allOf:

  - $ref: "nvmem.yaml#"



properties:

  compatible:

    enum:

      - qcom,spmi-sdam



  reg:

    maxItems: 1



  "#address-cells":

    const: 1



  "#size-cells":

    const: 1



  ranges: true



required:

  - compatible

  - reg

  - ranges



patternProperties:

  "^.*@[0-9a-f]+$":

    type: object



    properties:

      reg:

        maxItems: 1

        description:

          Offset and size in bytes within the storage device.



      bits:

        $ref: /schemas/types.yaml#/definitions/uint32-array

        maxItems: 1

        items:

          items:

            - minimum: 0

              maximum: 7

              description:

                Offset in bit within the address range specified by reg.

            - minimum: 1

              description:

                Size in bit within the address range specified by reg.



    required:

      - reg



    additionalProperties: false



examples:

  - |

      sdam_1: nvram@b000 {

          #address-cells = <1>;

          #size-cells = <1>;

          compatible = "qcom,spmi-sdam";

          reg = <0xb000 0x100>;

          ranges = <0 0xb000 0x100>;



          /* Data cells */

          restart_reason: restart@50 {

              reg = <0x50 0x1>;

              bits = <6 2>;

          };

      };

...