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

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings
   8
   9 maintainers:
  10   - Shyam Kumar Thella <sthella@codeaurora.org>
  11
  12 description: |
  13   The SDAM provides scratch register space for the PMIC clients. This
  14   memory can be used by software to store information or communicate
  15   to/from the PBUS.
  16
  17 allOf:
  18   - $ref: "nvmem.yaml#"
  19
  20 properties:
  21   compatible:
  22     enum:
  23       - qcom,spmi-sdam
  24
  25   reg:
  26     maxItems: 1
  27
  28   "#address-cells":
  29     const: 1
  30
  31   "#size-cells":
  32     const: 1
  33
  34   ranges: true
  35
  36 required:
  37   - compatible
  38   - reg
  39   - ranges
  40
  41 patternProperties:
  42   "^.*@[0-9a-f]+$":
  43     type: object
  44
  45     properties:
  46       reg:
  47         maxItems: 1
  48         description:
  49           Offset and size in bytes within the storage device.
  50
  51       bits:
  52         $ref: /schemas/types.yaml#/definitions/uint32-array
  53         maxItems: 1
  54         items:
  55           items:
  56             - minimum: 0
  57               maximum: 7
  58               description:
  59                 Offset in bit within the address range specified by reg.
  60             - minimum: 1
  61               description:
  62                 Size in bit within the address range specified by reg.
  63
  64     required:
  65       - reg
  66
  67     additionalProperties: false
  68
  69 examples:
  70   - |
  71       sdam_1: nvram@b000 {
  72           #address-cells = <1>;
  73           #size-cells = <1>;
  74           compatible = "qcom,spmi-sdam";
  75           reg = <0xb000 0x100>;
  76           ranges = <0 0xb000 0x100>;
  77
  78           /* Data cells */
  79           restart_reason: restart@50 {
  80               reg = <0x50 0x1>;
  81               bits = <6 2>;
  82           };
  83       };
  84 ...