Bindings/clock/sprd,sc9863a-clk.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 # Copyright 2019 Unisoc Inc.
   3 %YAML 1.2
   4 ---
   5 $id: http://devicetree.org/schemas/clock/sprd,sc9863a-clk.yaml#
   6 $schema: http://devicetree.org/meta-schemas/core.yaml#
   7
   8 title: SC9863A Clock Control Unit
   9
  10 maintainers:
  11   - Orson Zhai <orsonzhai@gmail.com>
  12   - Baolin Wang <baolin.wang7@gmail.com>
  13   - Chunyan Zhang <zhang.lyra@gmail.com>
  14
  15 properties:
  16   "#clock-cells":
  17     const: 1
  18
  19   compatible:
  20     enum:
  21       - sprd,sc9863a-ap-clk
  22       - sprd,sc9863a-aon-clk
  23       - sprd,sc9863a-apahb-gate
  24       - sprd,sc9863a-pmu-gate
  25       - sprd,sc9863a-aonapb-gate
  26       - sprd,sc9863a-pll
  27       - sprd,sc9863a-mpll
  28       - sprd,sc9863a-rpll
  29       - sprd,sc9863a-dpll
  30       - sprd,sc9863a-mm-gate
  31       - sprd,sc9863a-mm-clk
  32       - sprd,sc9863a-apapb-gate
  33
  34   clocks:
  35     minItems: 1
  36     maxItems: 4
  37     description: |
  38       The input parent clock(s) phandle for this clock, only list fixed
  39       clocks which are declared in devicetree.
  40
  41   clock-names:
  42     minItems: 1
  43     items:
  44       - const: ext-26m
  45       - const: ext-32k
  46       - const: ext-4m
  47       - const: rco-100m
  48
  49   reg:
  50     maxItems: 1
  51
  52 required:
  53   - compatible
  54   - '#clock-cells'
  55
  56 if:
  57   properties:
  58     compatible:
  59       enum:
  60         - sprd,sc9863a-ap-clk
  61         - sprd,sc9863a-aon-clk
  62 then:
  63   required:
  64     - reg
  65
  66 else:
  67   description: |
  68     Other SC9863a clock nodes should be the child of a syscon node in
  69     which compatible string should be:
  70             "sprd,sc9863a-glbregs", "syscon", "simple-mfd"
  71
  72     The 'reg' property for the clock node is also required if there is a sub
  73     range of registers for the clocks.
  74
  75 additionalProperties: false
  76
  77 examples:
  78   - |
  79     ap_clk: clock-controller@21500000 {
  80       compatible = "sprd,sc9863a-ap-clk";
  81       reg = <0x21500000 0x1000>;
  82       clocks = <&ext_26m>, <&ext_32k>;
  83       clock-names = "ext-26m", "ext-32k";
  84       #clock-cells = <1>;
  85     };
  86
  87   - |
  88     syscon@20e00000 {
  89       compatible = "sprd,sc9863a-glbregs", "syscon", "simple-mfd";
  90       reg = <0x20e00000 0x4000>;
  91       #address-cells = <1>;
  92       #size-cells = <1>;
  93       ranges = <0 0x20e00000 0x4000>;
  94
  95       apahb_gate: apahb-gate@0 {
  96         compatible = "sprd,sc9863a-apahb-gate";
  97         reg = <0x0 0x1020>;
  98         #clock-cells = <1>;
  99       };
 100     };
 101
 102 ...