Documentation/devicetree/bindings/clock/imx8mn-clock.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/bindings/clock/imx8mn-clock.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP i.MX8M Nano Clock Control Module Binding
   8
   9 maintainers:
  10   - Anson Huang <Anson.Huang@nxp.com>
  11
  12 description: |
  13   NXP i.MX8M Nano clock control module is an integrated clock controller, which
  14   generates and supplies to all modules.
  15
  16 properties:
  17   compatible:
  18     const: fsl,imx8mn-ccm
  19
  20   reg:
  21     maxItems: 1
  22
  23   clocks:
  24     items:
  25       - description: 32k osc
  26       - description: 24m osc
  27       - description: ext1 clock input
  28       - description: ext2 clock input
  29       - description: ext3 clock input
  30       - description: ext4 clock input
  31
  32   clock-names:
  33     items:
  34       - const: osc_32k
  35       - const: osc_24m
  36       - const: clk_ext1
  37       - const: clk_ext2
  38       - const: clk_ext3
  39       - const: clk_ext4
  40
  41   '#clock-cells':
  42     const: 1
  43     description: |
  44       The clock consumer should specify the desired clock by having the clock
  45       ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mn-clock.h
  46       for the full list of i.MX8M Nano clock IDs.
  47
  48 required:
  49   - compatible
  50   - reg
  51   - clocks
  52   - clock-names
  53   - '#clock-cells'
  54
  55 examples:
  56   # Clock Control Module node:
  57   - |
  58     clk: clock-controller@30380000 {
  59         compatible = "fsl,imx8mn-ccm";
  60         reg = <0x0 0x30380000 0x0 0x10000>;
  61         #clock-cells = <1>;
  62         clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>,
  63                  <&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
  64         clock-names = "osc_32k", "osc_24m", "clk_ext1",
  65                       "clk_ext2", "clk_ext3", "clk_ext4";
  66     };
  67
  68   # Required external clocks for Clock Control Module node:
  69   - |
  70     osc_32k: clock-osc-32k {
  71         compatible = "fixed-clock";
  72         #clock-cells = <0>;
  73         clock-frequency = <32768>;
  74         clock-output-names = "osc_32k";
  75     };
  76
  77     osc_24m: clock-osc-24m {
  78         compatible = "fixed-clock";
  79         #clock-cells = <0>;
  80         clock-frequency = <24000000>;
  81         clock-output-names = "osc_24m";
  82     };
  83
  84     clk_ext1: clock-ext1 {
  85         compatible = "fixed-clock";
  86         #clock-cells = <0>;
  87         clock-frequency = <133000000>;
  88         clock-output-names = "clk_ext1";
  89     };
  90
  91     clk_ext2: clock-ext2 {
  92         compatible = "fixed-clock";
  93         #clock-cells = <0>;
  94         clock-frequency = <133000000>;
  95         clock-output-names = "clk_ext2";
  96     };
  97
  98     clk_ext3: clock-ext3 {
  99         compatible = "fixed-clock";
 100         #clock-cells = <0>;
 101         clock-frequency = <133000000>;
 102         clock-output-names = "clk_ext3";
 103     };
 104
 105     clk_ext4: clock-ext4 {
 106         compatible = "fixed-clock";
 107         #clock-cells = <0>;
 108         clock-frequency= <133000000>;
 109         clock-output-names = "clk_ext4";
 110     };
 111
 112 ...