Documentation/devicetree/bindings/pwm/imx-tpm-pwm.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pwm/imx-tpm-pwm.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale i.MX TPM PWM controller
   8
   9 maintainers:
  10   - Anson Huang <anson.huang@nxp.com>
  11
  12 description: |
  13   The TPM counter and period counter are shared between multiple
  14   channels, so all channels should use same period setting.
  15
  16 allOf:
  17   - $ref: pwm.yaml#
  18
  19 properties:
  20   "#pwm-cells":
  21     const: 3
  22
  23   compatible:
  24     enum:
  25       - fsl,imx7ulp-pwm
  26
  27   reg:
  28     maxItems: 1
  29
  30   assigned-clocks:
  31     maxItems: 1
  32
  33   assigned-clock-parents:
  34     maxItems: 1
  35
  36   clocks:
  37     maxItems: 1
  38
  39 required:
  40   - compatible
  41   - reg
  42   - clocks
  43
  44 additionalProperties: false
  45
  46 examples:
  47   - |
  48     #include <dt-bindings/clock/imx7ulp-clock.h>
  49
  50     pwm@40250000 {
  51         compatible = "fsl,imx7ulp-pwm";
  52         reg = <0x40250000 0x1000>;
  53         assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
  54         assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;
  55         clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
  56         #pwm-cells = <3>;
  57     };