xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/brcm,brcmstb-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Broadcom STB BSC IIC Master Controller

maintainers:
  - Kamal Dasu <kdasu.kdev@gmail.com>

allOf:
  - $ref: /schemas/i2c/i2c-controller.yaml#

properties:
  compatible:
    enum:
      - brcm,bcm2711-hdmi-i2c
      - brcm,brcmstb-i2c
      - brcm,brcmper-i2c

  reg:
    minItems: 1
    maxItems: 2
    items:
      - description: BSC register range
      - description: Auto-I2C register range

  reg-names:
    items:
      - const: bsc
      - const: auto-i2c

  interrupts:
    maxItems: 1

  interrupt-names:
    maxItems: 1

  clock-frequency:
    enum:
      - 46875
      - 50000
      - 93750
      - 97500
      - 187500
      - 200000
      - 375000
      - 390000

required:
  - compatible
  - reg
  - clock-frequency

unevaluatedProperties: false

if:
  properties:
    compatible:
      contains:
        enum:
          - brcm,bcm2711-hdmi-i2c

then:
  properties:
    reg:
      minItems: 2

  required:
    - reg-names

else:
  properties:
    reg:
      maxItems: 1

examples:
  - |
      bsca: i2c@f0406200 {
          clock-frequency = <390000>;
          compatible = "brcm,brcmstb-i2c";
          interrupt-parent = <&irq0_intc>;
          reg = <0xf0406200 0x58>;
          interrupts = <0x18>;
          interrupt-names = "upg_bsca";
      };

  - |
      ddc0: i2c@7ef04500 {
          compatible = "brcm,bcm2711-hdmi-i2c";
          reg = <0x7ef04500 0x100>, <0x7ef00b00 0x300>;
          reg-names = "bsc", "auto-i2c";
          clock-frequency = <390000>;
      };

...