Documentation/devicetree/bindings/spi/renesas,rzv2m-csi.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/renesas,rzv2m-csi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas RZ/V2M Clocked Serial Interface (CSI)

maintainers:
  - Fabrizio Castro <fabrizio.castro.jz@renesas.com>
  - Geert Uytterhoeven <geert+renesas@glider.be>

allOf:
  - $ref: spi-controller.yaml#

properties:
  compatible:
    const: renesas,rzv2m-csi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: The clock used to generate the output clock (CSICLK)
      - description: Internal clock to access the registers (PCLK)

  clock-names:
    items:
      - const: csiclk
      - const: pclk

  resets:
    maxItems: 1

  power-domains:
    maxItems: 1

  renesas,csi-no-ss:
    type: boolean
    description:
      The CSI Slave Selection (SS) pin won't be used to enable transmission and
      reception. Only available when in target mode.

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - resets
  - power-domains
  - '#address-cells'
  - '#size-cells'

dependencies:
  renesas,csi-no-ss: [ spi-slave ]

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/r9a09g011-cpg.h>
    csi4: spi@a4020200 {
        compatible = "renesas,rzv2m-csi";
        reg = <0xa4020200 0x80>;
        interrupts = <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&cpg CPG_MOD R9A09G011_CSI4_CLK>,
                 <&cpg CPG_MOD R9A09G011_CPERI_GRPH_PCLK>;
        clock-names = "csiclk", "pclk";
        resets = <&cpg R9A09G011_CSI_GPH_PRESETN>;
        power-domains = <&cpg>;
        #address-cells = <1>;
        #size-cells = <0>;
    };