xref: /openbmc/linux/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml (revision dc8423a8)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (c) 2020 MediaTek
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/mediatek,dsi-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MediaTek MIPI Display Serial Interface (DSI) PHY binding

maintainers:
  - Chun-Kuang Hu <chunkuang.hu@kernel.org>
  - Philipp Zabel <p.zabel@pengutronix.de>
  - Chunfeng Yun <chunfeng.yun@mediatek.com>

description: The MIPI DSI PHY supports up to 4-lane output.

properties:
  $nodename:
    pattern: "^dsi-phy@[0-9a-f]+$"

  compatible:
    enum:
      - mediatek,mt2701-mipi-tx
      - mediatek,mt7623-mipi-tx
      - mediatek,mt8173-mipi-tx
      - mediatek,mt8183-mipi-tx

  reg:
    maxItems: 1

  clocks:
    items:
      - description: PLL reference clock

  clock-output-names:
    maxItems: 1

  "#phy-cells":
    const: 0

  "#clock-cells":
    const: 0

  nvmem-cells:
    maxItems: 1
    description: A phandle to the calibration data provided by a nvmem device,
      if unspecified, default values shall be used.

  nvmem-cell-names:
    items:
      - const: calibration-data

  drive-strength-microamp:
    description: adjust driving current
    multipleOf: 200
    minimum: 2000
    maximum: 6000
    default: 4600

required:
  - compatible
  - reg
  - clocks
  - clock-output-names
  - "#phy-cells"
  - "#clock-cells"

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/mt8173-clk.h>
    dsi-phy@10215000 {
        compatible = "mediatek,mt8173-mipi-tx";
        reg = <0x10215000 0x1000>;
        clocks = <&clk26m>;
        clock-output-names = "mipi_tx0_pll";
        drive-strength-microamp = <4000>;
        nvmem-cells= <&mipi_tx_calibration>;
        nvmem-cell-names = "calibration-data";
        #clock-cells = <0>;
        #phy-cells = <0>;
    };

...