Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml
Extension
.yaml
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6071 bytes
Lines
185
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/connector/pcie-m2-e-connector.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: PCIe M.2 Mechanical Key E Connector

maintainers:
  - Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>

description:
  A PCIe M.2 E connector node represents a physical PCIe M.2 Mechanical Key E
  connector. Mechanical Key E connectors are used to connect Wireless
  Connectivity devices including combinations of Wi-Fi, BT, NFC to the host
  machine over interfaces like PCIe/SDIO, USB/UART+PCM, and I2C.

properties:
  compatible:
    const: pcie-m2-e-connector

  vpcie3v3-supply:
    description: A phandle to the regulator for 3.3v supply.

  vpcie1v8-supply:
    description: A phandle to the regulator for VIO 1.8v supply.

  i2c-parent:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: I2C interface

  clocks:
    description: 32.768 KHz Suspend Clock (SUSCLK) input from the host system to
      the M.2 card. Refer, PCI Express M.2 Specification r4.0, sec 3.1.12.1 for
      more details.
    maxItems: 1

  w-disable1-gpios:
    description: GPIO output to W_DISABLE1# signal. This signal is used by the
      host system to disable WiFi radio in the M.2 card. Refer, PCI Express M.2
      Specification r4.0, sec 3.1.12.3 for more details.
    maxItems: 1

  w-disable2-gpios:
    description: GPIO output to W_DISABLE2# signal. This signal is used by the
      host system to disable BT radio in the M.2 card. Refer, PCI Express M.2
      Specification r4.0, sec 3.1.12.3 for more details.
    maxItems: 1

  viocfg-gpios:
    description: GPIO input to IO voltage configuration (VIO_CFG) signal. The
      card drives this signal to indicate to the host system whether the card
      supports an independent IO voltage domain for sideband signals. Refer,
      PCI Express M.2 Specification r4.0, sec 3.1.15.1 for more details.
    maxItems: 1

  uart-wake-gpios:
    description: GPIO input to UART_WAKE# signal. The card asserts this signal
      to wake the host system and initiate UART interface communication. Refer,
      PCI Express M.2 Specification r4.0, sec 3.1.8.1 for more details.
    maxItems: 1

  sdio-wake-gpios:
    description: GPIO input to SDIO_WAKE# signal. The card asserts this signal
      to wake the host system and initiate SDIO interface communication. Refer,
      PCI Express M.2 Specification r4.0, sec 3.1.7 for more details.
    maxItems: 1

  sdio-reset-gpios:
    description: GPIO output to SDIO_RESET# signal. This signal is used by the

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