Files
linux/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
Linus Torvalds 339e2fca02 Merge tag 'devicetree-fixes-for-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:

 - Improve devlink dependency parsing for DT graphs

 - Fix devlink handling of io-channels dependencies

 - Fix PCI addressing in marvell,prestera example

 - A few schema fixes for property constraints

 - Improve performance of DT unprobed devices kselftest

 - Fix regression in DT_SCHEMA_FILES handling

 - Fix compile error in unittest for !OF_DYNAMIC

* tag 'devicetree-fixes-for-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: ufs: samsung,exynos-ufs: Add size constraints on "samsung,sysreg"
  of: property: Add in-ports/out-ports support to of_graph_get_port_parent()
  of: property: Improve finding the supplier of a remote-endpoint property
  of: property: Improve finding the consumer of a remote-endpoint property
  net: marvell,prestera: Fix example PCI bus addressing
  of: unittest: Fix compile in the non-dynamic case
  of: property: fix typo in io-channels
  dt-bindings: tpm: Drop type from "resets"
  dt-bindings: display: nxp,tda998x: Fix 'audio-ports' constraints
  dt-bindings: xilinx: replace Piyush Mehta maintainership
  kselftest: dt: Stop relying on dirname to improve performance
  dt-bindings: don't anchor DT_SCHEMA_FILES to bindings directory
2024-02-15 10:19:55 -08:00

114 lines
2.7 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/microchip,usb5744.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip USB5744 4-port Hub Controller
description:
Microchip's USB5744 SmartHubTM IC is a 4 port, SuperSpeed (SS)/Hi-Speed (HS),
low power, low pin count configurable and fully compliant with the USB 3.1
Gen 1 specification. The USB5744 also supports Full Speed (FS) and Low Speed
(LS) USB signaling, offering complete coverage of all defined USB operating
speeds. The new SuperSpeed hubs operate in parallel with the USB 2.0
controller, so 5 Gbps SuperSpeed data transfers are not affected by slower
USB 2.0 traffic.
maintainers:
- Michal Simek <michal.simek@amd.com>
- Mubin Sayyed <mubin.sayyed@amd.com>
- Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
properties:
compatible:
enum:
- usb424,2744
- usb424,5744
- microchip,usb5744
reg:
maxItems: 1
reset-gpios:
maxItems: 1
description:
GPIO controlling the GRST# pin.
vdd-supply:
description:
3V3 power supply to the hub
vdd2-supply:
description:
1V2 power supply to the hub
peer-hub:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to the peer hub on the controller.
i2c-bus:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle of an usb hub connected via i2c bus.
required:
- compatible
- reg
allOf:
- if:
properties:
compatible:
contains:
const: microchip,usb5744
then:
properties:
reset-gpios: false
vdd-supply: false
vdd2-supply: false
peer-hub: false
i2c-bus: false
else:
$ref: /schemas/usb/usb-device.yaml
required:
- peer-hub
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c: i2c {
#address-cells = <1>;
#size-cells = <0>;
hub: usb-hub@2d {
compatible = "microchip,usb5744";
reg = <0x2d>;
};
};
usb {
#address-cells = <1>;
#size-cells = <0>;
/* 2.0 hub on port 1 */
hub_2_0: hub@1 {
compatible = "usb424,2744";
reg = <1>;
peer-hub = <&hub_3_0>;
i2c-bus = <&hub>;
reset-gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
};
/* 3.0 hub on port 2 */
hub_3_0: hub@2 {
compatible = "usb424,5744";
reg = <2>;
peer-hub = <&hub_2_0>;
i2c-bus = <&hub>;
reset-gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
};
};