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dt-bindings: usb: Add the binding example for the Genesys Logic GL3523 hub

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Add the binding example for the USB3.1 Genesys Logic GL3523
integrates with USB 3.1 Gen 1 Super Speed and USB 2.0 High-Speed
hub.

For onboard hub controllers that support USB 3.x and USB 2.0 hubs
with shared resets and power supplies, this property is used to identify
the hubs with which these are shared.

GL3523 has built-in 5V to 3.3V and 5V to 1.2V regulators, which serves
power to the USB HUB, it uses 5V power regulator.

Update the peer-hub description.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20240613123020.43500-1-linux.amoon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anand Moon 2024-06-13 18:00:14 +05:30 committed by Greg Kroah-Hartman
parent 90c478ee37
commit 3d9894e26e
1 changed files with 55 additions and 5 deletions
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60
Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
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@ -9,9 +9,6 @@ title: Genesys Logic USB hub controller
maintainers:
- Icenowy Zheng <uwu@icenowy.me>
allOf:
- $ref: usb-device.yaml#
properties:
compatible:
enum:
@ -27,17 +24,44 @@ properties:
vdd-supply:
description:
the regulator that provides 3.3V core power to the hub.
The regulator that provides 3.3V or 5.0V core power to the hub.
peer-hub:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to the peer hub on the controller.
For onboard hub controllers that support USB 3.x and USB 2.0 hubs
with shared resets and power supplies, this property is used to identify
the hubs with which these are shared.
required:
- compatible
- reg
allOf:
- $ref: usb-device.yaml#
- if:
properties:
compatible:
contains:
enum:
- usb5e3,608
then:
properties:
peer-hub: false
vdd-supply: false
- if:
properties:
compatible:
contains:
enum:
- usb5e3,610
- usb5e3,620
then:
properties:
peer-hub: true
vdd-supply: true
additionalProperties: false
examples:
@ -54,3 +78,29 @@ examples:
reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
usb {
dr_mode = "host";
#address-cells = <1>;
#size-cells = <0>;
/* 2.0 hub on port 1 */
hub_2_0: hub@1 {
compatible = "usb5e3,610";
reg = <1>;
peer-hub = <&hub_3_0>;
reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
vdd-supply = <&vcc_5v>;
};
/* 3.1 hub on port 4 */
hub_3_0: hub@2 {
compatible = "usb5e3,620";
reg = <2>;
peer-hub = <&hub_2_0>;
reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
vdd-supply = <&vcc_5v>;
};
};