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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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246fef761a
In order to describe connections between Genesys GL850G hub and corresponding Type-C connectors, follow example of RTS5411 and describe downstream facing ports. Unline normal case of ports being connected to a USB device, hotplug ports use OF graph representation. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Link: https://lore.kernel.org/r/20250608-genesys-ports-v1-2-09ca19f6838e@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
114 lines
2.2 KiB
YAML
114 lines
2.2 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/genesys,gl850g.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Genesys Logic USB hub controller
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maintainers:
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- Icenowy Zheng <uwu@icenowy.me>
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properties:
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compatible:
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enum:
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- usb5e3,608
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- usb5e3,610
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- usb5e3,620
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- usb5e3,626
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reg: true
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reset-gpios:
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description: GPIO controlling the RESET# pin.
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vdd-supply:
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description:
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The regulator that provides 3.3V or 5.0V core power to the hub.
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peer-hub: true
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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patternProperties:
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'^port@':
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$ref: /schemas/graph.yaml#/properties/port
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properties:
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reg:
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minimum: 1
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maximum: 4
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required:
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- compatible
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- reg
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allOf:
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- $ref: usb-hub.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- usb5e3,608
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then:
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properties:
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peer-hub: false
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vdd-supply: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- usb5e3,610
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- usb5e3,620
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then:
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properties:
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peer-hub: true
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vdd-supply: true
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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usb {
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dr_mode = "host";
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#address-cells = <1>;
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#size-cells = <0>;
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hub: hub@1 {
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compatible = "usb5e3,608";
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reg = <1>;
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reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>;
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};
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};
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- |
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#include <dt-bindings/gpio/gpio.h>
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usb {
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dr_mode = "host";
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#address-cells = <1>;
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#size-cells = <0>;
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/* 2.0 hub on port 1 */
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hub_2_0: hub@1 {
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compatible = "usb5e3,610";
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reg = <1>;
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peer-hub = <&hub_3_0>;
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reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
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vdd-supply = <&vcc_5v>;
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};
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/* 3.1 hub on port 4 */
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hub_3_0: hub@2 {
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compatible = "usb5e3,620";
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reg = <2>;
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peer-hub = <&hub_2_0>;
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reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
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vdd-supply = <&vcc_5v>;
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};
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};
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