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The Genesys Logic GL850G is a USB 2.0 Single TT hub controller that features 4 downstream ports, an internal 5V-to-3.3V LDO regulator (can be bypassed) and an external reset pin. Add a device tree binding for its USB protocol part. The internal LDO is not covered by this and can just be modelled as a fixed regulator. Signed-off-by: Icenowy Zheng <uwu@icenowy.me> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20221206055228.306074-3-uwu@icenowy.me Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
49 lines
918 B
YAML
49 lines
918 B
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 GL850G USB 2.0 hub controller
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maintainers:
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- Icenowy Zheng <uwu@icenowy.me>
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allOf:
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- $ref: usb-device.yaml#
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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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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 core power to the hub.
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required:
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- compatible
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- reg
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additionalProperties: 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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