| Message ID | 20221206055228.306074-3-uwu@icenowy.me (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Rongpin RP-H6B support (and support for GL850G) | expand |
On 06/12/2022 06:52, Icenowy Zheng wrote: > 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> Best regards, Krzysztof
On 06/12/2022 06:52, Icenowy Zheng wrote: > 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. If there is going to be resend: Subject: drop second, redundant "binding for" (so: "Add Genesys Logic....") > > 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> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml new file mode 100644 index 000000000000..a9f831448cca --- /dev/null +++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/genesys,gl850g.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Genesys Logic GL850G USB 2.0 hub controller + +maintainers: + - Icenowy Zheng <uwu@icenowy.me> + +allOf: + - $ref: usb-device.yaml# + +properties: + compatible: + enum: + - usb5e3,608 + + reg: true + + reset-gpios: + description: GPIO controlling the RESET# pin. + + vdd-supply: + description: + the regulator that provides 3.3V core power to the hub. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + usb { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + + hub: hub@1 { + compatible = "usb5e3,608"; + reg = <1>; + reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>; + }; + };
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> --- Changes in v3: - Re-introduce GPIO flags. Changes in v2: - Misc fixes suggested by Krzysztof, including property descriptions, single-item "items" and fixing the example's gpio property. - Fixed $id. .../bindings/usb/genesys,gl850g.yaml | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/genesys,gl850g.yaml