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. Onboard USB hub supports USB 3.x and USB 2.0 peer controllers. which has a common reset pin and power supply. peer-hub phandle each peer controller with proper gpio reset and help each peer power on during initialization and power off during suspend. Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx> --- v4: Fix the description of peer-hub and update the commit message. Schematics of the Odroid N2+ https://dn.odroid.com/S922X/ODROID-N2/Schematic/odroid-n2_rev0.6_20210121.pdf V3: fix the dt_binding_check error, added new example for Genesys GL3523 v2: added Genesys GL3523 binding v1: none --- .../bindings/usb/genesys,gl850g.yaml | 67 +++++++++++++++++-- 1 file changed, 63 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml index ee08b9c3721f..bc3b3f4c8473 100644 --- a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml +++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml @@ -9,9 +9,6 @@ title: Genesys Logic USB hub controller maintainers: - Icenowy Zheng <uwu@xxxxxxxxxx> -allOf: - - $ref: usb-device.yaml# - properties: compatible: enum: @@ -27,12 +24,48 @@ properties: vdd-supply: description: - the regulator that provides 3.3V core power to the hub. + phandle to the regulator that provides power to the hub. + + peer-hub: + $ref: /schemas/types.yaml#/definitions/phandle + description: + onboard USB hub supports USB 3.x and USB 2.0 peer controllers. + which has a common reset pin and power supply. + peer-hub phandle each peer controller with proper gpio reset + and help each peer power on during initialization + and power off during suspend. required: - compatible - reg +allOf: + - $ref: usb-device.yaml# + - if: + properties: + compatible: + contains: + enum: + - usb5e3,608 + then: + properties: + peer-hub: false + vdd-supply: false + reset-gpios: true + + - if: + properties: + compatible: + contains: + enum: + - usb5e3,610 + - usb5e3,620 + then: + properties: + peer-hub: true + vdd-supply: true + reset-gpios: true + additionalProperties: false examples: @@ -49,3 +82,29 @@ 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>; + }; + }; -- 2.42.0
