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. Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx> --- V6: fix the description of the regulators Updated the commit message for regulator updates. add reviewed by Conor Dooley [1] https://lore.kernel.org/all/20231130053130.21966-2-linux.amoon@xxxxxxxxx/ v5: upgrade peer-hub description : Conor Dooley [0] https://www.genesyslogic.com.tw/en/product_view.php?show=67 [Block Diagram] 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 | 65 +++++++++++++++++-- 1 file changed, 61 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml index ee08b9c3721f..c6f63a69396d 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 +24,46 @@ 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: + 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 + 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 +80,29 @@ 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
