diff options
Diffstat (limited to 'dts/Bindings/usb/smsc,usb3503.yaml')
-rw-r--r-- | dts/Bindings/usb/smsc,usb3503.yaml | 56 |
1 files changed, 53 insertions, 3 deletions
diff --git a/dts/Bindings/usb/smsc,usb3503.yaml b/dts/Bindings/usb/smsc,usb3503.yaml index 321b6f1661..6156dc26e6 100644 --- a/dts/Bindings/usb/smsc,usb3503.yaml +++ b/dts/Bindings/usb/smsc,usb3503.yaml @@ -4,7 +4,7 @@ $id: http://devicetree.org/schemas/usb/smsc,usb3503.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: SMSC USB3503 High-Speed Hub Controller Device Tree Bindings +title: SMSC USB3503 High-Speed Hub Controller maintainers: - Dongjin Kim <tobetter@gmail.com> @@ -14,6 +14,7 @@ properties: enum: - smsc,usb3503 - smsc,usb3503a + - smsc,usb3803 reg: maxItems: 1 @@ -33,6 +34,12 @@ properties: description: > GPIO for reset + bypass-gpios: + maxItems: 1 + description: > + GPIO for bypass. + Control signal to select between HUB MODE and BYPASS MODE. + disabled-ports: $ref: /schemas/types.yaml#/definitions/uint32-array minItems: 1 @@ -46,9 +53,10 @@ properties: initial-mode: $ref: /schemas/types.yaml#/definitions/uint32 - enum: [1, 2] description: > - Specifies initial mode. 1 for Hub mode, 2 for standby mode. + Specifies initial mode. 1 for Hub mode, 2 for standby mode and 3 for bypass mode. + In bypass mode the downstream port 3 is connected to the upstream port with low + switch resistance R_on. clocks: maxItems: 1 @@ -71,6 +79,29 @@ properties: required: - compatible +allOf: + - if: + not: + properties: + compatible: + enum: + - smsc,usb3803 + then: + properties: + bypass-gpios: false + + - if: + required: + - bypass-gpios + then: + properties: + initial-mode: + enum: [1, 2, 3] + else: + properties: + initial-mode: + enum: [1, 2] + additionalProperties: false examples: @@ -93,6 +124,25 @@ examples: }; - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + usb-hub@8 { + compatible = "smsc,usb3803"; + reg = <0x08>; + connect-gpios = <&gpx3 0 1>; + disabled-ports = <2 3>; + intn-gpios = <&gpx3 4 1>; + reset-gpios = <&gpx3 5 1>; + bypass-gpios = <&gpx3 6 1>; + initial-mode = <3>; + clocks = <&clks 80>; + clock-names = "refclk"; + }; + }; + + - | #include <dt-bindings/gpio/gpio.h> usb-hub { |