diff options
| -rw-r--r-- | Documentation/devicetree/bindings/usb/smsc,usb3503.yaml | 108 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/usb/usb3503.txt | 39 |
2 files changed, 108 insertions, 39 deletions
diff --git a/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml b/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml new file mode 100644 index 000000000000..39228a506b93 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml @@ -0,0 +1,108 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/smsc,usb3503.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SMSC USB3503 High-Speed Hub Controller Device Tree Bindings + +maintainers: + - Dongjin Kim <tobetter@gmail.com> + +properties: + compatible: + enum: + - smsc,usb3503 + - smsc,usb3503a + + reg: + maxItems: 1 + + connect-gpios: + maxItems: 1 + description: > + GPIO for connect + + intn-gpios: + maxItems: 1 + description: > + GPIO for interrupt + + reset-gpios: + maxItems: 1 + description: > + GPIO for reset + + disabled-ports: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 3 + items: + minimum: 1 + maximum: 3 + description: > + Specifies the ports unused using their port number. Do not describe this + property if all ports have to be enabled. + + initial-mode: + enum: [1, 2] + description: > + Specifies initial mode. 1 for Hub mode, 2 for standby mode. + + clocks: + maxItems: 1 + description: > + Clock used for driving REFCLK signal. If not provided the driver assumes + that clock signal is always available, its rate is specified by REF_SEL + pins and a value from the primary reference clock frequencies table is + used. + + clock-names: + const: refclk + + refclk-frequency: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + Frequency of the REFCLK signal as defined by REF_SEL pins. If not + provided, driver will not set rate of the REFCLK signal and assume that a + value from the primary reference clock frequencies table is used. + +required: + - compatible + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + usb-hub@8 { + compatible = "smsc,usb3503"; + reg = <0x08>; + connect-gpios = <&gpx3 0 1>; + disabled-ports = <2 3>; + intn-gpios = <&gpx3 4 1>; + reset-gpios = <&gpx3 5 1>; + initial-mode = <1>; + clocks = <&clks 80>; + clock-names = "refclk"; + }; + }; + + - | + #include <dt-bindings/gpio/gpio.h> + + usb-hub { + /* I2C is not connected */ + compatible = "smsc,usb3503"; + initial-mode = <1>; /* initialize in HUB mode */ + disabled-ports = <1>; + intn-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */ + reset-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>; /* PE16 */ + connect-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */ + refclk-frequency = <19200000>; + }; + +... diff --git a/Documentation/devicetree/bindings/usb/usb3503.txt b/Documentation/devicetree/bindings/usb/usb3503.txt deleted file mode 100644 index 057dd384d473..000000000000 --- a/Documentation/devicetree/bindings/usb/usb3503.txt +++ /dev/null @@ -1,39 +0,0 @@ -SMSC USB3503 High-Speed Hub Controller - -Required properties: -- compatible: Should be "smsc,usb3503" or "smsc,usb3503a". - -Optional properties: -- reg: Specifies the i2c slave address, it is required and should be 0x08 - if I2C is used. -- connect-gpios: Should specify GPIO for connect. -- disabled-ports: Should specify the ports unused. - '1' or '2' or '3' are available for this property to describe the port - number. 1~3 property values are possible to be described. - Do not describe this property if all ports have to be enabled. -- intn-gpios: Should specify GPIO for interrupt. -- reset-gpios: Should specify GPIO for reset. -- initial-mode: Should specify initial mode. - (1 for HUB mode, 2 for STANDBY mode) -- refclk: Clock used for driving REFCLK signal (optional, if not provided - the driver assumes that clock signal is always available, its - rate is specified by REF_SEL pins and a value from the primary - reference clock frequencies table is used). Use clocks and - clock-names in order to assign it -- refclk-frequency: Frequency of the REFCLK signal as defined by REF_SEL - pins (optional, if not provided, driver will not set rate of the - REFCLK signal and assume that a value from the primary reference - clock frequencies table is used) - -Examples: - usb3503@8 { - compatible = "smsc,usb3503"; - reg = <0x08>; - connect-gpios = <&gpx3 0 1>; - disabled-ports = <2 3>; - intn-gpios = <&gpx3 4 1>; - reset-gpios = <&gpx3 5 1>; - initial-mode = <1>; - clocks = <&clks 80>; - clock-names = "refclk"; - }; |