forked from Minki/linux
cfa47afe77
Remove the max_{power,current}_{sp,bp} properties of the usb251xb driver
from devicetree. This is done to simplify the dt bindings as requested
by Rob Herring in https://lkml.org/lkml/2017/2/15/1283. If those
properties are ever needed by somebody they can be enabled again easily.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
64 lines
2.8 KiB
Plaintext
64 lines
2.8 KiB
Plaintext
Microchip USB 2.0 Hi-Speed Hub Controller
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The device node for the configuration of a Microchip USB251xB/xBi USB 2.0
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Hi-Speed Controller.
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Required properties :
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- compatible : Should be "microchip,usb251xb" or one of the specific types:
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"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
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"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi"
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- hub-reset-gpios : Should specify the gpio for hub reset
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Optional properties :
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- reg : I2C address on the selected bus (default is <0x2C>)
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- skip-config : Skip Hub configuration, but only send the USB-Attach command
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- vendor-id : USB Vendor ID of the hub (16 bit, default is 0x0424)
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- product-id : USB Product ID of the hub (16 bit, default depends on type)
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- device-id : USB Device ID of the hub (16 bit, default is 0x0bb3)
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- language-id : USB Language ID (16 bit, default is 0x0000)
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- manufacturer : USB Manufacturer string (max 31 characters long)
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- product : USB Product string (max 31 characters long)
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- serial : USB Serial string (max 31 characters long)
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- {bus,self}-powered : selects between self- and bus-powered operation (default
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is self-powered)
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- disable-hi-speed : disable USB Hi-Speed support
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- {multi,single}-tt : selects between multi- and single-transaction-translator
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(default is multi-tt)
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- disable-eop : disable End of Packet generation in full-speed mode
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- {ganged,individual}-sensing : select over-current sense type in self-powered
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mode (default is individual)
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- {ganged,individual}-port-switching : select port power switching mode
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(default is individual)
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- dynamic-power-switching : enable auto-switching from self- to bus-powered
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operation if the local power source is removed or unavailable
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- oc-delay-{100us,4ms,8ms,16ms} : set over current timer delay (default is 8ms)
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- compound-device : indicated the hub is part of a compound device
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- port-mapping-mode : enable port mapping mode
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- string-support : enable string descriptor support (required for manufacturer,
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product and serial string configuration)
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- non-removable-ports : Should specify the ports which have a non-removable
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device connected.
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- sp-disabled-ports : Specifies the ports which will be self-power disabled
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- bp-disabled-ports : Specifies the ports which will be bus-power disabled
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- power-on-time : Specifies the time it takes from the time the host initiates
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the power-on sequence to a port until the port has adequate power. The
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value is given in ms in a 0 - 510 range (default is 100ms).
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Examples:
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usb2512b@2c {
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compatible = "microchip,usb2512b";
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hub-reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
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};
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usb2514b@2c {
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compatible = "microchip,usb2514b";
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reg = <0x2c>;
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reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
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vendor-id = /bits/ 16 <0x0000>;
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product-id = /bits/ 16 <0x0000>;
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string-support;
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manufacturer = "Foo";
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product = "Foo-Bar";
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serial = "1234567890A";
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};
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