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Commit a8a52677 authored by Serge Semin's avatar Serge Semin Committed by Greg Kroah-Hartman
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usb: usb251xb: Update usb251xb bindings 



Since hub usb2517 is going to be supported by the usb251xb driver,
the bindings need to be properly updated. Particularly:
- add "microchip,usb2517" and "microchip,usb2517i" compatible strings.
- add "boolean" description to all the properties, which really accept
a boolean value including a new one "led-{usb,speed}-mode".
- move reset-gpios property to the optional section. It isn't
defined as required in the code and shouldn't be required at all, since
hardware may handle reset pins by itself.
- add new led-{usb,speed}-mode mode property. USB2517 device supports
two LED modes: USB mode and speed (default) indication mode. The last one
can be switched on by this property.
- add {bp,sp}-max-{total,removable}-current-microamp property measured in
microamp. It hasn't been defined as property before. Since the limitation
specified by these parameters is hardware specific it needs to be defined
in dts.

Signed-off-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9b796ffc

Documentation/devicetree/bindings/usb/usb251xb.txt

+32 −14
Original line number Diff line number Diff line 
Microchip USB 2.0 Hi-Speed Hub Controller



The device node for the configuration of a Microchip USB251xB/xBi USB 2.0

The device node for the configuration of a Microchip USB251x/xBi USB 2.0

Hi-Speed Controller.



Required properties :

 - compatible : Should be "microchip,usb251xb" or one of the specific types:

	"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",

	"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi"

 - reset-gpios : Should specify the gpio for hub reset

	"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi",

	"microchip,usb2517", "microchip,usb2517i"

 - reg : I2C address on the selected bus (default is <0x2C>)



Optional properties :

 - reset-gpios : Should specify the gpio for hub reset

 - skip-config : Skip Hub configuration, but only send the USB-Attach command

 - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)

 - product-id : Set USB Product ID of the hub (16 bit, default depends on type)
@@ -19,29 +20,47 @@ Optional properties : 
 - manufacturer : Set USB Manufacturer string (max 31 characters long)

 - product : Set USB Product string (max 31 characters long)

 - serial : Set USB Serial string (max 31 characters long)

 - {bus,self}-powered : selects between self- and bus-powered operation (default

	is self-powered)

 - disable-hi-speed : disable USB Hi-Speed support

 - {bus,self}-powered : selects between self- and bus-powered operation

	(boolean, default is self-powered)

 - disable-hi-speed : disable USB Hi-Speed support (boolean)

 - {multi,single}-tt : selects between multi- and single-transaction-translator

	(default is multi-tt)

 - disable-eop : disable End of Packet generation in full-speed mode

	(boolean, default is multi-tt)

 - disable-eop : disable End of Packet generation in full-speed mode (boolean)

 - {ganged,individual}-sensing : select over-current sense type in self-powered

	mode (default is individual)

	mode (boolean, default is individual)

 - {ganged,individual}-port-switching : select port power switching mode

	(default is individual)

	(boolean, default is individual)

 - dynamic-power-switching : enable auto-switching from self- to bus-powered

	operation if the local power source is removed or unavailable

	operation if the local power source is removed or unavailable (boolean)

 - oc-delay-us : Delay time (in microseconds) for filtering the over-current

	sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If

	an invalid value is given, the default is used instead.

 - compound-device : indicate the hub is part of a compound device

 - port-mapping-mode : enable port mapping mode

 - compound-device : indicate the hub is part of a compound device (boolean)

 - port-mapping-mode : enable port mapping mode (boolean)

 - led-{usb,speed}-mode : led usb/speed indication mode selection

	(boolean, default is speed mode)

 - string-support : enable string descriptor support (required for manufacturer,

	product and serial string configuration)

 - non-removable-ports : Should specify the ports which have a non-removable

	device connected.

 - sp-disabled-ports : Specifies the ports which will be self-power disabled

 - bp-disabled-ports : Specifies the ports which will be bus-power disabled

 - sp-max-total-current-microamp: Specifies max current consumed by the hub

	from VBUS when operating in self-powered hub. It includes the hub

	silicon along with all associated circuitry including a permanently

	attached peripheral (range: 0 - 100000 uA, default 1000 uA)

 - bp-max-total-current-microamp: Specifies max current consumed by the hub

	from VBUS when operating in self-powered hub. It includes the hub

	silicon along with all associated circuitry including a permanently

	attached peripheral (range: 0 - 510000 uA, default 100000 uA)

 - sp-max-removable-current-microamp: Specifies max current consumed by the hub

	from VBUS when operating in self-powered hub. It includes the hub

	silicon along with all associated circuitry excluding a permanently

	attached peripheral (range: 0 - 100000 uA, default 1000 uA)

 - bp-max-removable-current-microamp: Specifies max current consumed by the hub

	from VBUS when operating in self-powered hub. It includes the hub

	silicon along with all associated circuitry excluding a permanently

	attached peripheral (range: 0 - 510000 uA, default 100000 uA)

 - power-on-time-ms : Specifies the time it takes from the time the host

	initiates the power-on sequence to a port until the port has adequate

	power. The value is given in ms in a 0 - 510 range (default is 100ms).
@@ -56,7 +75,6 @@ Examples: 
	usb2514b@2c {

		compatible = "microchip,usb2514b";

		reg = <0x2c>;

		reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;

		vendor-id = /bits/ 16 <0x0000>;

		product-id = /bits/ 16 <0x0000>;

		string-support;