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Commit 7eced58d authored by Yossi Mansharoff's avatar Yossi Mansharoff Committed by Greg Kroah-Hartman
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doc: usb: ci-hdrc-usb2: Add property "mux-controls" 



The chipidea usb controller may be connected, in some platforms,
to an external mux to toggle between different usb ports for
different roles (host and device).

The mux-controller property, if set, binds the chipidea usb
controller with a mux for this use.

Signed-off-by: default avatarYossi Mansharoff <yossim@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6e01827e

Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt

+6 −0
Original line number Diff line number Diff line
@@ -76,6 +76,10 @@ Optional properties: 
  needs to make sure it does not send more than 90%

  maximum_periodic_data_per_frame. The use case is multiple transactions, but

  less frame rate.

- mux-controls: The mux control for toggling host/device output of this

  controller. It's expected that a mux state of 0 indicates device mode and a

  mux state of 1 indicates host mode.

- mux-control-names: Shall be "usb_switch" if mux-controls is specified.



i.mx specific properties

- fsl,usbmisc: phandler of non-core register device, with one
@@ -102,4 +106,6 @@ Example: 
		rx-burst-size-dword = <0x10>;

		extcon = <0>, <&usb_id>;

		phy-clkgate-delay-us = <400>;

		mux-controls = <&usb_switch>;

		mux-control-names = "usb_switch";

	};