Messages in this thread Patch in this message | | | From | Yossi Mansharoff <> | Subject | [PATCH v2] doc: usb: ci-hdrc-usb2: Add property "mux-controls" | Date | Tue, 17 Apr 2018 16:53:25 +0300 |
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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: Yossi Mansharoff <yossim@codeaurora.org> --- Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index 0e03344..2e93181 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -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"; }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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