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usb: chipidea: msm: Add device tree binding information

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Document device tree binding information as required by
the Qualcomm USB controller.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ivan T. Ivanov 2014-05-04 09:24:40 +08:00 committed by Greg Kroah-Hartman
parent 33f92a8a92
commit a33d8ce729
1 changed files with 17 additions and 0 deletions
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17
Documentation/devicetree/bindings/usb/ci-hdrc-qcom.txt Normal file
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Qualcomm CI13xxx (Chipidea) USB controllers
Required properties:
- compatible: should contain "qcom,ci-hdrc"
- reg: offset and length of the register set in the memory map
- interrupts: interrupt-specifier for the controller interrupt.
- usb-phy: phandle for the PHY device
- dr_mode: Should be "peripheral"
Examples:
gadget@f9a55000 {
compatible = "qcom,ci-hdrc";
reg = <0xf9a55000 0x400>;
dr_mode = "peripheral";
interrupts = <0 134 0>;
usb-phy = <&usbphy0>;
};