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Doc: usb: ci-hdrc-usb2: add itc-setting at binding doc

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It is used to configure the ITC (in register USBCMD) value
for kinds of applications.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
This commit is contained in:
Peter Chen 2015-07-15 13:53:05 +08:00
parent bf9c85e78d
commit 1bd57127d4
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
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@ -30,6 +30,8 @@ Optional properties:
argument that indicate usb controller index
- disable-over-current: (FSL only) disable over current detect
- external-vbus-divider: (FSL only) enables off-chip resistor divider for Vbus
- itc-setting: interrupt threshold control register control, the setting
should be aligned with ITC bits at register USBCMD.
Example:
@ -41,4 +43,5 @@ Example:
phys = <&usb_phy0>;
phy-names = "usb-phy";
vbus-supply = <&reg_usb0_vbus>;
gadget-itc-setting = <0x4>; /* 4 micro-frames */
};