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[01/12] Doc: usb: ci-hdrc-imx: add gadget-itc-setting for binding doc

Message ID 1426727963-32280-2-git-send-email-peter.chen@freescale.com
State New, archived
Headers show

Commit Message

Peter Chen March 19, 2015, 1:19 a.m. UTC
It is used to configure the ITC (in register USBCMD) value
for gadget mode.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
---
 Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
index 38a5480..c21171e 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
@@ -20,6 +20,8 @@  Optional properties:
 - external-vbus-divider: enables off-chip resistor divider for Vbus
 - maximum-speed: limit the maximum connection speed to "full-speed".
 - tpl-support: TPL (Targeted Peripheral List) feature for targeted hosts
+- gadget-itc-setting: the ITC setting for gadget, the required value
+  should be aligned with ITC bits at register USBCMD.
 
 Examples:
 usb@02184000 { /* USB OTG */
@@ -32,4 +34,5 @@  usb@02184000 { /* USB OTG */
 	external-vbus-divider;
 	maximum-speed = "full-speed";
 	tpl-support;
+	gadget-itc-setting = <0x4>; /* 4 micro-frames */
 };