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authorMichael Grzeschik <m.grzeschik@pengutronix.de>2014-02-19 13:41:43 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-24 17:07:52 -0800
commit4f6743d5ca97ac66831add302cc5467db4ee3809 (patch)
tree83fa601c662360f5f52c80421267a271317a509f /Documentation
parentfad56745a641750745d85f59d5cc640a1a4c1719 (diff)
usb: chipidea: udc: add maximum-speed = full-speed option
This patch makes it possible to set the chipidea udc into full-speed only mode. It is set by the oftree property "maximum-speed = full-speed". Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
index b4b5b7906c88..a6a32cb7f777 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
@@ -18,6 +18,7 @@ Optional properties:
- vbus-supply: regulator for vbus
- disable-over-current: disable over current detect
- external-vbus-divider: enables off-chip resistor divider for Vbus
+- maximum-speed: limit the maximum connection speed to "full-speed".
Examples:
usb@02184000 { /* USB OTG */
@@ -28,4 +29,5 @@ usb@02184000 { /* USB OTG */
fsl,usbmisc = <&usbmisc 0>;
disable-over-current;
external-vbus-divider;
+ maximum-speed = "full-speed";
};