From 92bb0943b184abdb6a7b029a8a409a88bb79111e Mon Sep 17 00:00:00 2001 From: Li Jun Date: Wed, 24 May 2017 22:45:36 +0800 Subject: MLK-14947-3 usb: doc: chipidea: imx: add power-polarity-active-high property USB host vbus control can be via port power(PP) bit of ehci, there is a polarity setting in controller register for this signal, if power supply chip use active high, add this property. Acked-by: Peter Chen Signed-off-by: Li Jun --- Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/devicetree/bindings/usb') diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index db7bc373b528..cfe0be612eba 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -96,6 +96,9 @@ i.mx specific properties - osc-clkgate-delay: the delay between powering up the xtal 24MHz clock and release the clock to the digital logic inside the analog block, 0 <= osc-clkgate-delay <= 7. +- power-polarity-active-high: add this property if port power function of ehci + is used to enable vbus, and the vbus power supply chip enable signal is high + active. Examples: -- cgit v1.2.3