From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter.chen@freescale.com (Peter Chen) Date: Mon, 14 Dec 2015 15:26:13 +0800 Subject: [PATCH v2 2/3] doc: dt-binding: generic onboard USB HUB In-Reply-To: <1450077974-22762-1-git-send-email-peter.chen@freescale.com> References: <1450077974-22762-1-git-send-email-peter.chen@freescale.com> Message-ID: <1450077974-22762-3-git-send-email-peter.chen@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add dt-binding documentation for generic onboard USB HUB. Signed-off-by: Peter Chen --- .../devicetree/bindings/usb/generic-onboard-hub.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/generic-onboard-hub.txt diff --git a/Documentation/devicetree/bindings/usb/generic-onboard-hub.txt b/Documentation/devicetree/bindings/usb/generic-onboard-hub.txt new file mode 100644 index 0000000..d19d912 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/generic-onboard-hub.txt @@ -0,0 +1,20 @@ +Generic Onboard USB HUB + +Required properties: +- compatible: should be "generic-onboard-hub" + +Optional properties: +- clocks: the input clock for USB HUB. +- clock-frequency: the frequency for HUB's clock. +- reset-gpios: Should specify the GPIO for reset. +- reset-duration-us: the duration for assert reset signal, the time unit + is microsecond. + +Example: + + usb_hub1 { + compatible = "generic-onboard-hub"; + clocks = <&clks IMX6QDL_CLK_CKO>; + reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>; + hub-reset-duration-us = <2>; + }; -- 1.9.1