Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753342AbbHVBqz (ORCPT ); Fri, 21 Aug 2015 21:46:55 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:38925 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752890AbbHVBp3 (ORCPT ); Fri, 21 Aug 2015 21:45:29 -0400 X-Listener-Flag: 11101 From: Chunfeng Yun To: Mathias Nyman CC: Rob Herring , Mark Rutland , Matthias Brugger , Felipe Balbi , Chunfeng Yun , Sascha Hauer , , , , Roger Quadros , , , John Crispin , Daniel Kurtz , Sergei Shtylyov , Kishon Vijay Abraham I Subject: [PATCH v6 1/5] dt-bindings: Add usb3.0 phy binding for MT65xx SoCs Date: Sat, 22 Aug 2015 09:45:07 +0800 Message-ID: <1440207911-17666-2-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1440207911-17666-1-git-send-email-chunfeng.yun@mediatek.com> References: <1440207911-17666-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2792 Lines: 92 add a DT binding documentation of usb3.0 phy for MT65xx SoCs from Mediatek. Signed-off-by: Chunfeng Yun --- .../devicetree/bindings/phy/phy-mt65xx-usb.txt | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt diff --git a/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt new file mode 100644 index 0000000..5812d20 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt @@ -0,0 +1,69 @@ +mt65xx USB3.0 PHY binding +-------------------------- + +This binding describes a usb3.0 phy for mt65xx platforms of Medaitek SoC. + +Required properties (controller (parent) node): + - compatible : should be "mediatek,mt8173-u3phy" + - reg : offset and length of register for phy, exclude port's + register. + - clocks : a list of phandle + clock-specifier pairs, one for each + entry in clock-names + - clock-names : must contain + "u3phya_ref": for reference clock of usb3.0 analog phy. + +Required nodes : a sub-node is required for each port the controller + provides. Address range information including the usual + 'reg' property is used inside these nodes to describe + the controller's topology. These nodes are translated + by the driver's .xlate() function. + +Required properties (port (child) node): +- reg : address and length of the register set for the port. +- #phy-cells : should be 1 (See second example) + cell after port phandle is phy type from: + - PHY_TYPE_USB2 + - PHY_TYPE_USB3 + +Example: + +u3phy: usb-phy@11290000 { + compatible = "mediatek,mt8173-u3phy"; + reg = <0 0x11290000 0 0x800>; + clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>; + clock-names = "u3phya_ref"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + status = "okay"; + + phy_port0: port@11290800 { + reg = <0 0x11290800 0 0x800>; + #phy-cells = <1>; + status = "okay"; + }; + + phy_port1: port@11291000 { + reg = <0 0x11291000 0 0x800>; + #phy-cells = <1>; + status = "okay"; + }; +}; + +Specifying phy control of devices +--------------------------------- + +Device nodes should specify the configuration required in their "phys" +property, containing a phandle to the phy port node and a device type; +phy-names for each port are optional. + +Example: + +#include + +usb30: usb@11270000 { + ... + phys = <&phy_port0 PHY_TYPE_USB3>; + phy-names = "usb3-0"; + ... +}; -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/