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Tue, 27 Nov 2018 09:31:02 +0000 Received: from VI1PR04MB5327.eurprd04.prod.outlook.com ([fe80::811d:1992:9a6a:bb3f]) by VI1PR04MB5327.eurprd04.prod.outlook.com ([fe80::811d:1992:9a6a:bb3f%4]) with mapi id 15.20.1361.019; Tue, 27 Nov 2018 09:31:02 +0000 From: PETER CHEN To: "linux-usb@vger.kernel.org" CC: dl-linux-imx , "robh+dt@kernel.org" , "devicetree@vger.kernel.org" , "frieder.schrempf@exceet.de" , "festevam@gmail.com" , PETER CHEN Subject: [PATCH v3 4/4] doc: usb: ci-hdrc-usb2: Add pinctrl properties for HSIC pin groups Thread-Topic: [PATCH v3 4/4] doc: usb: ci-hdrc-usb2: Add pinctrl properties for HSIC pin groups Thread-Index: AQHUhjPp9zcP+WWZkk6DbHv+3RCIuQ== Date: Tue, 27 Nov 2018 09:31:02 +0000 Message-ID: <20181127092824.22756-5-peter.chen@nxp.com> References: <20181127092824.22756-1-peter.chen@nxp.com> In-Reply-To: <20181127092824.22756-1-peter.chen@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.14.1 x-clientproxiedby: HK2PR06CA0011.apcprd06.prod.outlook.com (2603:1096:202:2e::23) To VI1PR04MB5327.eurprd04.prod.outlook.com (2603:10a6:803:60::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=peter.chen@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: nSCqvKje4OREhkTr7HakJcnWZm7ouv9kQyb7HAzvMNyWixi39+eRodjrmjRDvMXTk607jkVXIsjtjww6knNiWhvPEruZmRMPKjwV9PyriEGkxuZHyE7uncxlmfmjiWNTcm/wpZIzhrauRa9jkuK/yTjQo1Ln7GOINRm8BcWcF80+mNC73hJ/FvNGBNgHS+2UUwAsrxSgfPaYkY+RkKFaOsKS+XjqqTAN+vwx70yBIPLXBdkW9HgzJUTmDCwppI8b9r5FOntVfyaYZoGu2vaPw5FAgowM6F0FLG2U+QZiKb1yIoUsSO6iAO+P0YWrLMLxDaPZu9kDud8k6tiAIGQi+C6/0h3STlAc+CH1Rh1hy+A= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7127a67f-2379-469f-fbf3-08d6544b0c3e X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Nov 2018 09:31:02.6582 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB3102 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP For USB HSIC, the data and strobe pin needs to be pulled down at default, we consider it as "idle" state. When the USB host is ready to be used, the strobe pin needs to be pulled up, we consider it as "active" state. Signed-off-by: Peter Chen --- Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index 529e51879fb2..1e5e7ddfb1a5 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -80,7 +80,10 @@ Optional properties: controller. It's expected that a mux state of 0 indicates device mode and a mux state of 1 indicates host mode. - mux-control-names: Shall be "usb_switch" if mux-controls is specified. -- pinctrl-names: Names for optional pin modes in "default", "host", "device" +- pinctrl-names: Names for optional pin modes in "default", "host", "device". + In case of HSIC-mode, "idle" and "active" pin modes are mandatory. In this + case, the "idle" state needs to pull down the data and strobe pin + and the "active" state needs to pull up the strobe pin. - pinctrl-n: alternate pin modes i.mx specific properties @@ -110,4 +113,7 @@ Example: phy-clkgate-delay-us = <400>; mux-controls = <&usb_switch>; mux-control-names = "usb_switch"; + pinctrl-names = "idle", "active"; + pinctrl-0 = <&pinctrl_usbh2_1>; + pinctrl-1 = <&pinctrl_usbh2_2>; };