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Tue, 20 Nov 2018 08:08:36 +0000 Received: from BN6PR1101MB2243.namprd11.prod.outlook.com ([fe80::853f:28dc:6c66:cfb1]) by BN6PR1101MB2243.namprd11.prod.outlook.com ([fe80::853f:28dc:6c66:cfb1%4]) with mapi id 15.20.1339.026; Tue, 20 Nov 2018 08:08:36 +0000 From: To: , , , , CC: , , , , , , Subject: [PATCH v2 1/2] dt-bindings: gpio: add SAMA5D2 PIOBU support Thread-Topic: [PATCH v2 1/2] dt-bindings: gpio: add SAMA5D2 PIOBU support Thread-Index: AQHUgKg8JYSs1TI8IUy9lTCXxs8Now== Date: Tue, 20 Nov 2018 08:08:36 +0000 Message-ID: <1542701330-23466-2-git-send-email-andrei.stefanescu@microchip.com> References: <1542701330-23466-1-git-send-email-andrei.stefanescu@microchip.com> In-Reply-To: <1542701330-23466-1-git-send-email-andrei.stefanescu@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR07CA0183.eurprd07.prod.outlook.com (2603:10a6:802:3e::31) To BN6PR1101MB2243.namprd11.prod.outlook.com (2603:10b6:405:52::19) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Andrei.Stefanescu@microchip.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:BN6PR1101MB2260; H:BN6PR1101MB2243.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: Q22N84UZXWMSTXHMgYa24MVGjM/QuEaIkM7KidWHDfyDj7U4oRzNyWoFop3mwuIHvRalPUsWTnYxZx+dN4Ge+4/ymhzXTqTbUKiwgecoNVunHR/gTCrG8Sf0tC8GEKHxwNNqJxm0wc1/RZyKRQCob2cBO/9Lr1rGzkB8Gc5MXFDTFLyLwIYKUS0oHLzyVFRQCMi5W1bjqrmKzkr6Ot0lxJ0yKUJYDv72ZQPIWlIX/leV78wIR84uUou9OOcjMeKdevYZaKbsl407seLSJ+yiqCOw2CSf0h6cFQF/hO+qhfGXc7WfBIrzOETQxK8m+QYT9w45EXDKEpCyv1VBTdJ59/ju4XnYnYRkRwh2nL0+03k= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 50511eff-ca72-4852-60f2-08d64ebf5efc X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Nov 2018 08:08:36.2884 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR1101MB2260 X-OriginatorOrg: microchip.com Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch describes the compatible and the device tree bindings necessary for the SAMA5D2 PIOBU GPIO. Signed-off-by: Andrei Stefanescu --- .../bindings/gpio/gpio-sama5d2-piobu.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt new file mode 100644 index 0000000..2e260e1 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt @@ -0,0 +1,31 @@ +GPIO controller for SAMA5D2 PIOBU pins. + +These pins have the property of not losing their voltage +during Backup/Self-refresh mode. + +These bindings should be set to a node in the dtsi file. + +Required properties: +- compatible: "syscon", "microchip,sama5d2-piobu" +- #gpio-cells: There are 2. The pin number is the + first, the second represents additional + parameters such as GPIO_ACTIVE_HIGH/LOW. +- gpio-controller: Marks the port as GPIO controller. + +Note that the driver uses syscon and should be the child of +the syscon node. + +Example: + + secumod@fc040000 { + compatible = "atmel,sama5d2-secumod", "syscon", "simple-mfd"; + status = "okay"; + reg = <0xfc040000 0x100>; + + pioBU: piobu { + status = "okay"; + compatible = "microchip,sama5d2-piobu"; + gpio-controller; + #gpio-cells = <2>; + }; + };