From patchwork Thu May 9 13:29:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1097516 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="f/JFlPyS"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 450Dhp3SvRz9s7h for ; Thu, 9 May 2019 23:29:30 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726657AbfEIN30 (ORCPT ); Thu, 9 May 2019 09:29:26 -0400 Received: from mail-eopbgr10043.outbound.protection.outlook.com ([40.107.1.43]:1620 "EHLO EUR02-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726415AbfEIN3Z (ORCPT ); Thu, 9 May 2019 09:29:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=CMyZSRZWP9Hc0YpaV+W80epMlNnE3Yn644AfS+cx86o=; b=f/JFlPyS58l0q8JOcqP5w7tl1zLkgBcxGyQ6nd52Ds0s5CfFBKtvdJzUbsSgwMV0IVCPeMBtKm063h8lgNhWgfAkZbHp8h2bR6S69VvDp1jiLLFrCWorSzICsohOeq6bVzdEmbZYPfonucDXik1NI/dDa5MqI5aB47s2EN1tf2I= Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com (52.134.72.18) by DB3PR0402MB3673.eurprd04.prod.outlook.com (52.134.70.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1856.11; Thu, 9 May 2019 13:29:19 +0000 Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::d035:3bd0:a56a:189d]) by DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::d035:3bd0:a56a:189d%2]) with mapi id 15.20.1878.022; Thu, 9 May 2019 13:29:19 +0000 From: Anson Huang To: "thierry.reding@gmail.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "linux@armlinux.org.uk" , "otavio@ossystems.com.br" , Leonard Crestez , Robin Gong , "schnitzeltony@gmail.com" , "u.kleine-koenig@pengutronix.de" , "jan.tuerk@emtrion.com" , "linux-pwm@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" CC: dl-linux-imx Subject: [PATCH V12 1/5] dt-bindings: pwm: Add i.MX TPM PWM binding Thread-Topic: [PATCH V12 1/5] dt-bindings: pwm: Add i.MX TPM PWM binding Thread-Index: AQHVBms0dpnXU0ejkkq6UgSdEVVQow== Date: Thu, 9 May 2019 13:29:19 +0000 Message-ID: <1557408252-21281-2-git-send-email-Anson.Huang@nxp.com> References: <1557408252-21281-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1557408252-21281-1-git-send-email-Anson.Huang@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK0P153CA0001.APCP153.PROD.OUTLOOK.COM (2603:1096:203:18::13) To DB3PR0402MB3916.eurprd04.prod.outlook.com (2603:10a6:8:10::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=anson.huang@nxp.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:DB3PR0402MB3673; H:DB3PR0402MB3916.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: ghvkvIUxi5m0LqEzCIjIdZWp/QsmwJNlBdAdqlPkwHA3JhCYNXo9nu6FJZWAAWMneowirbhSAEHNAgGxJIHE04NbzEZetgHBhUYNH1aAEwxJupA+hrNE9s99/NKFqAo05CqOG+S5t8JwF5yEQpgiVcjYD3xDeG+01K7NGEowG7UPRd7UW5eOqKySpnk+8yIsmMU3FnfeXmUhq2r33uzYzVwCE67hZlQaopco7DwQ2Xi0fRE6FVJnMAIKmFheDupeJYIoPULuvk5/jwcgoLK+JZbl6vbiRn9xM8eRqeL3MjSbJ6/mN7AMjwNDdTQ+u2Fq+VtI0miamSKWv0C5fG0maq+f2hq6QwtGolCkjekphhJOUnbQ9mfME9lo03DryeLeCgfYUU+j9Zdkt8oQ50F/JqYUZs170+GH0HV4JARbd/U= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: f43042c2-aeed-413b-300f-08d6d482570f X-MS-Exchange-CrossTenant-originalarrivaltime: 09 May 2019 13:29:19.4836 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB3PR0402MB3673 Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org Add i.MX TPM(Low Power Timer/Pulse Width Modulation Module) PWM binding. Signed-off-by: Anson Huang Reviewed-by: Rob Herring --- No change. --- .../devicetree/bindings/pwm/imx-tpm-pwm.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt diff --git a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt new file mode 100644 index 0000000..3ba958d --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt @@ -0,0 +1,22 @@ +Freescale i.MX TPM PWM controller + +Required properties: +- compatible : Should be "fsl,imx7ulp-pwm". +- reg: Physical base address and length of the controller's registers. +- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of the cells format. +- clocks : The clock provided by the SoC to drive the PWM. +- interrupts: The interrupt for the PWM controller. + +Note: The TPM counter and period counter are shared between multiple channels, so all channels +should use same period setting. + +Example: + +tpm4: pwm@40250000 { + compatible = "fsl,imx7ulp-pwm"; + reg = <0x40250000 0x1000>; + assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>; + assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>; + clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>; + #pwm-cells = <3>; +};