From patchwork Tue Nov 14 12:47:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sayyed, Mubin" X-Patchwork-Id: 744179 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A3FD3FB31 for ; Tue, 14 Nov 2023 12:49:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="ymOScf6k" Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2040.outbound.protection.outlook.com [40.107.236.40]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCEBF1A7; Tue, 14 Nov 2023 04:49:12 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=JwpwaT8s6iKScHChRQV903JQ6/GsHfEq7gccAD2KgSIwOA8o/v09ENEUDa1AgDtm1ucIw1H5FMITSKem1v/WaQgcsEXg5jpybG/vNYw00SeTWOV7brjs0cMPcvAc0uPcErjTDGXeo2bDpnVU/uMwOJJ8yflSRkNZoq3LneI01hMSqPsBDEKFnhyenEMH0SQwgOG9POLtM/MSFaGyw0z/2HeTIoy+NpL8TQ0kEAm51yp7IOKzkER8AABamRrAHpTyOgCy1r3lo8xvFbvVG2o8HjB7abEloVqwg35FdHdY1Gfwlpcpiqg86XgWz2AcWfrgjzM36c+AwFv7Ff9gj5pRfQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=jQpXlyDONzimOsaHr6N0meVwJEruFBCSVGiH0P1lF/Y=; b=iyreijANeNJ+q+bHefy5sAyZMrIPZMjFO8Kyz4XuAHKyTl5ChWtf8RnLczpZFCfAo1gC7XTwic6nreadbg6KkcbQmfGFu3jVaK5u9eTPEwZ3UZgik188v/in6valOodkac/i140TcsyNsrY+ov/uEMCFe+pbWrUyeuh14mediyDGB5X3P6fus6cA4Z1QD7C6/90W0QvbAwkZNe8ADAeqtEjHtVEJmyh8AUzc5IawIqya2im4Vzl5a/gJBCF3OTmcO0zhz8YzKR3Ofwr6wfvz2CcRNSg+mRB5Fd0ejr/PzAr8raYKQTtaA76cL1b7Mis3W2d2JBI3zRu2uTac2LiOlg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=linaro.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jQpXlyDONzimOsaHr6N0meVwJEruFBCSVGiH0P1lF/Y=; b=ymOScf6kcNYQe+6euvlIVEBqRo8a4vg/qf+6NDBdgkVdmUg7QGdIrtJnVeagoWOCGRZM5uNYUc0W7tI8O2g6+WSsrLPuI9VBQuXEEUP7k/c5J5uH/pq6Z9DP7GM5ctfNHVJEXxdVzk58p83+o3LYqHhDV65399G3kDMID1gMfVM= Received: from MN2PR12CA0020.namprd12.prod.outlook.com (2603:10b6:208:a8::33) by DS0PR12MB6487.namprd12.prod.outlook.com (2603:10b6:8:c4::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6977.31; Tue, 14 Nov 2023 12:49:10 +0000 Received: from BL6PEPF0001AB4A.namprd04.prod.outlook.com (2603:10b6:208:a8:cafe::26) by MN2PR12CA0020.outlook.office365.com (2603:10b6:208:a8::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6977.31 via Frontend Transport; Tue, 14 Nov 2023 12:49:10 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C Received: from SATLEXMB03.amd.com (165.204.84.17) by BL6PEPF0001AB4A.mail.protection.outlook.com (10.167.242.68) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7002.14 via Frontend Transport; Tue, 14 Nov 2023 12:48:43 +0000 Received: from SATLEXMB08.amd.com (10.181.40.132) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.32; Tue, 14 Nov 2023 06:48:38 -0600 Received: from SATLEXMB03.amd.com (10.181.40.144) by SATLEXMB08.amd.com (10.181.40.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.32; Tue, 14 Nov 2023 04:48:37 -0800 Received: from xhdmubinusm40.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server id 15.1.2507.32 via Frontend Transport; Tue, 14 Nov 2023 06:48:34 -0600 From: Mubin Sayyed To: , , , , , , , CC: , , , , , , Mubin Sayyed Subject: [LINUX PATCH v2 2/3] dt-bindings: timer: Add bindings for TTC PWM Date: Tue, 14 Nov 2023 18:17:47 +0530 Message-ID: <20231114124748.581850-3-mubin.sayyed@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231114124748.581850-1-mubin.sayyed@amd.com> References: <20231114124748.581850-1-mubin.sayyed@amd.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB4A:EE_|DS0PR12MB6487:EE_ X-MS-Office365-Filtering-Correlation-Id: f3b602e4-0dd0-4e20-c528-08dbe51018c5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB03.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(4636009)(136003)(346002)(396003)(39860400002)(376002)(230922051799003)(451199024)(186009)(82310400011)(64100799003)(1800799009)(36840700001)(46966006)(40470700004)(40480700001)(40460700003)(70586007)(70206006)(110136005)(6636002)(316002)(54906003)(81166007)(82740400003)(356005)(36756003)(86362001)(83380400001)(336012)(426003)(26005)(6666004)(2616005)(36860700001)(478600001)(2906002)(5660300002)(47076005)(44832011)(41300700001)(4326008)(8676002)(7416002)(1076003)(8936002)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2023 12:48:43.9345 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f3b602e4-0dd0-4e20-c528-08dbe51018c5 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB4A.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6487 Cadence TTC can act as PWM device, it is supported through separate PWM framework based driver. Decision to configure specific TTC device as PWM or clocksource/clockevent would be done based on presence of "#pwm-cells" property. Also, interrupt property is not required for TTC PWM driver. Update bindings to support TTC PWM configuration. Signed-off-by: Mubin Sayyed --- Changes for v2: Update subject Modify #pwm-cells to constant 3 Update example to use generic name --- .../devicetree/bindings/timer/cdns,ttc.yaml | 22 ++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/timer/cdns,ttc.yaml b/Documentation/devicetree/bindings/timer/cdns,ttc.yaml index dbba780c9b02..da342464d32e 100644 --- a/Documentation/devicetree/bindings/timer/cdns,ttc.yaml +++ b/Documentation/devicetree/bindings/timer/cdns,ttc.yaml @@ -32,12 +32,23 @@ properties: description: | Bit width of the timer, necessary if not 16. + "#pwm-cells": + const: 3 + required: - compatible - reg - - interrupts - clocks +allOf: + - if: + not: + required: + - "#pwm-cells" + then: + required: + - interrupts + additionalProperties: false examples: @@ -50,3 +61,12 @@ examples: clocks = <&cpu_clk 3>; timer-width = <32>; }; + + - | + pwm: pwm@f8002000 { + compatible = "cdns,ttc"; + reg = <0xf8002000 0x1000>; + clocks = <&cpu_clk 3>; + timer-width = <32>; + #pwm-cells = <3>; + };