From patchwork Thu Aug 3 03:25:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bharat Bhushan X-Patchwork-Id: 710633 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09BF8C001DE for ; Thu, 3 Aug 2023 03:26:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233120AbjHCD0t (ORCPT ); Wed, 2 Aug 2023 23:26:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51010 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233618AbjHCD0M (ORCPT ); Wed, 2 Aug 2023 23:26:12 -0400 Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 45D75E48; Wed, 2 Aug 2023 20:26:06 -0700 (PDT) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 372KAiUh027910; Wed, 2 Aug 2023 20:25:32 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=pfpt0220; bh=pgeiXyQcl8l6nxlmc6V1x/0TUeKAwueu6QJhgyTSr4w=; b=Sz1lod6TY0TcRgKjjIi8e/OP7wWtdTDj5H7h1Fk5+hRBKM+UPCgFnBYDOCVH/YmcJbUZ hHnHzJu9iGQJEU/cDmRMBI6H6p2AvmAexx835novA+qVvpQjGLtoBG5IYX7IQjF8ZNQo AJdPyLffGB8Q6dkG309CrwqTl4EnpCfpbOguwffGSJlF7NGUwiy731qnW+PsQ4aV8pO+ 58PsOsFDHCN+xx+qXMlONJPPWFW3TDSfTBG3eGJ4Y4hcw/AMHmCWAbLK0+tv6wfuuqae oR/QEzxwdhKUDmWINdyrH9hGkKFIvAJ2JiKOwlZhKlqUYMvhGCbiKqU418dAzOOl6H4M KQ== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3s529kewcd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 02 Aug 2023 20:25:31 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 2 Aug 2023 20:25:29 -0700 Received: from bbhushan2.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Wed, 2 Aug 2023 20:25:26 -0700 From: Bharat Bhushan To: , , , , , , , CC: Bharat Bhushan Subject: [PATCH 1/2 v11] dt-bindings: watchdog: marvell GTI system watchdog driver Date: Thu, 3 Aug 2023 08:55:22 +0530 Message-ID: <20230803032523.6242-1-bbhushan2@marvell.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Proofpoint-GUID: sbCgDsPkGbawrDq1O728Wfr2DY03A_hI X-Proofpoint-ORIG-GUID: sbCgDsPkGbawrDq1O728Wfr2DY03A_hI X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-02_21,2023-08-01_01,2023-05-22_02 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Add binding documentation for the Marvell GTI system watchdog driver. Signed-off-by: Bharat Bhushan Reviewed-by: Krzysztof Kozlowski Reviewed-by: Guenter Roeck --- v11: - No change v10: - Added Reviewed by Krzysztof Kozlowski v9: - Rename binding file name from marvell,octeontx2-wdt.yaml to marvell,cn10624-wdt.yaml - "allOf: - $ref: watchdog.yaml#" moved after maintainers - clocks have maxItems rather than minItems - Added "clock-names" name defination - Added Fallback to compatible v8: - Compatible name as per soc name .../watchdog/marvell,cn10624-wdt.yaml | 83 +++++++++++++++++++ .../watchdog/marvell,cn10624-wdt.yaml | 83 +++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml b/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml new file mode 100644 index 000000000000..1b583f232e53 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/marvell,cn10624-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Marvell Global Timer (GTI) system watchdog + +maintainers: + - Bharat Bhushan + +allOf: + - $ref: watchdog.yaml# + +properties: + compatible: + oneOf: + - enum: + - marvell,cn9670-wdt + - marvell,cn10624-wdt + + - items: + - enum: + - marvell,cn9880-wdt + - marvell,cnf9535-wdt + - const: marvell,cn9670-wdt + + - items: + - enum: + - marvell,cn10308-wdt + - marvell,cnf10518-wdt + - const: marvell,cn10624-wdt + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: refclk + + marvell,wdt-timer-index: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 63 + description: + An SoC have many timers (up to 64), firmware can reserve one or more timer + for some other use case and configures one of the global timer as watchdog + timer. Firmware will update this field with the timer number configured + as watchdog timer. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include + soc { + #address-cells = <2>; + #size-cells = <2>; + + watchdog@802000040000 { + compatible = "marvell,cn9670-wdt"; + reg = <0x00008020 0x00040000 0x00000000 0x00020000>; + interrupts = ; + clocks = <&sclk>; + clock-names = "refclk"; + marvell,wdt-timer-index = <63>; + }; + }; + +...