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[2620:137:e000::1:20]) by mx.google.com with ESMTP id 7-20020aa79207000000b005730a1bbac0si1069818pfo.354.2023.01.06.03.56.55; Fri, 06 Jan 2023 03:57:12 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=KWMm219c; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=mediatek.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232821AbjAFLyq (ORCPT + 99 others); Fri, 6 Jan 2023 06:54:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232149AbjAFLyn (ORCPT ); Fri, 6 Jan 2023 06:54:43 -0500 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0292045644; Fri, 6 Jan 2023 03:54:38 -0800 (PST) X-UUID: f598861a368e4a86b9d15a501c8fe39b-20230106 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=11f2m6HWavy1ycHJjCqVibR6VCcvs9IjPFDFLxUESd4=; b=KWMm219cnN+xu6dKaEdI49NOOeeOul9VVoHiZOPRxpRGRG7rR4n3GUXkdjQXeBA3MwDL13tH/iDdNOHbhobazSfVajyvn+gO9YVlXXs16nQSOm4VYhqSylzyQGo6eyXpmxZ0B8dMlgABrvEQjSuOH21Wvj2oYdHE/Tm+2sP57nU=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.17,REQID:161a2145-f1d9-4e37-90a6-9864c237938b,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:543e81c,CLOUDID:f8fe788b-8530-4eff-9f77-222cf6e2895b,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0 X-CID-BVR: 0,NGT X-UUID: f598861a368e4a86b9d15a501c8fe39b-20230106 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 179388553; Fri, 06 Jan 2023 19:54:33 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Fri, 6 Jan 2023 19:54:31 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Fri, 6 Jan 2023 19:54:31 +0800 From: Allen-KH Cheng To: Wim Van Sebroeck , Guenter Roeck , Krzysztof Kozlowski , Matthias Brugger , Rob Herring , CC: , , , , , Allen-KH Cheng Subject: [PATCH 1/2] dt-bindings: watchdog: mtk-wdt: Add reset-by-toprgu support Date: Fri, 6 Jan 2023 19:53:25 +0800 Message-ID: <20230106115326.15374-2-allen-kh.cheng@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230106115326.15374-1-allen-kh.cheng@mediatek.com> References: <20230106115326.15374-1-allen-kh.cheng@mediatek.com> MIME-Version: 1.0 X-MTK: N X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS, SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754274183019056667?= X-GMAIL-MSGID: =?utf-8?q?1754274183019056667?= In some applications, the mtk-wdt requires the toprgu (TOP Reset Generation Unit) to reset counter after wdt resets. Add optional mediatek,reset-by-toprgu property to enable it. Signed-off-by: Allen-KH Cheng --- .../devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml index b3605608410c..bf06dcd0c12c 100644 --- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml @@ -52,6 +52,10 @@ properties: description: Disable sending output reset signal type: boolean + mediatek,reset-by-toprgu: + description: Reset counter by toprgu + type: boolean + '#reset-cells': const: 1 From patchwork Fri Jan 6 11:53:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allen-KH Cheng X-Patchwork-Id: 40100 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp781579wrt; Fri, 6 Jan 2023 03:57:04 -0800 (PST) X-Google-Smtp-Source: AMrXdXsmMxMdlka8pFGDPz+o8XOSAsW28EQDoCUXJkiTMjc3HK+ecKeGtChGTsJLkiotib1P5uk+ X-Received: by 2002:a17:90a:5994:b0:226:ae12:444d with SMTP id l20-20020a17090a599400b00226ae12444dmr10037051pji.43.1673006223872; Fri, 06 Jan 2023 03:57:03 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673006223; cv=none; d=google.com; s=arc-20160816; b=RPtfjA4/hHcqloElM/KH+MOaS53f3K2E+n0vrZvI7ABx4RUO488dsuV2mEYtzXPUPj LeYEWiYNah5D62Icb8qTxwFErXmbpAm3LJe+B8NQ7DcHpvQbFYmQXWaeXPGDz7dNYqsG EOBMFbBJXoDEdyYh5kgrqCTHe9Buk4qeuoeZnKslWS5OFfW0dyPCnUoe+sGPxHrOK4RA QjaMdHQGmD8a2RuYMv1WokaF4eV/1txkI+rsj8lX1HL5NTuleuO9A5aOtIvRNeWOYZY1 KkgVAjDEodkaaT3kuqgVCexjW614q5zQLc7U4sX7DlNQH5+jdjcEly6F5E991Ga/tcVy BJdw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=2hXwYWe+jSegcz4Df7bZIw4pzdL+uc/kulrqwbGGLYw=; b=ANW1hWk6NtkBenQ8sXCdhm65u1zOQz++/lg6T2qVVSd+dvdddJ93ja2wdziYO7r/1S DOg3Jnit672OalerXXe5fB3E2UkUGCnwLw4/BmVarqY0RPu5/eBMKCoDtvsr/s47vnVw n7wPpcYwL4avDEFdKDLhed9soK3kiuWtV2EEWgbXDhW2lyVtWS9MgucnzWYcbXPsyn8u VldKULkpx6qFq537KXcL3eLJS0JAsLuQfkXJPtckNXBVyoLUqfzmqPXEroT+2BmTlvC4 gxJ/MotA80BndlyaWHFZ+6sZ2T4eOuQUHkzxV4lLGduIa0YymwoS2cjA3LU3xk6MtYKw Hu7A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=KMMeE1Rq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=mediatek.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id c17-20020a17090a8d1100b00219d31681b8si4661791pjo.42.2023.01.06.03.56.50; Fri, 06 Jan 2023 03:57:03 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=KMMeE1Rq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=mediatek.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233569AbjAFLyu (ORCPT + 99 others); Fri, 6 Jan 2023 06:54:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232042AbjAFLyo (ORCPT ); Fri, 6 Jan 2023 06:54:44 -0500 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8101F718B7; Fri, 6 Jan 2023 03:54:42 -0800 (PST) X-UUID: fd29bc19f56b49a299ef7cd42801477a-20230106 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=2hXwYWe+jSegcz4Df7bZIw4pzdL+uc/kulrqwbGGLYw=; b=KMMeE1RqzOSSCc5b+EMSblYd1OumkGv1i/BC0UBV++nX3fmaKBhcljMNjsOZURoSpdMZKy5s2NsrSpLaj9+DJ7japiTLwVeCkXH3zNNPgJDxBIm5DaFVmIh3ZJV5HZUOkYULHdQJ50blvgVxdATqj1bf1xWINzCj7aA2fPCPPpM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.17,REQID:f6a95baf-a0fc-45ca-b8d3-3c2688fee488,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:95 X-CID-INFO: VERSION:1.1.17,REQID:f6a95baf-a0fc-45ca-b8d3-3c2688fee488,IP:0,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTION :quarantine,TS:95 X-CID-META: VersionHash:543e81c,CLOUDID:22ff788b-8530-4eff-9f77-222cf6e2895b,B ulkID:2301061954379M8BZJD6,BulkQuantity:0,Recheck:0,SF:38|28|17|19|48,TC:n il,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OS I:0,OSA:0 X-CID-BVR: 0,NGT X-UUID: fd29bc19f56b49a299ef7cd42801477a-20230106 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1742996875; Fri, 06 Jan 2023 19:54:34 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Fri, 6 Jan 2023 19:54:33 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Fri, 6 Jan 2023 19:54:33 +0800 From: Allen-KH Cheng To: Wim Van Sebroeck , Guenter Roeck , Krzysztof Kozlowski , Matthias Brugger , Rob Herring , CC: , , , , , Allen-KH Cheng Subject: [PATCH 2/2] watchdog: mtk_wdt: Add reset_by_toprgu support Date: Fri, 6 Jan 2023 19:53:26 +0800 Message-ID: <20230106115326.15374-3-allen-kh.cheng@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230106115326.15374-1-allen-kh.cheng@mediatek.com> References: <20230106115326.15374-1-allen-kh.cheng@mediatek.com> MIME-Version: 1.0 X-MTK: N X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS, SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754274174099938939?= X-GMAIL-MSGID: =?utf-8?q?1754274174099938939?= In some cases, the MediaTek watchdog requires the toprgu to reset counter after wdt resets. Provide a reset_by_toprgu parameter for configuration. Signed-off-by: Allen-KH Cheng --- drivers/watchdog/mtk_wdt.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index 3e6212591e69..a9c437598e7e 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -50,6 +50,7 @@ #define WDT_MODE_IRQ_EN (1 << 3) #define WDT_MODE_AUTO_START (1 << 4) #define WDT_MODE_DUAL_EN (1 << 6) +#define WDT_MODE_CNT_SEL (1 << 8) #define WDT_MODE_KEY 0x22000000 #define WDT_SWRST 0x14 @@ -70,6 +71,7 @@ struct mtk_wdt_dev { spinlock_t lock; /* protects WDT_SWSYSRST reg */ struct reset_controller_dev rcdev; bool disable_wdt_extrst; + bool reset_by_toprgu; }; struct mtk_wdt_data { @@ -279,6 +281,8 @@ static int mtk_wdt_start(struct watchdog_device *wdt_dev) reg &= ~(WDT_MODE_IRQ_EN | WDT_MODE_DUAL_EN); if (mtk_wdt->disable_wdt_extrst) reg &= ~WDT_MODE_EXRST_EN; + if (mtk_wdt->reset_by_toprgu) + reg |= WDT_MODE_CNT_SEL; reg |= (WDT_MODE_EN | WDT_MODE_KEY); iowrite32(reg, wdt_base + WDT_MODE); @@ -408,6 +412,9 @@ static int mtk_wdt_probe(struct platform_device *pdev) mtk_wdt->disable_wdt_extrst = of_property_read_bool(dev->of_node, "mediatek,disable-extrst"); + mtk_wdt->reset_by_toprgu = + of_property_read_bool(dev->of_node, "mediatek,reset-by-toprgu"); + return 0; }