From patchwork Mon Jan 16 10:53:04 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: 645539 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 906EBC677F1 for ; Mon, 16 Jan 2023 10:53:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230402AbjAPKxZ (ORCPT ); Mon, 16 Jan 2023 05:53:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229863AbjAPKxW (ORCPT ); Mon, 16 Jan 2023 05:53:22 -0500 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0FAAB6A46; Mon, 16 Jan 2023 02:53:15 -0800 (PST) X-UUID: f6cbfb40958b11ed945fc101203acc17-20230116 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=WVRQn0/z4/Txw4tds1T9p+ZOw4h5tZ0f/iFMTnbJITI=; b=Pj6hEWsfv9oRV4U2rOZYD6l4jaT5dTzEwB26ZnKI+aGzKPbg3ROGkhgk5NgRyCr2TgNlDsOfADYL/he+suWi+RjuZY2QHJ007jjMKjRL9NE9S0PC8Sa5zPF1I86VUFe3VuvyQzIj3KenYyiqCmqVP4/RU+4p/wlmYKPgKSeJW0w=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.18, REQID:4a0b832a-bab0-49c3-8c4c-e05570b52d2d, 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:3ca2d6b, CLOUDID:bb93638c-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: f6cbfb40958b11ed945fc101203acc17-20230116 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 814725318; Mon, 16 Jan 2023 18:53:09 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Mon, 16 Jan 2023 18:53:07 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Mon, 16 Jan 2023 18:53:07 +0800 From: Allen-KH Cheng To: Wim Van Sebroeck , Guenter Roeck , Krzysztof Kozlowski , Matthias Brugger , Rob Herring , CC: , , , , , Allen-KH Cheng Subject: [PATCH v2 1/2] dt-bindings: watchdog: mtk-wdt: Add reset-by-toprgu support Date: Mon, 16 Jan 2023 18:53:04 +0800 Message-ID: <20230116105305.31818-2-allen-kh.cheng@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230116105305.31818-1-allen-kh.cheng@mediatek.com> References: <20230116105305.31818-1-allen-kh.cheng@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org In some applications, the mtk-wdt requires the toprgu (TOP Reset Generation Unit) to reset timer after system resets. Add optional mediatek,reset-by-toprgu property to enable it. Signed-off-by: Allen-KH Cheng --- .../devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml index b3605608410c..b4de6b134ce1 100644 --- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml @@ -52,6 +52,12 @@ properties: description: Disable sending output reset signal type: boolean + mediatek,reset-by-toprgu: + description: The top reset generate unit (toprgu) generates reset signals + and distributes them to each system. If present, means the watchdog + timer will reset by toprgu once system resets. + type: boolean + '#reset-cells': const: 1