From patchwork Fri Feb 4 16:17:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Jacques Hiblot X-Patchwork-Id: 540044 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 DE9AAC433F5 for ; Fri, 4 Feb 2022 16:18:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376430AbiBDQST (ORCPT ); Fri, 4 Feb 2022 11:18:19 -0500 Received: from smtpout1.mo3004.mail-out.ovh.net ([79.137.123.219]:48897 "EHLO smtpout1.mo3004.mail-out.ovh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234695AbiBDQST (ORCPT ); Fri, 4 Feb 2022 11:18:19 -0500 Received: from pro2.mail.ovh.net (unknown [10.109.143.120]) by mo3004.mail-out.ovh.net (Postfix) with ESMTPS id D1098241C84; Fri, 4 Feb 2022 16:18:14 +0000 (UTC) Received: from localhost.localdomain (88.125.132.78) by DAG1EX2.emp2.local (172.16.2.2) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.18; Fri, 4 Feb 2022 17:18:13 +0100 From: Jean-Jacques Hiblot To: , Wim Van Sebroeck , Guenter Roeck , Magnus Damm , Rob Herring , Wolfram Sang CC: Jean-Jacques Hiblot , , , , , Subject: [PATCH 0/6] ARM: r9a06g032: add support for the watchdogs Date: Fri, 4 Feb 2022 17:17:58 +0100 Message-ID: <20220204161806.3126321-1-jjhiblot@traphandler.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [88.125.132.78] X-ClientProxiedBy: DAG2EX1.emp2.local (172.16.2.11) To DAG1EX2.emp2.local (172.16.2.2) X-Ovh-Tracer-Id: 5892678638484994517 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvvddrgeelgdekjecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffufffkofgggfgtihesthekredtredttdenucfhrhhomheplfgvrghnqdflrggtqhhuvghsucfjihgslhhothcuoehjjhhhihgslhhothesthhrrghphhgrnhgulhgvrhdrtghomheqnecuggftrfgrthhtvghrnhepjedugfffleelheehveevuedtjeffgfejkedukeekudfguedtfeefuefhueevheeinecuffhomhgrihhnpehgihhthhhusgdrtghomhenucfkpheptddrtddrtddrtddpkeekrdduvdehrddufedvrdejkeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphhouhhtpdhhvghlohepphhrohdvrdhmrghilhdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomhepjhhjhhhisghlohhtsehtrhgrphhhrghnughlvghrrdgtohhmpdhnsggprhgtphhtthhopedupdhrtghpthhtoheplhhinhhugidqtghlkhesvhhgvghrrdhkvghrnhgvlhdrohhrgh Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Hi all, This series adds support for the watchdog timers of the RZ/N1. The watchdog driver (rzn1-wdt.c) is derived from the driver available at https://github.com/renesas-rz/rzn1_linux.git with a few modifications (devm watchdog API usage and WDIOF_MAGICCLOSE option) In order to be able to reset the board when a watchdog timer expires, the RSTEN register must be configured. This is done in the clock driver of the r9a06g032. The rationnal is that this driver is the only one that handles the sysctrl for this platform and there are a couple of other clock drivers that also handle resets/reboot. I intend to later post another patch to add software-triggered reboot capability that will leverage this change. Jean-Jacques Hiblot (5): clk: renesas: r9a06g032: Enable the watchdog reset sources dt-bindings: clock: r9a06g032: Add the definition of the watchdog clock dt-bindings: watchdog: renesas,wdt: Add support for RZ/N1 ARM: dts: r9a06g032: Add the watchdog nodes ARM: dts: r9a06g032-rzn1d400-db: Enable watchdog0 with a 10s timeout Phil Edworthy (1): watchdog: Add Renesas RZ/N1 Watchdog driver .../bindings/watchdog/renesas,wdt.yaml | 4 + arch/arm/boot/dts/r9a06g032-rzn1d400-db.dts | 5 + arch/arm/boot/dts/r9a06g032.dtsi | 16 ++ drivers/clk/renesas/r9a06g032-clocks.c | 33 +++ drivers/watchdog/Kconfig | 8 + drivers/watchdog/Makefile | 1 + drivers/watchdog/rzn1_wdt.c | 197 ++++++++++++++++++ include/dt-bindings/clock/r9a06g032-sysctrl.h | 1 + 8 files changed, 265 insertions(+) create mode 100644 drivers/watchdog/rzn1_wdt.c