From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1E39CC433F5 for ; Mon, 17 Jan 2022 16:02:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Subject:To:From :Date:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=mpei2yjh0Zvgrj1+qlzUUDftWhGYtw2lEqAzi8+DN94=; b=iYEr4dc8uoYPbp ASSyUgZ42c3pjCXdn6U836A/dXTE5EWQPIdQGPn0Z7Gk17scCwrckvTbXs85qMd9KjQfqjoXehX5I Qf78iIH+Qopv+2FCg2LueIUCOEDJfCiI/HARO3LF9o/iPz5I4YQAfgZ2UOAalkd4DOH8kVrMXaHOw KHdZGsPf/oc1mUkcbNfUaD30XB4I7JbboMNof5+wl1OElD5okTsxpirknsAkr7tes6Z+R9nTn1J8H qNWsntixHiDRiGFQBofiZzhccsJg4WHLJGa8muF2BGZmM3fU9WgMH1EyICI8jIEHHi3iOW+nhWhFn sT41KLykFWLDOu9OCh5A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n9URk-00FWOw-6B; Mon, 17 Jan 2022 16:01:28 +0000 Received: from eu-shark1.inbox.eu ([195.216.236.81]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n9URf-00FWOd-Ce for linux-arm-kernel@lists.infradead.org; Mon, 17 Jan 2022 16:01:25 +0000 Received: from eu-shark1.inbox.eu (localhost [127.0.0.1]) by eu-shark1-out.inbox.eu (Postfix) with ESMTP id A7AE66C007B8; Mon, 17 Jan 2022 18:01:18 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mail.ee; s=20150108; t=1642435278; bh=8eZy1CPKhQvMCMzsnEkM0QJ5WK+Ngz6mR4luFdgMGvc=; h=Date:From:To:Subject:Message-ID:Content-Type:X-ESPOL:from:date; b=jgOX3FcGFDjImxPXV4lSZmrIfpN+RYm1YiACSBUeOMlnuE+UVrisrt1qIe5hSobMB pRW7zoW0tBUSJWHIqydyNgGDLRFh6ToMfJwrueG4nRbBOJcOYlZ0dZ0l3h7tzI/5DP ifcZvpNKyCjvSBaiGp9cPvQomxhN83JtXteCIcvA= Received: from localhost (localhost [127.0.0.1]) by eu-shark1-in.inbox.eu (Postfix) with ESMTP id 984126C007B7; Mon, 17 Jan 2022 18:01:18 +0200 (EET) Received: from eu-shark1.inbox.eu ([127.0.0.1]) by localhost (eu-shark1.inbox.eu [127.0.0.1]) (spamfilter, port 35) with ESMTP id w-pItSQyIShD; Mon, 17 Jan 2022 18:01:18 +0200 (EET) Received: from mail.inbox.eu (eu-pop1 [127.0.0.1]) by eu-shark1-in.inbox.eu (Postfix) with ESMTP id 564D06C007A9; Mon, 17 Jan 2022 18:01:18 +0200 (EET) Date: Mon, 17 Jan 2022 19:01:12 +0300 From: Boris Lysov To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Missing ARM TWD Watchdog driver? Message-ID: <20220117190112.2b2c2f53@pc> MIME-Version: 1.0 X-Virus-Scanned: OK X-ESPOL: 6N1mkJY3ejOnjUCgRn3ABwcxsStMXfGWiOrAsAEq4na6bm6YHDwAURW+m25+SXi8vSM= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220117_080123_800298_4730E9E6 X-CRM114-Status: UNSURE ( 5.69 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello everyone, I stumbled upon the ARM TWD Watchdog driver which seems to be missing (or I'm just blind). As per commit a33f5c380c4bd3fa5278d690421b72052456d9fe ("Merge tag 'xfs-5.17-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux"), multiple device trees declare usage of arm-twd: arch/arm/boot/dts/arm-realview-eb-mp.dtsi arch/arm/boot/dts/arm-realview-pb11mp.dts arch/arm/boot/dts/arm-realview-pbx-a9.dts arch/arm/boot/dts/bcm5301x.dtsi arch/arm/boot/dts/bcm63138.dtsi arch/arm/boot/dts/bcm-hr2.dtsi arch/arm/boot/dts/bcm-nsp.dtsi arch/arm/boot/dts/berlin2cd.dtsi arch/arm/boot/dts/highbank.dts arch/arm/boot/dts/mmp3.dtsi arch/arm/boot/dts/owl-s500.dtsi arch/arm/boot/dts/spear13xx.dtsi arch/arm/boot/dts/ste-dbx5x0.dtsi arch/arm/boot/dts/vexpress-v2p-ca5s.dts arch/arm/boot/dts/vexpress-v2p-ca9.dts and it is documented in Documentation/devicetree/bindings/watchdog/arm,twd-wdt.yaml However I could not find the driver itself. I tried running case-insensitive grep and ripgrep to no avail. Does this driver actually exist? Is it gone? I'm not well experienced with LKML yet and I apologize for if I asked the question on the inappropriate mailing list. As per 3.3 of [1], I'm kindly asking to CC me with answers. Thanks! [1] The linux-kernel mailing list FAQ http://vger.kernel.org/lkml/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel