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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6C2E5C433DB for ; Mon, 22 Mar 2021 10:19:16 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EF41D61582 for ; Mon, 22 Mar 2021 10:19:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EF41D61582 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=on1KAZMDeEk+H+z/7BuD/+jLO/MUv9SNxNblRVj4DX8=; b=IOPGf+LQqmQSx+67oYFhacF95 x1SzMfw/xF3uRB693S7sbhQbscspq91mDXd4vrfvsgYp44BnD8j7nDUhfOlEUNpmHGDnlHuoNGMZP OH2gbvp3Nyo5Avxs155SqZEPzQB+fkfdoLw77KiBrXq1Qr99ykmgaZE0CXuxXPFPTip9x+XXvs1qD Gh27Zj1YfQhvjFj/mGbmlLnk9gimgVTIlK4k0C0B+md/Teplen6LXAmKIYaHbHhoZlpXkG7O+5OVM ggN+aTCf8WWbZtTRAVpmbn6sv8gMVISMZQLgOXNxWvJQeBaxPV+XRX7mmEpM0rmb7sytoMCtSUJ0+ Vp7Z6OSnw==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOHcr-00BK0s-Uy; Mon, 22 Mar 2021 10:17:34 +0000 Received: from muru.com ([72.249.23.125]) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOHck-00BJzE-Rd for linux-arm-kernel@lists.infradead.org; Mon, 22 Mar 2021 10:17:29 +0000 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id 4DC5C804C; Mon, 22 Mar 2021 10:18:17 +0000 (UTC) Date: Mon, 22 Mar 2021 12:17:19 +0200 From: Tony Lindgren To: Daniel Lezcano Cc: Thomas Gleixner , Keerthy , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tero Kristo Subject: Re: [PATCH 2/2] clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940 Message-ID: References: <20210304073737.15810-1-tony@atomide.com> <20210304073737.15810-3-tony@atomide.com> <1edba5bd-5408-c545-85ea-689b4171cb5b@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1edba5bd-5408-c545-85ea-689b4171cb5b@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210322_101727_202913_67F99C4D X-CRM114-Status: GOOD ( 12.25 ) 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 Hi, * Daniel Lezcano [210322 10:16]: > On 04/03/2021 08:37, Tony Lindgren wrote: > > There is a timer wrap issue on dra7 for the ARM architected timer. > > In a typical clock configuration the timer fails to wrap after 388 days. > > > > To work around the issue, we need to use timer-ti-dm percpu timers instead. > > > > Let's configure dmtimer3 and 4 as percpu timers by default, and warn about > > the issue if the dtb is not configured properly. > > > > Let's do this as a single patch so it can be backported to v5.8 and later > > kernels easily. > > Cc: # v5.8+ > > ?? Yes please, that would be great. Thanks, Tony _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel