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=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 C163DC004C9 for ; Sun, 5 May 2019 16:25:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9441020C01 for ; Sun, 5 May 2019 16:25:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UCBo8b5K" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728103AbfEEQZp (ORCPT ); Sun, 5 May 2019 12:25:45 -0400 Received: from mail-lj1-f194.google.com ([209.85.208.194]:40968 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727925AbfEEQZT (ORCPT ); Sun, 5 May 2019 12:25:19 -0400 Received: by mail-lj1-f194.google.com with SMTP id k8so9068578lja.8; Sun, 05 May 2019 09:25:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=EyUdd7HrC5y8waWKk3rsytQ58W6hY1rOklTf7qr80Ss=; b=UCBo8b5Kwr9Gc/6O1fuWHNgYRS+5wDY07hS63Ww/AXqaPoMlszvPymYiIBi+hpClIt arCfRKGCY8Wi0WCmtrDTr92u3R0OyfSL0OUcs6BS7uOOmifN9QmSRtsW6AfG+PGgV5yj 8cnq2JaHecyMTdWVlfgZoiEKiZLVvFD8pLx0WypYLAyWC1bIMbV6N7ClTwk5pws2jrqU v7VqFDDECw+fmwDzj5O2fjmYOyHi7DpjDfJDhmK2L05qm+XYFWTY/fl+4sbfh4BGxTEB T2jd3iDqojSHGQKMrVXx4Okft9vaFlCtJ9lqqFIP30lZLTzOHYMIzjG249mit6DiW1/6 4unA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=EyUdd7HrC5y8waWKk3rsytQ58W6hY1rOklTf7qr80Ss=; b=YFcbNvpFjM2jGtdpMn9KKDHkhmOS6SF5DCdpuc13J671bqgSvfEAxgjdSNZ0ld9cbR qr1K3G+CBDKlJ2YjGlwyyBA85UN9TFpjn6dYb1y/UkecpleFMg7mNIPIyba3wCz4IyBD 2e7BkAare9rL2RBTTOc73xbJWVbpRlQx0YuIMujfT/0hSFwUTTu4GIjHyt95cgO4JTEJ 2TmZJhcadxmgC83Za0aG8tAftnhKhlPV2Ph8Pp4xpe3IfnCCc2HAAsIiOS0yMBopYHEN TvVOZMg883uCPS4N25aiJ3Z5jDxANUIGsgSsnydMhpJquTSUjYffOOhoJG5YTNafeUA3 bj6Q== X-Gm-Message-State: APjAAAX4bDk3rW/bmHFwwB2cszAuo3VcLHm5eTmoqnsOjGETYtRra4Ad 5pCiSRltooaxt3CQQHLn2tc= X-Google-Smtp-Source: APXvYqx8xQxdH7ASIRU5U2MpdvZfWv/HHfTehI51Dpom1W6PVz9eizPm7oMhKbj0IrCNzgg50dXupA== X-Received: by 2002:a2e:9049:: with SMTP id n9mr471574ljg.168.1557073517451; Sun, 05 May 2019 09:25:17 -0700 (PDT) Received: from localhost.localdomain (ppp94-29-35-107.pppoe.spdop.ru. [94.29.35.107]) by smtp.gmail.com with ESMTPSA id g13sm1581649lfh.49.2019.05.05.09.25.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 05 May 2019 09:25:16 -0700 (PDT) From: Dmitry Osipenko To: Daniel Lezcano , Thomas Gleixner , Joseph Lo , Thierry Reding , Jonathan Hunter , Peter De Schrijver Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/7] clocksource/drivers/tegra: Reset hardware state on init Date: Sun, 5 May 2019 19:24:32 +0300 Message-Id: <20190505162436.23125-4-digetx@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190505162436.23125-1-digetx@gmail.com> References: <20190505162436.23125-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Reset timer's hardware state to ensure that initially it is in a predictable state. Signed-off-by: Dmitry Osipenko --- drivers/clocksource/timer-tegra20.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clocksource/timer-tegra20.c b/drivers/clocksource/timer-tegra20.c index 42a19a4019a9..b7d1e6221348 100644 --- a/drivers/clocksource/timer-tegra20.c +++ b/drivers/clocksource/timer-tegra20.c @@ -132,6 +132,9 @@ static int tegra_timer_setup(unsigned int cpu) { struct timer_of *to = per_cpu_ptr(&tegra_to, cpu); + writel(0, timer_of_base(to) + TIMER_PTV); + writel(TIMER_PCR_INTR_CLR, timer_of_base(to) + TIMER_PCR); + irq_force_affinity(to->clkevt.irq, cpumask_of(cpu)); enable_irq(to->clkevt.irq); -- 2.21.0