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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 81BA7C10F29 for ; Fri, 20 Mar 2020 17:03:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B99120724 for ; Fri, 20 Mar 2020 17:03:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727665AbgCTRDK (ORCPT ); Fri, 20 Mar 2020 13:03:10 -0400 Received: from mout.kundenserver.de ([212.227.126.134]:52025 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727548AbgCTRDH (ORCPT ); Fri, 20 Mar 2020 13:03:07 -0400 Received: from mail-lf1-f44.google.com ([209.85.167.44]) by mrelayeu.kundenserver.de (mreue009 [212.227.15.129]) with ESMTPSA (Nemesis) id 1MAfQe-1j8iHa0k1o-00B0qA; Fri, 20 Mar 2020 18:03:06 +0100 Received: by mail-lf1-f44.google.com with SMTP id i1so4418254lfo.1; Fri, 20 Mar 2020 10:03:06 -0700 (PDT) X-Gm-Message-State: ANhLgQ39zmuHYftErsjSRWWEYfv4e3Y18Djyduf8JnpdTbD6ABxfD164 rIEGucIGWlDb7Ywp3SItWZzsVwLRDzubBGNIx5I= X-Google-Smtp-Source: ADFU+vtGM1BAWj/ypTGImtaXGVhgdztgWM/eg3xxnSs7xp+2vbgGEFrzZEo8G63MzFh8mtaYi7v6nQ6u9eton4GUQoQ= X-Received: by 2002:a05:6512:31d6:: with SMTP id j22mr5942299lfe.173.1584723785648; Fri, 20 Mar 2020 10:03:05 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Arnd Bergmann Date: Fri, 20 Mar 2020 18:02:49 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v11 09/12] pwm: sun4i: Use 64-bit division function To: Guru Das Srinagesh Cc: Linux PWM List , Thierry Reding , =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= , Subbaraman Narayanamurthy , "linux-kernel@vger.kernel.org" , Maxime Ripard , Chen-Yu Tsai , Philipp Zabel Content-Type: text/plain; charset="UTF-8" X-Provags-ID: V03:K1:Nb6zGbGXVPUdXGZzWjYWmcJR/59MVZDu4HG9LMi7gpxV7FvhykF EIig5FCkaFNzfVBBDGlmta8ONjDB5N3X6eHZsXK1YPBzM16+tkapau27BqtXyxhC5bZgx73 OxZntrLDjCzYHs0ps6NgwRWRyXQW7sTTkNEwhyMLAdC8CE7O0cEZxqvRadZnXOC2c1aJC10 PadC2EOV2YdcPPR8Hz9Yg== X-UI-Out-Filterresults: notjunk:1;V03:K0:E0uWrkMpb54=:nc5WrO/vT4gO4OFSvUZK36 DP9MCrcPUvnQz+ckdsv6FRhFDCB5TnRwM3IBQsKeFQlWXaTQp6JbyFzzoZpPNiUoz4j/jp7xt PbBNxu5r8QbVzJFy+GERCtM5QRUpbcjsJyx9DDwfalv1CJAweapUAAzi+CkJLrxS9d1yV0eHU LmVTBHTa9SRjDuTZAyE/GyyTjI3QlCkgI2ncrUxtpmFw2wdMMZ0wtoGxTpsCRcuvvnpdVPOzV jIrWLt5XlAETXbasomunwH7O3bVqdfOs76DcBLZMVkhpS7HIf3dsUI2d9tTxhwUNFpYo04ODw vUuEepMSEsmw8FAHpGK9BYrvIRphRzX7+Ek4fK0UEONY2m5cED19w0jeBa/5vydW8U+kEcXl5 56WnNAe/kHiiYsil8qubIfnOyrCYI9++mdJZ3dwNiVK+spafWaRR7xutGHIaf2LG9JonwBgHw yvDplf7Eu8QAfqJ+McEk11hIPgdcn+E2lfwkU9JdDJQ5sGYoJpD9vBWeaCbRDpbiygmSvyCsg P7mZqBIolIt5DF6jKZEgUA4XZuC6vZrK2rVtQ1WFWdjqkYHFOM2M9O90nRHFz2pbODSrJE9R/ JKAikMbQYUnHamr+kTaly/6vYOcC/t2zRurmru+pIL8WvNVnRdKjN/sXheVmPP+09fSBMgCRI vuW4I2D5sH5uaiYfViKAC4A8ZXrihtGhyq5F4hy8MUC5tkV5fUqxTe0597E8LEyGr2OnifJdI PHKeIt2zBRJWLuNFU4Xthb/t4OLr1uD9kjnVu4Fn2f4rlgIV6azKa7bpiVIJrYU5Q7f6e9AZV fAxEC5VYXxEbGBrL1y6gaOo1+VLiAdeU5D0ItQLMLMWjNYSs+0= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 20, 2020 at 2:42 AM Guru Das Srinagesh wrote: > sun4i_pwm->next_period[pwm->hwpwm] = jiffies + > - usecs_to_jiffies(cstate.period / 1000 + 1); > + usecs_to_jiffies(div_u64(cstate.period, 1000) + 1); > sun4i_pwm->needs_delay[pwm->hwpwm] = true; > This one looks like it should use nsecs_to_jiffies(cstate.period) to avoid having two 64-bit divisions. Arnd