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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 1835DC433ED for ; Wed, 28 Apr 2021 00:20:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8691611BE for ; Wed, 28 Apr 2021 00:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237984AbhD1AUu (ORCPT ); Tue, 27 Apr 2021 20:20:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230368AbhD1AUt (ORCPT ); Tue, 27 Apr 2021 20:20:49 -0400 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38B59C061574 for ; Tue, 27 Apr 2021 17:20:05 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id i24so12484727edy.8 for ; Tue, 27 Apr 2021 17:20:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=prusa3d-cz.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=coh3uK8A3rVZT8BT4tCqVuJ+myblPEITgGPRbovsrpo=; b=S4YKT1KkCm3jQg2KVZ/ehWg+UKPP8SljKPVr7IvlzAl4i7ZJH8UEBMkm1M866bGHNN Mt2MwDJbZTwVBZiBwbmV9mgVAP0X4thqHOhxU7wzgVphQI2kxHQyQpXw7gPdR1nQi4lc e+cNPJUarku2gyp1VxSJKo3aLkHpoIPW2v8dkc4c1dF/fk8zoYPpcM4oT/gtJ+CPP8qe BNJE16xNguIPSSs6Wtn9JLtn1QCAsoTi0/pa2FsYNA96WVqEa51nZjW+Ywn+X49ldQ9D +N7bjoMKGwl4rASICkYWpSj7dgm/lsVEgO7HcXJelazmFu+x2PGV2cn+9JW9IEXoXYQx MMAw== 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:mime-version :content-transfer-encoding; bh=coh3uK8A3rVZT8BT4tCqVuJ+myblPEITgGPRbovsrpo=; b=sIHPkZ9ek/c26IlnTMD3OFdlkIHQPMOHZ8d01MU9DZbK0UcW8WA4N8JkvydVgvYRwt H/O7xg8+RJIu2ezvHjipWgRyPG6fBrAMIn0ltdzjoHGFWDHpCKrVtVxdz/XOKjfQdDOh CZ2SKeTfWauvxVSLmQLBDVOxiASiW6lMmdX2paxvmxAiq7El8vOdgxPpsW8LhCihYHl0 C77vShq9ZDcefEcFa2QjWqKo76aE5t13ExqOPu7rMaG1BIIjR6MoBzlt+7/e/CjtY+ZW 5kJstxpAKDOmA7HF7BM5y4vBcyOec5syMnSotOO1SYQJw8ohyvQdx9WuemnIKua7uaAA vZbQ== X-Gm-Message-State: AOAM531CRMeFafnsWQ1GAcaqmn7mcLpjjR4PKfDCfvk0b69hA8K6Lz2Z a7+kWrYNjS8b7BiJzq5mhEeUsw== X-Google-Smtp-Source: ABdhPJz0ekb3OQBIyH6iYc/iKBgeHfQ6WBKq95E5jHRFfKk4F1digJy8gYassw6JCOF9vpb6PuKIag== X-Received: by 2002:a05:6402:280c:: with SMTP id h12mr7359213ede.332.1619569204001; Tue, 27 Apr 2021 17:20:04 -0700 (PDT) Received: from zen.local (ip-213-220-236-33.net.upcbroadband.cz. [213.220.236.33]) by smtp.gmail.com with ESMTPSA id rs8sm802460ejb.17.2021.04.27.17.20.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Apr 2021 17:20:03 -0700 (PDT) From: Roman Beranek X-Google-Original-From: Roman Beranek To: Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Lee Jones , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-sunxi@googlegroups.com, Roman Beranek Subject: [PATCH] pwm: sun4i: Round delay time up to a nearest jiffy Date: Wed, 28 Apr 2021 02:19:46 +0200 Message-Id: <20210428001946.1059426-1-roman.beranek@prusa3d.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org More often than not, a PWM period may span nowhere near as far as 1 jiffy, yet it still must be waited upon before the channel is disabled. Signed-off-by: Roman Beranek --- drivers/pwm/pwm-sun4i.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index ce5c4fc8d..f4b991048 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -285,7 +285,7 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, val = (duty & PWM_DTY_MASK) | PWM_PRD(period); sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm)); sun4i_pwm->next_period[pwm->hwpwm] = jiffies + - nsecs_to_jiffies(cstate.period + 1000); + nsecs_to_jiffies(cstate.period) + 1; if (state->polarity != PWM_POLARITY_NORMAL) ctrl &= ~BIT_CH(PWM_ACT_STATE, pwm->hwpwm); -- 2.31.1