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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 301C4C43217 for ; Fri, 22 Apr 2022 16:43:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1449793AbiDVQqq (ORCPT ); Fri, 22 Apr 2022 12:46:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1449794AbiDVQqp (ORCPT ); Fri, 22 Apr 2022 12:46:45 -0400 Received: from mail-lf1-x12e.google.com (mail-lf1-x12e.google.com [IPv6:2a00:1450:4864:20::12e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4F535F24B for ; Fri, 22 Apr 2022 09:43:40 -0700 (PDT) Received: by mail-lf1-x12e.google.com with SMTP id t25so15253240lfg.7 for ; Fri, 22 Apr 2022 09:43:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=hSLDhPvZ/qq56qC7ghMdZ74eW1bE+fY1+xiSFROWRIA=; b=p3sboTo1t7/kbjmdbuUJL5jhd910l0H0RZEdw5MqFoHg6mLd98irRDg9i2BkhVyVBg 9q0K/B1CEpEERgEwu4uZ/vnd0BUAzsjw6QtvWdLRxn9DQ3/M9gXSvTe5UE+O6f6rl0v1 fFDkv5R3hNRlWEAxbf9nIXnmL6Ju8czyqIzwQLpM5vbjWMIs4rkHb5NbFTwZozgE+YuQ 6X3uQsnu+hXbbBos4wBw2RiX+wmkDZTsVuLBoO9wCQ0U68zce1bmfAG+cYA7LQDimArh ToZhD6HD+gaR/JdTrpGVaAR9l6jd7SndyYXWHu40ijIeRt7m4w+gokfnb/Xw20zCltK/ LiMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=hSLDhPvZ/qq56qC7ghMdZ74eW1bE+fY1+xiSFROWRIA=; b=T+6StbVSD3tDNk+U5zpUt9i6gfyuStRkuIMPyuSuZCGokAaP/Uujv+EMMxxRfe5nXj S1L1Rl7nBWP1VKi3y4kAj9EFSx35v+OLPRI9U1HOrmejVLbmEAATDfs1tJ32wCq1ThgZ SzaEL7k2hA+9k4tUicxvEsTpUxSeavxJWno4zYHuaAwDD9JLamM46fIGlOR5yHlW7X9I Vde40dmVQGOEnactXwQaWaWuKUVjDRo4SgQzsJc1xh/hHJJOrGpeWFDMM8ljZNjGazVm S509GeQ7GYJn1iQR7ZEcHvVhzkkXfMsz+oeXETS1t7FbQGqR0jd77rt1iIuoPmtdvDs3 kWgw== X-Gm-Message-State: AOAM533eFjufBT/7zL6XLrZJd4jYjc2AQu8717RBQ0huiUlhuxpaLO4f LURwNpR60oANz72wBEFrepXEdrDIJbQ= X-Google-Smtp-Source: ABdhPJx5JVq09zzaY2EB6TzgTXEp6kOlU1t1Ku7CcDGMpZfDgVaboniKAhk5wUaKdrs/bsGr9zy2FA== X-Received: by 2002:a05:6512:78:b0:46b:c2d0:8134 with SMTP id i24-20020a056512007800b0046bc2d08134mr3813207lfo.686.1650645819174; Fri, 22 Apr 2022 09:43:39 -0700 (PDT) Received: from orome ([62.96.65.119]) by smtp.gmail.com with ESMTPSA id m20-20020a194354000000b0046f8c68f965sm279809lfj.166.2022.04.22.09.43.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Apr 2022 09:43:38 -0700 (PDT) Date: Fri, 22 Apr 2022 18:43:35 +0200 From: Thierry Reding To: Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= Cc: Lee Jones , Milo Kim , linux-pwm@vger.kernel.org, kernel@pengutronix.de Subject: Re: [PATCH 1/2] pwm: lp3943: fix duty calculation in case period was clamped Message-ID: References: <20220408152239.164462-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="y5USQPmL25wGDsD+" Content-Disposition: inline In-Reply-To: <20220408152239.164462-1-u.kleine-koenig@pengutronix.de> User-Agent: Mutt/2.2.1 (c8109e14) (2022-02-19) Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org --y5USQPmL25wGDsD+ Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 08, 2022 at 05:22:38PM +0200, Uwe Kleine-K=C3=B6nig wrote: > The hardware only supports periods <=3D 1.6 ms and if a bigger period is > requested it is clamped to 1.6 ms. In this case duty_cycle might be bigger > than 1.6 ms and then the duty cycle register is written with a value > bigger than LP3943_MAX_DUTY. So clamp duty_cycle accordingly. >=20 > Fixes: af66b3c0934e ("pwm: Add LP3943 PWM driver") > Signed-off-by: Uwe Kleine-K=C3=B6nig > --- > drivers/pwm/pwm-lp3943.c | 1 + > 1 file changed, 1 insertion(+) Both patches applied, thanks. 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