Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp9625468ybl; Thu, 26 Dec 2019 02:31:02 -0800 (PST) X-Google-Smtp-Source: APXvYqzXmEJ1NjRRMm8jxFADoM6YebfO5/Oe9u6I3B9f6OYvTmMlDy1NPc2/ogArfHzho8oWF14G X-Received: by 2002:a9d:650f:: with SMTP id i15mr34070502otl.97.1577356262261; Thu, 26 Dec 2019 02:31:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1577356262; cv=none; d=google.com; s=arc-20160816; b=YjhXqrsuUwAoZTb5fckQjfxsGZ0ABl22S3XL+HQNNfle1x97+roYa89Vlq96gDozSo s6J2yS9U/6Exq45eoT/SdTHlY5Ksn51yH7U/y29Pl68Lw4DPnQypE/t7EWzuP9fZZikw aovTcLoAeLqOhoT2sdWw0yeYAydRK8dbvvO3o0MA+WE+T9mK2jDsyL+TakuZu5LJRpb5 TVxGDOU+IQNZeVeje12rXrfbbvmru2ikYUNm7UPwnFLUvoPb9niTSzOcr/guMFX6yDi+ 6ErXh6gqMuqNj0rZC5JVD+dQRqBbdyVfAnNcJlit9ir/7mIG2TNP6DFsDzu3JsxHdEr/ Dsfg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=14gCzT26ZkXitIhogvu1eLM0zvmtjezuLXSkvZLJlrw=; b=WnXlO3a7dtWG+J6y95UpNnutujzKO4urVPlv3KrhuZxRm+HI4izecWrhukb5ZjAHPZ opwU4pU7WVFcKDUeEIaRW0e9gX0T3hAHX2kJN/OTtouqgxyHkmUe9Y5EiWHqXFDknUdv xhX+GcOtxrMk5DTnBbl+UaWi1Sf9E0BaSziBoCw7P8Q/oCEj//X4N7nd3K1m52hLNIaz WHko3oWAZWvce84kbussWiS53mfvAtNtLJc5fcRX/W/ME8NIiMRNrmKCdWxV/Mno0lq5 P8a0K1VKjH/SLZxlmQgBTAz77MWqWzZshpKm7M54lykyT9dheivwBMXOYVPrJK0giuJF ROlg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id p22si15661196ota.43.2019.12.26.02.30.47; Thu, 26 Dec 2019 02:31:02 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726336AbfLZK37 (ORCPT + 99 others); Thu, 26 Dec 2019 05:29:59 -0500 Received: from jabberwock.ucw.cz ([46.255.230.98]:44554 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726055AbfLZK37 (ORCPT ); Thu, 26 Dec 2019 05:29:59 -0500 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 964A61C2103; Thu, 26 Dec 2019 11:29:57 +0100 (CET) Date: Thu, 26 Dec 2019 11:29:56 +0100 From: Pavel Machek To: Guido =?iso-8859-1?Q?G=FCnther?= Cc: Jacek Anaszewski , Dan Murphy , linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/3] leds: lm3692x: Disable chip on brightness 0 Message-ID: <20191226102956.GH4033@amd> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="it/zdz3K1bH9Y8/E" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --it/zdz3K1bH9Y8/E Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed 2019-12-25 12:16:39, Guido G=FCnther wrote: > Otherwise there's a noticeable glow even with brightness 0. Also > turning off the regulator can save additional power. Ok, this will make set brightness slower, but I guess it makes sense. Can you try to toggling brightness quickly from userspace, maybe even =66rom two threads, to ensure nothing really goes wrong there? Hmm. And if this is independend of the other series, tell me and I can apply v2. Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --it/zdz3K1bH9Y8/E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl4Ei6QACgkQMOfwapXb+vKRlACgjsmUKw5HTV41mZpVjYyCe4a+ jxAAn0TJv2kocImeeHf4JNzTV0lAj5vi =iO66 -----END PGP SIGNATURE----- --it/zdz3K1bH9Y8/E--