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 6215DC67871 for ; Mon, 24 Oct 2022 19:44:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232195AbiJXTov (ORCPT ); Mon, 24 Oct 2022 15:44:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233507AbiJXToE (ORCPT ); Mon, 24 Oct 2022 15:44:04 -0400 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4CA7194219; Mon, 24 Oct 2022 11:12:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666635141; x=1698171141; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version; bh=5z5J6hyo+xzhPJHRSqQ2l3yOfGRRo8+TjXETgVVrD8A=; b=CTreJ/NTlalPXaOM+VYIQ30+UirYB0cafgqkos+0j5oy3cgHWYw7LuOZ H46KTgzh4inW7Y4JY3enkMEmQ4/H1dlplhzmigdzxecUwDWqD/4ENtikS MwoRzhj3NtFCfUMVT/oxF71d3HPGerykryaksqMgcFQu2btBXj5aOtubb r3ZCCUugQ8xKTDDKAyn6oX7tNUDDmhZoOb/2OveaOVrnDCMEx1Q6+khI0 ptZhdXud2mHLmsXw48XlobER/BC++TMPpW/sLVwCZb4bmjteJ3B+Hi932 krtHztMHY9HLvk4quni6YmhdKxT/cHBkDkI8PeiJz+gE47LrRq+5qUkuz w==; X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="393805616" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="393805616" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2022 11:11:22 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="609286400" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="609286400" Received: from emontau-mobl2.ger.corp.intel.com (HELO localhost) ([10.252.52.221]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2022 11:11:11 -0700 From: Jani Nikula To: Akihiko Odaki , Hans de Goede Cc: David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Jonathan Corbet , "Rafael J. Wysocki" , Len Brown , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , "Lee, Chun-Yi" , Mark Gross , Corentin Chary , Cezary Jackiewicz , Matthew Garrett , Pali =?utf-8?Q?Roh=C3=A1r?= , Jonathan Woithe , Ike Panhc , Daniel Dadap , Kenneth Chan , Mattia Dongili , Henrique de Moraes Holschuh , Azael Avalos , Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller , Robert Moore , dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, intel-gfx@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, acpi4asus-user@lists.sourceforge.net, ibm-acpi-devel@lists.sourceforge.net, linux-fbdev@vger.kernel.org, devel@acpica.org Subject: Re: [PATCH 00/22] Fallback to native backlight In-Reply-To: <78ad5d7b-4078-0b8e-f4aa-6c8113631359@daynix.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <20221024113513.5205-1-akihiko.odaki@daynix.com> <746e5cc6-516f-8f69-9d4b-8fe237de8fd6@redhat.com> <60672af8-05d2-113c-12b9-d635608be0dd@redhat.com> <7373e258-f7cc-4416-9b1c-c8c9dab59ada@daynix.com> <78ad5d7b-4078-0b8e-f4aa-6c8113631359@daynix.com> Date: Mon, 24 Oct 2022 21:11:08 +0300 Message-ID: <87o7u1drcz.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Tue, 25 Oct 2022, Akihiko Odaki wrote: > That aside, the first patch in this series can be applied without the > later patches so you may have a look at it. It's fine if you don't merge > it though since it does not fix really a pragmatic bug as its message says. I think it's problematic because it needlessly ties i915 backlight operation to existence of backlight devices that may not be related to Intel GPU at all. The direction should be multiple supported backlight devices, across GPUs and connectors, but only one per display. BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center