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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5281FECAAA1 for ; Mon, 24 Oct 2022 18:11:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0F3CF10E6D3; Mon, 24 Oct 2022 18:11:26 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6450810E6D3; Mon, 24 Oct 2022 18:11:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666635083; x=1698171083; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version; bh=5z5J6hyo+xzhPJHRSqQ2l3yOfGRRo8+TjXETgVVrD8A=; b=FVYR0n9zOXJnS/P/R0ocvn+vdcyRzuQ2zPhFwbEQiqnOADKe1u5j2JbB oYmfXOZ1pMdthwNAj3hU+lzEku1wJtl0Vfz8936vdqyuH4fvxI5HuJ1oa cHmCVRNESbMijTnbstkiNfISqdPzFZgN9zqiNCGAhRpksTBg4siH5Qvw2 voD/JM+ySWa1Q8IzwkfAqdR783neBSLpljQ0xaGKCwm/u8LQXtS5fPMjU aR3MkmKisShWTpNJRPZraZpMgmD+B3iqrpLWBYUzdt3upeMoaG9WeRmBK JCS7sJdNoMUuCYKKDIZun829SJNkb0Fe7LyCCNYJF6LzV/JldhpQei70b Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="371707016" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="371707016" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.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 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 Subject: Re: [Intel-gfx] [PATCH 00/22] Fallback to native backlight X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Ike Panhc , "Rafael J. Wysocki" , dri-devel@lists.freedesktop.org, Azael Avalos , Mattia Dongili , Daniel Dadap , Henrique de Moraes Holschuh , David Airlie , Daniel Thompson , Jonathan Woithe , Jonathan Corbet , "Lee, Chun-Yi" , Helge Deller , Lee Jones , Robert Moore , linux-acpi@vger.kernel.org, Cezary Jackiewicz , Len Brown , Kenneth Chan , Corentin Chary , intel-gfx@lists.freedesktop.org, acpi4asus-user@lists.sourceforge.net, Maxime Ripard , Mark Gross , Rodrigo Vivi , Daniel Vetter , platform-driver-x86@vger.kernel.org, devel@acpica.org, ibm-acpi-devel@lists.sourceforge.net, Jingoo Han , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Zimmermann , Pali =?utf-8?Q?Roh=C3=A1r?= Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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