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 9ACB9F54AD7 for ; Tue, 24 Mar 2026 16:40:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EA21710E672; Tue, 24 Mar 2026 16:40:29 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="Usi8u7sy"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 54BA910E658 for ; Tue, 24 Mar 2026 16:40:28 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 36353419D3; Tue, 24 Mar 2026 16:40:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 609AEC19424; Tue, 24 Mar 2026 16:40:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774370428; bh=kkEoPq9q8fepKtiANcT9ZAfQh5CvujgTy1fMX5zG1GA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Usi8u7syiR8pttrP0If0eBSXVLvECDh4vy08/ZqtVulKRKflVXL3jmVRdohQwKBht pLikhuBCMExn+lDeH6gZOvhrGD5M3hP1lqIHYnzAv8h1HHMojvzMXa5gzawCKPOY1a eP2VC+2G4tfe7JyybigsnG7eTh9RsPeaM7wV6B6BIzFU2+inKczujBFLdhXFfoL2gy rnYVj0DfIip6b1NXGbxPHADZRGyVLbrPc/NrqMJg5deMxaIldA39qLx9J4yPIPZhJg NwmSSN+0BLFj8KbsFRSmClIbvc/QpUY5ipHQ42eIbrqKFyhJUeWnbIgZ1F+xDLL6Rg GW4STqjEN8Cng== Date: Tue, 24 Mar 2026 16:40:23 +0000 From: Lee Jones To: "Rafael J. Wysocki" Cc: Daniel Thompson , dri-devel@lists.freedesktop.org, LKML , Linux ACPI , Jingoo Han , Helge Deller , linux-fbdev@vger.kernel.org Subject: Re: [PATCH v1] backlight: apple_bl: Convert to a platform driver Message-ID: <20260324164023.GE2902881@google.com> References: <5084777.GXAFRqVoOG@rafael.j.wysocki> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, 24 Mar 2026, Rafael J. Wysocki wrote: > On Mon, Mar 23, 2026 at 10:57 AM Daniel Thompson wrote: > > > > On Sat, Mar 14, 2026 at 12:50:11PM +0100, Rafael J. Wysocki wrote: > > > From: "Rafael J. Wysocki" > > > > > > In all cases in which a struct acpi_driver is used for binding a driver > > > to an ACPI device object, a corresponding platform device is created by > > > the ACPI core and that device is regarded as a proper representation of > > > underlying hardware. Accordingly, a struct platform_driver should be > > > used by driver code to bind to that device. There are multiple reasons > > > why drivers should not bind directly to ACPI device objects [1]. > > > > > > Overall, it is better to bind drivers to platform devices than to their > > > ACPI companions, so convert the Apple Backlight ACPI driver to a > > > platform one. > > > > > > While this is not expected to alter functionality, it changes sysfs > > > layout and so it will be visible to user space. > > > > > > Link: https://lore.kernel.org/all/2396510.ElGaqSPkdT@rafael.j.wysocki/ [1] > > > Signed-off-by: Rafael J. Wysocki > > > > Reviewed-by: Daniel Thompson (RISCstar) > > Thanks! > > Unless anyone has any objections or concerns (in which case please let > me know), I'm going to queue up this one for 7.1. Why would you queue-up a Backlight patch? I'd rather this goes in via the Backlight tree. -- Lee Jones [李琼斯]