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 X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61DD3C33CA2 for ; Wed, 8 Jan 2020 16:46:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3900620692 for ; Wed, 8 Jan 2020 16:46:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729304AbgAHQq1 (ORCPT ); Wed, 8 Jan 2020 11:46:27 -0500 Received: from asavdk3.altibox.net ([109.247.116.14]:53116 "EHLO asavdk3.altibox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727148AbgAHQq0 (ORCPT ); Wed, 8 Jan 2020 11:46:26 -0500 Received: from ravnborg.org (unknown [158.248.194.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by asavdk3.altibox.net (Postfix) with ESMTPS id A108220034; Wed, 8 Jan 2020 17:46:19 +0100 (CET) Date: Wed, 8 Jan 2020 17:46:18 +0100 From: Sam Ravnborg To: Arnd Bergmann Cc: Jani Nikula , Maarten Lankhorst , Maxime Ripard , Thierry Reding , David Airlie , Daniel Vetter , Andy Shevchenko , Randy Dunlap , Linus Walleij , Laurent Pinchart , Sean Paul , dri-devel , Maxime Ripard , Emil Velikov , Boris Brezillon , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] drm/drm_panel: fix export of drm_panel_of_backlight, try #3 Message-ID: <20200108164618.GA28588@ravnborg.org> References: <20200107203231.920256-1-arnd@arndb.de> <87zheyqnla.fsf@intel.com> <20200108100831.GA23308@ravnborg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=eMA9ckh1 c=1 sm=1 tr=0 a=UWs3HLbX/2nnQ3s7vZ42gw==:117 a=UWs3HLbX/2nnQ3s7vZ42gw==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=kj9zAlcOel0A:10 a=A96CT9EkDcBwBZB6U8IA:9 a=CjuIK1q_8ugA:10 a=Z5ABNNGmrOfJ6cZ5bIyy:22 a=bWyr8ysk75zN3GCy5bjg:22 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Arnd. > > > All of this is just another hack until the backlight config usage is > > > fixed for good. Do we really want to make this the example to copy paste > > > wherever we hit the issue next? > > > > > > I'm not naking, but I'm not acking either. > > > > I will try to take a look at your old BACKLIGHT_CLASS_DEVICE patch this > > weekend. I think we need that one fixed - and then we can have this mess > > with "drm_panel_of_backlight" fixed in the right way. > > I had also attempted to fix the larger mess around 'select' statements in DRM/FB > around BACKLIGHT_CLASS_DEVICE several times in the past, and even at > some point sent a patch that was acked but never merged and later broke because > of other changes. Any chance you have the patch around or can dig up a pointer? My google foo did not turn up anything. Sam