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 10943C433EF for ; Wed, 25 May 2022 03:24:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231514AbiEYDYN (ORCPT ); Tue, 24 May 2022 23:24:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230402AbiEYDYM (ORCPT ); Tue, 24 May 2022 23:24:12 -0400 Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D1839644C4 for ; Tue, 24 May 2022 20:24:11 -0700 (PDT) Received: from ip6-localhost (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 24P3FVYw012347; Tue, 24 May 2022 22:15:32 -0500 Message-ID: Subject: Re: [PATCH 2/2] drm/tiny: Add ofdrm for Open Firmware framebuffers From: Benjamin Herrenschmidt To: Thomas Zimmermann , Javier Martinez Canillas , airlied@linux.ie, daniel@ffwll.ch, deller@gmx.de, maxime@cerno.tech, sam@ravnborg.org, msuchanek@suse.de, mpe@ellerman.id.au, paulus@samba.org Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Wed, 25 May 2022 13:15:31 +1000 In-Reply-To: <8cd53439-46f1-117c-7aae-7630a6466ab8@suse.de> References: <20220518183006.14548-1-tzimmermann@suse.de> <20220518183006.14548-3-tzimmermann@suse.de> <84a550c3-dcef-17ac-0ae5-666cdf0fb67e@redhat.com> <8cd53439-46f1-117c-7aae-7630a6466ab8@suse.de> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.36.5-0ubuntu1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org On Sun, 2022-05-22 at 21:35 +0200, Thomas Zimmermann wrote: > > Interesting. Did you find some formats that were not supported ? > > We still don't support XRGB1555. If the native buffer uses this format, > we'd have no conversion helper. In this case, we rely on userspace/fbcon > to use the native format exclusively. (BTW, I asked one of my coworkers > to implement XRGB1555 to make her familiar with DRM. That's why I > haven't sent a patch yet.) > Various old macs do 1555 ... Cheers, Ben.