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_2 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 A236DC43603 for ; Wed, 4 Dec 2019 09:10:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 76456206DB for ; Wed, 4 Dec 2019 09:10:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727158AbfLDJKD (ORCPT ); Wed, 4 Dec 2019 04:10:03 -0500 Received: from bhuna.collabora.co.uk ([46.235.227.227]:47610 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725922AbfLDJKC (ORCPT ); Wed, 4 Dec 2019 04:10:02 -0500 Received: from localhost (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 9238B291115; Wed, 4 Dec 2019 09:10:00 +0000 (GMT) Date: Wed, 4 Dec 2019 10:09:57 +0100 From: Boris Brezillon To: Laurent Pinchart Cc: dri-devel@lists.freedesktop.org, Lucas Stach , Chris Healy , Andrey Smirnov , Nikita Yushchenko , kernel@collabora.com, Daniel Vetter , Inki Dae , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Thierry Reding , Sam Ravnborg , Philipp Zabel , Rob Clark , Andrzej Hajda , Neil Armstrong , Jonas Karlman , Jernej Skrabec , Rob Herring , Mark Rutland , devicetree@vger.kernel.org, Eric Anholt Subject: Re: [PATCH v4 00/11] drm: Add support for bus-format negotiation Message-ID: <20191204100957.15406559@collabora.com> In-Reply-To: <20191203181924.GU4730@pendragon.ideasonboard.com> References: <20191203141515.3597631-1-boris.brezillon@collabora.com> <20191203181924.GU4730@pendragon.ideasonboard.com> Organization: Collabora X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Tue, 3 Dec 2019 20:19:24 +0200 Laurent Pinchart wrote: > Hi Boris, > > On Tue, Dec 03, 2019 at 03:15:04PM +0100, Boris Brezillon wrote: > > This patch series aims at adding support for runtime bus-format > > negotiation between all elements of the > > 'encoder -> bridges -> connector/display' section of the pipeline. > > > > In order to support that, we need drm bridges to fully take part in the > > atomic state validation process, which requires adding a > > drm_bridge_state and a new drm_bridge_funcs.atomic_check() hook. > > Once those basic building blocks are in place, we can add new hooks to > > allow bus format negotiation (those are called just before > > ->atomic_check()). The bus format selection is done at runtime by > > testing all possible combinations across the whole bridge chain until > > one is reported to work. > > > > No Major changes in this v4. I think I addressed all comments I got > > from Neil and Laurent (thanks for the detailed reviews BTW). Note that > > this version only contains core changes. Once those changes are merged > > I'll send the imx/panel/lvds-codec specific bits. > > I think it would make sense to fast-track patches 01 to 07 (a bit > selfishly as I would have a need for them in omapdrm :-)) Will do that end of this week. >, but starting > from 08 I wonder if it wouldn't make more sense to merge them with the > imx/panel/lvds-codec bits to have a user. I'd really like to see that happen early in this release cycle so we can catch bugs before those commits reach Linus' tree, and the lvds-codec changes depend on your PR. Can we make sure this one is merged just after the MW has closed and the drm-next -> drm-misc-next back merge done just after that?