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,URIBL_BLOCKED,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 9710FCA9EAF for ; Thu, 24 Oct 2019 13:23:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 698402084C for ; Thu, 24 Oct 2019 13:23:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2502518AbfJXNXE (ORCPT ); Thu, 24 Oct 2019 09:23:04 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:51976 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2502515AbfJXNXD (ORCPT ); Thu, 24 Oct 2019 09:23:03 -0400 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 57F7828AE4A; Thu, 24 Oct 2019 14:23:01 +0100 (BST) Date: Thu, 24 Oct 2019 15:22:57 +0200 From: Boris Brezillon To: Neil Armstrong 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 , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Rob Herring , Mark Rutland , devicetree@vger.kernel.org Subject: Re: [PATCH v3 00/21] drm: Add support for bus-format negotiation Message-ID: <20191024152257.1357e313@collabora.com> In-Reply-To: References: <20191023154512.9762-1-boris.brezillon@collabora.com> Organization: Collabora X-Mailer: Claws Mail 3.17.3 (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 Thu, 24 Oct 2019 13:27:16 +0200 Neil Armstrong wrote: > hi Boris, > > On 23/10/2019 17:44, 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. > > > > Major changes since v2: > > * Get rid of the dummy bridge embedded in drm_encoder and let encoder > > drivers provide their own bridge element > > * Clarify APIs and improve the doc > > * Propagate bus flags by default > > Seems you forgot my reviewed-bys on patches 5, 8, 11 & 13 Oops, indeed. Can you add them back? From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: Re: [PATCH v3 00/21] drm: Add support for bus-format negotiation Date: Thu, 24 Oct 2019 15:22:57 +0200 Message-ID: <20191024152257.1357e313@collabora.com> References: <20191023154512.9762-1-boris.brezillon@collabora.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by gabe.freedesktop.org (Postfix) with ESMTPS id 60CDD6E3FB for ; Thu, 24 Oct 2019 13:23:03 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Neil Armstrong Cc: Mark Rutland , dri-devel@lists.freedesktop.org, Thierry Reding , Laurent Pinchart , kernel@collabora.com, Sam Ravnborg , Nikita Yushchenko , Andrey Smirnov , Kyungmin Park , Chris Healy , devicetree@vger.kernel.org, Jonas Karlman , Rob Herring , Jernej Skrabec , Seung-Woo Kim List-Id: dri-devel@lists.freedesktop.org T24gVGh1LCAyNCBPY3QgMjAxOSAxMzoyNzoxNiArMDIwMApOZWlsIEFybXN0cm9uZyA8bmFybXN0 cm9uZ0BiYXlsaWJyZS5jb20+IHdyb3RlOgoKPiBoaSBCb3JpcywKPiAKPiBPbiAyMy8xMC8yMDE5 IDE3OjQ0LCBCb3JpcyBCcmV6aWxsb24gd3JvdGU6Cj4gPiBUaGlzIHBhdGNoIHNlcmllcyBhaW1z IGF0IGFkZGluZyBzdXBwb3J0IGZvciBydW50aW1lIGJ1cy1mb3JtYXQKPiA+IG5lZ290aWF0aW9u IGJldHdlZW4gYWxsIGVsZW1lbnRzIG9mIHRoZQo+ID4gJ2VuY29kZXIgLT4gYnJpZGdlcyAtPiBj b25uZWN0b3IvZGlzcGxheScgc2VjdGlvbiBvZiB0aGUgcGlwZWxpbmUuCj4gPiAKPiA+IEluIG9y ZGVyIHRvIHN1cHBvcnQgdGhhdCwgd2UgbmVlZCBkcm0gYnJpZGdlcyB0byBmdWxseSB0YWtlIHBh cnQgaW4gdGhlCj4gPiBhdG9taWMgc3RhdGUgdmFsaWRhdGlvbiBwcm9jZXNzLCB3aGljaCByZXF1 aXJlcyBhZGRpbmcgYQo+ID4gZHJtX2JyaWRnZV9zdGF0ZSBhbmQgYSBuZXcgZHJtX2JyaWRnZV9m dW5jcy5hdG9taWNfY2hlY2soKSBob29rLgo+ID4gT25jZSB0aG9zZSBiYXNpYyBidWlsZGluZyBi bG9ja3MgYXJlIGluIHBsYWNlLCB3ZSBjYW4gYWRkIG5ldyBob29rcyB0bwo+ID4gYWxsb3cgYnVz IGZvcm1hdCBuZWdvdGlhdGlvbiAodGhvc2UgYXJlIGNhbGxlZCBqdXN0IGJlZm9yZSAgCj4gPiAt PmF0b21pY19jaGVjaygpKS4gVGhlIGJ1cyBmb3JtYXQgc2VsZWN0aW9uIGlzIGRvbmUgYXQgcnVu dGltZSBieSAgCj4gPiB0ZXN0aW5nIGFsbCBwb3NzaWJsZSBjb21iaW5hdGlvbnMgYWNyb3NzIHRo ZSB3aG9sZSBicmlkZ2UgY2hhaW4gdW50aWwKPiA+IG9uZSBpcyByZXBvcnRlZCB0byB3b3JrLgo+ ID4gCj4gPiBNYWpvciBjaGFuZ2VzIHNpbmNlIHYyOgo+ID4gKiBHZXQgcmlkIG9mIHRoZSBkdW1t eSBicmlkZ2UgZW1iZWRkZWQgaW4gZHJtX2VuY29kZXIgYW5kIGxldCBlbmNvZGVyCj4gPiAgIGRy aXZlcnMgcHJvdmlkZSB0aGVpciBvd24gYnJpZGdlIGVsZW1lbnQKPiA+ICogQ2xhcmlmeSBBUElz IGFuZCBpbXByb3ZlIHRoZSBkb2MKPiA+ICogUHJvcGFnYXRlIGJ1cyBmbGFncyBieSBkZWZhdWx0 ICAKPiAKPiBTZWVtcyB5b3UgZm9yZ290IG15IHJldmlld2VkLWJ5cyBvbiBwYXRjaGVzIDUsIDgs IDExICYgMTMKCk9vcHMsIGluZGVlZC4gQ2FuIHlvdSBhZGQgdGhlbSBiYWNrPwpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBs aXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWw=