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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 D6EFDC388F7 for ; Sat, 7 Nov 2020 11:09:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9237B206F4 for ; Sat, 7 Nov 2020 11:09:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727494AbgKGLJ3 (ORCPT ); Sat, 7 Nov 2020 06:09:29 -0500 Received: from asavdk3.altibox.net ([109.247.116.14]:36522 "EHLO asavdk3.altibox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726242AbgKGLJ3 (ORCPT ); Sat, 7 Nov 2020 06:09:29 -0500 Received: from ravnborg.org (unknown [188.228.123.71]) (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 22CB620023; Sat, 7 Nov 2020 12:09:27 +0100 (CET) Date: Sat, 7 Nov 2020 12:09:25 +0100 From: Sam Ravnborg To: Stephen Boyd Cc: Andrzej Hajda , Neil Armstrong , Jernej Skrabec , Jonas Karlman , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Douglas Anderson , Sean Paul , Laurent Pinchart Subject: Re: [PATCH v3 0/4] drm/bridge: ti-sn65dsi86: Support EDID reading Message-ID: <20201107110925.GB912360@ravnborg.org> References: <20201102181144.3469197-1-swboyd@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201102181144.3469197-1-swboyd@chromium.org> X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=VbvZwmh9 c=1 sm=1 tr=0 a=S6zTFyMACwkrwXSdXUNehg==:117 a=S6zTFyMACwkrwXSdXUNehg==:17 a=kj9zAlcOel0A:10 a=c6rWFHShf1NgvZlil7gA:9 a=CjuIK1q_8ugA:10 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Stephen On Mon, Nov 02, 2020 at 10:11:40AM -0800, Stephen Boyd wrote: > This patch series cleans up the DDC code a little bit so that > it is more efficient time wise and supports grabbing the EDID > of the eDP panel over the aux channel. I timed this on a board > I have on my desk and it takes about 20ms to grab the EDID out > of the panel and make sure it is valid. > > The first two patches seem less controversial so I stuck them at > the beginning. The third patch does the EDID reading and caches > it so we don't have to keep grabbing it over and over again. And > finally the last patch updates the reply field so that short > reads and nacks over the channel are reflected properly instead of > treating them as some sort of error that can't be discerned. > > Stephen Boyd (4): > drm/bridge: ti-sn65dsi86: Combine register accesses in > ti_sn_aux_transfer() > drm/bridge: ti-sn65dsi86: Make polling a busy loop > drm/bridge: ti-sn65dsi86: Read EDID blob over DDC > drm/bridge: ti-sn65dsi86: Update reply on aux failures All applied to drm-misc-next, thanks, Sam