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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C7273C433FE for ; Tue, 21 Dec 2021 15:47:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 23F1210F4E1; Tue, 21 Dec 2021 15:47:35 +0000 (UTC) Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9BE9510F41C for ; Tue, 21 Dec 2021 15:47:34 +0000 (UTC) Received: by mail-lf1-x130.google.com with SMTP id k21so12137052lfu.0 for ; Tue, 21 Dec 2021 07:47:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=P/AjqKnlbhjD52zhKuwLST7SIhcLpZikm45Z0zGIr8g=; b=oz1TU+1UCx2PBCN4OQBrtioUPbG6hLhpDKNcLgx9IEUzhslAyNQT+3S/srKEeF/0L1 mnDjOYEhP/7M1h0rnzPr5H1K6gZPtML7CnDtqjnJBfPyj8AvdpMcIJTFcQrqvOKFrvsE IpNCoO23yd+z7bpbjZH71rSKMDI/KiwYpoojjEDHKADkEjbH+80NXYFVhJyogR9YjLhZ XdDv1GggRi/wCWqiMd1WOiEeKTgMK3qYnku7fzegx6DuXiy8I9bQ87Tnp0AboAc4gLl3 zERM1MYIwOjuaXXt32oMFIkx9YAsfQBiAyIL2VDZQLZh8tyH6QD9bf9Rw8YWTTNy3iy9 hSJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=P/AjqKnlbhjD52zhKuwLST7SIhcLpZikm45Z0zGIr8g=; b=XeOIJMJEyRT2ISCZs6uYsGrUcXeS4rzwg4WxVQ+8qz5EHFalqAz59htm1P1BhXfdVX cvYYp+FiOaiNI6/l147pKF9haA9B7R9WIRIoqZjXmOHouszha6Pj+1hcyf+7+1VVO5E/ iU3VlJKFuNLwlakVpLE+uOkHXGKl+zhA3ZGhDUWOqs7LqAydR9ca5JC+k0Q1EYnTyVi9 7rVjjheIbCjpivMotEX/zazn0+OVcOGg8DVC3NXFdBSRFIkZasDUEDdoCIF8d+6fslA2 qJObWrseg6TFIjinCSdq1j1cNCXJ4fJQ3bgbsq22ZZks6hSJCOKk5/iZN3CjEhvHCtxJ U6HA== X-Gm-Message-State: AOAM531T1st5Cv4acAlM2dNXKTbF4bbVx8ZBnO3w66R6VPPxyvqP1VW7 AZrPFSy021FBnQtrHIwImk8= X-Google-Smtp-Source: ABdhPJwpUWaPqAbiSqRSSP3dYUaQSUPtyJxaTeDK0cFwBA/ikKMVtsdvGE+98TsRLV0XpDdW/0aYog== X-Received: by 2002:a19:6e42:: with SMTP id q2mr3478719lfk.60.1640101652838; Tue, 21 Dec 2021 07:47:32 -0800 (PST) Received: from [192.168.2.145] (46-138-43-24.dynamic.spd-mgts.ru. [46.138.43.24]) by smtp.googlemail.com with ESMTPSA id c20sm2767716ljf.37.2021.12.21.07.47.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Dec 2021 07:47:32 -0800 (PST) Subject: Re: [PATCH 0/2] drm/tegra: Fix panel support on Venice 2 and Nyan To: Thierry Reding References: <20211220104855.428290-1-thierry.reding@gmail.com> From: Dmitry Osipenko Message-ID: Date: Tue, 21 Dec 2021 18:47:31 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Graichen , Douglas Anderson , dri-devel@lists.freedesktop.org, Jon Hunter , Laurent Pinchart , linux-tegra@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 21.12.2021 13:58, Thierry Reding пишет: .. >>>> The panel->ddc isn't used by the new panel-edp driver unless panel is >>>> compatible with "edp-panel". Hence the generic_edp_panel_probe() should >>>> either fail or crash for a such "edp-panel" since panel->ddc isn't fully >>>> instantiated, AFAICS. >>> >>> I've tested this and it works fine on Venice 2. Since that was the >>> reference design for Nyan, I suspect that Nyan's will also work. >>> >>> It'd be great if Thomas or anyone else with access to a Nyan could >>> test this to verify that. >> >> There is no panel-edp driver in the v5.15. The EOL of v5.15 is Oct, >> 2023, hence we need to either use: > > All the (at least relevant) functionality that is in panel-edp was in > panel-simple before it was moved to panel-edp. I've backported this set > of patches to v5.15 and it works just fine there. Will we be able to add patch to bypass the panel's DT ddc-i2c-bus on Nyan to keep the older DTBs working?