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 3F671C4167B for ; Mon, 27 Nov 2023 12:44:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EA4E810E021; Mon, 27 Nov 2023 12:44:53 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 98FD810E021 for ; Mon, 27 Nov 2023 12:44:51 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by ams.source.kernel.org (Postfix) with ESMTP id CD221B82905; Mon, 27 Nov 2023 12:44:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B85B4C433C7; Mon, 27 Nov 2023 12:44:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701089089; bh=A14BRrGRbT7av40PhXMj0HS+RBvdVsYZIOGpQ37tpnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FN/20vTB3kN+TGx3aaURGkKj3OW5/kXf7nlbGZtT6aNu0mhdVH1FADHVW+WvQu7mc 6dHIj/Df9J8lg/vR47JMZq97IhUqRUNE5IgyV0HnPUy3VeG995A0az4sC01TIXuhS/ cvySHtf/Qco9u13gpIORXuBchpQduL8lgFvQAuZHs7BmZPTdSNdaoqlycXtvLUNcam r20luoucHSpZf2oVDVPsNlzq8HC6TAh5uU08LcaAjsDBLemT1UHOcU6JTWk6hyPUlQ xd5sTVwNHEhJLoqlYWrvC6p7gdq8LrjgqIjM0hxP1NsSOMo551HKc0B3eTW4VaJQ35 r5eLQkHqpy5IQ== From: Michael Walle To: tony@atomide.com Subject: Re: [PATCH 1/6] dt-bindings: tc358775: Add support for tc358765 Date: Mon, 27 Nov 2023 13:44:30 +0100 Message-Id: <20231127124430.2153227-1-mwalle@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231126163247.10131-1-tony@atomide.com> References: <20231126163247.10131-1-tony@atomide.com> MIME-Version: 1.0 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: Michael Walle , krzysztof.kozlowski+dt@linaro.org, dri-devel@lists.freedesktop.org, Laurent.pinchart@ideasonboard.com, andrzej.hajda@intel.com, ivo.g.dimitrov.75@gmail.com, rfoss@kernel.org, jernej.skrabec@gmail.com, simhavcs@gmail.com, merlijn@wizzup.org, devicetree@vger.kernel.org, conor+dt@kernel.org, jonas@kwiboo.se, pavel@ucw.cz, mripard@kernel.org, robh+dt@kernel.org, philipp@uvos.xyz, neil.armstrong@linaro.org, sre@kernel.org, tzimmermann@suse.de Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi, > The tc358765 is similar to tc358775 except for the stdby-gpios. Bad timing (for me). I'm about to send a bigger patch series for the tc358775 which fixes the (completely) broken initialialization. And also contains some of your fixes. That being said, I intend to make the standby gpio optional also for the tc358755, because it might just be hardwired on the board. But second, I'm really curious if this bridge is working for you correctly as it is at the moment. One particular thing I've noticed is that you must release the reset while both the clock and the data lanes are in LP11 mode. Otherwise, the bridge won't work properly (i.e. horizontally shifted picture, or no picture at all). What DSI host controller are you using? -michael