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, URIBL_BLOCKED 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 D2F3BC433DB for ; Thu, 25 Feb 2021 12:46:51 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 61BF964EB7 for ; Thu, 25 Feb 2021 12:46:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 61BF964EB7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B04236E10A; Thu, 25 Feb 2021 12:46:50 +0000 (UTC) Received: from muru.com (muru.com [72.249.23.125]) by gabe.freedesktop.org (Postfix) with ESMTP id 1F7606E10A for ; Thu, 25 Feb 2021 12:46:49 +0000 (UTC) Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id 9632E807A; Thu, 25 Feb 2021 12:47:18 +0000 (UTC) Date: Thu, 25 Feb 2021 14:46:43 +0200 From: Tony Lindgren To: Tomi Valkeinen Subject: Re: [PATCH v4 24/80] drm/omap: dsi: move TE GPIO handling into core Message-ID: References: <20201124124538.660710-1-tomi.valkeinen@ti.com> <20201124124538.660710-25-tomi.valkeinen@ti.com> <5b469566-c926-7e1f-8872-84774b96f389@ideasonboard.com> <4432cf2c-fe15-dab0-3034-789f6d711396@ideasonboard.com> <7c852efd-560a-4dbb-ed04-e4812b343a33@ideasonboard.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <7c852efd-560a-4dbb-ed04-e4812b343a33@ideasonboard.com> 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: hns@goldelico.com, Sekhar Nori , Sebastian Reichel , dri-devel@lists.freedesktop.org, Sebastian Reichel , Laurent Pinchart , linux-omap@vger.kernel.org, Nikhil Devshatwar Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" * Tomi Valkeinen [210222 08:47]: > On 18/02/2021 07:57, Tony Lindgren wrote: > > Oh cool that you have those running again/still :) In this case there > > is no te-gpios if that might make a difference. > > No, GPIO TE is not used on OMAP4 SDP either. OK > >> So these errors start from the boot? Or only when running something > >> specific? > > > > They start from the boot when modules are loaded. > > Normally there are no updates happening unless an userspace app is > running, but I guess you have fb console enabled, with the blinking > cursor which makes the updates. > > I usually don't have fbcon enabled, but OMAP4 SDP works fine for me with > fbcon too... I'm using loadable modules with omap2plus_defconfig in case that makes a difference. Maybe there's some state preserved somewhere if deferred probe happens? > >> Is there a bootloader that initializes the display? > > > > Yes it boots with kexec. > > Is that open source? Can you disable the display setup from the > bootloader? Maybe the DSS or the panel is left into a state that for > whatever reason makes the kernel drivers break. Well that's a signed kernel booting kexec. But it has been working just fine for years now so I'd rather not blame that. > Or maybe a DSS or DSI reset via SYSCONFIG at probe would help, or panel > reset if it has such a feature. Maybe. But why would the $subject patch cause the errors? Regards, Tony _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel