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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 00BCCC18E5C for ; Tue, 10 Mar 2020 07:05:39 +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 D27C724682 for ; Tue, 10 Mar 2020 07:05:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D27C724682 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de 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 96FDD6E06D; Tue, 10 Mar 2020 07:05:37 +0000 (UTC) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by gabe.freedesktop.org (Postfix) with ESMTPS id A56EC6E06D for ; Tue, 10 Mar 2020 07:05:35 +0000 (UTC) Received: from pty.hi.pengutronix.de ([2001:67c:670:100:1d::c5]) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jBYxK-0006u3-4g; Tue, 10 Mar 2020 08:05:34 +0100 Received: from mfe by pty.hi.pengutronix.de with local (Exim 4.89) (envelope-from ) id 1jBYxI-0000rW-CL; Tue, 10 Mar 2020 08:05:32 +0100 Date: Tue, 10 Mar 2020 08:05:32 +0100 From: Marco Felsch To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 15/33] drm/panel-simple: Fix dotclock for EDT ET035012DM6 Message-ID: <20200310070532.7ltpdskupxxtd3me@pengutronix.de> References: <20200302203452.17977-1-ville.syrjala@linux.intel.com> <20200302203452.17977-16-ville.syrjala@linux.intel.com> <20200303073320.2udpokcs2ync4hpy@pengutronix.de> <20200303145251.GX13686@intel.com> <20200306080257.2v7knpjavace7jw4@pengutronix.de> <20200309131843.GW13686@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200309131843.GW13686@intel.com> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-IRC: #ptxdist @freenode X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-Uptime: 08:00:25 up 115 days, 22:19, 139 users, load average: 0.11, 0.05, 0.01 User-Agent: NeoMutt/20170113 (1.7.2) X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::c5 X-SA-Exim-Mail-From: mfe@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: dri-devel@lists.freedesktop.org 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: Thierry Reding , Andreas Pretzsch , dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 20-03-09 15:18, Ville Syrj=E4l=E4 wrote: > On Fri, Mar 06, 2020 at 09:02:57AM +0100, Marco Felsch wrote: > > On 20-03-03 16:52, Ville Syrj=E4l=E4 wrote: > > > On Tue, Mar 03, 2020 at 08:33:20AM +0100, Marco Felsch wrote: > > > > Hi Ville, > > > > = > > > > On 20-03-02 22:34, Ville Syrjala wrote: > > > > > From: Ville Syrj=E4l=E4 > > > > > = > > > > > The currently listed dotclock disagrees with the currently > > > > > listed vrefresh rate. Change the dotclock to match the vrefresh. > > > > > = > > > > > Someone tell me which (if either) of the dotclock or vreresh is > > > > > correct? > > > > = > > > > Pls, check the datasheet which is linked within the comment. We hit= the > > > > vrefresh exactly if we are in SYNC MODE. > > > = > > > It's too much work to start hunting datasheets for all these > > > and figuring out what's going on in each case. Pls just > > > inform me which way is correct if you know the details. > > = > > How do you know that the clock is wrong if it is to much work? As I said > > the clock is completely fine. > = > htotal*vtotal*vrefresh !=3D clock, so one or both are incorrect. I checked the values using this equation: clock / (htotal * vtotal) =3D vrefresh. Regards, Marco _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel