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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08FD0C77B7C for ; Wed, 10 May 2023 04:38:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235312AbjEJEif (ORCPT ); Wed, 10 May 2023 00:38:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229461AbjEJEid (ORCPT ); Wed, 10 May 2023 00:38:33 -0400 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BBA23C3A; Tue, 9 May 2023 21:38:31 -0700 (PDT) Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:b231:465::202]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4QGMjG03vPz9sbC; Wed, 10 May 2023 06:38:26 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oltmanns.dev; s=MBO0001; t=1683693506; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=0TGqUxEs7+KA0bUhtlK1lVZB5oosirddpuH1iKWN/KY=; b=qZqEMiiK9m96NDdgm0AnO6/mf8bQdwNxo1oktDksIzGixa+60AHTXNKvWfMMF6WhH9gKJs gHE9iAE1unK6VYv+saT9wUn30yAzcKzRIlG8cJVP7esjgJ9/aZGMgkUk6aND/gCVcJXyq6 cjd2yXOLsKrff8lUanv5SudV64JiUCdic170HU68nroUZJNAc1lbLCmjfopAQnyfWjrLrB jzLbHb0lFIVJ/13nse6u0rIu6LiDSXGZI9818rUjqHE3n6OJDKN5rTTujXAHXtju3w1USK rX1GF1M7daxUuV1LoOt8h/BWlKNx/oOgMboHfWXshP/Q2fgqZXt9pJBpk/Gxew== References: <20230505052110.67514-1-me@crly.cz> <87jzxjp5tp.fsf@oltmanns.dev> From: Frank Oltmanns To: Roman Beranek Cc: Maxime Ripard , David Airlie , Daniel Vetter , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Icenowy Zheng , Ondrej Jirman , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 0/4] drm: sun4i: set proper TCON0 DCLK rate in DSI mode Date: Wed, 10 May 2023 06:30:04 +0200 In-reply-to: Message-ID: <874jokg5sf.fsf@oltmanns.dev> MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: 4QGMjG03vPz9sbC Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Roman, On 2023-05-09 at 13:04:50 +0200, "Roman Beranek" wrote: > On Mon May 8, 2023 at 10:47 AM CEST, Frank Oltmanns wrote: >> I played back a 60 fps video (10 seconds) and recorded the panel's >> output with a 240 fps camera. I noticed only 2 dropped frames, that I >> account to the imperfect data rate of 107.8MHz instead of 108 MHz due >> to pll-video0's rate being 294MHz instead of the 297 MHz for reasons >> I described in the thread on your v2 of this patch [4]). > > Yes. That's what should happen, right? Or do you report this as a > defect? Sorry, I didn't communicate more clearly. Without your patch, I'm losing a number of frames in the realm of three digits. With your patch I only lost 2 frames which is expetcted. Your patches are a big improvement. This is the opposite of a defect report. :-) Thanks, Frank > > Roman