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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 AD28AC76188 for ; Mon, 3 Apr 2023 18:46:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:References:Subject:Cc:To: From:Message-Id:Date:Mime-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tZq6payX1APIO9uKEqmtCrTqdaQmXlwqUDmhoGeTvl8=; b=q5QUpVQO1jg2vI lKs08ge8xkzIYrBH8I5laJpDUzW9PipGAUInRGq9kWgKLi2tY0Kn8IVBAO7gQ0wKTRj1Tqj61qW9L ZG5s4QwURxy45B0GnXFqq6Ope9pQeAm0UMKvWfthmWNlZQW+Ysl2WWTSsYEn4qzupQwaszLuwzd+m H3wdgTgXyLw+WOdA0BD+1o7VrLGIt91IPznP8k9nhDsOXgNyWPd6PEZ/6WbmIPJU7FNB2Qafe9HQ8 dnZd2bm/Jqqt4Jz7lWNJ03fsaX/fjozzji8CvcyFOHFFUqceOHekFTkzdzpBvXGZkSZLqnsTvDHEn zYWpk+PqL0qeN5pQWz1w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pjPBO-00GHfR-21; Mon, 03 Apr 2023 18:45:34 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pjPBN-00GHef-1b for linux-arm-kernel@bombadil.infradead.org; Mon, 03 Apr 2023 18:45:33 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:References:Subject:Cc:To: From:Message-Id:Date:Content-Type:Content-Transfer-Encoding:Mime-Version: Sender:Reply-To:Content-ID:Content-Description; bh=gwmDaBfdpINbLHryMxBxZ5HFeF6lCAutGgrkNzu6I1E=; b=ZLxYfmOY5e7vhQKlWD5bhHz1Fi KmtDE/R0mMphUK9BKEZbzX+tyD7Nn4TPe69Pc4XKM3pIGELWy+ZbpRCTtSEmCqKOrterVVw0JZdT3 QzTUfTVBC1RC4iiI3fswxwvUj/DTURxCTgfJK/SP0RBvfmL3kbnR9kAzQB6DR2MINdyzAby0lulbx FFBsUtjTKuqYw9PtRm8EhJnJUK6KK6Uj7nm+g1GrUP+csrqFUSIxg38iMNJDQV0mjN6rWSfIoVFra bAR1bskxErd9k2SqX5Dm73Wfh9h0PCRG14EyALTUDmJjqOWAyYH8RGNIHl0zHXx40Q8X+tEGnLx9C zpPyY/2g==; Received: from relay3-d.mail.gandi.net ([217.70.183.195]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pjNtN-008xCo-2a for linux-arm-kernel@lists.infradead.org; Mon, 03 Apr 2023 17:22:56 +0000 Received: (Authenticated sender: me@crly.cz) by mail.gandi.net (Postfix) with ESMTPSA id 047FD60005; Mon, 3 Apr 2023 17:22:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crly.cz; s=gm1; t=1680542570; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gwmDaBfdpINbLHryMxBxZ5HFeF6lCAutGgrkNzu6I1E=; b=e9huTgoxQ8SPhnRT9uaDRNRnOX+mnX1uaH/2QYx0+2vNC8gnou5O/G1XE+q5x9Vvv9Qwzj gYx8jf30hlF4TKwmYgKxQbR865P3RIE6TwHRC+U5Jb7N3E8UPTn9T3qFTPmInMkt+ePICj tiKJUgLLi7Ik0ETtxHa1nb9f6fhhaT4DI94BOziZpaHjvP1p9kIxzzIwYHjboDL0j0bYmA gDmFd6bUmzor499mcb1bKJqfnzdf9dQGvtkFLdANepJKmLxz32zS8x/49OY0sa4r6cknfq FmO0RQZNtoX8YIIpo5eVceaNOi03MviX//NAR9uQ7lTGH/f7nUDjX3n4wHgs8Q== Mime-Version: 1.0 Date: Mon, 03 Apr 2023 19:22:47 +0200 Message-Id: From: "Roman Beranek" To: "Frank Oltmanns" Cc: "Maxime Ripard" , "Chen-Yu Tsai" , "David Airlie" , "Daniel Vetter" , "Jernej Skrabec" , "Samuel Holland" , , , , Subject: Re: [PATCH 3/3] drm: sun4i: calculate proper DCLK rate for DSI X-Mailer: aerc 0.14.0 References: <20230331110245.43527-1-me@crly.cz> <20230331110245.43527-4-me@crly.cz> <87h6tya70h.fsf@oltmanns.dev> <87pm8lj709.fsf@oltmanns.dev> In-Reply-To: <87pm8lj709.fsf@oltmanns.dev> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230403_182254_095679_D236AE68 X-CRM114-Status: GOOD ( 11.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon Apr 3, 2023 at 5:08 PM CEST, Frank Oltmanns wrote: > > On 2023-04-03 at 15:52:36 +0200, "Roman Beranek" wrote: > > As little a change as setting .clock in the default mode of PP's panel > > to 73500 can fix it. Better yet, dropping pll-video0-2x from the set > > of acceptable parents for tcon0 fixes it universally. And that's what > > megi's kernel does, though the measure was introduced with a different > > rationale: > > > > For sake of completeness, the patch you referenced builds on this patch: > https://github.com/megous/linux/commit/45e0aa8d9e34 > > Are you saying that your other boards and panels work without these > patches? Yes, that was a bit of an oversight on my side as I wrote drivers for both panels already with the intention of them being used besides an HDMI output in mind, so I've deliberately picked a timing in each case such that the dotclock lines up nicely with pll-video0 at 297 MHz. All the best Roman Beranek _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel