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=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 69EA8C433DF for ; Sun, 2 Aug 2020 23:38:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 479802070A for ; Sun, 2 Aug 2020 23:38:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596411512; bh=AbG/PXAqhgPVuIkQmoLq+95PIZjq2tZT6mMRiYuDpWA=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=oke84lZYu3bIXKCwaoxhC3Sc0BG0Aa+tv3TNpgwvSt7o3rYUyhJWBolqZhtnKXFlf 7epJ6l5I4sjlLG+rsYIUEQ/fsjzMYXJn5k84guab5zJLl3xdSXpHBZkyMFEmRqIw0Q 98JZJWCB4hJytW//K2z37P3GklMQgtSWFzliztEg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727812AbgHBXia (ORCPT ); Sun, 2 Aug 2020 19:38:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:47182 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725925AbgHBXia (ORCPT ); Sun, 2 Aug 2020 19:38:30 -0400 Received: from mail-ed1-f44.google.com (mail-ed1-f44.google.com [209.85.208.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1A248207FB for ; Sun, 2 Aug 2020 23:38:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596411509; bh=AbG/PXAqhgPVuIkQmoLq+95PIZjq2tZT6mMRiYuDpWA=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=EanpZdFeb8rYupCfIPn6Fs/UavWempboc9Wa9k0ebsXRsV2H9jeABwmXiYO6CnaYH gyz8NtTLsPx94fS5ljo9Z1mH1kGafsh3r2+NXKbLtPuckKFideuy0iXvdqQ3tHuz8f jsOo28LALgxXoVrxFp4UU+SlG+lfPQ3VJHVWCpDQ= Received: by mail-ed1-f44.google.com with SMTP id i6so348171edy.5 for ; Sun, 02 Aug 2020 16:38:29 -0700 (PDT) X-Gm-Message-State: AOAM533uRrOMIm5R4jVRmME3OAT8iRvTWYWGtAxU20mvoenlDnlvSC/R EcbBt9hxgONo/7mOq7mEVVC+aXbhOhbEKtuL+A== X-Google-Smtp-Source: ABdhPJyFe20LlQFIDpRDCTfuWW+wEB+O/g/9f02O9oqUGPkMHjgGv4vDDhGCFULSLVE//K2Ox0J9Smx9kWnqwXl3DME= X-Received: by 2002:aa7:c606:: with SMTP id h6mr713213edq.288.1596411507931; Sun, 02 Aug 2020 16:38:27 -0700 (PDT) MIME-Version: 1.0 References: <20200728111800.77641-1-frank-w@public-files.de> <20200728111800.77641-3-frank-w@public-files.de> <6F0FD8AA-A582-45FC-BE1A-06B3812B3DEF@public-files.de> In-Reply-To: <6F0FD8AA-A582-45FC-BE1A-06B3812B3DEF@public-files.de> From: Chun-Kuang Hu Date: Mon, 3 Aug 2020 07:38:15 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 2/5] drm/mediatek: fix boot up for 720 and 480 but 1080 To: Frank Wunderlich Cc: "moderated list:ARM/Mediatek SoC support" , Chun-Kuang Hu , Philipp Zabel , chunhui dai , David Airlie , linux-kernel , DRI Development , Daniel Vetter , Matthias Brugger , Linux ARM Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Frank: Frank Wunderlich =E6=96=BC 2020=E5=B9=B48=E6=9C= =882=E6=97=A5 =E9=80=B1=E6=97=A5 =E4=B8=8B=E5=8D=8812:44=E5=AF=AB=E9=81=93= =EF=BC=9A > > Hi, > > Am 2. August 2020 02:08:44 MESZ schrieb Chun-Kuang Hu : > >Hi, Frank: > >> - disable tmds on phy on mt2701 > >> - support other resolutions like 1280x1024 > > > >If this patch does two things, it should be broken into two patches. > As far as i see,it only disable tmds and so fix specific resolutions like= the the one below.some other (like 1080p) does not have this Problem. OK, this is one thing, "disable tmds on phy on mt2701 to support other resolutions like 1280x1024" > > > I think every pll is default off, so you should turn on pll rather > > than disable tmds > > Is disabling tmds wrong here? Which pll is needed here? What does tmds? I= got only the Patches for testing.... I don't know how does this pll and tmds work. I think you and me are both not familiar with this hdmi phy. I agree this modification could fix some problem, but does this patch have side effect which trigger another problem? I need some reasonable description so I could have confidence on this patch. tmds is a function in mt2701 but you disable it. This mean you disable some function of this hardware. Why mt2701 does not need it? Regards, Chun-Kuang. > > >> without this Patch i see flickering on my TFT (1280x1024), > >> so i guess clock is wrong. > > regards Frank 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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 2B8F2C433DF for ; Sun, 2 Aug 2020 23:38:51 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 02A1F2070A for ; Sun, 2 Aug 2020 23:38:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="b0DDcpRn"; 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Sun, 02 Aug 2020 16:38:29 -0700 (PDT) X-Gm-Message-State: AOAM531BpUcfw+pTRtfcDo64jISVhtgwwC9gy6I5ygn/2LPDAyesvCiB /nTKm3ijgAYivSyLngUlfyYAhjZES6nm4Zfl5g== X-Google-Smtp-Source: ABdhPJyFe20LlQFIDpRDCTfuWW+wEB+O/g/9f02O9oqUGPkMHjgGv4vDDhGCFULSLVE//K2Ox0J9Smx9kWnqwXl3DME= X-Received: by 2002:aa7:c606:: with SMTP id h6mr713213edq.288.1596411507931; Sun, 02 Aug 2020 16:38:27 -0700 (PDT) MIME-Version: 1.0 References: <20200728111800.77641-1-frank-w@public-files.de> <20200728111800.77641-3-frank-w@public-files.de> <6F0FD8AA-A582-45FC-BE1A-06B3812B3DEF@public-files.de> In-Reply-To: <6F0FD8AA-A582-45FC-BE1A-06B3812B3DEF@public-files.de> From: Chun-Kuang Hu Date: Mon, 3 Aug 2020 07:38:15 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 2/5] drm/mediatek: fix boot up for 720 and 480 but 1080 To: Frank Wunderlich X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200802_193830_708023_EB89AC2C X-CRM114-Status: GOOD ( 18.59 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chun-Kuang Hu , Daniel Vetter , chunhui dai , David Airlie , linux-kernel , DRI Development , "moderated list:ARM/Mediatek SoC support" , Philipp Zabel , Matthias Brugger , Linux ARM Content-Type: text/plain; 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