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=-21.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 E73AEC433E6 for ; Sun, 7 Mar 2021 00:31:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B321C650AD for ; Sun, 7 Mar 2021 00:31:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230046AbhCGAau (ORCPT ); Sat, 6 Mar 2021 19:30:50 -0500 Received: from mail.kernel.org ([198.145.29.99]:56552 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230007AbhCGAaZ (ORCPT ); Sat, 6 Mar 2021 19:30:25 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 354DF64F09; Sun, 7 Mar 2021 00:30:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615077025; bh=uJwXubSaOLTt7He4mvFNkPoPWLDyc08NNbEFTffP5l0=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=j4MbRNNUmEswJ2GkrZPTMQ6/C/vz7TUhGrgd2hQkHC16WNbiHBqF4EieYFrMdwQK6 R3BK+U2hz0I9Bux1sOMv/s0TdCl6tpozUKhjwwzcRHGZYs/vJ1IHB9a7C4fVvMab2+ yQNHSvkbhsn91uRi4LStWTdXjnR4E1NSH8RdRXlo5Ey7kFY8eBfJr+CGiVvGuPkiPy 5eksEqvOcmuBSZGPc1ZkBLqGdAxuNhNG8EX1U+l/aRW0BZ8S27FRYxbLZeqrLU9wIY 6+sKjBha8ADITStjwB0GyfZ0yOp9vpaGKzJmGvS0IHfIr7k+01DeRK0E/7uk6IHaYv JeI5ItiHK8p3A== Received: by mail-ej1-f42.google.com with SMTP id w1so12365963ejf.11; Sat, 06 Mar 2021 16:30:25 -0800 (PST) X-Gm-Message-State: AOAM532YqZb1V8SQ2Ucn+EagenkwfDnOFcsujYLIbZGidVTeTPS+SPzQ tT+9dRdShhBsFyFdrxFRPNN/N3yUXXMnyzAhEg== X-Google-Smtp-Source: ABdhPJzkevcLiDsincX3P/xDWHQn213RalKdvB/BL2ujct31lwjYiYLZ5AyLmSo+zrQMgDe32l0l5PXBMIfb1+LDPRE= X-Received: by 2002:a17:906:400b:: with SMTP id v11mr8684303ejj.194.1615077023864; Sat, 06 Mar 2021 16:30:23 -0800 (PST) MIME-Version: 1.0 References: <20210201033603.12616-1-jitao.shi@mediatek.com> <20210201033603.12616-3-jitao.shi@mediatek.com> In-Reply-To: <20210201033603.12616-3-jitao.shi@mediatek.com> From: Chun-Kuang Hu Date: Sun, 7 Mar 2021 08:30:12 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp To: Jitao Shi Cc: Rob Herring , Mark Rutland , Matthias Brugger , Daniel Vetter , David Airlie , DRI Development , linux-kernel , DTML , srv_heupstream , huijuan.xie@mediatek.com, stonea168@163.com, cawa.cheng@mediatek.com, "moderated list:ARM/Mediatek SoC support" , yingjoe.chen@mediatek.com, eddie.huang@mediatek.com, Linux ARM Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Jitao: Jitao Shi =E6=96=BC 2021=E5=B9=B42=E6=9C=881=E6=97= =A5 =E9=80=B1=E4=B8=80 =E4=B8=8A=E5=8D=8811:36=E5=AF=AB=E9=81=93=EF=BC=9A > > Enabling EoTp will make the line time larger, so the hfp and > hbp should be reduced to keep line time. Applied to mediatek-drm-next [1], thanks. [1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/= log/?h=3Dmediatek-drm-next Regards, Chun-Kuang. > > Signed-off-by: Jitao Shi > --- > drivers/gpu/drm/mediatek/mtk_dsi.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediate= k/mtk_dsi.c > index 2bc46f2350f1..8c70ec39bfe1 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c > @@ -481,6 +481,7 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi = *dsi) > timing->da_hs_zero + timing->da_hs_exit + 3; > > delta =3D dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST ? 18 : 12; > + delta +=3D dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET ? 2 : 0; > > horizontal_frontporch_byte =3D vm->hfront_porch * dsi_tmp_buf_bpp= ; > horizontal_front_back_byte =3D horizontal_frontporch_byte + horiz= ontal_backporch_byte; > -- > 2.12.5 > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 CB4D9C433DB for ; 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