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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 D0E56C48BDF for ; Thu, 24 Jun 2021 08:30:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5A50613CE for ; Thu, 24 Jun 2021 08:30:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231936AbhFXIdP (ORCPT ); Thu, 24 Jun 2021 04:33:15 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:57473 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231835AbhFXIdP (ORCPT ); Thu, 24 Jun 2021 04:33:15 -0400 Received: from mail-ej1-f70.google.com ([209.85.218.70]) by youngberry.canonical.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1lwKlD-0005IZ-DT for devicetree@vger.kernel.org; Thu, 24 Jun 2021 08:30:55 +0000 Received: by mail-ej1-f70.google.com with SMTP id w13-20020a170906384db02903d9ad6b26d8so1743372ejc.0 for ; Thu, 24 Jun 2021 01:30:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=FWf1/8cps0f2orI5AbiDd3FTEBu65FvivubU0HnKemc=; b=SSzC2HchDBEQixh9QZReACnJ1eebAh3v2P9IrQ5FxLH59uyeU6RpIBn0hSGOmOPIu2 NWrTCYpGHLMLxxpMokklUXx3vg4OJYnRU7pNZ2HxzjOuZuZyjRBWtupe64LX0mnt1b5e 81UTV9yV53N+qiZcXdGNCpep/OknvG2GTnHJvo+TA30wH3XAD4VmXwj4pK/h0pxIzNYB y3RZf2fVJFbnE13KagjeJKDrOecG/LIK0TdMf0Y8Ls/mLEy/7gM3LpstvAw+IGA+TaSu xucZoK1t+6sFbAkJYuGI5M2+YcmIH4ZbO/9mopobrIWoDR7R1dCHrZVgsF2fyFN/tBw+ rVyQ== X-Gm-Message-State: AOAM530oyiDCgeD/u/inv7w6Cto9KGmq6MGbHqrrIuUODz4O7+o9EMul XTOLM5pubRC6MMStFPHGOv00eoVl+dr6LIykcp3hvuUS8RDdGzscAPq6iY3q+MBXaTIspQLa6rU zrGUdfI0TIV88P9/HO+dWN0+xy7NslLio4Q91E6E= X-Received: by 2002:a17:906:dbd5:: with SMTP id yc21mr4064950ejb.233.1624523455172; Thu, 24 Jun 2021 01:30:55 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyE9NG70Q0R7WlldJgiju8y4R6tNhr+XdnWHXcuF262S4ipiZ1rkQiFP2aNPfY2SEkDu6zFjg== X-Received: by 2002:a17:906:dbd5:: with SMTP id yc21mr4064931ejb.233.1624523455018; Thu, 24 Jun 2021 01:30:55 -0700 (PDT) Received: from [192.168.1.115] (xdsl-188-155-177-222.adslplus.ch. [188.155.177.222]) by smtp.gmail.com with ESMTPSA id a3sm1417424edu.61.2021.06.24.01.30.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Jun 2021 01:30:54 -0700 (PDT) Subject: Re: [RFC PATCH 2/9] drm: bridge: Add Samsung SEC MIPI DSIM bridge driver To: Fabio Estevam , Laurent Pinchart , Michael Tretter Cc: Jagan Teki , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Peng Fan , Francis Laniel , Matteo Lisi , Neil Armstrong , linux-amarula , Tomasz Figa , linux-kernel , Robert Foss , Andrzej Hajda , DRI mailing list , Milco Pratesi , Anthony Brandon , linux-phy@lists.infradead.org, Fancy Fang , Shawn Guo , Sascha Hauer , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" , NXP Linux Team References: <20210621072424.111733-1-jagan@amarulasolutions.com> <20210621072424.111733-3-jagan@amarulasolutions.com> From: Krzysztof Kozlowski Message-ID: <2decfea3-3659-2a3b-7706-326c97f57f8e@canonical.com> Date: Thu, 24 Jun 2021 10:30:53 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 24/06/2021 04:48, Fabio Estevam wrote: > Hi Jagan/Laurent, > > On Wed, Jun 23, 2021 at 7:23 PM Laurent Pinchart > wrote: > >> Looking at the register set, it seems to match the Exynos 5433, >> supported by drivers/gpu/drm/exynos/exynos_drm_dsi.c. Can we leverage >> that driver instead of adding a new one for the same IP core ? > > Yes. there was an attempt from Michael in this direction: > https://patchwork.kernel.org/project/dri-devel/cover/20200911135413.3654800-1-m.tretter@pengutronix.de/ That's the proper direction (maybe as Marek suggested - sharing common code like for Analogix DP), not duplicating a driver. Best regards, Krzysztof