linux-kernel - Re: [PATCH v2 05/10] video: add MIPI DSI host controller bridge

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Message-ID: <20180302190248.GA156080@rodete-desktop-imager.corp.google.com>
Date:   Fri, 2 Mar 2018 11:02:49 -0800
From:   Brian Norris <briannorris@...omium.org>
To:     yannick fertre <yannick.fertre@...com>
Cc:     Vikas Manocha <vikas.manocha@...com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Philippe Cornu <philippe.cornu@...com>,
        Patrice Chotard <patrice.chotard@...com>,
        Patrick DELAUNAY <patrick.delaunay@...com>,
        Christophe KERELLO <christophe.kerello@...com>,
        Archit Taneja <architt@...eaurora.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Bhumika Goyal <bhumirks@...il.com>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        Albert Aribaud <albert.u.boot@...baud.net>,
        Simon Glass <sjg@...omium.org>,
        Anatolij Gustschin <agust@...x.de>,
        Thierry Reding <thierry.reding@...il.com>,
        u-boot@...ts.denx.de, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 05/10] video: add MIPI DSI host controller bridge

On Fri, Mar 02, 2018 at 10:57:59AM -0800, Brian Norris wrote:
> Hi,
> 
> On Fri, Mar 02, 2018 at 04:44:06PM +0100, yannick fertre wrote:
> > Add a Synopsys Designware MIPI DSI host bridge driver, based on the
> > Rockchip version from rockchip/dw-mipi-dsi.c with phy & bridge APIs.
> 
> How many times are we going to allow copy-and-pasting the same driver?
> Last time we wanted to modify the Rockchip driver, we were told
> "consolidate", because ST had already forked our driver. This nearly
> halted all progress. I'm going to be real disappointed if we see another
> fork get merged.
> 
> (IOW, I would say "over my dead body," but I have no power here.)
> 
> And why can't you use DRM?

...wait a second...this looks like it's a u-boot driver. There's a
surprising amount of similarity between U-boot and Linux drivers (no
coincidence I'm sure), including <linux/...> headers.

Since when do U-Boot patches go to LKML and dri-devel?

Anyway, I'll try my best to ignore this series.

Brian