linux-kernel - Re: [PATCH 09/12] dt-bindings: panel: Add Bananapi S070WV20-CT16 MIPI-DSI panel bindings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAGb2v64QEhy1J05L9W0_uWhmrky8wD+vg3v5wA7Yd3_U-DdpKg@mail.gmail.com>
Date:   Mon, 22 Oct 2018 11:22:26 +0100
From:   Chen-Yu Tsai <wens@...e.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Jagan Teki <jagan@...rulasolutions.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Icenowy Zheng <icenowy@...c.io>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        linux-clk <linux-clk@...r.kernel.org>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH 09/12] dt-bindings: panel: Add Bananapi S070WV20-CT16
 MIPI-DSI panel bindings

Hi Rob,

On Mon, Oct 15, 2018 at 7:24 PM Rob Herring <robh@...nel.org> wrote:
>
> On Thu, 27 Sep 2018 17:18:47 +0530, Jagan Teki wrote:
> > Bananapi S070WV20-CT16 is 800x480, 4-lane MIPI-DSI panel, the
> > same panel PCB comes with parallel RBG which is supported via
> > panel-simple with "bananapi,s070wv20-ct16" compatible.
> >
> > Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> > ---
> >  .../panel/bananapi,s070wv20-ct16-dsi.txt      | 21 +++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16-dsi.txt
> >
>
> Reviewed-by: Rob Herring <robh@...nel.org>

This "panel" is actually an RGB panel with a MIPI-DSI-to-RGB bridge
tacked on. On one particular revision of this module, one can also
directly use the RGB interface.

Would it be better to model this as bridge+panel? We already have
a binding for the RGB version [1]. This would make it harder to
make a driver though, as there is no publicly available datasheet
for the bridge chip, so it's likely that part of the init sequence
would have to be hard-coded.

Thanks
ChenYu

[1] Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.txt