linux-kernel - Re: [RFC PATCH v3 4/7] drm/panel: nv3052c: Add Fascontek FS035VG158 LCD display

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Date:   Mon, 25 Sep 2023 19:21:25 +1000
From:   John Watts <contact@...kia.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     dri-devel@...ts.freedesktop.org,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Chris Morgan <macromorgan@...mail.com>,
        Jagan Teki <jagan@...eble.ai>,
        Christophe Branchereau <cbranchereau@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v3 4/7] drm/panel: nv3052c: Add Fascontek FS035VG158
 LCD display

On Mon, Sep 25, 2023 at 11:12:29AM +0200, Paul Cercueil wrote:
> Hi John,
> 
> Just to be sure, your fascontek panel won't work with the
> initialization sequence of the leadtek panel?

Yes, it does work.

> Did you try with the existing display modes? If you can afford the 24
> MHz clock (and if it works with your panel) it will give you a perfect
> 60.0 Hz refresh rate, while this mode above will give you above 59.93
> Hz (which is not that bad though).

No I didn't test with this.

In general I don't feel comfortable submitting code that strays from what is
recommended by the manufacturer.

> Otherwise LGTM.
> 
> Cheers,
> -Paul

John.