Re: [PATCH v2 4/4] drm: panel: Add Jadard JD9365DA-H3 DSI panel

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Hi Dave,

On Thu, 8 Sept 2022 at 20:33, Dave Stevenson
<dave.stevenson@xxxxxxxxxxxxxxx> wrote:
>
> Hi Jagan
>
> On Thu, 8 Sept 2022 at 15:00, Jagan Teki <jagan@xxxxxxxxxx> wrote:
> >
> > Jadard JD9365DA-H3 is WUXGA MIPI DSI panel and it support TFT
> > dot matrix LCD with 800RGBx1280 dots at maximum.

Look like I wrapped the wrong text, maybe this copy came from vendor
code. Yes, the datasheet mentioned this as WXGA resolution.

Thanks for this. I will correct it.

>
> Sorry, I'm confused by this commit text.
>
> WUXGA is normally defined as 1920x1200.
> So the panel is 1920x1200, but it supports a max of 800x1280 pixels?
> What do the other pixels do then?
>
> Google implies that Jadard JD9365DA-H3 is a driver IC, not a panel. So
> is this driver for all JD9365DA-H3 based panels, not just one panel?
> Having a compatible of "chongzhou,cz101b4001" implies it.
> (Thinking about it, I have a JD9365Z based DSI panel on my desk, but
> the JD9365Z is made by Fitipower and it supports a max resolution of
> 720x1280. Those trailing letters are obviously very significant on
> this range)

Yes, chongzhou,cz101b4001 panel which used JD9365DA-H3 controller IC.
Though JD9365DA-H3 itself is not a direct panel, we usually denote
controller IC as panel driver as these are part of Linux DRM panel and
as its own compatible "jadard,jd9365da-h3"

Thanks,
Jagan.



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