[PATCH] dt-bindings: display: bridge: ti, sn65dsi83: add burst-mode-disabled

[Stefano Radaelli]

Hi Marek,

Actually this property is specific also to DSI8x bridge, as you can see
from the screenshot below taken from official datasheet:

[image: image.png]

And it's the sn65dsi8x driver that tells MIPI driver which flags to use
during attachment.
So, for example, this bridge can work also for MIPI interfaces which don't
support burst-mode.
Also, as a value-added benefit, I found non-burst mode better for some
1920x1200 LVDS panels I'm testing (Of course with more energy consumption).
That's why I though it could be useful have this option, since SN65DSI8x
supports both modes.

Stefano

Il giorno mar 9 lug 2024 alle ore 16:16 Marek Vasut <marex at denx.de> ha
scritto:

> On 7/9/24 2:45 PM, Stefano Radaelli wrote:
> > Hello everyone,
>
> Hi,
>
> > Thank you a lot for your prompt feedbacks.
> > I'm really sorry for all the mistakes, it is the first time that I try to
> > submit a patch and i thought I followed the guideline but clearly that
> was
> > not the case.
> >
> >   @Marek Vasut <marex at denx.de> About your question to why disabling
> > burst-mode:
> > - I agree with you that Burst Mode is the preferred way to send data. For
> > that reason I created the new flag in a way that, if not used in dts,
> burst
> > mode remains active by default.
> >    However, I decide to introduced this property because I have noticed
> that
> > some dual-channel panels work better in non-burst mode (even if less
> > efficient), and since the sn65dsi84 datasheet allows this setting, I
> > thought to give this opportunity to users.
> >    What do you think about it?
>
> Are there any further details, which panels behave this way ? Does your
> DSI host generate correct HS clock, ones which the DSI84 expects to
> receive on the DSI side ?
>
> Such link mode properties would have to be generic properties placed in
> some dsi-client.yaml file in any case, such properties are not specific
> to this DSI8x bridge.
>
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