[PATCH v5 1/2] drm/bridge: Add Cadence DSI driver

Tomi Valkeinen tomi.valkeinen at ti.com
Mon Jan 29 14:29:21 UTC 2018


On 18/01/18 15:43, Boris Brezillon wrote:
> Add a driver for Cadence DPI -> DSI bridge.
> 
> This driver only support a subset of Cadence DSI bridge capabilities.
> 
> Here is a non-exhaustive list of missing features:
>  * burst mode
>  * DPHY init/configuration steps
>  * support for additional input interfaces (SDI input)

I think it would be good to have a list of features that are supported
and tested, and perhaps a word about the development setup you have.

One thing that slightly worries me are the DPHY and input pixel clock
rates. Now the code expects that those values match perfectly, which is
not the case in real life. So what's the accepted difference, and is
there something in the registers to program differently depending on the
diff?

Another thing is that the mode->crtc_clock is in kHz, I wonder if that
rounding can cause miscalculations in the above code.

 Tomi

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