[PATCH V3 2/2] drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver

Marek Vasut marex at denx.de
Thu May 6 15:46:43 UTC 2021


On 5/6/21 5:38 PM, Frieder Schrempf wrote:
[...]
> Works on i.MX8MM with SN65DSI84 and a single link LVDS display (1024x600) and from my perspective everything else also looks good. Thanks for your work!
> 
> I have two remarks:
> 
> 1. In my test I couldn't get it to work with four DSI lanes enabled (only with two) but I'm quite sure that the DSIM driver is to blame as everything on the bridge level looks good (also setting the DSI EQ register didn't help as you suggested, Marek).

I suspect there is indeed something with the DSIM going on, I'll keep 
you posted if I find something out.

> 2. When I set MEDIA_BUS_FMT_RGB888_1X7X4_SPWG in the panel driver I get distorted colors. I need to use MEDIA_BUS_FMT_RGB888_1X24 to make it work, but this is not valid for LVDS. Again I don't think this driver is to blame as I can't see where it does anything wrong, but my experience here is very limited so I still want to mention it.

Hmm, in that conversion supposed to happen in this bridge driver or 
should MXSFB handle the SPWG pixel format ? Or should the DSIM bridge do 
something about that ?


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