Hi,
Thanks Doug for adding me
On 02-11-20, 08:37, Doug Anderson wrote:
On Thu, Oct 29, 2020 at 06:17:34PM -0700, Stephen Boyd wrote:
Any chance we can convince you to prepare this bridge driver for use in a chained bridge setup where the connector is created by the display driver and uses drm_bridge_funcs?
First step wuld be to introduce the use of a panel_bridge. Then add get_edid to drm_bridge_funcs and maybe more helpers.
Then natural final step would be to move connector creation to the display driver - see how other uses drm_bridge_connector_init() to do so
- it is relatively simple.
Should be doable - and reach out if you need some help.
Yes it is and doable and you find this at [1], would need a rebase though.
At some point I think Vinod tried to prepare a patch for this and I tried it, but it didn't just work. I spent an hour or so poking at it and I couldn't quite figure out why and I couldn't find enough other examples to compare against to see what was wrong... That was a few months ago, though. Maybe things are in a better shape now?
It worked fine for me on Rb3 and db410c where we had HDMI connector. I don't have a panel device to test and Bjorn tried to help out with a bit of testing. This didn't work on the laptop, that is why I haven't posted it yet.
This has conversion of msm driver and bridge drivers lt9611, adv7511 and ti-sn65dsi86.
[1]: https://git.linaro.org/people/vinod.koul/kernel.git/log/?h=wip/msm_bridges_n...
Thanks