On Tue, 19 Dec 2023 at 14:14, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:

On Tue, Dec 19, 2023 at 01:54:59PM +0530, Amit Pundir wrote:

...

Hi Greg,

The following lt9611uxc fixes in v5.15.139 broke display on RB5 devboard.

drm/bridge: lt9611uxc: fix the race in the error path drm/bridge: lt9611uxc: Register and attach our DSI device at probe drm/bridge: lt9611uxc: Switch to devm MIPI-DSI helpers

Reverting them (git revert -s d0d01bb4a560 29aba28ea195 f53a04579328 #5.15 SHA Ids) fix the following errors on RB5 and get the display working again on v5.15.143.

lt9611uxc 5-002b: LT9611 revision: 0x17.04.93 lt9611uxc 5-002b: LT9611 version: 0x43 lt9611uxc 5-002b: failed to find dsi host msm ae00000.mdss: bound ae01000.mdp (ops dpu_ops [msm]) msm_dsi_manager_register: failed to register mipi dsi host for DSI 0: -517

Great, can you send patches that do the reverts along with the reasoning why the reverts are needed so that we can queue them up?

On it.

thanks,

greg k-h