6.5-rc1 breakage in samsung-dsim

[Tim Harvey]

Greetings,

I've noticed a regression in 6.5-rc1 that I'm having trouble bisecting
between 6.4 with regards to imx8mm MIPI DSI.

I'm testing on an imx8mm-venice-gw72xx-0x with the following display:
 - Powertip PH800480T013-IDF02 compatible panel
 - Toshiba TC358762 compatible DSI to DBI bridge
 - ATTINY based regulator used for backlight controller and panel enable

I'm using a dt overlay to support this [1] which works on 6.4 but on
6.5-rc1 I get the following error:
[    6.110585] samsung-dsim 32e60000.dsi: xfer timed out: 29 06 00 00
64 01 05 00 00 00
[    6.326588] tc358762 32e60000.dsi.0: error initializing bridge (-110)

I'm trying to bisect this for some reason. Does anyone have any idea
what may be causing this or how I can debug it?

Best regards,

Tim
[1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20230711221124.2127186-1-tharvey@gateworks.com/