Regression in split ARM MMIO timer driver

[Jack Matthews]

Hello,

I am working on mainlining an old chip, Qualcomm's MDM9625 modem. 
I had previously booted 6.17-rc3 before putting this project to the side, but when I restarted work on 7.0 I was unable to boot. 
I have bisected this to commit 0f67b56d84b4c49adfd61f19f81f84ec613ab51a (https://lore.kernel.org/all/20250814154622.10193-4-maz@kernel.org/) and reverting this commit makes the device boot successfully. Unfortunately I do not have access to low level debugging such as UART so I have not been able to pinpoint exactly what is missing.
My changes for this chip are all available here in case it is an issue of my own doing: https://github.com/jackmthws/linux/commits/mdm9625-latest/
I apologize if I this isn't the proper way to submit a regression report, this is my first time doing so.

Thanks, Jack