Good day everyone,
I am facing an issue with porting our project to the new kernel (v5.15.79). We are using CPU type AM33xx (specificaly AM3352BZCED60).
It looks like there are some issues when probing timers. Or at least, I am not sure what the severity of the error below is:
[ 0.753569] ti-sysc: probe of 44e31000.target-module failed with error -16
[ 0.794004] ti-sysc: probe of 48040000.target-module failed with error -16
Based on the am33xx-l4.dtsi, it looks that 44e31000 stands for timer1 which is a sysc-omap2-timer and 48040000 stands for timer2 (a sysc-omap4-timer)
I already checked the latest kernel and the code is exactly the same as in v5.15.79.
Both timers have in device tree flags ti,no-reset-on-init and ti,no-idle.
https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/am33xx.dtsi#L690
To me, the probing code looks like it is reporting an error in case you have sysc-omap2-timer / sysc-omap4-timer in combination with these flags.
https://github.com/torvalds/linux/blob/master/drivers/bus/ti-sysc.c#L3233
So is this error output expected? What could be the consequences of this error?
