How to change extperiph2 max_rate?

Hello,
I would like to know how to increase extperiph2 frequency to 37.125MHz.
According to /sys/kernel/debug/bpmp/debug/clk/extperiph2/max_rate, maximum frequency of extperiph2 is 24000000 Hz. Why is this the maximum value, and can it be change?

The max clk is decided by the parent clk.
check possible parents
and change them to see different max rate.
Also, the max rate is throttled based on board power profile.

root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph1# cat parent
pllp_out0
root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph1# cd …/extperiph2
root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph2# cat parent
pllp_out0
root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph2# cat rate
24000000
root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph2# cat max_rate
24000000
root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph2# cat …/extperiph1/rate
37090909
root@dm-desktop:/sys/kernel/debug/bpmp/debug/clk/extperiph2# cat …/extperiph1/max_rate
37090909

Extperiph1 and extperiph2 have the same parent pllp_out0. But extperiph2 max rate is different from extperiph1.
Where is board power profile? Can I modify it?

We use Xavier NX with Jetpack4.6.