Unable to set power limit on 5.15

Brief summary of the problem:

I'm unable to set power limit via power1_cap when I try to do so through TTY (not starting any gui).

# echo 55000000 > cat /sys/class/drm/card0/device/hwmon/hwmon1/power1_cap

I'm getting write error: Not supported

Hardware description:

• CPU: Ryzen 5900HX
• GPU: RX 6800M

System information:

• Distro name and Version: Alpine 3.15
• Kernel version: 5.15.3+
• Custom kernel: -

How to reproduce the issue:

1. Boot to tty
2. Try to set power limit.

However

If I start a wayland compositor withing 5 seconds (same error happens if I do it later) after login prompt comes up, I can manipulate the parameter as I wish, it seems to work perfectly fine from terminal emulator.

dmesg

From TTY (unable to set power): https://pastebin.com/aRfQuyRR

From Wayland compositor, less than 5 seconds login delay (power sets as intended): https://pastebin.com/UgEvarYj

From Wayland compositor, more than 5 seconds login delay (unable to set power): https://pastebin.com/b8J5tZAF