Does this patch help? https://patchwork.freedesktop.org/patch/259364/ Can you bisect which firmware commit (https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git) caused the regression and then narrow down which firmware updated causes the issue? I'd start with the smc firmware and they try the rlc, followed by the CP (mec, me, pfp, ce).