load ec_sys kernel module at start

I have created
/etc/modprobe.d/ec_sys.conf
options ec_sys write_support=1

/etc/dracut.conf.d/ec_sys.conf
install_items+=" /etc/modprobe.d/ec_sys.conf "

Then ran
rpm-ostree initramfs --enable

and rebooted. Still not loading when using lsmod | grep ec_sys

I also tried rpm-ostree kargs --append-if-missing="ec_sys.write_support=1" with no results.

Do I need a different kernel?
What logs can I check ?
has anyone got this to work?
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