pincontrol driver issue "unsupported configuration parameter '15'"

sateesh1

I am trying to migrate kernel version 5.10.41 to 6.1. Currently we are using pincontrol driver which is not an opensource. We got from vendor specific to our target machine. I tried to add driver same driver source code from 5.10 kernel to 6.1. While booting time had observed some issue related to pin control driver.

Here below I have mentioned log. here target name replaced by my actual target machine name.
pinctrl-target 4f0016000.pinctrl: unsupported configuration parameter '15'
[ 0.284454] pinctrl-target 4f0016000.pinctrl: unsupported configuration parameter '15'
[ 0.285291] pinctrl-target 4f0016000.pinctrl: unsupported configuration parameter '15'
[ 0.285356] pinctrl-target 4f0016000.pinctrl: unsupported configuration parameter '15'
[ 0.286191] pinctrl-target 4f0016000.pinctrl: unsupported configuration parameter '15'
[ 0.286256] pinctrl-target 4f0016000.pinctrl: unsupported configuration parameter '15'

Can anybody suggested me what could be the reason? whom I need to consult to fix this problem.