Updating from 1.6.3 to 2.1.0 - getting validated POST data

[eluser]potion[/eluser]
I've been away from CI for a while, apologies if this is obvious.

I'm updating a site from CI 1.6.3 to 2.1.0

Getting POST data using the old validation class used something like:

Code:

$my_form_field = $this->validation->my_form_field;

With the replacement form_validation class is it sufficient to simply use:

Code:

$my_form_field = $this->input->post('my_form_field');