Replace the legacy register access by regmap API.
Signed-off-by: NYannick Fertre <yannick.fertre@foss.st.com>
Acked-by: NPhilippe Cornu <philippe.cornu@foss.st.com>
Reviewed-by: NPhilippe Cornu <philippe.cornu@foss.st.com>
Reviewed-by: NRaphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Tested-by: NRaphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: NPhilippe Cornu <philippe.cornu@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215214738.19946-1-yannick.fertre@foss.st.com