Hi Jacky, On Tue, Jun 1, 2021 at 3:13 AM Jacky Bai <ping.bai@xxxxxxx> wrote: > + pinctrl_lpuart5: lpuart5grp { > + fsl,pins = > + <0x0138 0x08F0 0x4 0x3 0x3>, > + <0x013C 0x08EC 0x4 0x3 0x3>; This is hard to read. Can't we use the pinctrl defines here instead?