Hi Cai, On Fri, Sep 17, 2021 at 11:26 PM Cai Huoqing <caihuoqing@xxxxxxxxx> wrote: > > I am not sure why you need the && OF, as we have a "select PINCTRL_IMX", > > that already depends on OF. > No, it's just an invalid dependency. PINCTRL_IMX can be selected without OF I don't understand your statement. >From drivers/pinctrl/freescale/Kconfig: config PINCTRL_IMX tristate depends on OF So PINCTRL_IMX depends on OF, which means that it can only be selected when CONFIG_OF=y.