On Sat, Aug 21, 2021 at 1:27 AM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > > The UCB1400 implements a GPIO driver so it needs to include the > <linux/gpio/driver.h> header, not the legacy <linux/gpio.h> header. > Compile tested on pxa_defconfig. ... > #include <linux/module.h> > #include <linux/ucb1400.h> > +#include <linux/gpio/driver.h> Can you add it in an order? ... > --- a/include/linux/ucb1400.h > +++ b/include/linux/ucb1400.h > @@ -23,7 +23,7 @@ > #include <sound/ac97_codec.h> > #include <linux/mutex.h> > #include <linux/platform_device.h> > -#include <linux/gpio.h> > +#include <linux/gpio/driver.h> Ditto (to some extent) and the question here, do you still need it after adding to the C file? -- With Best Regards, Andy Shevchenko