On Thu, Nov 21, 2019 at 07:47:37PM +0800, Yama Modo wrote: > Dear Linus Walleij, > > I want to backport commit ff2b13592299 "gpio: make the gpiochip a real > device" to linux 4.4.y. Could you please review the following patch? I > will improve this later if something need to take care. Thanks! Why do you want to do that? What does it "fix" and who needs it for the old 4.4.y kernel tree? thanks, greg k-h