On Thu, Feb 20, 2020 at 2:01 PM Geert Uytterhoeven <geert+renesas@xxxxxxxxx> wrote: > As GPIO hogs are configured at GPIO controller initialization time, > adding/removing GPIO hogs in DT overlays does not work. > > Add support for GPIO hogs described in DT overlays by registering an OF > reconfiguration notifier, to handle the addition and removal of GPIO hog > subnodes to/from a GPIO controller device node. > > Note that when a GPIO hog device node is being removed, its "gpios" > properties is no longer available, so we have to keep track of which > node a hog belongs to, which is done by adding a pointer to the hog's > device node to struct gpio_desc. > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > --- > v2: > - Drop RFC state, > - Document that modifying existing gpio-hog nodes is not supported. Clean and well separated code, patch applied with Frank's review tag! Yours, Linus Walleij
