On Fri, Mar 12, 2021 at 2:57 PM Enrico Weigelt, metux IT consult <lkml@xxxxxxxxx> wrote: > On 02.03.21 06:30, Drew Fustini wrote: > > Hi folks, > > > Add "pinmux-select" to debugfs which will activate a pin function for a > > given pin group: > > > > echo "<group-name function-name>" > pinmux-select > > > > The write operation pinmux_select() handles this by checking that the > > names map to valid selectors and then calling ops->set_mux(). > > I've already been playing with similar idea, but for external muxes. > For example, some boards have multiple SIM slots that can be switched > via some gpio pin. > > Not sure whether traditional pinmux would be a good match for that. What is wrong with the subsystem drivers/mux? It's exactly for this usecase I think. Peter Rosin already wrote a GPIO-controlled mux driver too. Yours, Linus Walleij
