* Linus Walleij <linus.walleij@xxxxxxxxxx> [170111 07:34]: > On Tue, Jan 10, 2017 at 8:19 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > > Below is an experimental fix to intorduce pinctrl_start() that I've > > tested with pinctrl-single. Then we should probably make all pin controller > > drivers call pinctrl_start() to properly fix the issue of struct pinctrl_dev > > handle not being initialized before driver functions are called. > > Hm I guess that could work, but can we keep pinctrl_register() with the old > semantics and add a separate pinctrl_register_and_defer() > for those who just wanna start it later by a separate call? > > Then we don't need any special flags. OK I'll take a look. > > Or do you guys have any better ideas? > > Not really. So you mean revert the previous patch and apply something > like this instead? Let me first take a look to see if we can fix it by making drivers using GENERIC_PINCTRL_GROUPS or GENERIC_PINMUX_FUNCTIONS register with pinctrl_register_and_defer(). I'll post a patch for that today. Then maybe for v4.12 we can attempt to move all pin controller drivers to using it so we can fix the problem for good. Regards, Tony
