Hi Sascha, On Tue, Jan 28, 2020 at 09:45:50AM +0100, Sascha Hauer wrote: > Hi Michael, > > On Mon, Jan 27, 2020 at 04:50:11PM +0100, Michael Grzeschik wrote: > > Currently the pfuze driver is build dependent to ARCH_IMX6. To make it > > possible to work with ARCH_IMX8 we move the imx6_poweroff call to an own > > poweroff handler. > > > > Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> > > --- > > arch/arm/mach-imx/imx6.c | 8 ++++++++ > > drivers/regulator/Kconfig | 2 +- > > drivers/regulator/pfuze.c | 2 -- > > 3 files changed, 9 insertions(+), 3 deletions(-) > > > > diff --git a/arch/arm/mach-imx/imx6.c b/arch/arm/mach-imx/imx6.c > > index 41e0066add..8f1638c1ea 100644 > > --- a/arch/arm/mach-imx/imx6.c > > +++ b/arch/arm/mach-imx/imx6.c > > @@ -401,3 +401,11 @@ void __noreturn imx6_pm_stby_poweroff(void) > > > > while(1); > > } > > + > > +static int imx6_init(void) > > +{ > > + poweroff_handler_register_fn(imx6_pm_stby_poweroff); > > + > > + return 0; > > +} > > imx6_pm_stby_poweroff() only works when a pfuze is present and is > configured correctly. Calling this on every i.MX board is not nice. Right > What you can do is to call pfuze_register_init_callback() from here. > You'll have to add a static inline wrapper for this in case pfuze > support is not compiled in. So you mean, call pfuze_register_init_callback to register a callback function which then itself registers the poweroff_handler as above? I think that could work, but then the init_callback is already used for every imx6. The callback would also be overwritten by users in board code trying to preconfigure the pfuze into a sane state, right? > I wonder how this compiles as my version of this file already has a > function named imx6_init(). Using this is preferred btw as it's already > made sure that it will run only on i.MX6. Duh, it wont. I tried it with imx6 disabled. > > +coredevice_initcall(imx6_init); > > Note that this doesn't necessarily means that we are running an i.MX6. > It could be whatever else is compiled in. Yes, therefor the callback approach is to be prefered. Michael -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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