On Fri, 07 Aug 2020, Michael Walle wrote: > Hi Uwe, Hi Lee, > > Am 2020-08-06 10:40, schrieb Uwe Kleine-König: > > On Mon, Aug 03, 2020 at 11:35:52AM +0200, Michael Walle wrote: > > > diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig > > > index 7dbcf6973d33..a0d50d70c3b9 100644 > > > --- a/drivers/pwm/Kconfig > > > +++ b/drivers/pwm/Kconfig > > > @@ -428,6 +428,16 @@ config PWM_SIFIVE > > > To compile this driver as a module, choose M here: the module > > > will be called pwm-sifive. > > > > > > +config PWM_SL28CPLD > > > + tristate "Kontron sl28cpld PWM support" > > > + select MFD_SIMPLE_MFD_I2C > > > > Is it sensible to present this option to everyone? Maybe > > > > depends on SOME_SYMBOL_ONLY_TRUE_ON_SL28CPLD || COMPILE_TEST > > Because there is now no real MFD driver anymore, there is also > no symbol for that. The closest would be ARCH_ARM64 but I don't > think that is a good idea. > > Lee, what do you think about adding a symbol to the MFD, which > selects MFD_SIMPLE_MFD_I2C but doesn't enable any C modules? > > I.e. > config MFD_SL28CPLD > tristate "Kontron sl28cpld" > select MFD_SIMPLE_MFD_I2C > help > Say yes here to add support for the Kontron sl28cpld board > management controller. > > Then all the other device driver could depend on the MFD_SL28CPLD > symbol. You want to add a virtual symbol to prevent having to present a real one? How is that a reasonable solution? -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
