On Tue, 28 Dec 2021 13:50:20 +0100 Niklas Schnelle <schnelle@xxxxxxxxxxxxx> wrote: > On Tue, 2021-12-28 at 11:32 +0100, Geert Uytterhoeven wrote: > > Hi Niklas, > > > > On Mon, Dec 27, 2021 at 5:53 PM Niklas Schnelle <schnelle@xxxxxxxxxxxxx> wrote: > > > In a future patch HAS_IOPORT=n will result in inb()/outb() and friends > > > not being declared. We thus need to add HAS_IOPORT as dependency for > > > those drivers using them. > > > > > > Co-developed-by: Arnd Bergmann <arnd@xxxxxxxxxx> > > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxxxx> > > > Signed-off-by: Niklas Schnelle <schnelle@xxxxxxxxxxxxx> As a side note, whilst it doesn't always happen and I regularly forget to fix it up whilst applying, it's really helpful to make sure the driver name is somewhere in the patch title. e.g. iio: adc: ad7606: add HAS_IOPORT dependencies. > > > > Thanks for your patch! > > > > > --- a/drivers/iio/adc/Kconfig > > > +++ b/drivers/iio/adc/Kconfig > > > @@ -119,7 +119,7 @@ config AD7606 > > > > > > config AD7606_IFACE_PARALLEL > > > tristate "Analog Devices AD7606 ADC driver with parallel interface support" > > > - depends on HAS_IOMEM > > > + depends on HAS_IOPORT > > > > While this driver uses ins[bw](), this seems unrelated to legacy > > I/O space, as the driver maps a MMIO region. Probably different > > accessors should be used instead. > > You're right on first glance it looks like a misuse of the ins[bw]() > accessors. I do wonder how that even works, if PCI_IOBASE is 0 it would > result in readsw()/readsb() with presumably the correct address but no > idea how this interacts witth x86's special I/O instructions. > > > > > Note that this driver has no in-tree users. Same for the SPI variant, > > but at least that one has modern json-schema DT bindings ;-) > > Can't find any mention in the MAINTAINERS file either. It falls under the Analog devices catch all. We don't list them all individually because there are a lot of them and it would just be noise in many case. Added Michael to CC. You already have Lars. ANALOG DEVICES INC IIO DRIVERS M: Lars-Peter Clausen <lars@xxxxxxxxxx> M: Michael Hennerich <Michael.Hennerich@xxxxxxxxxx> S: Supported W: http://wiki.analog.com/ W: http://ez.analog.com/community/linux-device-drivers F: Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 F: Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 F: Documentation/devicetree/bindings/iio/*/adi,* F: Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml F: drivers/iio/*/ad* F: drivers/iio/adc/ltc249* F: drivers/iio/amplifiers/hmc425a.c F: drivers/staging/iio/*/ad* X: drivers/iio/*/adjd* https://wiki.analog.com/resources/tools-software/linux-drivers/iio-adc/ad7606 includes some details. I'll leave it to the Lars or Michael to confirm what is going on here. Jonathan > > > > > > select AD7606 > > > help > > > Say yes here to build parallel interface support for Analog Devices: > > > > Gr{oetje,eeting}s, > > > > Geert > > > > -- > > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx > > > > In personal conversations with technical people, I call myself a hacker. But > > when I'm talking to journalists I just say "programmer" or something like that. > > -- Linus Torvalds >
