On Fri, Apr 29, 2022 at 5:37 PM William Breathitt Gray <william.gray@xxxxxxxxxx> wrote: > On Fri, Apr 29, 2022 at 04:46:00PM +0200, Niklas Schnelle wrote: > > Good question. As far as I can see most (all?) of these have "select > > ISA_BUS_API" which is "def_bool ISA". Now "config ISA" seems to > > currently be repeated in architectures and doesn't have an explicit > > HAS_IOPORT dependency (it maybe should have one). But it does only make > > sense on architectures with HAS_IOPORT set. > > There is such a thing as ISA DMA, but you'll still need to initialize > the device via the IO Port bus first, so perhaps setting HAS_IOPORT for > "config ISA" is the right thing to do: all ISA devices are expected to > communicate in some way via ioport. Adding that dependency seems like the right solution to me. Yours, Linus Walleij
