Messages in this thread |  | | From | Linus Walleij <> | Date | Sun, 1 May 2022 23:55:31 +0200 | Subject | Re: [RFC v2 10/39] gpio: add HAS_IOPORT dependencies |
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On Fri, Apr 29, 2022 at 5:37 PM William Breathitt Gray <william.gray@linaro.org> 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
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