svn commit: r301453 - in head/sys: arm/arm arm64/arm64 dev/fdt dev/gpio dev/iicbus dev/ofw dev/pci dev/vnic kern mips/mips sys

[Andrew Turner]

On Wed, 20 Jul 2016 13:28:53 +0200
Michal Meloun <mmel at FreeBSD.org> wrote:
> Dne 19.07.2016 v 17:06 Nathan Whitehorn napsal(a):
> > 2. It partially duplicates the functionality of OFW_BUS_MAP_INTR(),
> > but is both problematically more general and less flexible (it has
> > requirements on timing of PIC attachment vs. driver resource
> > allocation)  
> OFW_BUS_MAP_INTR()  can parse only OFW  based data and expect that
> parsed data are magicaly stored within the call.
> The new method, bus_map_intr(),  can parse data from multiple sources 
> (OFW, UEFI / ACPI, synthetic[gpio device + pin number]).  It also
> returns parsed data back to caller.
> And no, it  doesn't  add any additional timing requirements .

I've been looking at ACPI on arm64. So far I have not found the need
for this with ACPI as we don't need to send the data to the interrupt
controller driver to be parsed in the way OFW/FDT needs to.

Andrew