[PATCH 5/6] gpio: Add new gpio-macsmc driver for Apple Macs

[Hector Martin]

On 05/09/2022 23.01, Russell King (Oracle) wrote:
> On Mon, Sep 05, 2022 at 04:16:27PM +0300, Andy Shevchenko wrote:
>> P.S. Do you have a platform to test all these?
> 
> Yes, but that doesn't mean I can do testing sufficient to ensure that
> the modifications are correct. As I understand things, the SMC is not
> limited to just aarch64 hardware.

FWIW, the RTKit backend is limited to aarch64 hardware, and that's also
why I kept all the endian-munging there. T2 and legacy x86 backends
(which don't exist yet, so whether things need changing for those
platforms is an open question anyway) would respectively do whatever
endian-munging is appropriate for them.

So at this point, only Apple Mx AArch64 SoCs matter, though I *tried* to
write the code in the way that I thought was most likely to cleanly
transfer over to other SMC platforms by just changing the backend code.

- Hector