On Wed, Aug 26, 2020 at 09:45:47PM +0100, Mark Brown wrote: > On Wed, Aug 26, 2020 at 11:41:08PM +0300, Vladimir Oltean wrote: > > On Wed, Aug 26, 2020 at 10:34:04PM +0300, Andy Shevchenko wrote: > > > > Theoretically you may declare your HID in the same / similar way as > > > PRP0001 and use same compatible strings and all other DT properties > > > (when they make sense and not duplicate ACPI functionality). > > > But better if ACPI people can tell you (I Cc'ed Rafael and ACPI > > > mailing list) if it is gonna work. > > > Something doesn't look right about PRP0001, what's the catch? > > Microsoft decided not to implement support for it in Windows, it's > essentially there for embedded style x86 platforms running Linux so they > don't need to reimplement so many wheels and can just reuse existing DT > bindings but it causes problems if you want to run Windows (and possibly > some of the enterprise Linux distros, I can't remember if any of them > had concerns about it) on the platform. So if a silicon vendor doesn't care about Windows, what incentive does it have to even register an official ACPI/PNP ID for its devices?
