Re: [net-next: PATCH 09/12] Documentation: ACPI: DSD: introduce DSA description

From: Andy Shevchenko
Date: Wed Jun 22 2022 - 07:04:14 EST


On Wed, Jun 22, 2022 at 11:08:13AM +0200, Marcin Wojtas wrote:
> wt., 21 cze 2022 o 13:42 Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx> napisał(a):

...

> It's not device on MDIO bus, but the MDIO controller's register itself
> (this _CSR belongs to the parent, subnodes do not refer to it in any
> way). The child device requires only _ADR (or whatever else is needed
> for the case the DSA device is attached to SPI/I2C controllers).

More and more the idea of standardizing the MDIOSerialBus() resource looks
plausible. The _ADR() usage is a bit grey area in ACPI specification. Maybe
someone can also make it descriptive, so Microsoft and others won't utilize
_ADR() in any level of weirdness.


--
With Best Regards,
Andy Shevchenko