On Wed, Jun 22, 2022 at 11:08:13AM +0200, Marcin Wojtas wrote:

wt., 21 cze 2022 o 13:42 Andy Shevchenko
[off-list ref] 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