On Mon, Jan 16, 2023 at 08:16:18PM +0200, Vladimir Oltean wrote: > On Mon, Jan 16, 2023 at 05:50:13PM +0000, Russell King (Oracle) wrote: > > On Mon, Jan 16, 2023 at 06:34:14PM +0100, Marcin Wojtas wrote: > > > fixed-link PHYs API is used by DSA and a number of drivers > > > and was depending on of_. Switch to fwnode_ so to make it > > > hardware description agnostic and allow to be used in ACPI > > > world as well. > > > > Would it be better to let the fixed-link PHY die, and have everyone use > > the more flexible fixed link implementation in phylink? > > Would it be even better if DSA had some driver-level prerequisites to > impose for ACPI support - like phylink support rather than adjust_link - > and we would simply branch off to a dsa_shared_port_link_register_acpi() > function, leaving the current dsa_shared_port_link_register_of() alone, > with all its workarounds and hacks? I don't believe that carrying all > that logic over to a common fwnode based API is the proper way forward. I agree with you there, here is little attempt to make a clean ACPI binding. Most of the attempts to add ACPI support seem to try to take the short cut for just search/replace of_ with fwnode_. And we then have to push back and say no, and generally it then goes quiet. Marcin, please approach this from the other end. Please document in Documentation/firmware-guide/acpi/dsd what a clean binding should look like, and then try to implement it. Andrew