Hi Heikki, On Wed, Feb 14, 2024 at 3:59 AM Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> wrote: > > Hi Emilie, > > On Wed, Feb 14, 2024 at 12:04:22PM +0100, Emilie Roberts wrote: > > My understanding is that this is related to the wiring spec and not > > ChromeOS specific. It seems possible that OEMs making non-ChromeOS devices > > may have this same issue. Or are we certain that only Chromebooks will ever > > see this? > > Non-ChromeOS platforms do not have this issue. > > The issue is with the ACPI tables - the USB role switch ACPI device > nodes don't have the _PLD object on these systems. Ideally this could > be fixed there by simply adding the _PLD to those ACPI device objects, > but I understood that that is not an option. > > But maybe I misunderstood... Can the ACPI tables on these platforms > still be updated? Since it's just a _PLD update to, it should be possible to do a "light" firmware update on the relevant boards. Shyam/Emilie/Won, how practical is this? I'd much prefer this to be fixed properly in the ACPI table than relying on this quirk. IAC, if we absolutely *have* to use this quirk: Acked-by: Prashant Malani <pmalani@xxxxxxxxxxxx> Thanks,
