Ubuntu
linux package

  1. Bug #1555350
  2. Comment #14

Comment 14 for bug 1555350

Revision history for this message
Sujith Pandel (sujithpandel) wrote :

CONFIG_MAILBOX and CONFIG_PCC are enabled.

I also checked the acpidump. The PCCT defines only a "Generic Communications Subspace" or Type-0 and not the other two types.
(Ref: http://elixir.free-electrons.com/linux/latest/source/include/acpi/actbl3.h#L481)

Whereas the acpi_pcc_probe takes count of only these 2 missing/not-defined PCC subspace types.. I do not know much about this to comment on why this approach..

(Ref: http://elixir.free-electrons.com/linux/latest/source/drivers/mailbox/pcc.c#L448)

Would like to have someone explain why kernel does not consider type-0 in this driver.