platform/x86/intel/pmc/arl: Put GNA device in D3
JIRA: https://issues.redhat.com/browse/RHEL-29363
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=61584278
Tested: Did sanity pmc testing Intel (intel-arrowlake-s-02) system.
commit ac2d1fd9688fcdfba5acc815fb2b13fec83e5dad
Author: David E. Box david.e.box@linux.intel.com
Date: Tue Feb 27 11:01:34 2024 -0800
platform/x86/intel/pmc/arl: Put GNA device in D3
As is the case on Meteor Lake, the Gaussian & Neural Accelerator (GNA)
device is powered by BIOS to D0 by default. If no driver is loaded, this
will cause the Package C state to be limited to PC2, leading to
significant power consumption and decrease in batter life. Put the GNA
device in D3 by default if no driver is loaded for it.
Fixes: 83f168a1a437 ("platform/x86/intel/pmc: Add Arrow Lake S support to intel_pmc_core driver")
Signed-off-by: "David E. Box" <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://lore.kernel.org/r/20240227190134.1592072-3-david.e.box@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Steve Best sbest@redhat.com