platform/x86: intel_pmc_core: Add debugfs entry to access sub-state residencies

Browse source

Prior to Tiger Lake, the platforms that support pmc_core have no
sub-states of S0ix. Tiger Lake has 8 sub-states/low power modes of S0ix
ranging from S0i2.0-S0i2.2 and S0i3.0-S0i3.4, simply represented as
S0ix.y.

Create a debugfs entry to access residency of each sub-state.

Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: David Box <david.e.box@intel.com>
Signed-off-by: David Box <david.e.box@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

...

This commit is contained in:

Gayatri Kammela 2020-02-04 15:01:54 -08:00 • committed by Andy Shevchenko

parent 95b31e3523

commit a45096ac70

2 changed files with 49 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

28

drivers/platform/x86/intel_pmc_core.c

View file

21

drivers/platform/x86/intel_pmc_core.h

View file