diff options
| author | David E. Box <david.e.box@linux.intel.com> | 2021-03-19 13:18:43 -0700 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-03-23 21:11:19 +0100 |
| commit | a01be40c6313d3bb6e121820847c6650c358be88 (patch) | |
| tree | d4c9dd8b1476ca0fa515ff39e1b5013aeb634216 | |
| parent | 49702bace77db951d9f23c37f7d6647e5b008848 (diff) | |
platform/x86: intel_pmc_core: Update Kconfig
The intel_pmc_core driver is mostly used as a debugging driver for Intel
platforms that support SLPS0 (S0ix). But the driver may also be used to
communicate actions to the PMC in order to ensure transition to SLPS0 on
some systems and architectures. As such the driver should be built on all
platforms it supports. Indicate this in the Kconfig. Also update the list
of supported features.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Suggested-by: Mario Limonciello <mario.limonciello@dell.com>
Link: https://lore.kernel.org/r/20210319201844.3305399-1-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | drivers/platform/x86/Kconfig | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index c9fd9adb79ac..dcc01dd5ded1 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -1174,15 +1174,20 @@ config INTEL_PMC_CORE depends on PCI help The Intel Platform Controller Hub for Intel Core SoCs provides access - to Power Management Controller registers via a PCI interface. This + to Power Management Controller registers via various interfaces. This driver can utilize debugging capabilities and supported features as - exposed by the Power Management Controller. + exposed by the Power Management Controller. It also may perform some + tasks in the PMC in order to enable transition into the SLPS0 state. + It should be selected on all Intel platforms supported by the driver. Supported features: - SLP_S0_RESIDENCY counter - PCH IP Power Gating status - - LTR Ignore + - LTR Ignore / LTR Show - MPHY/PLL gating status (Sunrisepoint PCH only) + - SLPS0 Debug registers (Cannonlake/Icelake PCH) + - Low Power Mode registers (Tigerlake and beyond) + - PMC quirks as needed to enable SLPS0/S0ix config INTEL_PMT_CLASS tristate |