ACPI: platform: Add platform profile support

This is the initial implementation of the platform-profile feature.
It provides the details discussed and outlined in the
sysfs-platform_profile document.

Many modern systems have the ability to modify the operating profile to
control aspects like fan speed, temperature and power levels. This
module provides a common sysfs interface that platform modules can register
against to control their individual profile options.

Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
[ rjw: Use full words in enum values names ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index edf1558c1105..5ddff93e38c2 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -326,6 +326,23 @@ config ACPI_THERMAL
 	  To compile this driver as a module, choose M here:
 	  the module will be called thermal.
 
+config ACPI_PLATFORM_PROFILE
+	tristate "ACPI Platform Profile Driver"
+	default m
+	help
+	  This driver adds support for platform-profiles on platforms that
+	  support it.
+
+	  Platform-profiles can be used to control the platform behaviour. For
+	  example whether to operate in a lower power mode, in a higher
+	  power performance mode or between the two.
+
+	  This driver provides the sysfs interface and is used as the registration
+	  point for platform specific drivers.
+
+	  Which profiles are supported is determined on a per-platform basis and
+	  should be obtained from the platform specific driver.
+
 config ACPI_CUSTOM_DSDT_FILE
 	string "Custom DSDT Table file to include"
 	default ""