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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-07 13:30:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-07 13:30:01 -0700
commite9f1cbc0c4114880090c7a578117d3b9cf184ad4 (patch)
tree0869df0d721872da7fe68454aed061728dff1a29 /drivers/acpi/Kconfig
parentaef4226f914016cc00affa8476ba5164dcca56fd (diff)
parent166fdb4dd05f2e9f3b3d347682ab6d1b679b362d (diff)
downloadlinux-e9f1cbc0c4114880090c7a578117d3b9cf184ad4.tar.bz2
Merge tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki: "These include fixes of the recently introduced support for the Platform Runtime Mechanism (PRM) feature, a new backlight quirk, a suspend-to-idle wakeup fix for non-Intel platforms and a fix for the AMBA bus resource list in /proc/iomem. Specifics: - Fix up the recently added Platform Runtime Mechanism (PRM) support by correnting a couple of implementation mistakes in it and adding a Kconfig help text to describe it (Aubrey Li, Rafael Wysocki). - Add backlight quirk for Dell Vostro 3350 (Hans de Goede). - Avoid spurious wakeups from suspend-to-idle on non-Intel platforms by restricting special EC GPE handling to the Intel ones (Mario Limonciello). - Modify the AMBA bus support in ACPI to avoid adding using resource names in /proc/iomem (Liguang Zhang)" * tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: Do not singal PRM support if not enabled ACPI: Correct \_SB._OSC bit definition for PRM ACPI: Kconfig: Provide help text for the ACPI_PRMT option ACPI: PM: Only mark EC GPE for wakeup on Intel systems ACPI: video: Add quirk for the Dell Vostro 3350 ACPI: AMBA: Fix resource name in /proc/iomem
Diffstat (limited to 'drivers/acpi/Kconfig')
-rw-r--r--drivers/acpi/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index fe0bb6277e4d..9d872ea477a6 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -551,3 +551,13 @@ config ACPI_PRMT
bool "Platform Runtime Mechanism Support"
depends on EFI && X86_64
default y
+ help
+ Platform Runtime Mechanism (PRM) is a firmware interface exposing a
+ set of binary executables that can be called from the AML interpreter
+ or directly from device drivers.
+
+ Say Y to enable the AML interpreter to execute the PRM code.
+
+ While this feature is optional in principle, leaving it out may
+ substantially increase computational overhead related to the
+ initialization of some server systems.