1 files changed, 14 insertions, 6 deletions

diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index b8b494b3e0d0..dda70981b7a6 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -31,14 +31,22 @@ source "drivers/pci/pcie/aer/Kconfig"
 # PCI Express ASPM
 #
 config PCIEASPM
-        bool "PCI Express ASPM support(Experimental)"
-        depends on PCI && EXPERIMENTAL && PCIEPORTBUS
-        default n
+        bool "PCI Express ASPM control" if EMBEDDED
+        depends on PCI && PCIEPORTBUS
+        default y
         help
-          This enables PCI Express ASPM (Active State Power Management) and
-          Clock Power Management. ASPM supports state L0/L0s/L1.
+          This enables OS control over PCI Express ASPM (Active State
+          Power Management) and Clock Power Management. ASPM supports
+          state L0/L0s/L1.
 
-          When in doubt, say N.
+          ASPM is initially set up the the firmware. With this option enabled,
+          Linux can modify this state in order to disable ASPM on known-bad
+          hardware or configurations and enable it when known-safe.
+
+          ASPM can be disabled or enabled at runtime via
+          /sys/module/pcie_aspm/parameters/policy
+
+          When in doubt, say Y.
 config PCIEASPM_DEBUG
         bool "Debug PCI Express ASPM"
         depends on PCIEASPM