diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f29a6e6a97c6..37c645f36a57 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -8,6 +8,8 @@
 	ARM64	ARM64 architecture is enabled.
 	CLK	Common clock infrastructure is enabled.
 	CMA	Contiguous Memory Area support is enabled.
+	CPU_FREQ CPU frequency scaling is enabled.
+	CPU_IDLE CPU idle time management is enabled.
 	DRM	Direct Rendering Management support is enabled.
 	DYNAMIC_DEBUG Build in debug messages and enable them at runtime
 	EARLY	Parameter processed too early to be embedded in initrd.