diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c3c01a0e665..5aa98fee962 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -168,14 +168,6 @@ config HARDWARE_BP_SUPPORTED
 	This option signifies that the target supports hardware-based
 	instruction breakpoints and/or data watchpoints.
 
-config TICKLESS_IDLE_UNSUPPORTED
-	prompt "Tickless Idle Unsupported"
-	bool
-	default n
-	help
-	This option signifies the use of an Intel CPU that lacks
-	support for tickless idle.
-
 config CMOV
 	def_bool n
 	help
diff --git a/arch/x86/configs/micro_basic_minuteia_defconfig b/arch/x86/configs/micro_basic_minuteia_defconfig
index 96483bec520..8baa54fc9d8 100644
--- a/arch/x86/configs/micro_basic_minuteia_defconfig
+++ b/arch/x86/configs/micro_basic_minuteia_defconfig
@@ -116,7 +116,6 @@ CONFIG_CPU_MINUTEIA=y
 #
 CONFIG_ISA_IA32=y
 CONFIG_HARDWARE_BP_SUPPORTED=y
-# CONFIG_TICKLESS_IDLE_UNSUPPORTED is not set
 # CONFIG_CMOV is not set
 CONFIG_CPU_FLOAT_UNSUPPORTED=y
 CONFIG_CPU_SSE_UNSUPPORTED=y
diff --git a/arch/x86/configs/micro_galileo_defconfig b/arch/x86/configs/micro_galileo_defconfig
index 12c89079932..2a989e32e03 100644
--- a/arch/x86/configs/micro_galileo_defconfig
+++ b/arch/x86/configs/micro_galileo_defconfig
@@ -116,7 +116,6 @@ CONFIG_CPU_MINUTEIA=y
 #
 CONFIG_ISA_IA32=y
 CONFIG_HARDWARE_BP_SUPPORTED=y
-# CONFIG_TICKLESS_IDLE_UNSUPPORTED is not set
 # CONFIG_CMOV is not set
 CONFIG_CPU_FLOAT_UNSUPPORTED=y
 CONFIG_CPU_SSE_UNSUPPORTED=y
diff --git a/arch/x86/configs/nano_basic_minuteia_defconfig b/arch/x86/configs/nano_basic_minuteia_defconfig
index eb2422f8786..8eccdacd7af 100644
--- a/arch/x86/configs/nano_basic_minuteia_defconfig
+++ b/arch/x86/configs/nano_basic_minuteia_defconfig
@@ -95,7 +95,6 @@ CONFIG_CPU_MINUTEIA=y
 #
 CONFIG_ISA_IA32=y
 CONFIG_HARDWARE_BP_SUPPORTED=y
-# CONFIG_TICKLESS_IDLE_UNSUPPORTED is not set
 # CONFIG_CMOV is not set
 CONFIG_CPU_FLOAT_UNSUPPORTED=y
 CONFIG_CPU_SSE_UNSUPPORTED=y
diff --git a/arch/x86/configs/nano_galileo_defconfig b/arch/x86/configs/nano_galileo_defconfig
index 92b97827006..252eb0f07af 100644
--- a/arch/x86/configs/nano_galileo_defconfig
+++ b/arch/x86/configs/nano_galileo_defconfig
@@ -95,7 +95,6 @@ CONFIG_CPU_MINUTEIA=y
 #
 CONFIG_ISA_IA32=y
 CONFIG_HARDWARE_BP_SUPPORTED=y
-# CONFIG_TICKLESS_IDLE_UNSUPPORTED is not set
 # CONFIG_CMOV is not set
 CONFIG_CPU_FLOAT_UNSUPPORTED=y
 CONFIG_CPU_SSE_UNSUPPORTED=y
diff --git a/arch/x86/defconfig b/arch/x86/defconfig
index 12c89079932..2a989e32e03 100644
--- a/arch/x86/defconfig
+++ b/arch/x86/defconfig
@@ -116,7 +116,6 @@ CONFIG_CPU_MINUTEIA=y
 #
 CONFIG_ISA_IA32=y
 CONFIG_HARDWARE_BP_SUPPORTED=y
-# CONFIG_TICKLESS_IDLE_UNSUPPORTED is not set
 # CONFIG_CMOV is not set
 CONFIG_CPU_FLOAT_UNSUPPORTED=y
 CONFIG_CPU_SSE_UNSUPPORTED=y
diff --git a/kernel/Kconfig b/kernel/Kconfig
index f2197a198cf..1740bde3562 100644
--- a/kernel/Kconfig
+++ b/kernel/Kconfig
@@ -141,7 +141,7 @@ config TICKLESS_IDLE
 	bool
 	prompt "Tickless idle"
 	default y
-	depends on ADVANCED_POWER_MANAGEMENT && !TICKLESS_IDLE_UNSUPPORTED
+	depends on ADVANCED_POWER_MANAGEMENT
 	help
 	This option suppresses periodic system clock interrupts whenever the
 	kernel becomes idle. This permits the system to remain in a power