1 files changed, 18 insertions, 0 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 48308dc86e33..aa1ebc561b84 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -423,6 +423,24 @@ config SH_TIMER_IRQ
         default "140" if CPU_SUBTYPE_SH7206
         default "16"
 
+config NO_IDLE_HZ
+        bool "Dynamic tick timer"
+        help
+          Select this option if you want to disable continuous timer ticks
+          and have them programmed to occur as required. This option saves
+          power as the system can remain in idle state for longer.
+
+          By default dynamic tick is disabled during the boot, and can be
+          manually enabled with:
+
+            echo 1 > /sys/devices/system/timer/timer0/dyn_tick
+
+          Alternatively, if you want dynamic tick automatically enabled
+          during boot, pass "dyntick=enable" via the kernel command string.
+
+          Please note that dynamic tick may affect the accuracy of
+          timekeeping on some platforms depending on the implementation.
+
 config SH_PCLK_FREQ
         int "Peripheral clock frequency (in Hz)"
         default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343