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-rw-r--r--keyboards/cannonkeys/iron165/chconf.h4
-rw-r--r--keyboards/cannonkeys/iron165/rules.mk4
2 files changed, 4 insertions, 4 deletions
diff --git a/keyboards/cannonkeys/iron165/chconf.h b/keyboards/cannonkeys/iron165/chconf.h
index 99fa8ce39..89388dd5a 100644
--- a/keyboards/cannonkeys/iron165/chconf.h
+++ b/keyboards/cannonkeys/iron165/chconf.h
@@ -105,10 +105,6 @@
*/
#define CH_CFG_NO_IDLE_THREAD FALSE
-/* Use __WFI in the idle thread for waiting. Does lower the power
- * consumption. */
-#define CORTEX_ENABLE_WFI_IDLE TRUE
-
/** @} */
/*===========================================================================*/
diff --git a/keyboards/cannonkeys/iron165/rules.mk b/keyboards/cannonkeys/iron165/rules.mk
index edc84edd5..33529718e 100644
--- a/keyboards/cannonkeys/iron165/rules.mk
+++ b/keyboards/cannonkeys/iron165/rules.mk
@@ -20,3 +20,7 @@ NKRO_ENABLE = yes # USB Nkey Rollover
CUSTOM_MATRIX = no # Custom matrix file
# BACKLIGHT_ENABLE = yes # This is broken on 072 for some reason
RGBLIGHT_ENABLE = no
+
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE