cpu/efm32: define EFM power modes for pm_layered

jue89 · jue89 · commit 6ec013516654 · 2022-10-17T23:12:15.000+02:00
diff --git a/cpu/efm32/include/periph_cpu.h b/cpu/efm32/include/periph_cpu.h
@@ -456,6 +456,15 @@ typedef struct {
  */
 #define PM_NUM_MODES    (3U)
 
+/**
+ * @brief   Available power modes
+ * @{
+ */
+#define PM_MODE_EM3     (0)
+#define PM_MODE_EM2     (1)
+#define PM_MODE_EM1     (2)
+/** @} */
+
 /**
  * @name    Watchdog timer (WDT) configuration
  * @{
