10534: Power mgmt apis (zephyrproject-rtos#24)

soc: Added power management functions

Power management apis added for dspic33a

Signed-off-by: Adhil Xavier <[email protected]>

Author: Adhil-Ign

soc/microchip/dspic33/dspic33a/CMakeLists.txt

@@ -1,4 +1,5 @@
 zephyr_include_directories(.)
+zephyr_include_directories(${XCDSC_TOOLCHAIN_PATH}/support/generic/h)
 zephyr_sources_ifdef(CONFIG_PM power.c )
 
 set(SOC_LINKER_SCRIPT

soc/microchip/dspic33/dspic33a/power.c

@@ -6,12 +6,15 @@
 #include <zephyr/kernel.h>
 #include <zephyr/device.h>
 #include <zephyr/pm/pm.h>
+#include <xc.h>
 
 void pm_state_set(enum pm_state state, uint8_t substate_id)
 {
 	ARG_UNUSED(substate_id);
 	switch (state) {
 	case PM_STATE_SUSPEND_TO_IDLE:
+		__builtin_disable_interrupts();
+		Idle();
 		break;
 	default:
 		break;
@@ -23,6 +26,7 @@ void pm_state_exit_post_ops(enum pm_state state, uint8_t substate_id)
 	ARG_UNUSED(substate_id);
 	switch (state) {
 	case PM_STATE_SUSPEND_TO_IDLE:
+		__builtin_enable_interrupts();
 		break;
 	default:
 		break;