feat(core): add pm_is_charging function to power manager api.

diff --git a/core/embed/sys/power_manager/inc/sys/power_manager.h b/core/embed/sys/power_manager/inc/sys/power_manager.h
index 25af1ccc3..d81e5c96c 100644
--- a/core/embed/sys/power_manager/inc/sys/power_manager.h
+++ b/core/embed/sys/power_manager/inc/sys/power_manager.h
@@ -209,6 +209,13 @@ pm_status_t pm_charging_set_max_current(uint16_t current_ma);
  */
 pm_status_t pm_set_soc_target(uint8_t target);
 
+/**
+ * @brief Check if the device is currently charging the battery
+ *
+ * @return true if the device is charging, false otherwise
+ */
+bool pm_is_charging(void);
+
 /**
  * @brief Suspends driver activity so the CPU can enter low-power mode.
  *
diff --git a/core/embed/sys/power_manager/stm32u5/power_manager.c b/core/embed/sys/power_manager/stm32u5/power_manager.c
index 5eb077468..4176dcfb7 100644
--- a/core/embed/sys/power_manager/stm32u5/power_manager.c
+++ b/core/embed/sys/power_manager/stm32u5/power_manager.c
@@ -628,6 +628,26 @@ bool pm_schedule_rtc_wakeup(void) {
   return true;
 }
 
+bool pm_is_charging(void) {
+  pm_driver_t* drv = &g_pm;
+
+  if (!drv->initialized) {
+    return false;
+  }
+
+  bool is_charging = false;
+
+  irq_key_t irq_key = irq_lock();
+  if (drv->charging_enabled &&
+      (!drv->fully_charged && !drv->soc_target_reached) &&
+      (drv->usb_connected || drv->wireless_connected)) {
+    is_charging = true;
+  }
+  irq_unlock(irq_key);
+
+  return is_charging;
+}
+
 bool pm_driver_resume(void) {
   pm_driver_t* drv = &g_pm;
 
diff --git a/core/embed/sys/power_manager/stm32u5/power_manager_internal.h b/core/embed/sys/power_manager/stm32u5/power_manager_internal.h
index 8a27e0bd9..c3057f19c 100644
--- a/core/embed/sys/power_manager/stm32u5/power_manager_internal.h
+++ b/core/embed/sys/power_manager/stm32u5/power_manager_internal.h
@@ -117,6 +117,7 @@ typedef struct {
   // Power source logical state
   bool usb_connected;
   bool wireless_connected;
+  bool fully_charged;
   bool battery_low;
   bool battery_critical;
 
diff --git a/core/embed/sys/power_manager/stm32u5/power_monitoring.c b/core/embed/sys/power_manager/stm32u5/power_monitoring.c
index 5af15b51e..2c3bfb176 100644
--- a/core/embed/sys/power_manager/stm32u5/power_monitoring.c
+++ b/core/embed/sys/power_manager/stm32u5/power_monitoring.c
@@ -120,10 +120,13 @@ void pm_pmic_data_ready(void* context, pmic_report_t* report) {
                         drv->pmic_data.ntc_temp);
     }
 
-    // Charging completed
+    // Charging completed flag from PMIC controller
     if (drv->pmic_data.charge_status & 0x2) {
       // Force fuel gauge to 100%, keep the covariance
+      drv->fully_charged = true;
       fuel_gauge_set_soc(&drv->fuel_gauge, 1.0f, drv->fuel_gauge.P);
+    } else {
+      drv->fully_charged = false;
     }
 
     // Ceil the float soc to user-friendly integer
diff --git a/core/embed/sys/suspend/stm32u5/suspend.c b/core/embed/sys/suspend/stm32u5/suspend.c
index b29b40726..f5492c4cb 100644
--- a/core/embed/sys/suspend/stm32u5/suspend.c
+++ b/core/embed/sys/suspend/stm32u5/suspend.c
@@ -76,10 +76,7 @@ wakeup_flags_t system_suspend(void) {
   // device is woke up. This state is signaled with RGB LED charging effect
   bool charging_in_suspend;
   do {
-    pm_state_t pm_state;
-    pm_get_state(&pm_state);
-
-    if (pm_state.usb_connected || pm_state.wireless_connected) {
+    if (pm_is_charging()) {
       charging_in_suspend = true;
 
 #ifdef USE_RGB_LED