Add ToughC5 charge current control

src/utility/Power_Class.cpp

@@ -2391,6 +2391,21 @@ namespace m5
           M5pm1.setGPIOOutput(M5PM1_Class::gpio3, true);
         }
       break;
+#elif defined (CONFIG_IDF_TARGET_ESP32C5)
+    case pmic_t::pmic_m5pm1:
+      if (M5.getBoard() == board_t::board_M5ToughC5)
+      {
+        // ToughC5 CHG_PROG is IOE1 G1: low selects 830 mA, high selects 180 mA.
+        // Set the latch before enabling push-pull output to avoid a transient
+        // selection of the opposite current during the mode transition.
+        auto& ioe1 = M5.getIOExpander(0);
+        const bool select_180mA = max_mA < 830;
+        ioe1.setPullMode(M5IOE1_Class::gpio1, IOExpander_Base::pull_none);
+        ioe1.digitalWrite(M5IOE1_Class::gpio1, select_180mA);
+        ioe1.setHighImpedance(M5IOE1_Class::gpio1, false);
+        ioe1.setDirection(M5IOE1_Class::gpio1, true);
+      }
+      return;
 #endif
 
 #endif

src/utility/Power_Class.hpp

@@ -161,7 +161,8 @@ namespace m5
 
     /// set battery charge current
     /// @param max_mA milli ampere.
-    /// @note CoreMatrix selects the nearest supported maximum: 180 mA below 650 mA, otherwise 650 mA.
+    /// @note CoreMatrix selects 180 mA below 650 mA, otherwise 650 mA.
+    /// @note ToughC5 selects 180 mA below 830 mA, otherwise 830 mA.
     /// @attention Non-functioning models : CoreInk , M5Paper , M5Stack(with non I2C IP5306)
     void setChargeCurrent(std::uint16_t max_mA);