Lotus: enable bypass mode

The upstream code uses a configuration to enable the bypass mode.
It cause the current firmware does not enable the bypass mode when
connect 180w adapter.

Signed-off-by: Josh-Tsai <josh_tsai@compal.com>

Author: Josh-Tsai

common/charge_state.c

@@ -434,6 +434,20 @@ __overridable int board_should_charger_bypass(void)
 	return false;
 }
 
+#ifdef CONFIG_CHARGER_BYPASS_REVERSE_TURBO
+int board_want_charger_change_mode(void)
+{
+	static int pre_batt = BP_YES;
+	int curr_batt = battery_is_present();
+
+	if (pre_batt != curr_batt) {
+		pre_batt = curr_batt;
+		return true;
+	} else
+		return false;
+}
+#endif
+
 int charge_request(bool use_curr, bool is_full)
 {
 	int r1 = EC_SUCCESS, r2 = EC_SUCCESS, r3 = EC_SUCCESS, r4 = EC_SUCCESS;
@@ -478,7 +492,11 @@ int charge_request(bool use_curr, bool is_full)
 	 */
 	should_bypass = board_should_charger_bypass();
 	if ((should_bypass && !(curr.chg.status & CHARGER_BYPASS_MODE)) ||
-	    (!should_bypass && (curr.chg.status & CHARGER_BYPASS_MODE)))
+	    (!should_bypass && (curr.chg.status & CHARGER_BYPASS_MODE))
+#ifdef CONFIG_CHARGER_BYPASS_REVERSE_TURBO
+	    || board_want_charger_change_mode()
+#endif
+	    )
 		charger_enable_bypass_mode(0, should_bypass);
 
 	/*

include/charge_state.h

@@ -420,6 +420,15 @@ __test_only bool charging_progress_displayed(void);
  */
 int board_should_charger_bypass(void);
 
+#ifdef CONFIG_CHARGER_BYPASS_REVERSE_TURBO
+/**
+ * Callback for boards to call the charger_enable_bypass_mode without mode change.
+ *
+ * @return True for requesting change.
+ */
+int board_want_charger_change_mode(void);
+#endif
+
 /* Config Charger */
 #include "charge_state.h"
 

zephyr/Kconfig.charger

@@ -579,7 +579,7 @@ config PLATFORM_EC_CHARGER_MAINTAIN_VBAT
 	  work around quirks of certain charger chips, such as the BD9995X.
 
 config PLATFORM_EC_CHARGER_BYPASS_MODE
-	bool
+	bool "enable charger bypass mode"
 	help
 	  Select this option if the charger will be used in a bypass mode in
 	  order to pass the input current from AC directly to the system

zephyr/program/lotus/lotus/project.conf

@@ -21,6 +21,7 @@ CONFIG_PLATFORM_EC_CHARGER_SENSE_RESISTOR=5
 CONFIG_PLATFORM_EC_CHARGER_SENSE_RESISTOR_AC=5
 CONFIG_PLATFORM_EC_CHARGER_DEFAULT_CURRENT_LIMIT=500
 CONFIG_PLATFORM_EC_CHARGER_MIN_POWER_MW_FOR_POWER_ON=55000
+CONFIG_PLATFORM_EC_CHARGER_BYPASS_MODE=y
 CONFIG_PLATFORM_EC_CHARGER_BYPASS_REVERSE_TURBO=y
 CONFIG_PLATFORM_EC_CHARGER_DISCHARGE_ON_AC_CUSTOM=y
 CONFIG_PLATFORM_EC_USB_PD_VBUS_MEASURE_NOT_PRESENT=y