diff options
Diffstat (limited to 'board/atlas/board.c')
| -rw-r--r-- | board/atlas/board.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/board/atlas/board.c b/board/atlas/board.c index d2562d43d3..6fbbb64b16 100644 --- a/board/atlas/board.c +++ b/board/atlas/board.c @@ -531,15 +531,39 @@ int board_set_active_charge_port(int charge_port) return EC_SUCCESS; } +/* + * Limit the input current to 95% negotiated limit, + * to account for the charger chip margin. + */ + +static int charger_derate(int current) +{ + return current * 95 / 100; +} + static void board_charger_init(void) { - charger_set_input_current_limit( - CHARGER_SOLO, - PD_MAX_CURRENT_MA * - (100 - CONFIG_CHARGER_INPUT_CURRENT_DERATE_PCT) / 100); + charger_set_input_current_limit(CHARGER_SOLO, + charger_derate(PD_MAX_CURRENT_MA)); } DECLARE_HOOK(HOOK_INIT, board_charger_init, HOOK_PRIO_DEFAULT); +/** + * Set the charge limit based upon desired maximum. + * + * @param port Port number. + * @param supplier Charge supplier type. + * @param charge_ma Desired charge limit (mA). + * @param charge_mv Negotiated charge voltage (mV). + */ +void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma, + int charge_mv) +{ + charge_ma = charger_derate(charge_ma); + charge_set_input_current_limit( + MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT), charge_mv); +} + static void board_chipset_suspend(void) { gpio_set_level(GPIO_KBD_BL_EN, 0); |