diff options
| -rw-r--r-- | drivers/power/pm2301_charger.c | 173 | ||||
| -rw-r--r-- | drivers/power/pm2301_charger.h | 29 |
2 files changed, 148 insertions, 54 deletions
diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c index e7a360a0426f..7d2ec541ba7f 100644 --- a/drivers/power/pm2301_charger.c +++ b/drivers/power/pm2301_charger.c @@ -224,7 +224,7 @@ static int pm2xxx_charger_bat_disc_mngt(struct pm2xxx_charger *pm2, int val) { dev_dbg(pm2->dev, "battery disconnected\n"); - return (pm2xxx_charging_disable_mngt(pm2)); + return 0; } static int pm2xxx_charger_detection(struct pm2xxx_charger *pm2, u8 *val) @@ -275,17 +275,17 @@ static int pm2xxx_charger_itv_pwr_unplug_mngt(struct pm2xxx_charger *pm2, return 0; } -static int pm2_int_reg0(struct pm2xxx_charger *pm2) +static int pm2_int_reg0(void *pm2_data, int val) { + struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (pm2->pm2_int[0] & - (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)) { - ret = pm2xxx_charger_vbat_lsig_mngt(pm2, pm2->pm2_int[0] & + if (val & (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)) { + ret = pm2xxx_charger_vbat_lsig_mngt(pm2, val & (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)); } - if (pm2->pm2_int[0] & PM2XXX_INT1_ITVBATDISCONNECT) { + if (val & PM2XXX_INT1_ITVBATDISCONNECT) { ret = pm2xxx_charger_bat_disc_mngt(pm2, PM2XXX_INT1_ITVBATDISCONNECT); } @@ -293,21 +293,21 @@ static int pm2_int_reg0(struct pm2xxx_charger *pm2) return ret; } -static int pm2_int_reg1(struct pm2xxx_charger *pm2) +static int pm2_int_reg1(void *pm2_data, int val) { + struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (pm2->pm2_int[1] & - (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG)) { + if (val & (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG)) { dev_dbg(pm2->dev , "Main charger plugged\n"); - ret = pm2xxx_charger_itv_pwr_plug_mngt(pm2, pm2->pm2_int[1] & + ret = pm2xxx_charger_itv_pwr_plug_mngt(pm2, val & (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG)); } - if (pm2->pm2_int[1] & + if (val & (PM2XXX_INT2_ITVPWR1UNPLUG | PM2XXX_INT2_ITVPWR2UNPLUG)) { dev_dbg(pm2->dev , "Main charger unplugged\n"); - ret = pm2xxx_charger_itv_pwr_unplug_mngt(pm2, pm2->pm2_int[1] & + ret = pm2xxx_charger_itv_pwr_unplug_mngt(pm2, val & (PM2XXX_INT2_ITVPWR1UNPLUG | PM2XXX_INT2_ITVPWR2UNPLUG)); } @@ -315,14 +315,15 @@ static int pm2_int_reg1(struct pm2xxx_charger *pm2) return ret; } -static int pm2_int_reg2(struct pm2xxx_charger *pm2) +static int pm2_int_reg2(void *pm2_data, int val) { + struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (pm2->pm2_int[2] & PM2XXX_INT3_ITAUTOTIMEOUTWD) - ret = pm2xxx_charger_wd_exp_mngt(pm2, pm2->pm2_int[2]); + if (val & PM2XXX_INT3_ITAUTOTIMEOUTWD) + ret = pm2xxx_charger_wd_exp_mngt(pm2, val); - if (pm2->pm2_int[2] & (PM2XXX_INT3_ITCHPRECHARGEWD | + if (val & (PM2XXX_INT3_ITCHPRECHARGEWD | PM2XXX_INT3_ITCHCCWD | PM2XXX_INT3_ITCHCVWD)) { dev_dbg(pm2->dev, "Watchdog occured for precharge, CC and CV charge\n"); @@ -331,64 +332,65 @@ static int pm2_int_reg2(struct pm2xxx_charger *pm2) return ret; } -static int pm2_int_reg3(struct pm2xxx_charger *pm2) +static int pm2_int_reg3(void *pm2_data, int val) { + struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (pm2->pm2_int[3] & (PM2XXX_INT4_ITCHARGINGON)) { + if (val & (PM2XXX_INT4_ITCHARGINGON)) { dev_dbg(pm2->dev , "chargind operation has started\n"); } - if (pm2->pm2_int[3] & (PM2XXX_INT4_ITVRESUME)) { + if (val & (PM2XXX_INT4_ITVRESUME)) { dev_dbg(pm2->dev, "battery discharged down to VResume threshold\n"); } - if (pm2->pm2_int[3] & (PM2XXX_INT4_ITBATTFULL)) { + if (val & (PM2XXX_INT4_ITBATTFULL)) { dev_dbg(pm2->dev , "battery fully detected\n"); } - if (pm2->pm2_int[3] & (PM2XXX_INT4_ITCVPHASE)) { + if (val & (PM2XXX_INT4_ITCVPHASE)) { dev_dbg(pm2->dev, "CV phase enter with 0.5C charging\n"); } - if (pm2->pm2_int[3] & - (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV)) { + if (val & (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV)) { pm2->failure_case = VPWR_OVV; - ret = pm2xxx_charger_ovv_mngt(pm2, pm2->pm2_int[3] & + ret = pm2xxx_charger_ovv_mngt(pm2, val & (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV)); dev_dbg(pm2->dev, "VPWR/VSYSTEM overvoltage detected\n"); } - if (pm2->pm2_int[3] & (PM2XXX_INT4_S_ITBATTEMPCOLD | + if (val & (PM2XXX_INT4_S_ITBATTEMPCOLD | PM2XXX_INT4_S_ITBATTEMPHOT)) { - ret = pm2xxx_charger_batt_therm_mngt(pm2, - pm2->pm2_int[3] & (PM2XXX_INT4_S_ITBATTEMPCOLD | - PM2XXX_INT4_S_ITBATTEMPHOT)); + ret = pm2xxx_charger_batt_therm_mngt(pm2, val & + (PM2XXX_INT4_S_ITBATTEMPCOLD | + PM2XXX_INT4_S_ITBATTEMPHOT)); dev_dbg(pm2->dev, "BTEMP is too Low/High\n"); } return ret; } -static int pm2_int_reg4(struct pm2xxx_charger *pm2) +static int pm2_int_reg4(void *pm2_data, int val) { + struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (pm2->pm2_int[4] & PM2XXX_INT5_ITVSYSTEMOVV) { + if (val & PM2XXX_INT5_ITVSYSTEMOVV) { pm2->failure_case = VSYSTEM_OVV; - ret = pm2xxx_charger_ovv_mngt(pm2, pm2->pm2_int[4] & + ret = pm2xxx_charger_ovv_mngt(pm2, val & PM2XXX_INT5_ITVSYSTEMOVV); dev_dbg(pm2->dev, "VSYSTEM overvoltage detected\n"); } - if (pm2->pm2_int[4] & (PM2XXX_INT5_ITTHERMALWARNINGFALL | + if (val & (PM2XXX_INT5_ITTHERMALWARNINGFALL | PM2XXX_INT5_ITTHERMALWARNINGRISE | PM2XXX_INT5_ITTHERMALSHUTDOWNFALL | PM2XXX_INT5_ITTHERMALSHUTDOWNRISE)) { dev_dbg(pm2->dev, "BTEMP die temperature is too Low/High\n"); - ret = pm2xxx_charger_die_therm_mngt(pm2, pm2->pm2_int[4] & + ret = pm2xxx_charger_die_therm_mngt(pm2, val & (PM2XXX_INT5_ITTHERMALWARNINGFALL | PM2XXX_INT5_ITTHERMALWARNINGRISE | PM2XXX_INT5_ITTHERMALSHUTDOWNFALL | @@ -398,40 +400,40 @@ static int pm2_int_reg4(struct pm2xxx_charger *pm2) return ret; } -static int pm2_int_reg5(struct pm2xxx_charger *pm2) +static int pm2_int_reg5(void *pm2_data, int val) { + struct pm2xxx_charger *pm2 = pm2_data; + int ret = 0; + - if (pm2->pm2_int[5] - & (PM2XXX_INT6_ITVPWR2DROP | PM2XXX_INT6_ITVPWR1DROP)) { + if (val & (PM2XXX_INT6_ITVPWR2DROP | PM2XXX_INT6_ITVPWR1DROP)) { dev_dbg(pm2->dev, "VMPWR drop to VBAT level\n"); } - if (pm2->pm2_int[5] & (PM2XXX_INT6_ITVPWR2VALIDRISE | - PM2XXX_INT6_ITVPWR1VALIDRISE | - PM2XXX_INT6_ITVPWR2VALIDFALL | - PM2XXX_INT6_ITVPWR1VALIDFALL)) { + if (val & (PM2XXX_INT6_ITVPWR2VALIDRISE | + PM2XXX_INT6_ITVPWR1VALIDRISE | + PM2XXX_INT6_ITVPWR2VALIDFALL | + PM2XXX_INT6_ITVPWR1VALIDFALL)) { dev_dbg(pm2->dev, "Falling/Rising edge on WPWR1/2\n"); } - return 0; + return ret; } static irqreturn_t pm2xxx_irq_int(int irq, void *data) { struct pm2xxx_charger *pm2 = data; - int ret, i; + struct pm2xxx_interrupts *interrupt = pm2->pm2_int; + int i; - for (i = 0; i < ARRAY_SIZE(pm2->pm2_int); i++) { - ret = pm2xxx_reg_read(pm2, pm2xxx_interrupt_registers[i], - &(pm2->pm2_int[i])); - } + for (i = 0; i < PM2XXX_NUM_INT_REG; i++) { + pm2xxx_reg_read(pm2, + pm2xxx_interrupt_registers[i], + &(interrupt->reg[i])); - pm2_int_reg0(pm2); - pm2_int_reg1(pm2); - pm2_int_reg2(pm2); - pm2_int_reg3(pm2); - pm2_int_reg4(pm2); - pm2_int_reg5(pm2); + if (interrupt->reg[i] > 0) + interrupt->handler[i](pm2, interrupt->reg[i]); + } return IRQ_HANDLED; } @@ -538,7 +540,7 @@ static int pm2xxx_charger_update_charger_current(struct ux500_charger *charger, curr_index = pm2xxx_current_to_regval(ich_out); if (curr_index < 0) { dev_err(pm2->dev, - "Charger current too high: charging not started\n"); + "Charger current too high, charging not started\n"); return -ENXIO; } @@ -614,6 +616,59 @@ static int pm2xxx_charging_init(struct pm2xxx_charger *pm2) ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG4, PM2XXX_CH_WD_PRECH_PHASE_60MIN); + /* Disable auto timeout */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG5, + PM2XXX_CH_WD_AUTO_TIMEOUT_20MIN); + + /* + * EOC current level = 100mA + * Precharge current level = 100mA + * CC current level = 1000mA + */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG6, + (PM2XXX_DIR_CH_CC_CURRENT_1000MA | + PM2XXX_CH_PRECH_CURRENT_100MA | + PM2XXX_CH_EOC_CURRENT_100MA)); + + /* + * recharge threshold = 3.8V + * Precharge to CC threshold = 2.9V + */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG7, + (PM2XXX_CH_PRECH_VOL_2_9 | PM2XXX_CH_VRESUME_VOL_3_8)); + + /* float voltage charger level = 4.2V */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG8, + PM2XXX_CH_VOLT_4_2); + + /* Voltage drop between VBAT and VSYS in HW charging = 300mV */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG9, + (PM2XXX_CH_150MV_DROP_300MV | PM2XXX_CHARCHING_INFO_DIS | + PM2XXX_CH_CC_REDUCED_CURRENT_IDENT | + PM2XXX_CH_CC_MODEDROP_DIS)); + + /* Input charger level of over voltage = 10V */ + ret = pm2xxx_reg_write(pm2, PM2XXX_INP_VOLT_VPWR2, + PM2XXX_VPWR2_OVV_10); + ret = pm2xxx_reg_write(pm2, PM2XXX_INP_VOLT_VPWR1, + PM2XXX_VPWR1_OVV_10); + + /* Input charger drop */ + ret = pm2xxx_reg_write(pm2, PM2XXX_INP_DROP_VPWR2, + (PM2XXX_VPWR2_HW_OPT_DIS | PM2XXX_VPWR2_VALID_DIS | + PM2XXX_VPWR2_DROP_DIS)); + ret = pm2xxx_reg_write(pm2, PM2XXX_INP_DROP_VPWR1, + (PM2XXX_VPWR1_HW_OPT_DIS | PM2XXX_VPWR1_VALID_DIS | + PM2XXX_VPWR1_DROP_DIS)); + + /* Disable battery low monitoring */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_LOW_LEV_COMP_REG, + PM2XXX_VBAT_LOW_MONITORING_DIS); + + /* Disable LED */ + ret = pm2xxx_reg_write(pm2, PM2XXX_LED_CTRL_REG, + PM2XXX_LED_SELECT_DIS); + return ret; } @@ -764,6 +819,15 @@ static void pm2xxx_charger_check_main_thermal_prot_work( { }; +static struct pm2xxx_interrupts pm2xxx_int = { + .handler[0] = pm2_int_reg0, + .handler[1] = pm2_int_reg1, + .handler[2] = pm2_int_reg2, + .handler[3] = pm2_int_reg3, + .handler[4] = pm2_int_reg4, + .handler[5] = pm2_int_reg5, +}; + static struct pm2xxx_irq pm2xxx_charger_irq[] = { {"PM2XXX_IRQ_INT", pm2xxx_irq_int}, }; @@ -797,6 +861,8 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, pm2->dev = &i2c_client->dev; pm2->gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + pm2->pm2_int = &pm2xxx_int; + /* get charger spcific platform data */ if (!pl_data->wall_charger) { dev_err(pm2->dev, "no charger platform data supplied\n"); @@ -844,6 +910,7 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, ARRAY_SIZE(pm2xxx_charger_voltage_map) - 1]; pm2->ac_chg.max_out_curr = pm2xxx_charger_current_map[ ARRAY_SIZE(pm2xxx_charger_current_map) - 1]; + pm2->ac_chg.enabled = true; /* Create a work queue for the charger */ pm2->charger_wq = diff --git a/drivers/power/pm2301_charger.h b/drivers/power/pm2301_charger.h index bef38a3552b5..419014714c2f 100644 --- a/drivers/power/pm2301_charger.h +++ b/drivers/power/pm2301_charger.h @@ -34,6 +34,8 @@ #define WD_TIMER 0x30 /* 4min */ #define WD_KICK_INTERVAL (60 * HZ) +#define PM2XXX_NUM_INT_REG 0x6 + /* Constant voltage/current */ #define PM2XXX_CONST_CURR 0x0 #define PM2XXX_CONST_VOLT 0x1 @@ -237,12 +239,32 @@ #define PM2XXX_VPWR2_OVV_10 0x2 #define PM2XXX_VPWR2_OVV_NONE 0x3 +/* Input charger drop VPWR2 */ +#define PM2XXX_VPWR2_HW_OPT_EN (0x1<<4) +#define PM2XXX_VPWR2_HW_OPT_DIS (0x0<<4) + +#define PM2XXX_VPWR2_VALID_EN (0x1<<3) +#define PM2XXX_VPWR2_VALID_DIS (0x0<<3) + +#define PM2XXX_VPWR2_DROP_EN (0x1<<2) +#define PM2XXX_VPWR2_DROP_DIS (0x0<<2) + /* Input charger voltage VPWR1 */ #define PM2XXX_VPWR1_OVV_6_0 0x0 #define PM2XXX_VPWR1_OVV_6_3 0x1 #define PM2XXX_VPWR1_OVV_10 0x2 #define PM2XXX_VPWR1_OVV_NONE 0x3 +/* Input charger drop VPWR1 */ +#define PM2XXX_VPWR1_HW_OPT_EN (0x1<<4) +#define PM2XXX_VPWR1_HW_OPT_DIS (0x0<<4) + +#define PM2XXX_VPWR1_VALID_EN (0x1<<3) +#define PM2XXX_VPWR1_VALID_DIS (0x0<<3) + +#define PM2XXX_VPWR1_DROP_EN (0x1<<2) +#define PM2XXX_VPWR1_DROP_DIS (0x0<<2) + /* Battery low level comparator control register */ #define PM2XXX_VBAT_LOW_MONITORING_DIS 0x0 #define PM2XXX_VBAT_LOW_MONITORING_ENA 0x1 @@ -446,6 +468,11 @@ struct pm2xxx_charger_event_flags { bool chgwdexp; }; +struct pm2xxx_interrupts { + u8 reg[PM2XXX_NUM_INT_REG]; + int (*handler[PM2XXX_NUM_INT_REG])(void *, int); +}; + struct pm2xxx_config { struct i2c_client *pm2xxx_i2c; struct i2c_device_id *pm2xxx_id; @@ -467,7 +494,7 @@ struct pm2xxx_charger { int old_vbat; int failure_case; int failure_input_ovv; - u8 pm2_int[6]; + struct pm2xxx_interrupts *pm2_int; struct ab8500_gpadc *gpadc; struct regulator *regu; struct pm2xxx_bm_data *bat; |