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ab8500-bm: Add support for the new ab8540 platform 

Provide AB8540 platform specific information required to run the
Battery Management subsystem on AB8540 based devices. For this to
happen we see the introduction of separate platform specific data
structures and a means in which to process them.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
hifive-unleashed-5.1
Lee Jones 2012-08-29 20:36:51 +08:00
parent 2c4c40ac00
commit 861a30da53
5 changed files with 248 additions and 170 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

91
drivers/power/ab8500_bmdata.c
View File

@ -414,13 +414,20 @@ static const struct abx500_fg_parameters fg = {
.pcut_debounce_time = 2,
};
static const struct abx500_maxim_parameters maxi_params = {
static const struct abx500_maxim_parameters ab8500_maxi_params = {
.ena_maxi = true,
.chg_curr = 910,
.wait_cycles = 10,
.charger_curr_step = 100,
};
static const struct abx500_maxim_parameters abx540_maxi_params = {
.ena_maxi = true,
.chg_curr = 3000,
.wait_cycles = 10,
.charger_curr_step = 200,
};
static const struct abx500_bm_charger_parameters chg = {
.usb_volt_max = 5500,
.usb_curr_max = 1500,
@ -428,6 +435,46 @@ static const struct abx500_bm_charger_parameters chg = {
.ac_curr_max = 1500,
};
/*
* This array maps the raw hex value to charger output current used by the
* AB8500 values
*/
static int ab8500_charge_output_curr_map[] = {
100, 200, 300, 400, 500, 600, 700, 800,
900, 1000, 1100, 1200, 1300, 1400, 1500, 1500,
};
static int ab8540_charge_output_curr_map[] = {
0, 0, 0, 75, 100, 125, 150, 175,
200, 225, 250, 275, 300, 325, 350, 375,
400, 425, 450, 475, 500, 525, 550, 575,
600, 625, 650, 675, 700, 725, 750, 775,
800, 825, 850, 875, 900, 925, 950, 975,
1000, 1025, 1050, 1075, 1100, 1125, 1150, 1175,
1200, 1225, 1250, 1275, 1300, 1325, 1350, 1375,
1400, 1425, 1450, 1500, 1600, 1700, 1900, 2000,
};
/*
* This array maps the raw hex value to charger input current used by the
* AB8500 values
*/
static int ab8500_charge_input_curr_map[] = {
50, 98, 193, 290, 380, 450, 500, 600,
700, 800, 900, 1000, 1100, 1300, 1400, 1500,
};
static int ab8540_charge_input_curr_map[] = {
25, 50, 75, 100, 125, 150, 175, 200,
225, 250, 275, 300, 325, 350, 375, 400,
425, 450, 475, 500, 525, 550, 575, 600,
625, 650, 675, 700, 725, 750, 775, 800,
825, 850, 875, 900, 925, 950, 975, 1000,
1025, 1050, 1075, 1100, 1125, 1150, 1175, 1200,
1225, 1250, 1275, 1300, 1325, 1350, 1375, 1400,
1425, 1450, 1475, 1500, 1500, 1500, 1500, 1500,
};
struct abx500_bm_data ab8500_bm_data = {
.temp_under = 3,
.temp_low = 8,
@ -447,15 +494,53 @@ struct abx500_bm_data ab8500_bm_data = {
.fg_res = 100,
.cap_levels = &cap_levels,
.bat_type = bat_type_thermistor,
.n_btypes = 3,
.n_btypes = ARRAY_SIZE(bat_type_thermistor),
.batt_id = 0,
.interval_charging = 5,
.interval_not_charging = 120,
.temp_hysteresis = 3,
.gnd_lift_resistance = 34,
.maxi = &maxi_params,
.chg_output_curr = ab8500_charge_output_curr_map,
.n_chg_out_curr = ARRAY_SIZE(ab8500_charge_output_curr_map),
.maxi = &ab8500_maxi_params,
.chg_params = &chg,
.fg_params = &fg,
.chg_input_curr = ab8500_charge_input_curr_map,
.n_chg_in_curr = ARRAY_SIZE(ab8500_charge_input_curr_map),
};
struct abx500_bm_data ab8540_bm_data = {
.temp_under = 3,
.temp_low = 8,
.temp_high = 43,
.temp_over = 48,
.main_safety_tmr_h = 4,
.temp_interval_chg = 20,
.temp_interval_nochg = 120,
.usb_safety_tmr_h = 4,
.bkup_bat_v = BUP_VCH_SEL_2P6V,
.bkup_bat_i = BUP_ICH_SEL_150UA,
.no_maintenance = false,
.capacity_scaling = false,
.adc_therm = ABx500_ADC_THERM_BATCTRL,
.chg_unknown_bat = false,
.enable_overshoot = false,
.fg_res = 100,
.cap_levels = &cap_levels,
.bat_type = bat_type_thermistor,
.n_btypes = ARRAY_SIZE(bat_type_thermistor),
.batt_id = 0,
.interval_charging = 5,
.interval_not_charging = 120,
.temp_hysteresis = 3,
.gnd_lift_resistance = 0,
.maxi = &abx540_maxi_params,
.chg_params = &chg,
.fg_params = &fg,
.chg_output_curr = ab8540_charge_output_curr_map,
.n_chg_out_curr = ARRAY_SIZE(ab8540_charge_output_curr_map),
.chg_input_curr = ab8540_charge_input_curr_map,
.n_chg_in_curr = ARRAY_SIZE(ab8540_charge_input_curr_map),
};
int ab8500_bm_of_probe(struct device *dev,

42
drivers/power/ab8500_btemp.c
View File

@ -42,6 +42,9 @@
#define BTEMP_BATCTRL_CURR_SRC_16UA 16
#define BTEMP_BATCTRL_CURR_SRC_18UA 18
#define BTEMP_BATCTRL_CURR_SRC_60UA 60
#define BTEMP_BATCTRL_CURR_SRC_120UA 120
#define to_ab8500_btemp_device_info(x) container_of((x), \
struct ab8500_btemp, btemp_psy);
@ -216,7 +219,12 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di,
/* Only do this for batteries with internal NTC */
if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && enable) {
if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
if (is_ab8540(di->parent)) {
if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_60UA)
curr = BAT_CTRL_60U_ENA;
else
curr = BAT_CTRL_120U_ENA;
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_16UA)
curr = BAT_CTRL_16U_ENA;
else
@ -257,7 +265,14 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di,
} else if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && !enable) {
dev_dbg(di->dev, "Disable BATCTRL curr source\n");
if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
if (is_ab8540(di->parent)) {
/* Write 0 to the curr bits */
ret = abx500_mask_and_set_register_interruptible(
di->dev,
AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA,
~(BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA));
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
/* Write 0 to the curr bits */
ret = abx500_mask_and_set_register_interruptible(
di->dev,
@ -314,7 +329,13 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di,
* if we got an error above
*/
disable_curr_source:
if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
if (is_ab8540(di->parent)) {
/* Write 0 to the curr bits */
ret = abx500_mask_and_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA,
~(BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA));
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
/* Write 0 to the curr bits */
ret = abx500_mask_and_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
@ -541,7 +562,9 @@ static int ab8500_btemp_id(struct ab8500_btemp *di)
{
int res;
u8 i;
if (is_ab9540(di->parent) || is_ab8505(di->parent))
if (is_ab8540(di->parent))
di->curr_source = BTEMP_BATCTRL_CURR_SRC_60UA;
else if (is_ab9540(di->parent) || is_ab8505(di->parent))
di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA;
else
di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA;
@ -582,9 +605,14 @@ static int ab8500_btemp_id(struct ab8500_btemp *di)
* detected type is Type 1, else we use the 7uA source
*/
if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL &&
di->bm->batt_id == 1) {
if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
dev_dbg(di->dev, "Set BATCTRL current source to 16uA\n");
di->bm->batt_id == 1) {
if (is_ab8540(di->parent)) {
dev_dbg(di->dev,
"Set BATCTRL current source to 60uA\n");
di->curr_source = BTEMP_BATCTRL_CURR_SRC_60UA;
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
dev_dbg(di->dev,
"Set BATCTRL current source to 16uA\n");
di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA;
} else {
dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n");

270
drivers/power/ab8500_charger.c
View File

@ -57,7 +57,9 @@
#define MAIN_CH_INPUT_CURR_SHIFT 4
#define VBUS_IN_CURR_LIM_SHIFT 4
#define AB8540_VBUS_IN_CURR_LIM_SHIFT 2
#define AUTO_VBUS_IN_CURR_LIM_SHIFT 4
#define AB8540_AUTO_VBUS_IN_CURR_MASK 0x3F
#define VBUS_IN_CURR_LIM_RETRY_SET_TIME 30 /* seconds */
#define LED_INDICATOR_PWM_ENA 0x01
@ -82,6 +84,7 @@
#define AB8500_USB_LINK_STATUS 0x78
#define AB8505_USB_LINK_STATUS 0xF8
#define AB8500_STD_HOST_SUSP 0x18
#define USB_LINK_STATUS_SHIFT 3
/* Watchdog timeout constant */
#define WD_TIMER 0x30 /* 4min */
@ -751,8 +754,7 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di,
"VBUS has collapsed\n");
ret = -ENXIO;
break;
}
if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
} else {
dev_dbg(di->dev, "USB Type - Charging not allowed\n");
di->max_usb_in_curr.usb_type_max =
USB_CH_IP_CUR_LVL_0P05;
@ -807,30 +809,22 @@ static int ab8500_charger_read_usb_type(struct ab8500_charger *di)
dev_err(di->dev, "%s ab8500 read failed\n", __func__);
return ret;
}
if (is_ab8500(di->parent)) {
if (is_ab8500(di->parent))
ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
AB8500_USB_LINE_STAT_REG, &val);
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val);
} else {
dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
return -ENXIO;
}
AB8500_USB_LINE_STAT_REG, &val);
else
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val);
if (ret < 0) {
dev_err(di->dev, "%s ab8500 read failed\n", __func__);
return ret;
}
/* get the USB type */
if (is_ab8500(di->parent)) {
val = (val & AB8500_USB_LINK_STATUS) >> 3;
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
val = (val & AB8505_USB_LINK_STATUS) >> 3;
} else {
dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
return -ENXIO;
}
if (is_ab8500(di->parent))
val = (val & AB8500_USB_LINK_STATUS) >> USB_LINK_STATUS_SHIFT;
else
val = (val & AB8505_USB_LINK_STATUS) >> USB_LINK_STATUS_SHIFT;
ret = ab8500_charger_max_usb_curr(di,
(enum ab8500_charger_link_status) val);
@ -866,16 +860,12 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di)
return ret;
}
if (is_ab8500(di->parent)) {
if (is_ab8500(di->parent))
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINE_STAT_REG, &val);
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
else
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val);
} else {
dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
return -ENXIO;
}
if (ret < 0) {
dev_err(di->dev, "%s ab8500 read failed\n", __func__);
return ret;
@ -889,14 +879,12 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di)
*/
/* get the USB type */
if (is_ab8500(di->parent)) {
val = (val & AB8500_USB_LINK_STATUS) >> 3;
} else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
val = (val & AB8505_USB_LINK_STATUS) >> 3;
} else {
dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
return -ENXIO;
}
if (is_ab8500(di->parent))
val = (val & AB8500_USB_LINK_STATUS) >>
USB_LINK_STATUS_SHIFT;
else
val = (val & AB8505_USB_LINK_STATUS) >>
USB_LINK_STATUS_SHIFT;
if (val)
break;
}
@ -991,51 +979,6 @@ static int ab8500_charger_voltage_map[] = {
4600 ,
};
/*
* This array maps the raw hex value to charger current used by the AB8500
* Values taken from the UM0836
*/
static int ab8500_charger_current_map[] = {
100 ,
200 ,
300 ,
400 ,
500 ,
600 ,
700 ,
800 ,
900 ,
1000 ,
1100 ,
1200 ,
1300 ,
1400 ,
1500 ,
};
/*
* This array maps the raw hex value to VBUS input current used by the AB8500
* Values taken from the UM0836
*/
static int ab8500_charger_vbus_in_curr_map[] = {
USB_CH_IP_CUR_LVL_0P05,
USB_CH_IP_CUR_LVL_0P09,
USB_CH_IP_CUR_LVL_0P19,
USB_CH_IP_CUR_LVL_0P29,
USB_CH_IP_CUR_LVL_0P38,
USB_CH_IP_CUR_LVL_0P45,
USB_CH_IP_CUR_LVL_0P5,
USB_CH_IP_CUR_LVL_0P6,
USB_CH_IP_CUR_LVL_0P7,
USB_CH_IP_CUR_LVL_0P8,
USB_CH_IP_CUR_LVL_0P9,
USB_CH_IP_CUR_LVL_1P0,
USB_CH_IP_CUR_LVL_1P1,
USB_CH_IP_CUR_LVL_1P3,
USB_CH_IP_CUR_LVL_1P4,
USB_CH_IP_CUR_LVL_1P5,
};
static int ab8500_voltage_to_regval(int voltage)
{
int i;
@ -1057,41 +1000,41 @@ static int ab8500_voltage_to_regval(int voltage)
return -1;
}
static int ab8500_current_to_regval(int curr)
static int ab8500_current_to_regval(struct ab8500_charger *di, int curr)
{
int i;
if (curr < ab8500_charger_current_map[0])
if (curr < di->bm->chg_output_curr[0])
return 0;
for (i = 0; i < ARRAY_SIZE(ab8500_charger_current_map); i++) {
if (curr < ab8500_charger_current_map[i])
for (i = 0; i < di->bm->n_chg_out_curr; i++) {
if (curr < di->bm->chg_output_curr[i])
return i - 1;
}
/* If not last element, return error */
i = ARRAY_SIZE(ab8500_charger_current_map) - 1;
if (curr == ab8500_charger_current_map[i])
i = di->bm->n_chg_out_curr - 1;
if (curr == di->bm->chg_output_curr[i])
return i;
else
return -1;
}
static int ab8500_vbus_in_curr_to_regval(int curr)
static int ab8500_vbus_in_curr_to_regval(struct ab8500_charger *di, int curr)
{
int i;
if (curr < ab8500_charger_vbus_in_curr_map[0])
if (curr < di->bm->chg_input_curr[0])
return 0;
for (i = 0; i < ARRAY_SIZE(ab8500_charger_vbus_in_curr_map); i++) {
if (curr < ab8500_charger_vbus_in_curr_map[i])
for (i = 0; i < di->bm->n_chg_in_curr; i++) {
if (curr < di->bm->chg_input_curr[i])
return i - 1;
}
/* If not last element, return error */
i = ARRAY_SIZE(ab8500_charger_vbus_in_curr_map) - 1;
if (curr == ab8500_charger_vbus_in_curr_map[i])
i = di->bm->n_chg_in_curr - 1;
if (curr == di->bm->chg_input_curr[i])
return i;
else
return -1;
@ -1169,7 +1112,7 @@ static int ab8500_charger_set_current(struct ab8500_charger *di,
int ich, int reg)
{
int ret = 0;
int auto_curr_index, curr_index, prev_curr_index, shift_value, i;
int curr_index, prev_curr_index, shift_value, i;
u8 reg_value;
u32 step_udelay;
bool no_stepping = false;
@ -1187,39 +1130,27 @@ static int ab8500_charger_set_current(struct ab8500_charger *di,
case AB8500_MCH_IPT_CURLVL_REG:
shift_value = MAIN_CH_INPUT_CURR_SHIFT;
prev_curr_index = (reg_value >> shift_value);
curr_index = ab8500_current_to_regval(ich);
curr_index = ab8500_current_to_regval(di, ich);
step_udelay = STEP_UDELAY;
if (!di->ac.charger_connected)
no_stepping = true;
break;
case AB8500_USBCH_IPT_CRNTLVL_REG:
shift_value = VBUS_IN_CURR_LIM_SHIFT;
if (is_ab8540(di->parent))
shift_value = AB8540_VBUS_IN_CURR_LIM_SHIFT;
else
shift_value = VBUS_IN_CURR_LIM_SHIFT;
prev_curr_index = (reg_value >> shift_value);
curr_index = ab8500_vbus_in_curr_to_regval(ich);
curr_index = ab8500_vbus_in_curr_to_regval(di, ich);
step_udelay = STEP_UDELAY * 100;
ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,
AB8500_CH_USBCH_STAT2_REG, &reg_value);
if (ret < 0) {
dev_err(di->dev, "%s read failed\n", __func__);
goto exit_set_current;
}
auto_curr_index =
reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT;
dev_dbg(di->dev, "%s Auto VBUS curr is %d mA\n",
__func__,
ab8500_charger_vbus_in_curr_map[auto_curr_index]);
prev_curr_index = min(prev_curr_index, auto_curr_index);
if (!di->usb.charger_connected)
no_stepping = true;
break;
case AB8500_CH_OPT_CRNTLVL_REG:
shift_value = 0;
prev_curr_index = (reg_value >> shift_value);
curr_index = ab8500_current_to_regval(ich);
curr_index = ab8500_current_to_regval(di, ich);
step_udelay = STEP_UDELAY;
if (curr_index && (curr_index - prev_curr_index) > 1)
step_udelay *= 100;
@ -1459,8 +1390,8 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger,
/* Check if the requested voltage or current is valid */
volt_index = ab8500_voltage_to_regval(vset);
curr_index = ab8500_current_to_regval(iset);
input_curr_index = ab8500_current_to_regval(
curr_index = ab8500_current_to_regval(di, iset);
input_curr_index = ab8500_current_to_regval(di,
di->bm->chg_params->ac_curr_max);
if (volt_index < 0 || curr_index < 0 || input_curr_index < 0) {
dev_err(di->dev,
@ -1631,7 +1562,7 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger,
/* Check if the requested voltage or current is valid */
volt_index = ab8500_voltage_to_regval(vset);
curr_index = ab8500_current_to_regval(ich_out);
curr_index = ab8500_current_to_regval(di, ich_out);
if (volt_index < 0 || curr_index < 0) {
dev_err(di->dev,
"Charger voltage or current too high, "
@ -2396,18 +2327,21 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
else
dev_dbg(di->dev, "Error reading USB link status\n");
if (is_ab9540(di->parent) || is_ab8505(di->parent))
link_status = AB8505_USB_LINK_STATUS;
else
if (is_ab8500(di->parent))
link_status = AB8500_USB_LINK_STATUS;
else
link_status = AB8505_USB_LINK_STATUS;
if (detected_chargers & USB_PW_CONN) {
if (((val & link_status) >> 3) == USB_STAT_NOT_VALID_LINK &&
if (((val & link_status) >> USB_LINK_STATUS_SHIFT) ==
USB_STAT_NOT_VALID_LINK &&
di->invalid_charger_detect_state == 0) {
dev_dbg(di->dev, "Invalid charger detected, state= 0\n");
dev_dbg(di->dev,
"Invalid charger detected, state= 0\n");
/*Enable charger*/
abx500_mask_and_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_USBCH_CTRL1_REG, 0x01, 0x01);
AB8500_CHARGER, AB8500_USBCH_CTRL1_REG,
USB_CH_ENA, USB_CH_ENA);
/*Enable charger detection*/
abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB,
AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x01);
@ -2417,15 +2351,17 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
}
if (di->invalid_charger_detect_state == 1) {
dev_dbg(di->dev, "Invalid charger detected, state= 1\n");
dev_dbg(di->dev,
"Invalid charger detected, state= 1\n");
/*Stop charger detection*/
abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB,
AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x00);
/*Check link status*/
ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB,
AB8500_USB_LINE_STAT_REG, &val);
dev_dbg(di->dev, "USB link status= 0x%02x\n",
(val & link_status) >> 3);
(val & link_status) >> USB_LINK_STATUS_SHIFT);
di->invalid_charger_detect_state = 2;
}
} else {
@ -2741,7 +2677,7 @@ static void ab8500_charger_vbus_drop_end_work(struct work_struct *work)
{
struct ab8500_charger *di = container_of(work,
struct ab8500_charger, vbus_drop_end_work.work);
int ret;
int ret, curr;
u8 reg_value;
di->flags.vbus_drop_end = false;
@ -2749,32 +2685,41 @@ static void ab8500_charger_vbus_drop_end_work(struct work_struct *work)
/* Reset the drop counter */
abx500_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_CHARGER_CTRL, 0x01);
ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,
AB8500_CH_USBCH_STAT2_REG,
&reg_value);
if (is_ab8540(di->parent))
ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,
AB8540_CH_USBCH_STAT3_REG, &reg_value);
else
ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,
AB8500_CH_USBCH_STAT2_REG, &reg_value);
if (ret < 0) {
dev_err(di->dev, "%s ab8500 read failed\n", __func__);
} else {
int curr = ab8500_charger_vbus_in_curr_map[
dev_err(di->dev, "%s read failed\n", __func__);
return;
}
if (is_ab8540(di->parent))
curr = di->bm->chg_input_curr[
reg_value & AB8540_AUTO_VBUS_IN_CURR_MASK];
else
curr = di->bm->chg_input_curr[
reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT];
if (di->max_usb_in_curr.calculated_max != curr) {
/* USB source is collapsing */
di->max_usb_in_curr.calculated_max = curr;
dev_dbg(di->dev,
"VBUS input current limiting to %d mA\n",
di->max_usb_in_curr.calculated_max);
} else {
/*
* USB source can not give more than this amount.
* Taking more will collapse the source.
*/
di->max_usb_in_curr.set_max =
di->max_usb_in_curr.calculated_max;
dev_dbg(di->dev,
"VBUS input current limited to %d mA\n",
di->max_usb_in_curr.set_max);
return;
}
if (di->max_usb_in_curr.calculated_max != curr) {
/* USB source is collapsing */
di->max_usb_in_curr.calculated_max = curr;
dev_dbg(di->dev,
"VBUS input current limiting to %d mA\n",
di->max_usb_in_curr.calculated_max);
} else {
/*
* USB source can not give more than this amount.
* Taking more will collapse the source.
*/
di->max_usb_in_curr.set_max =
di->max_usb_in_curr.calculated_max;
dev_dbg(di->dev,
"VBUS input current limited to %d mA\n",
di->max_usb_in_curr.set_max);
}
if (di->usb.charger_connected)
@ -3134,9 +3079,14 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
goto out;
}
ret = abx500_set_register_interruptible(di->dev,
AB8500_CHARGER,
AB8500_CH_OPT_CRNTLVL_MAX_REG, CH_OP_CUR_LVL_1P6);
if (is_ab8540(di->parent))
ret = abx500_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_CH_OPT_CRNTLVL_MAX_REG,
CH_OP_CUR_LVL_2P);
else
ret = abx500_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_CH_OPT_CRNTLVL_MAX_REG,
CH_OP_CUR_LVL_1P6);
if (ret) {
dev_err(di->dev,
"failed to set CH_OPT_CRNTLVL_MAX_REG\n");
@ -3144,7 +3094,8 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
}
}
if (is_ab9540_2p0(di->parent) || is_ab8505_2p0(di->parent))
if (is_ab9540_2p0(di->parent) || is_ab9540_3p0(di->parent)
|| is_ab8505_2p0(di->parent) || is_ab8540(di->parent))
ret = abx500_mask_and_set_register_interruptible(di->dev,
AB8500_CHARGER,
AB8500_USBCH_CTRL2_REG,
@ -3250,7 +3201,8 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
AB8500_RTC_CTRL1_REG,
bup_vch_range | vbup33_vrtcn);
if (ret) {
dev_err(di->dev, "failed to setup backup battery charging\n");
dev_err(di->dev,
"failed to setup backup battery charging\n");
goto out;
}
}
@ -3267,14 +3219,16 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
AB8500_CHARGER, AB8540_USB_PP_MODE_REG,
BUS_VSYS_VOL_SELECT_MASK, BUS_VSYS_VOL_SELECT_3P6V);
if (ret) {
dev_err(di->dev, "failed to setup usb power path vsys voltage\n");
dev_err(di->dev,
"failed to setup usb power path vsys voltage\n");
goto out;
}
ret = abx500_mask_and_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8540_USB_PP_CHR_REG,
BUS_PP_PRECHG_CURRENT_MASK, 0);
if (ret) {
dev_err(di->dev, "failed to setup usb power path prechage current\n");
dev_err(di->dev,
"failed to setup usb power path prechage current\n");
goto out;
}
}
@ -3537,8 +3491,8 @@ static int ab8500_charger_probe(struct platform_device *pdev)
di->ac_chg.ops.update_curr = &ab8500_charger_update_charger_current;
di->ac_chg.max_out_volt = ab8500_charger_voltage_map[
ARRAY_SIZE(ab8500_charger_voltage_map) - 1];
di->ac_chg.max_out_curr = ab8500_charger_current_map[
ARRAY_SIZE(ab8500_charger_current_map) - 1];
di->ac_chg.max_out_curr =
di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1];
di->ac_chg.wdt_refresh = CHG_WD_INTERVAL;
di->ac_chg.enabled = di->bm->ac_enabled;
di->ac_chg.external = false;
@ -3566,8 +3520,8 @@ static int ab8500_charger_probe(struct platform_device *pdev)
di->usb_chg.ops.pre_chg_enable = &ab8540_charger_usb_pre_chg_enable;
di->usb_chg.max_out_volt = ab8500_charger_voltage_map[
ARRAY_SIZE(ab8500_charger_voltage_map) - 1];
di->usb_chg.max_out_curr = ab8500_charger_current_map[
ARRAY_SIZE(ab8500_charger_current_map) - 1];
di->usb_chg.max_out_curr =
di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1];
di->usb_chg.wdt_refresh = CHG_WD_INTERVAL;
di->usb_chg.enabled = di->bm->usb_enabled;
di->usb_chg.external = false;

10
include/linux/mfd/abx500.h
View File

@ -246,7 +246,11 @@ struct abx500_bm_charger_parameters {
* @interval_not_charging charge alg cycle period time when not charging (sec)
* @temp_hysteresis temperature hysteresis
* @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
* @maxi: maximization parameters
* @n_chg_out_curr number of elements in array chg_output_curr
* @n_chg_in_curr number of elements in array chg_input_curr
* @chg_output_curr charger output current level map
* @chg_input_curr charger input current level map
* @maxi maximization parameters
* @cap_levels capacity in percent for the different capacity levels
* @bat_type table of supported battery types
* @chg_params charger parameters
@ -281,6 +285,10 @@ struct abx500_bm_data {
int interval_not_charging;
int temp_hysteresis;
int gnd_lift_resistance;
int n_chg_out_curr;
int n_chg_in_curr;
int *chg_output_curr;
int *chg_input_curr;
const struct abx500_maxim_parameters *maxi;
const struct abx500_bm_capacity_levels *cap_levels;
struct abx500_battery_type *bat_type;

5
include/linux/mfd/abx500/ab8500-bm.h
View File

@ -33,7 +33,7 @@
#define AB8500_CH_STATUS2_REG 0x01
#define AB8500_CH_USBCH_STAT1_REG 0x02
#define AB8500_CH_USBCH_STAT2_REG 0x03
#define AB8500_CH_FSM_STAT_REG 0x04
#define AB8540_CH_USBCH_STAT3_REG 0x04
#define AB8500_CH_STAT_REG 0x05
/*
@ -157,6 +157,7 @@
#define CH_OP_CUR_LVL_1P4 0x0D
#define CH_OP_CUR_LVL_1P5 0x0E
#define CH_OP_CUR_LVL_1P6 0x0F
#define CH_OP_CUR_LVL_2P 0x3F
/* BTEMP High thermal limits */
#define BTEMP_HIGH_TH_57_0 0x00
@ -246,6 +247,8 @@ enum bup_vch_sel {
#define BAT_CTRL_20U_ENA 0x02
#define BAT_CTRL_18U_ENA 0x01
#define BAT_CTRL_16U_ENA 0x02
#define BAT_CTRL_60U_ENA 0x01
#define BAT_CTRL_120U_ENA 0x02
#define BAT_CTRL_CMP_ENA 0x04
#define FORCE_BAT_CTRL_CMP_HIGH 0x08
#define BAT_CTRL_PULL_UP_ENA 0x10