ab8500: Add devicetree support for fuelgauge

- This patch adds device tree support for fuelgauge driver
- optimize bm devices platform_data usage and of_probe(...)
  Note: of_probe() routine for battery managed devices is made
  common across all bm drivers.
- test status:
  - interrupt numbers assigned differs between legacy and FDT mode.

Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

6 files changed, 575 insertions, 70 deletions

diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 74dfd957015..696e3a960b3 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -38,7 +38,7 @@ obj-$(CONFIG_CHARGER_PCF50633)	+= pcf50633-charger.o
 obj-$(CONFIG_BATTERY_JZ4740)    += jz4740-battery.o
 obj-$(CONFIG_BATTERY_INTEL_MID) += intel_mid_battery.o
 obj-$(CONFIG_BATTERY_RX51)      += rx51_battery.o
-obj-$(CONFIG_AB8500_BM)         += ab8500_charger.o ab8500_btemp.o ab8500_fg.o abx500_chargalg.o
+obj-$(CONFIG_AB8500_BM)         += ab8500_bmdata.o ab8500_charger.o ab8500_btemp.o ab8500_fg.o abx500_chargalg.o
 obj-$(CONFIG_CHARGER_ISP1704)   += isp1704_charger.o
 obj-$(CONFIG_CHARGER_MAX8903)   += max8903_charger.o
 obj-$(CONFIG_CHARGER_TWL4030)   += twl4030_charger.o
diff --git a/drivers/power/ab8500_bmdata.c b/drivers/power/ab8500_bmdata.c
new file mode 100644
index 00000000000..e7639b6659f
--- /dev/null
+++ b/drivers/power/ab8500_bmdata.c
@@ -0,0 +1,521 @@
+#include <linux/export.h>
+#include <linux/power_supply.h>
+#include <linux/of.h>
+#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-bm.h>
+
+/*
+ * These are the defined batteries that uses a NTC and ID resistor placed
+ * inside of the battery pack.
+ * Note that the res_to_temp table must be strictly sorted by falling resistance
+ * values to work.
+ */
+static struct abx500_res_to_temp temp_tbl_A_thermistor[] = {
+        {-5, 53407},
+        { 0, 48594},
+        { 5, 43804},
+        {10, 39188},
+        {15, 34870},
+        {20, 30933},
+        {25, 27422},
+        {30, 24347},
+        {35, 21694},
+        {40, 19431},
+        {45, 17517},
+        {50, 15908},
+        {55, 14561},
+        {60, 13437},
+        {65, 12500},
+};
+
+static struct abx500_res_to_temp temp_tbl_B_thermistor[] = {
+        {-5, 165418},
+        { 0, 159024},
+        { 5, 151921},
+        {10, 144300},
+        {15, 136424},
+        {20, 128565},
+        {25, 120978},
+        {30, 113875},
+        {35, 107397},
+        {40, 101629},
+        {45,  96592},
+        {50,  92253},
+        {55,  88569},
+        {60,  85461},
+        {65,  82869},
+};
+
+static struct abx500_v_to_cap cap_tbl_A_thermistor[] = {
+        {4171,  100},
+        {4114,   95},
+        {4009,   83},
+        {3947,   74},
+        {3907,   67},
+        {3863,   59},
+        {3830,   56},
+        {3813,   53},
+        {3791,   46},
+        {3771,   33},
+        {3754,   25},
+        {3735,   20},
+        {3717,   17},
+        {3681,   13},
+        {3664,    8},
+        {3651,    6},
+        {3635,    5},
+        {3560,    3},
+        {3408,    1},
+        {3247,    0},
+};
+
+static struct abx500_v_to_cap cap_tbl_B_thermistor[] = {
+        {4161,  100},
+        {4124,   98},
+        {4044,   90},
+        {4003,   85},
+        {3966,   80},
+        {3933,   75},
+        {3888,   67},
+        {3849,   60},
+        {3813,   55},
+        {3787,   47},
+        {3772,   30},
+        {3751,   25},
+        {3718,   20},
+        {3681,   16},
+        {3660,   14},
+        {3589,   10},
+        {3546,    7},
+        {3495,    4},
+        {3404,    2},
+        {3250,    0},
+};
+
+static struct abx500_v_to_cap cap_tbl[] = {
+        {4186,  100},
+        {4163,   99},
+        {4114,   95},
+        {4068,   90},
+        {3990,   80},
+        {3926,   70},
+        {3898,   65},
+        {3866,   60},
+        {3833,   55},
+        {3812,   50},
+        {3787,   40},
+        {3768,   30},
+        {3747,   25},
+        {3730,   20},
+        {3705,   15},
+        {3699,   14},
+        {3684,   12},
+        {3672,    9},
+        {3657,    7},
+        {3638,    6},
+        {3556,    4},
+        {3424,    2},
+        {3317,    1},
+        {3094,    0},
+};
+
+/*
+ * Note that the res_to_temp table must be strictly sorted by falling
+ * resistance values to work.
+ */
+static struct abx500_res_to_temp temp_tbl[] = {
+        {-5, 214834},
+        { 0, 162943},
+        { 5, 124820},
+        {10,  96520},
+        {15,  75306},
+        {20,  59254},
+        {25,  47000},
+        {30,  37566},
+        {35,  30245},
+        {40,  24520},
+        {45,  20010},
+        {50,  16432},
+        {55,  13576},
+        {60,  11280},
+        {65,   9425},
+};
+
+/*
+ * Note that the batres_vs_temp table must be strictly sorted by falling
+ * temperature values to work.
+ */
+static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = {
+        { 40, 120},
+        { 30, 135},
+        { 20, 165},
+        { 10, 230},
+        { 00, 325},
+        {-10, 445},
+        {-20, 595},
+};
+
+/*
+ * Note that the batres_vs_temp table must be strictly sorted by falling
+ * temperature values to work.
+ */
+static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = {
+        { 60, 300},
+        { 30, 300},
+        { 20, 300},
+        { 10, 300},
+        { 00, 300},
+        {-10, 300},
+        {-20, 300},
+};
+
+/* battery resistance table for LI ION 9100 battery */
+static struct batres_vs_temp temp_to_batres_tbl_9100[] = {
+        { 60, 180},
+        { 30, 180},
+        { 20, 180},
+        { 10, 180},
+        { 00, 180},
+        {-10, 180},
+        {-20, 180},
+};
+
+static struct abx500_battery_type bat_type_thermistor[] = {
+[BATTERY_UNKNOWN] = {
+        /* First element always represent the UNKNOWN battery */
+        .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
+        .resis_high = 0,
+        .resis_low = 0,
+        .battery_resistance = 300,
+        .charge_full_design = 612,
+        .nominal_voltage = 3700,
+        .termination_vol = 4050,
+        .termination_curr = 200,
+        .recharge_vol = 3990,
+        .normal_cur_lvl = 400,
+        .normal_vol_lvl = 4100,
+        .maint_a_cur_lvl = 400,
+        .maint_a_vol_lvl = 4050,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 400,
+        .maint_b_vol_lvl = 4000,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
+        .r_to_t_tbl = temp_tbl,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
+        .v_to_cap_tbl = cap_tbl,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+},
+{
+        .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
+        .resis_high = 53407,
+        .resis_low = 12500,
+        .battery_resistance = 300,
+        .charge_full_design = 900,
+        .nominal_voltage = 3600,
+        .termination_vol = 4150,
+        .termination_curr = 80,
+        .recharge_vol = 4130,
+        .normal_cur_lvl = 700,
+        .normal_vol_lvl = 4200,
+        .maint_a_cur_lvl = 600,
+        .maint_a_vol_lvl = 4150,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 600,
+        .maint_b_vol_lvl = 4100,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_A_thermistor),
+        .r_to_t_tbl = temp_tbl_A_thermistor,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_A_thermistor),
+        .v_to_cap_tbl = cap_tbl_A_thermistor,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+
+},
+{
+        .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
+        .resis_high = 165418,
+        .resis_low = 82869,
+        .battery_resistance = 300,
+        .charge_full_design = 900,
+        .nominal_voltage = 3600,
+        .termination_vol = 4150,
+        .termination_curr = 80,
+        .recharge_vol = 4130,
+        .normal_cur_lvl = 700,
+        .normal_vol_lvl = 4200,
+        .maint_a_cur_lvl = 600,
+        .maint_a_vol_lvl = 4150,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 600,
+        .maint_b_vol_lvl = 4100,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_B_thermistor),
+        .r_to_t_tbl = temp_tbl_B_thermistor,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_B_thermistor),
+        .v_to_cap_tbl = cap_tbl_B_thermistor,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+},
+};
+
+static struct abx500_battery_type bat_type_ext_thermistor[] = {
+[BATTERY_UNKNOWN] = {
+        /* First element always represent the UNKNOWN battery */
+        .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
+        .resis_high = 0,
+        .resis_low = 0,
+        .battery_resistance = 300,
+        .charge_full_design = 612,
+        .nominal_voltage = 3700,
+        .termination_vol = 4050,
+        .termination_curr = 200,
+        .recharge_vol = 3990,
+        .normal_cur_lvl = 400,
+        .normal_vol_lvl = 4100,
+        .maint_a_cur_lvl = 400,
+        .maint_a_vol_lvl = 4050,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 400,
+        .maint_b_vol_lvl = 4000,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
+        .r_to_t_tbl = temp_tbl,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
+        .v_to_cap_tbl = cap_tbl,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+},
+/*
+ * These are the batteries that doesn't have an internal NTC resistor to measure
+ * its temperature. The temperature in this case is measure with a NTC placed
+ * near the battery but on the PCB.
+ */
+{
+        .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
+        .resis_high = 76000,
+        .resis_low = 53000,
+        .battery_resistance = 300,
+        .charge_full_design = 900,
+        .nominal_voltage = 3700,
+        .termination_vol = 4150,
+        .termination_curr = 100,
+        .recharge_vol = 4130,
+        .normal_cur_lvl = 700,
+        .normal_vol_lvl = 4200,
+        .maint_a_cur_lvl = 600,
+        .maint_a_vol_lvl = 4150,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 600,
+        .maint_b_vol_lvl = 4100,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
+        .r_to_t_tbl = temp_tbl,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
+        .v_to_cap_tbl = cap_tbl,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+},
+{
+        .name = POWER_SUPPLY_TECHNOLOGY_LION,
+        .resis_high = 30000,
+        .resis_low = 10000,
+        .battery_resistance = 300,
+        .charge_full_design = 950,
+        .nominal_voltage = 3700,
+        .termination_vol = 4150,
+        .termination_curr = 100,
+        .recharge_vol = 4130,
+        .normal_cur_lvl = 700,
+        .normal_vol_lvl = 4200,
+        .maint_a_cur_lvl = 600,
+        .maint_a_vol_lvl = 4150,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 600,
+        .maint_b_vol_lvl = 4100,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
+        .r_to_t_tbl = temp_tbl,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
+        .v_to_cap_tbl = cap_tbl,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+},
+{
+        .name = POWER_SUPPLY_TECHNOLOGY_LION,
+        .resis_high = 95000,
+        .resis_low = 76001,
+        .battery_resistance = 300,
+        .charge_full_design = 950,
+        .nominal_voltage = 3700,
+        .termination_vol = 4150,
+        .termination_curr = 100,
+        .recharge_vol = 4130,
+        .normal_cur_lvl = 700,
+        .normal_vol_lvl = 4200,
+        .maint_a_cur_lvl = 600,
+        .maint_a_vol_lvl = 4150,
+        .maint_a_chg_timer_h = 60,
+        .maint_b_cur_lvl = 600,
+        .maint_b_vol_lvl = 4100,
+        .maint_b_chg_timer_h = 200,
+        .low_high_cur_lvl = 300,
+        .low_high_vol_lvl = 4000,
+        .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
+        .r_to_t_tbl = temp_tbl,
+        .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
+        .v_to_cap_tbl = cap_tbl,
+        .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
+        .batres_tbl = temp_to_batres_tbl_thermistor,
+},
+};
+
+static const struct abx500_bm_capacity_levels cap_levels = {
+        .critical       = 2,
+        .low            = 10,
+        .normal         = 70,
+        .high           = 95,
+        .full           = 100,
+};
+
+static const struct abx500_fg_parameters fg = {
+        .recovery_sleep_timer = 10,
+        .recovery_total_time = 100,
+        .init_timer = 1,
+        .init_discard_time = 5,
+        .init_total_time = 40,
+        .high_curr_time = 60,
+        .accu_charging = 30,
+        .accu_high_curr = 30,
+        .high_curr_threshold = 50,
+        .lowbat_threshold = 3100,
+        .battok_falling_th_sel0 = 2860,
+        .battok_raising_th_sel1 = 2860,
+        .user_cap_limit = 15,
+        .maint_thres = 97,
+};
+
+static const struct abx500_maxim_parameters maxi_params = {
+        .ena_maxi = true,
+        .chg_curr = 910,
+        .wait_cycles = 10,
+        .charger_curr_step = 100,
+};
+
+static const struct abx500_bm_charger_parameters chg = {
+        .usb_volt_max           = 5500,
+        .usb_curr_max           = 1500,
+        .ac_volt_max            = 7500,
+        .ac_curr_max            = 1500,
+};
+
+struct abx500_bm_data ab8500_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,
+        .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               = 3,
+        .batt_id                = 0,
+        .interval_charging      = 5,
+        .interval_not_charging  = 120,
+        .temp_hysteresis        = 3,
+        .gnd_lift_resistance    = 34,
+        .maxi                   = &maxi_params,
+        .chg_params             = &chg,
+        .fg_params              = &fg,
+};
+
+int __devinit
+bmdevs_of_probe(struct device *dev,
+                struct device_node *np,
+                struct abx500_bm_data **battery)
+{
+        struct  abx500_battery_type *btype;
+        struct  device_node *np_bat_supply;
+        struct  abx500_bm_data *bat;
+        const char *btech;
+        char bat_tech[8];
+        int i, thermistor;
+
+        *battery = &ab8500_bm_data;
+
+        /* get phandle to 'battery-info' node */
+        np_bat_supply = of_parse_phandle(np, "battery", 0);
+        if (!np_bat_supply) {
+                dev_err(dev, "missing property battery\n");
+                return -EINVAL;
+        }
+        if (of_property_read_bool(np_bat_supply,
+                        "thermistor-on-batctrl"))
+                thermistor = NTC_INTERNAL;
+        else
+                thermistor = NTC_EXTERNAL;
+
+        bat = *battery;
+        if (thermistor == NTC_EXTERNAL) {
+                bat->n_btypes  = 4;
+                bat->bat_type  = bat_type_ext_thermistor;
+                bat->adc_therm = ABx500_ADC_THERM_BATTEMP;
+        }
+        btech = of_get_property(np_bat_supply,
+                "stericsson,battery-type", NULL);
+        if (!btech) {
+                dev_warn(dev, "missing property battery-name/type\n");
+                strcpy(bat_tech, "UNKNOWN");
+        } else {
+                strcpy(bat_tech, btech);
+        }
+
+        if (strncmp(bat_tech, "LION", 4) == 0) {
+                bat->no_maintenance  = true;
+                bat->chg_unknown_bat = true;
+                bat->bat_type[BATTERY_UNKNOWN].charge_full_design = 2600;
+                bat->bat_type[BATTERY_UNKNOWN].termination_vol    = 4150;
+                bat->bat_type[BATTERY_UNKNOWN].recharge_vol       = 4130;
+                bat->bat_type[BATTERY_UNKNOWN].normal_cur_lvl     = 520;
+                bat->bat_type[BATTERY_UNKNOWN].normal_vol_lvl     = 4200;
+        }
+        /* select the battery resolution table */
+        for (i = 0; i < bat->n_btypes; ++i) {
+                btype = (bat->bat_type + i);
+                if (thermistor == NTC_EXTERNAL) {
+                        btype->batres_tbl =
+                                temp_to_batres_tbl_ext_thermistor;
+                } else if (strncmp(bat_tech, "LION", 4) == 0) {
+                        btype->batres_tbl =
+                                temp_to_batres_tbl_9100;
+                } else {
+                        btype->batres_tbl =
+                                temp_to_batres_tbl_thermistor;
+                }
+        }
+        of_node_put(np_bat_supply);
+        return 0;
+}
diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index e3b6395b20d..abc2abc16a5 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -93,7 +93,7 @@ struct ab8500_btemp {
         struct ab8500 *parent;
         struct ab8500_gpadc *gpadc;
         struct ab8500_fg *fg;
-        struct abx500_btemp_platform_data *pdata;
+        struct abx500_bmdevs_plat_data *pdata;
         struct abx500_bm_data *bat;
         struct power_supply btemp_psy;
         struct ab8500_btemp_events events;
@@ -962,10 +962,10 @@ static int __devexit ab8500_btemp_remove(struct platform_device *pdev)
 
 static int __devinit ab8500_btemp_probe(struct platform_device *pdev)
 {
+        struct abx500_bmdevs_plat_data *plat_data = pdev->dev.platform_data;
+        struct ab8500_btemp *di;
         int irq, i, ret = 0;
         u8 val;
-        struct abx500_bm_plat_data *plat_data = pdev->dev.platform_data;
-        struct ab8500_btemp *di;
 
         if (!plat_data) {
                 dev_err(&pdev->dev, "No platform data\n");
@@ -982,21 +982,13 @@ static int __devinit ab8500_btemp_probe(struct platform_device *pdev)
         di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
 
         /* get btemp specific platform data */
-        di->pdata = plat_data->btemp;
+        di->pdata = plat_data;
         if (!di->pdata) {
                 dev_err(di->dev, "no btemp platform data supplied\n");
                 ret = -EINVAL;
                 goto free_device_info;
         }
 
-        /* get battery specific platform data */
-        di->bat = plat_data->battery;
-        if (!di->bat) {
-                dev_err(di->dev, "no battery platform data supplied\n");
-                ret = -EINVAL;
-                goto free_device_info;
-        }
-
         /* BTEMP supply */
         di->btemp_psy.name = "ab8500_btemp";
         di->btemp_psy.type = POWER_SUPPLY_TYPE_BATTERY;
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 26ff759e222..723edb47b1d 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -220,7 +220,7 @@ struct ab8500_charger {
         bool autopower;
         struct ab8500 *parent;
         struct ab8500_gpadc *gpadc;
-        struct abx500_charger_platform_data *pdata;
+        struct abx500_bmdevs_plat_data *pdata;
         struct abx500_bm_data *bat;
         struct ab8500_charger_event_flags flags;
         struct ab8500_charger_usb_state usb_state;
@@ -2533,9 +2533,9 @@ static int __devexit ab8500_charger_remove(struct platform_device *pdev)
 
 static int __devinit ab8500_charger_probe(struct platform_device *pdev)
 {
-        int irq, i, charger_status, ret = 0;
-        struct abx500_bm_plat_data *plat_data = pdev->dev.platform_data;
+        struct abx500_bmdevs_plat_data *plat_data = pdev->dev.platform_data;
         struct ab8500_charger *di;
+        int irq, i, charger_status, ret = 0;
 
         if (!plat_data) {
                 dev_err(&pdev->dev, "No platform data\n");
@@ -2555,21 +2555,13 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
         spin_lock_init(&di->usb_state.usb_lock);
 
         /* get charger specific platform data */
-        di->pdata = plat_data->charger;
+        di->pdata = plat_data;
         if (!di->pdata) {
                 dev_err(di->dev, "no charger platform data supplied\n");
                 ret = -EINVAL;
                 goto free_device_info;
         }
 
-        /* get battery specific platform data */
-        di->bat = plat_data->battery;
-        if (!di->bat) {
-                dev_err(di->dev, "no battery platform data supplied\n");
-                ret = -EINVAL;
-                goto free_device_info;
-        }
-
         di->autopower = false;
 
         /* AC supply */
diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c
index 2db8cc25439..ed62ef788eb 100644
--- a/drivers/power/ab8500_fg.c
+++ b/drivers/power/ab8500_fg.c
@@ -22,15 +22,16 @@
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
 #include <linux/kobject.h>
-#include <linux/mfd/abx500/ab8500.h>
-#include <linux/mfd/abx500.h>
 #include <linux/slab.h>
-#include <linux/mfd/abx500/ab8500-bm.h>
 #include <linux/delay.h>
-#include <linux/mfd/abx500/ab8500-gpadc.h>
-#include <linux/mfd/abx500.h>
 #include <linux/time.h>
+#include <linux/of.h>
 #include <linux/completion.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-bm.h>
+#include <linux/mfd/abx500/ab8500-gpadc.h>
 
 #define MILLI_TO_MICRO                  1000
 #define FG_LSB_IN_MA                    1627
@@ -172,7 +173,6 @@ struct inst_curr_result_list {
  * @avg_cap:            Average capacity filter
  * @parent:             Pointer to the struct ab8500
  * @gpadc:              Pointer to the struct gpadc
- * @pdata:              Pointer to the abx500_fg platform data
  * @bat:                Pointer to the abx500_bm platform data
  * @fg_psy:             Structure that holds the FG specific battery properties
  * @fg_wq:              Work queue for running the FG algorithm
@@ -212,7 +212,6 @@ struct ab8500_fg {
         struct ab8500_fg_avg_cap avg_cap;
         struct ab8500 *parent;
         struct ab8500_gpadc *gpadc;
-        struct abx500_fg_platform_data *pdata;
         struct abx500_bm_data *bat;
         struct power_supply fg_psy;
         struct workqueue_struct *fg_wq;
@@ -2429,7 +2428,6 @@ static int __devexit ab8500_fg_remove(struct platform_device *pdev)
         flush_scheduled_work();
         power_supply_unregister(&di->fg_psy);
         platform_set_drvdata(pdev, NULL);
-        kfree(di);
         return ret;
 }
 
@@ -2442,21 +2440,39 @@ static struct ab8500_fg_interrupts ab8500_fg_irq[] = {
         {"CCEOC", ab8500_fg_cc_data_end_handler},
 };
 
+static char *supply_interface[] = {
+        "ab8500_chargalg",
+        "ab8500_usb",
+};
+
 static int __devinit ab8500_fg_probe(struct platform_device *pdev)
 {
+        struct device_node *np = pdev->dev.of_node;
+        struct ab8500_fg *di;
         int i, irq;
         int ret = 0;
-        struct abx500_bm_plat_data *plat_data = pdev->dev.platform_data;
-        struct ab8500_fg *di;
-
-        if (!plat_data) {
-                dev_err(&pdev->dev, "No platform data\n");
-                return -EINVAL;
-        }
 
-        di = kzalloc(sizeof(*di), GFP_KERNEL);
-        if (!di)
+        di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
+        if (!di) {
+                dev_err(&pdev->dev, "%s no mem for ab8500_fg\n", __func__);
                 return -ENOMEM;
+        }
+        di->bat = pdev->mfd_cell->platform_data;
+        if (!di->bat) {
+                if (np) {
+                        ret = bmdevs_of_probe(&pdev->dev, np, &di->bat);
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                        "failed to get battery information\n");
+                                return ret;
+                        }
+                } else {
+                        dev_err(&pdev->dev, "missing dt node for ab8500_fg\n");
+                        return -EINVAL;
+                }
+        } else {
+                dev_info(&pdev->dev, "falling back to legacy platform data\n");
+        }
 
         mutex_init(&di->cc_lock);
 
@@ -2465,29 +2481,13 @@ static int __devinit ab8500_fg_probe(struct platform_device *pdev)
         di->parent = dev_get_drvdata(pdev->dev.parent);
         di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
 
-        /* get fg specific platform data */
-        di->pdata = plat_data->fg;
-        if (!di->pdata) {
-                dev_err(di->dev, "no fg platform data supplied\n");
-                ret = -EINVAL;
-                goto free_device_info;
-        }
-
-        /* get battery specific platform data */
-        di->bat = plat_data->battery;
-        if (!di->bat) {
-                dev_err(di->dev, "no battery platform data supplied\n");
-                ret = -EINVAL;
-                goto free_device_info;
-        }
-
         di->fg_psy.name = "ab8500_fg";
         di->fg_psy.type = POWER_SUPPLY_TYPE_BATTERY;
         di->fg_psy.properties = ab8500_fg_props;
         di->fg_psy.num_properties = ARRAY_SIZE(ab8500_fg_props);
         di->fg_psy.get_property = ab8500_fg_get_property;
-        di->fg_psy.supplied_to = di->pdata->supplied_to;
-        di->fg_psy.num_supplicants = di->pdata->num_supplicants;
+        di->fg_psy.supplied_to = supply_interface;
+        di->fg_psy.num_supplicants = ARRAY_SIZE(supply_interface),
         di->fg_psy.external_power_changed = ab8500_fg_external_power_changed;
 
         di->bat_cap.max_mah_design = MILLI_TO_MICRO *
@@ -2506,8 +2506,7 @@ static int __devinit ab8500_fg_probe(struct platform_device *pdev)
         di->fg_wq = create_singlethread_workqueue("ab8500_fg_wq");
         if (di->fg_wq == NULL) {
                 dev_err(di->dev, "failed to create work queue\n");
-                ret = -ENOMEM;
-                goto free_device_info;
+                return -ENOMEM;
         }
 
         /* Init work for running the fg algorithm instantly */
@@ -2606,12 +2605,14 @@ free_irq:
         }
 free_inst_curr_wq:
         destroy_workqueue(di->fg_wq);
-free_device_info:
-        kfree(di);
-
         return ret;
 }
 
+static const struct of_device_id ab8500_fg_match[] = {
+        { .compatible = "stericsson,ab8500-fg", },
+        { },
+};
+
 static struct platform_driver ab8500_fg_driver = {
         .probe = ab8500_fg_probe,
         .remove = __devexit_p(ab8500_fg_remove),
@@ -2620,6 +2621,7 @@ static struct platform_driver ab8500_fg_driver = {
         .driver = {
                 .name = "ab8500-fg",
                 .owner = THIS_MODULE,
+                .of_match_table = ab8500_fg_match,
         },
 };
 
diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c
index 4d302803ffc..758ea76de2f 100644
--- a/drivers/power/abx500_chargalg.c
+++ b/drivers/power/abx500_chargalg.c
@@ -231,7 +231,7 @@ struct abx500_chargalg {
         struct abx500_chargalg_charger_info chg_info;
         struct abx500_chargalg_battery_data batt_data;
         struct abx500_chargalg_suspension_status susp_status;
-        struct abx500_chargalg_platform_data *pdata;
+        struct abx500_bmdevs_plat_data *pdata;
         struct abx500_bm_data *bat;
         struct power_supply chargalg_psy;
         struct ux500_charger *ac_chg;
@@ -1802,7 +1802,7 @@ static int __devexit abx500_chargalg_remove(struct platform_device *pdev)
 
 static int __devinit abx500_chargalg_probe(struct platform_device *pdev)
 {
-        struct abx500_bm_plat_data *plat_data;
+        struct abx500_bmdevs_plat_data *plat_data;
         int ret = 0;
 
         struct abx500_chargalg *di =
@@ -1812,10 +1812,8 @@ static int __devinit abx500_chargalg_probe(struct platform_device *pdev)
 
         /* get device struct */
         di->dev = &pdev->dev;
-
         plat_data = pdev->dev.platform_data;
-        di->pdata = plat_data->chargalg;
-        di->bat = plat_data->battery;
+        di->pdata = plat_data;
 
         /* chargalg supply */
         di->chargalg_psy.name = "abx500_chargalg";