Merge tag 'for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
"Power-supply core:

- introduce "No Battery" health status

- use library interpolation

- add power_supply_battery_info documentation

- migrate power_supply_battery_info to be fully heap allocated making
it more obvious that it needs to be free'd manually

Drivers:

- max77976-charger: new driver

- qcom-smbb: add pm8226 charger support

- bq25890-charger: support battery temperature readings

- ab8500: continue migrating towards using standard core APIs"

* tag 'for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (28 commits)
power: supply_core: Pass pointer to battery info
power: supply: ab8500: Fix the error handling path of ab8500_charger_probe()
power: reset: mt6397: Check for null res pointer
power: bq25890: add POWER_SUPPLY_PROP_TEMP
power: supply: qcom_smbb: support pm8226
dt-bindings: power: supply: pm8941-charger: add pm8226
power: supply: ab8500: Standardize capacity lookup
power: supply: ab8500: Standardize temp res lookup
power: supply: ab8500: Standardize CV voltage
power: supply: ab8500: Standardize CC current
power: supply: ab8500: Make recharge capacity a constant
power: supply: ab8500: Standardize termination current
power: supply: ab8500: Standardize internal resistance
power: supply: ab8500_fg: Init battery data in bind()
power: supply: ab8500: Standardize voltages
power: supply: ab8500: Standardize technology
power: supply: ab8500: Standardize design capacity
power: supply: ab8500: Use only one battery type
power: supply: ab8500: Drop unused battery types
power: supply: ab8500: Standardize operating temperature
...

Documentation/ABI/testing/sysfs-class-power

···
 			      "Over voltage", "Unspecified failure", "Cold",
 			      "Watchdog timer expire", "Safety timer expire",
 			      "Over current", "Calibration required", "Warm",
-			      "Cool", "Hot"
+			      "Cool", "Hot", "No battery"
 
 What:		/sys/class/power_supply/<supply_name>/precharge_current
 Date:		June 2017

Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt

···
-Driver a GPIO line that can be used to turn the power off.
-
-The driver supports both level triggered and edge triggered power off.
-At driver load time, the driver will request the given gpio line and
-install a handler to power off the system. If the optional properties
-'input' is not found, the GPIO line will be driven in the inactive
-state. Otherwise its configured as an input.
-
-When the power-off handler is called, the gpio is configured as an
-output, and drive active, so triggering a level triggered power off
-condition. This will also cause an inactive->active edge condition, so
-triggering positive edge triggered power off. After a delay of 100ms,
-the GPIO is set to inactive, thus causing an active->inactive edge,
-triggering negative edge triggered power off. After another 100ms
-delay the GPIO is driver active again. If the power is still on and
-the CPU still running after a 3000ms delay, a WARN_ON(1) is emitted.
-
-Required properties:
-- compatible : should be "gpio-poweroff".
-- gpios : The GPIO to set high/low, see "gpios property" in
-  Documentation/devicetree/bindings/gpio/gpio.txt. If the pin should be
-  low to power down the board set it to "Active Low", otherwise set
-  gpio to "Active High".
-
-Optional properties:
-- input : Initially configure the GPIO line as an input. Only reconfigure
-  it to an output when the power-off handler is called. If this optional
-  property is not specified, the GPIO is initialized as an output in its
-  inactive state.
-- active-delay-ms: Delay (default 100) to wait after driving gpio active
-- inactive-delay-ms: Delay (default 100) to wait after driving gpio inactive
-- timeout-ms: Time to wait before asserting a WARN_ON(1). If nothing is
-              specified, 3000 ms is used.
-
-Examples:
-
-gpio-poweroff {
-	compatible = "gpio-poweroff";
-	gpios = <&gpio 4 0>;
-	timeout-ms = <3000>;
-};

Documentation/devicetree/bindings/power/reset/gpio-poweroff.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/gpio-poweroff.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO controlled power off
+
+maintainers:
+  - Sebastian Reichel <[e-mail]>
+
+description: >
+  System power off support via a GPIO line. When a shutdown is
+  executed the operating system is expected to switch the GPIO
+  from inactive to active. After a delay (active-delay-ms) it
+  is expected to be switched back to inactive. After another
+  delay (inactive-delay-ms) it is configured as active again.
+  Finally the operating system assumes the power off failed if
+  the system is still running after waiting some time (timeout-ms).
+
+properties:
+  compatible:
+    const: gpio-poweroff
+
+  gpios:
+    maxItems: 1
+
+  input:
+    type: boolean
+    description: >
+      Initially configure the GPIO line as an input. Only reconfigure
+      it to an output when the power-off sequence is initiated. If this optional
+      property is not specified, the GPIO is initialized as an output in its inactive state.
+
+  active-delay-ms:
+    default: 100
+    description: Delay to wait after driving gpio active
+
+  inactive-delay-ms:
+    default: 100
+    description: Delay to wait after driving gpio inactive
+
+  timeout-ms:
+    default: 3000
+    description: Time to wait before assuming the power off sequence failed.
+
+required:
+  - compatible
+  - gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    gpio-poweroff {
+        compatible = "gpio-poweroff";
+        gpios = <&gpio 4 0>;
+        timeout-ms = <3000>;
+    };

Documentation/devicetree/bindings/power/supply/maxim,max77976.yaml

···
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/maxim,max77976.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX77976 Battery charger
+
+maintainers:
+  - Luca Ceresoli <[e-mail]>
+
+description: |
+  The Maxim MAX77976 is a 19Vin / 5.5A, 1-Cell Li+ battery charger
+  configured via I2C.
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    const: maxim,max77976
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      charger@6b {
+        compatible = "maxim,max77976";
+        reg = <0x6b>;
+      };
+    };
+
+...

Documentation/devicetree/bindings/power/supply/qcom,pm8941-charger.yaml

···
 
 properties:
   compatible:
-    const: qcom,pm8941-charger
+    enum:
+      - qcom,pm8226-charger
+      - qcom,pm8941-charger
 
   reg:
     maxItems: 1

MAINTAINERS

···
 F:	drivers/regulator/max77802-regulator.c
 F:	include/dt-bindings/*/*max77802.h
 
+MAXIM MAX77976 BATTERY CHARGER
+M:	Luca Ceresoli <[e-mail]>
+S:	Supported
+F:	Documentation/devicetree/bindings/power/supply/maxim,max77976.yaml
+F:	drivers/power/supply/max77976_charger.c
+
 MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS
 M:	Krzysztof Kozlowski <[e-mail]>
 M:	Bartlomiej Zolnierkiewicz <[e-mail]>

drivers/power/reset/mt6323-poweroff.c

···
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
 	pwrc->base = res->start;
 	pwrc->regmap = mt6397_chip->regmap;
 	pwrc->dev = &pdev->dev;

drivers/power/supply/Kconfig

···
 	help
 	  Say Y to enable support for the Maxim MAX77693 battery charger.
 
+config CHARGER_MAX77976
+	tristate "Maxim MAX77976 battery charger driver"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  The Maxim MAX77976 is a 19 Vin, 5.5A 1-Cell Li+ Battery Charger
+	  USB OTG support. It has an I2C interface for configuration.
+
+	  Say Y to enable support for the Maxim MAX77976 battery charger.
+	  This driver can also be built as a module. If so, the module will be
+	  called max77976_charger.
+
 config CHARGER_MAX8997
 	tristate "Maxim MAX8997/MAX8966 PMIC battery charger driver"
 	depends on MFD_MAX8997 && REGULATOR_MAX8997

drivers/power/supply/Makefile

···
 obj-$(CONFIG_CHARGER_DETECTOR_MAX14656)	+= max14656_charger_detector.o
 obj-$(CONFIG_CHARGER_MAX77650)	+= max77650-charger.o
 obj-$(CONFIG_CHARGER_MAX77693)	+= max77693_charger.o
+obj-$(CONFIG_CHARGER_MAX77976)	+= max77976_charger.o
 obj-$(CONFIG_CHARGER_MAX8997)	+= max8997_charger.o
 obj-$(CONFIG_CHARGER_MAX8998)	+= max8998_charger.o
 obj-$(CONFIG_CHARGER_MP2629)	+= mp2629_charger.o

drivers/power/supply/ab8500-bm.h

···
 #define BTEMP_HIGH_TH_57_1		0x02
 #define BTEMP_HIGH_TH_62		0x03
 
-/* current is mA */
-#define USB_0P1A			100
-#define USB_0P2A			200
-#define USB_0P3A			300
-#define USB_0P4A			400
-#define USB_0P5A			500
-
 #define LOW_BAT_3P1V			0x20
 #define LOW_BAT_2P3V			0x00
 #define LOW_BAT_RESET			0x01
···
 #define BATT_OVV_TH_3P7			0x00
 #define BATT_OVV_TH_4P75		0x01
 
-/* A value to indicate over voltage */
-#define BATT_OVV_VALUE			4750
+/* A value to indicate over voltage (microvolts) */
+#define BATT_OVV_VALUE			4750000
 
 /* VBUS OVV constants */
 #define VBUS_OVV_SELECT_MASK		0x78
···
 	int resist;
 };
 
-/**
- * struct ab8500_v_to_cap - Table for translating voltage to capacity
- * @voltage:		Voltage in mV
- * @capacity:		Capacity in percent
- */
-struct ab8500_v_to_cap {
-	int voltage;
-	int capacity;
-};
-
 /* Forward declaration */
 struct ab8500_fg;
 
···
  * @init_total_time:		Total init time during startup
  * @high_curr_time:		Time current has to be high to go to recovery
  * @accu_charging:		FG accumulation time while charging
- * @accu_high_curr:		FG accumulation time in high current mode
- * @high_curr_threshold:	High current threshold, in mA
- * @lowbat_threshold:		Low battery threshold, in mV
- * @overbat_threshold:		Over battery threshold, in mV
+ * @accu_high_curr_ua:		FG accumulation time in high current mode
+ * @high_curr_threshold_ua:	High current threshold, in uA
+ * @lowbat_threshold_uv:	Low battery threshold, in uV
  * @battok_falling_th_sel0	Threshold in mV for battOk signal sel0
  *				Resolution in 50 mV step.
  * @battok_raising_th_sel1	Threshold in mV for battOk signal sel1
···
 	int high_curr_time;
 	int accu_charging;
 	int accu_high_curr;
-	int high_curr_threshold;
-	int lowbat_threshold;
-	int overbat_threshold;
+	int high_curr_threshold_ua;
+	int lowbat_threshold_uv;
 	int battok_falling_th_sel0;
 	int battok_raising_th_sel1;
 	int user_cap_limit;
···
 /**
  * struct ab8500_charger_maximization - struct used by the board config.
  * @use_maxi:		Enable maximization for this battery type
- * @maxi_chg_curr:	Maximum charger current allowed
+ * @maxi_chg_curr_ua:	Maximum charger current allowed in microampere
  * @maxi_wait_cycles:	cycles to wait before setting charger current
- * @charger_curr_step	delta between two charger current settings (mA)
+ * @charger_curr_step_ua: delta between two charger current settings (uA)
  */
 struct ab8500_maxim_parameters {
 	bool ena_maxi;
-	int chg_curr;
+	int chg_curr_ua;
 	int wait_cycles;
-	int charger_curr_step;
+	int charger_curr_step_ua;
 };
 
 /**
  * struct ab8500_battery_type - different batteries supported
- * @name:			battery technology
  * @resis_high:			battery upper resistance limit
  * @resis_low:			battery lower resistance limit
- * @charge_full_design:		Maximum battery capacity in mAh
- * @nominal_voltage:		Nominal voltage of the battery in mV
- * @termination_vol:		max voltage upto which battery can be charged
- * @termination_curr		battery charging termination current in mA
- * @recharge_cap		battery capacity limit that will trigger a new
- *				full charging cycle in the case where maintenan-
- *				-ce charging has been disabled
- * @normal_cur_lvl:		charger current in normal state in mA
- * @normal_vol_lvl:		charger voltage in normal state in mV
  * @maint_a_cur_lvl:		charger current in maintenance A state in mA
  * @maint_a_vol_lvl:		charger voltage in maintenance A state in mV
  * @maint_a_chg_timer_h:	charge time in maintenance A state
···
  * @maint_b_chg_timer_h:	charge time in maintenance B state
  * @low_high_cur_lvl:		charger current in temp low/high state in mA
  * @low_high_vol_lvl:		charger voltage in temp low/high state in mV'
- * @battery_resistance:		battery inner resistance in mOhm.
  * @n_r_t_tbl_elements:		number of elements in r_to_t_tbl
  * @r_to_t_tbl:			table containing resistance to temp points
- * @n_v_cap_tbl_elements:	number of elements in v_to_cap_tbl
- * @v_to_cap_tbl:		Voltage to capacity (in %) table
- * @n_batres_tbl_elements	number of elements in the batres_tbl
- * @batres_tbl			battery internal resistance vs temperature table
  */
 struct ab8500_battery_type {
-	int name;
 	int resis_high;
 	int resis_low;
-	int charge_full_design;
-	int nominal_voltage;
-	int termination_vol;
-	int termination_curr;
-	int recharge_cap;
-	int normal_cur_lvl;
-	int normal_vol_lvl;
 	int maint_a_cur_lvl;
 	int maint_a_vol_lvl;
 	int maint_a_chg_timer_h;
···
 	int maint_b_chg_timer_h;
 	int low_high_cur_lvl;
 	int low_high_vol_lvl;
-	int battery_resistance;
 	int n_temp_tbl_elements;
 	const struct ab8500_res_to_temp *r_to_t_tbl;
-	int n_v_cap_tbl_elements;
-	const struct ab8500_v_to_cap *v_to_cap_tbl;
-	int n_batres_tbl_elements;
-	const struct batres_vs_temp *batres_tbl;
 };
 
 /**
···
 
 /**
  * struct ab8500_bm_charger_parameters - Charger specific parameters
- * @usb_volt_max:	maximum allowed USB charger voltage in mV
- * @usb_curr_max:	maximum allowed USB charger current in mA
- * @ac_volt_max:	maximum allowed AC charger voltage in mV
- * @ac_curr_max:	maximum allowed AC charger current in mA
+ * @usb_volt_max_uv:	maximum allowed USB charger voltage in uV
+ * @usb_curr_max_ua:	maximum allowed USB charger current in uA
+ * @ac_volt_max_uv:	maximum allowed AC charger voltage in uV
+ * @ac_curr_max_ua:	maximum allowed AC charger current in uA
  */
 struct ab8500_bm_charger_parameters {
-	int usb_volt_max;
-	int usb_curr_max;
-	int ac_volt_max;
-	int ac_curr_max;
+	int usb_volt_max_uv;
+	int usb_curr_max_ua;
+	int ac_volt_max_uv;
+	int ac_curr_max_ua;
 };
 
 /**
  * struct ab8500_bm_data - ab8500 battery management data
- * @temp_under		under this temp, charging is stopped
- * @temp_low		between this temp and temp_under charging is reduced
- * @temp_high		between this temp and temp_over charging is reduced
- * @temp_over		over this temp, charging is stopped
+ * @bi			battery info from device tree
  * @temp_now		present battery temperature
  * @temp_interval_chg	temperature measurement interval in s when charging
  * @temp_interval_nochg	temperature measurement interval in s when not charging
···
  * @enable_overshoot	flag to enable VBAT overshoot control
  * @auto_trig		flag to enable auto adc trigger
  * @fg_res		resistance of FG resistor in 0.1mOhm
- * @n_btypes		number of elements in array bat_type
- * @batt_id		index of the identified battery in array bat_type
  * @interval_charging	charge alg cycle period time when charging (sec)
  * @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)
- * @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
···
  * @fg_params		fuel gauge parameters
  */
 struct ab8500_bm_data {
-	int temp_under;
-	int temp_low;
-	int temp_high;
-	int temp_over;
+	struct power_supply_battery_info *bi;
 	int temp_now;
 	int temp_interval_chg;
 	int temp_interval_nochg;
···
 	bool auto_trig;
 	enum ab8500_adc_therm adc_therm;
 	int fg_res;
-	int n_btypes;
-	int batt_id;
 	int interval_charging;
 	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 ab8500_maxim_parameters *maxi;
 	const struct ab8500_bm_capacity_levels *cap_levels;
 	struct ab8500_battery_type *bat_type;
···
 	int resist;
 };
 
-/**
- * struct batres_vs_temp - defines one point in a temp vs battery internal
- * resistance curve.
- * @temp:			battery pack temperature in Celsius
- * @resist:			battery internal reistance in mOhm
- */
-struct batres_vs_temp {
-	int temp;
-	int resist;
-};
-
 /* Forward declaration */
 struct ab8500_fg;
 
···
 int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res);
 int ab8500_fg_inst_curr_started(struct ab8500_fg *di);
 int ab8500_fg_inst_curr_done(struct ab8500_fg *di);
-int ab8500_bm_of_probe(struct device *dev,
-		       struct device_node *np,
+int ab8500_bm_of_probe(struct power_supply *psy,
 		       struct ab8500_bm_data *bm);
+void ab8500_bm_of_remove(struct power_supply *psy,
+			 struct ab8500_bm_data *bm);
 
 extern struct platform_driver ab8500_fg_driver;
 extern struct platform_driver ab8500_btemp_driver;

drivers/power/supply/ab8500-chargalg.h

···
  * struct ux500_charger - power supply ux500 charger sub class
  * @psy			power supply base class
  * @ops			ux500 charger operations
- * @max_out_volt	maximum output charger voltage in mV
- * @max_out_curr	maximum output charger current in mA
+ * @max_out_volt_uv	maximum output charger voltage in uV
+ * @max_out_curr_ua	maximum output charger current in uA
  * @enabled		indicates if this charger is used or not
  * @external		external charger unit (pm2xxx)
  */
 struct ux500_charger {
 	struct power_supply *psy;
 	struct ux500_charger_ops ops;
-	int max_out_volt;
-	int max_out_curr;
+	int max_out_volt_uv;
+	int max_out_curr_ua;
 	int wdt_refresh;
 	bool enabled;
 	bool external;

drivers/power/supply/ab8500_bmdata.c

···
 
 #include "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.
- */
-const struct ab8500_res_to_temp ab8500_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},
-};
-EXPORT_SYMBOL(ab8500_temp_tbl_a_thermistor);
+/* Default: under this temperature, charging is stopped */
+#define AB8500_TEMP_UNDER	3
+/* Default: between this temp and AB8500_TEMP_UNDER charging is reduced */
+#define AB8500_TEMP_LOW		8
+/* Default: between this temp and AB8500_TEMP_OVER charging is reduced */
+#define AB8500_TEMP_HIGH	43
+/* Default: over this temp, charging is stopped */
+#define AB8500_TEMP_OVER	48
+/* Default: temperature hysteresis */
+#define AB8500_TEMP_HYSTERESIS	3
 
-const int ab8500_temp_tbl_a_size = ARRAY_SIZE(ab8500_temp_tbl_a_thermistor);
-EXPORT_SYMBOL(ab8500_temp_tbl_a_size);
-
-const struct ab8500_res_to_temp ab8500_temp_tbl_b_thermistor[] = {
-	{-5, 200000},
-	{ 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},
-};
-EXPORT_SYMBOL(ab8500_temp_tbl_b_thermistor);
-
-const int ab8500_temp_tbl_b_size = ARRAY_SIZE(ab8500_temp_tbl_b_thermistor);
-EXPORT_SYMBOL(ab8500_temp_tbl_b_size);
-
-static const struct ab8500_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 const struct ab8500_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 const struct ab8500_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},
+static struct power_supply_battery_ocv_table ocv_cap_tbl[] = {
+	{ .ocv = 4186000, .capacity = 100},
+	{ .ocv = 4163000, .capacity = 99},
+	{ .ocv = 4114000, .capacity = 95},
+	{ .ocv = 4068000, .capacity = 90},
+	{ .ocv = 3990000, .capacity = 80},
+	{ .ocv = 3926000, .capacity = 70},
+	{ .ocv = 3898000, .capacity = 65},
+	{ .ocv = 3866000, .capacity = 60},
+	{ .ocv = 3833000, .capacity = 55},
+	{ .ocv = 3812000, .capacity = 50},
+	{ .ocv = 3787000, .capacity = 40},
+	{ .ocv = 3768000, .capacity = 30},
+	{ .ocv = 3747000, .capacity = 25},
+	{ .ocv = 3730000, .capacity = 20},
+	{ .ocv = 3705000, .capacity = 15},
+	{ .ocv = 3699000, .capacity = 14},
+	{ .ocv = 3684000, .capacity = 12},
+	{ .ocv = 3672000, .capacity = 9},
+	{ .ocv = 3657000, .capacity = 7},
+	{ .ocv = 3638000, .capacity = 6},
+	{ .ocv = 3556000, .capacity = 4},
+	{ .ocv = 3424000, .capacity = 2},
+	{ .ocv = 3317000, .capacity = 1},
+	{ .ocv = 3094000, .capacity = 0},
 };
 
 /*
···
 
 /*
  * Note that the batres_vs_temp table must be strictly sorted by falling
- * temperature values to work.
+ * temperature values to work. Factory resistance is 300 mOhm and the
+ * resistance values to the right are percentages of 300 mOhm.
  */
-static const struct batres_vs_temp temp_to_batres_tbl_thermistor[] = {
-	{ 40, 120},
-	{ 30, 135},
-	{ 20, 165},
-	{ 10, 230},
-	{ 00, 325},
-	{-10, 445},
-	{-20, 595},
+static struct power_supply_resistance_temp_table temp_to_batres_tbl_thermistor[] = {
+	{ .temp = 40, .resistance = 40 /* 120 mOhm */ },
+	{ .temp = 30, .resistance = 45 /* 135 mOhm */ },
+	{ .temp = 20, .resistance = 55 /* 165 mOhm */ },
+	{ .temp = 10, .resistance = 77 /* 230 mOhm */ },
+	{ .temp = 00, .resistance = 108 /* 325 mOhm */ },
+	{ .temp = -10, .resistance = 158 /* 445 mOhm */ },
+	{ .temp = -20, .resistance = 198 /* 595 mOhm */ },
 };
 
-/*
- * Note that the batres_vs_temp table must be strictly sorted by falling
- * temperature values to work.
- */
-static const 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 const 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 ab8500_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_cap = 95,
-		.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_cap = 95,
-		.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(ab8500_temp_tbl_a_thermistor),
-		.r_to_t_tbl = ab8500_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 = 200000,
-		.resis_low = 82869,
-		.battery_resistance = 300,
-		.charge_full_design = 900,
-		.nominal_voltage = 3600,
-		.termination_vol = 4150,
-		.termination_curr = 80,
-		.recharge_cap = 95,
-		.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(ab8500_temp_tbl_b_thermistor),
-		.r_to_t_tbl = ab8500_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 ab8500_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_cap = 95,
-		.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_cap = 95,
-		.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_cap = 95,
-		.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_cap = 95,
-		.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,
-	},
+/* Default battery type for reference designs is the unknown type */
+static struct ab8500_battery_type bat_type_thermistor_unknown = {
+	.resis_high = 0,
+	.resis_low = 0,
+	.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,
 };
 
 static const struct ab8500_bm_capacity_levels cap_levels = {
···
 	.high_curr_time = 60,
 	.accu_charging = 30,
 	.accu_high_curr = 30,
-	.high_curr_threshold = 50,
-	.lowbat_threshold = 3100,
+	.high_curr_threshold_ua = 50000,
+	.lowbat_threshold_uv = 3100000,
 	.battok_falling_th_sel0 = 2860,
 	.battok_raising_th_sel1 = 2860,
 	.maint_thres = 95,
···
 
 static const struct ab8500_maxim_parameters ab8500_maxi_params = {
 	.ena_maxi = true,
-	.chg_curr = 910,
+	.chg_curr_ua = 910000,
 	.wait_cycles = 10,
-	.charger_curr_step = 100,
+	.charger_curr_step_ua = 100000,
 };
 
 static const struct ab8500_bm_charger_parameters chg = {
-	.usb_volt_max		= 5500,
-	.usb_curr_max		= 1500,
-	.ac_volt_max		= 7500,
-	.ac_curr_max		= 1500,
+	.usb_volt_max_uv	= 5500000,
+	.usb_curr_max_ua	= 1500000,
+	.ac_volt_max_uv		= 7500000,
+	.ac_curr_max_ua		= 1500000,
 };
 
-/*
- * 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,
-};
-
-/*
- * 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,
-};
-
+/* This is referenced directly in the charger code */
 struct ab8500_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,
···
 	.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,
+	.bat_type               = &bat_type_thermistor_unknown,
 	.interval_charging      = 5,
 	.interval_not_charging  = 120,
-	.temp_hysteresis        = 3,
 	.gnd_lift_resistance    = 34,
-	.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),
 };
 
-int ab8500_bm_of_probe(struct device *dev,
-		       struct device_node *np,
+int ab8500_bm_of_probe(struct power_supply *psy,
 		       struct ab8500_bm_data *bm)
 {
-	const struct batres_vs_temp *tmp_batres_tbl;
-	struct device_node *battery_node;
-	const char *btech;
-	int i;
+	struct power_supply_battery_info *bi;
+	struct device *dev = &psy->dev;
+	int ret;
 
-	battery_node = of_parse_phandle(np, "monitored-battery", 0);
-	if (!battery_node) {
-		dev_err(dev, "battery node or reference missing\n");
-		return -EINVAL;
+	ret = power_supply_get_battery_info(psy, &bm->bi);
+	if (ret) {
+		dev_err(dev, "cannot retrieve battery info\n");
+		return ret;
+	}
+	bi = bm->bi;
+
+	/* Fill in defaults for any data missing from the device tree */
+	if (bi->charge_full_design_uah < 0)
+		/* The default capacity is 612 mAh for unknown batteries */
+		bi->charge_full_design_uah = 612000;
+
+	/*
+	 * All of these voltages need to be specified or we will simply
+	 * fall back to safe defaults.
+	 */
+	if ((bi->voltage_min_design_uv < 0) ||
+	    (bi->voltage_max_design_uv < 0) ||
+	    (bi->overvoltage_limit_uv < 0)) {
+		/* Nominal voltage is 3.7V for unknown batteries */
+		bi->voltage_min_design_uv = 3700000;
+		bi->voltage_max_design_uv = 3700000;
+		/* Termination voltage (overcharge limit) 4.05V */
+		bi->overvoltage_limit_uv = 4050000;
 	}
 
-	btech = of_get_property(battery_node, "stericsson,battery-type", NULL);
-	if (!btech) {
-		dev_warn(dev, "missing property battery-name/type\n");
-		of_node_put(battery_node);
-		return -EINVAL;
+	if (bi->constant_charge_current_max_ua < 0)
+		bi->constant_charge_current_max_ua = 400000;
+
+	if (bi->constant_charge_voltage_max_uv < 0)
+		bi->constant_charge_voltage_max_uv = 4100000;
+
+	if (bi->charge_term_current_ua)
+		/* Charging stops when we drop below this current */
+		bi->charge_term_current_ua = 200000;
+
+	/*
+	 * Internal resistance and factory resistance are tightly coupled
+	 * so both MUST be defined or we fall back to defaults.
+	 */
+	if ((bi->factory_internal_resistance_uohm < 0) ||
+	    !bi->resist_table) {
+		bi->factory_internal_resistance_uohm = 300000;
+		bi->resist_table = temp_to_batres_tbl_thermistor;
+		bi->resist_table_size = ARRAY_SIZE(temp_to_batres_tbl_thermistor);
 	}
 
-	if (strncmp(btech, "LION", 4) == 0) {
-		bm->no_maintenance  = true;
-		bm->chg_unknown_bat = true;
-		bm->bat_type[BATTERY_UNKNOWN].charge_full_design = 2600;
-		bm->bat_type[BATTERY_UNKNOWN].termination_vol    = 4150;
-		bm->bat_type[BATTERY_UNKNOWN].recharge_cap       = 95;
-		bm->bat_type[BATTERY_UNKNOWN].normal_cur_lvl     = 520;
-		bm->bat_type[BATTERY_UNKNOWN].normal_vol_lvl     = 4200;
+	if (!bi->ocv_table[0]) {
+		/* Default capacity table at say 25 degrees Celsius */
+		bi->ocv_temp[0] = 25;
+		bi->ocv_table[0] = ocv_cap_tbl;
+		bi->ocv_table_size[0] = ARRAY_SIZE(ocv_cap_tbl);
 	}
 
-	if (of_property_read_bool(battery_node, "thermistor-on-batctrl")) {
-		if (strncmp(btech, "LION", 4) == 0)
-			tmp_batres_tbl = temp_to_batres_tbl_9100;
-		else
-			tmp_batres_tbl = temp_to_batres_tbl_thermistor;
-	} else {
-		bm->n_btypes   = 4;
-		bm->bat_type   = bat_type_ext_thermistor;
-		bm->adc_therm  = AB8500_ADC_THERM_BATTEMP;
-		tmp_batres_tbl = temp_to_batres_tbl_ext_thermistor;
-	}
-
-	/* select the battery resolution table */
-	for (i = 0; i < bm->n_btypes; ++i)
-		bm->bat_type[i].batres_tbl = tmp_batres_tbl;
-
-	of_node_put(battery_node);
+	if (bi->temp_min == INT_MIN)
+		bi->temp_min = AB8500_TEMP_UNDER;
+	if (bi->temp_max == INT_MAX)
+		bi->temp_max = AB8500_TEMP_OVER;
+	if (bi->temp_alert_min == INT_MIN)
+		bi->temp_alert_min = AB8500_TEMP_LOW;
+	if (bi->temp_alert_max == INT_MAX)
+		bi->temp_alert_max = AB8500_TEMP_HIGH;
+	bm->temp_hysteresis = AB8500_TEMP_HYSTERESIS;
 
 	return 0;
+}
+
+void ab8500_bm_of_remove(struct power_supply *psy,
+			 struct ab8500_bm_data *bm)
+{
+	power_supply_put_battery_info(psy, bm->bi);
 }

drivers/power/supply/ab8500_btemp.c

···
  */
 static int ab8500_btemp_measure_temp(struct ab8500_btemp *di)
 {
+	struct power_supply_battery_info *bi = di->bm->bi;
 	int temp, ret;
 	static int prev;
 	int rbat, rntc, vntc;
-	u8 id;
 
-	id = di->bm->batt_id;
-
-	if (di->bm->adc_therm == AB8500_ADC_THERM_BATCTRL &&
-			id != BATTERY_UNKNOWN) {
+	if ((di->bm->adc_therm == AB8500_ADC_THERM_BATCTRL) &&
+	    (bi && (bi->technology == POWER_SUPPLY_TECHNOLOGY_UNKNOWN))) {
 
 		rbat = ab8500_btemp_get_batctrl_res(di);
 		if (rbat < 0) {
···
 		}
 
 		temp = ab8500_btemp_res_to_temp(di,
-			di->bm->bat_type[id].r_to_t_tbl,
-			di->bm->bat_type[id].n_temp_tbl_elements, rbat);
+			di->bm->bat_type->r_to_t_tbl,
+			di->bm->bat_type->n_temp_tbl_elements, rbat);
 	} else {
 		ret = iio_read_channel_processed(di->btemp_ball, &vntc);
 		if (ret < 0) {
···
 		rntc = 230000 * vntc / (VTVOUT_V - vntc);
 
 		temp = ab8500_btemp_res_to_temp(di,
-			di->bm->bat_type[id].r_to_t_tbl,
-			di->bm->bat_type[id].n_temp_tbl_elements, rntc);
+			di->bm->bat_type->r_to_t_tbl,
+			di->bm->bat_type->n_temp_tbl_elements, rntc);
 		prev = temp;
 	}
 	dev_dbg(di->dev, "Battery temperature is %d\n", temp);
···
 	u8 i;
 
 	di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA;
-	di->bm->batt_id = BATTERY_UNKNOWN;
 
 	res =  ab8500_btemp_get_batctrl_res(di);
 	if (res < 0) {
···
 		return -ENXIO;
 	}
 
-	/* BATTERY_UNKNOWN is defined on position 0, skip it! */
-	for (i = BATTERY_UNKNOWN + 1; i < di->bm->n_btypes; i++) {
-		if ((res <= di->bm->bat_type[i].resis_high) &&
-			(res >= di->bm->bat_type[i].resis_low)) {
-			dev_dbg(di->dev, "Battery detected on %s"
-				" low %d < res %d < high: %d"
-				" index: %d\n",
-				di->bm->adc_therm == AB8500_ADC_THERM_BATCTRL ?
-				"BATCTRL" : "BATTEMP",
-				di->bm->bat_type[i].resis_low, res,
-				di->bm->bat_type[i].resis_high, i);
-
-			di->bm->batt_id = i;
-			break;
-		}
-	}
-
-	if (di->bm->batt_id == BATTERY_UNKNOWN) {
+	if ((res <= di->bm->bat_type->resis_high) &&
+	    (res >= di->bm->bat_type->resis_low)) {
+		dev_info(di->dev, "Battery detected on %s"
+			 " low %d < res %d < high: %d"
+			 " index: %d\n",
+			 di->bm->adc_therm == AB8500_ADC_THERM_BATCTRL ?
+			 "BATCTRL" : "BATTEMP",
+			 di->bm->bat_type->resis_low, res,
+			 di->bm->bat_type->resis_high, i);
+	} else {
 		dev_warn(di->dev, "Battery identified as unknown"
-			", resistance %d Ohm\n", res);
+			 ", resistance %d Ohm\n", res);
 		return -ENXIO;
 	}
 
 	/*
 	 * We only have to change current source if the
-	 * detected type is Type 1.
+	 * detected type is Type 1 (LIPO) resis_high = 53407, resis_low = 12500
+	 * if someone hacks this in.
+	 *
+	 * FIXME: make sure this is done automatically for the batteries
+	 * that need it.
 	 */
-	if (di->bm->adc_therm == AB8500_ADC_THERM_BATCTRL &&
-	    di->bm->batt_id == 1) {
+	if ((di->bm->adc_therm == AB8500_ADC_THERM_BATCTRL) &&
+	    (di->bm->bi && (di->bm->bi->technology == POWER_SUPPLY_TECHNOLOGY_LIPO)) &&
+	    (res <= 53407) && (res >= 12500)) {
 		dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n");
 		di->curr_source = BTEMP_BATCTRL_CURR_SRC_20UA;
 	}
 
-	return di->bm->batt_id;
+	return 0;
 }
 
 /**
···
 			val->intval = 1;
 		break;
 	case POWER_SUPPLY_PROP_TECHNOLOGY:
-		val->intval = di->bm->bat_type[di->bm->batt_id].name;
+		if (di->bm->bi)
+			val->intval = di->bm->bi->technology;
+		else
+			val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
 		break;
 	case POWER_SUPPLY_PROP_TEMP:
 		val->intval = ab8500_btemp_get_temp(di);

drivers/power/supply/ab8500_chargalg.c

···
 /* Five minutes expressed in seconds */
 #define FIVE_MINUTES_IN_SECONDS        300
 
-#define CHARGALG_CURR_STEP_LOW		0
-#define CHARGALG_CURR_STEP_HIGH	100
+#define CHARGALG_CURR_STEP_LOW_UA	0
+#define CHARGALG_CURR_STEP_HIGH_UA	100000
+
+/*
+ * This is the battery capacity limit that will trigger a new
+ * full charging cycle in the case where maintenance charging
+ * has been disabled
+ */
+#define AB8500_RECHARGE_CAP		95
 
 enum ab8500_chargers {
 	NO_CHG,
···
 	enum ab8500_chargers charger_type;
 	bool usb_chg_ok;
 	bool ac_chg_ok;
-	int usb_volt;
-	int usb_curr;
-	int ac_volt;
-	int ac_curr;
-	int usb_vset;
-	int usb_iset;
-	int ac_vset;
-	int ac_iset;
+	int usb_volt_uv;
+	int usb_curr_ua;
+	int ac_volt_uv;
+	int ac_curr_ua;
+	int usb_vset_uv;
+	int usb_iset_ua;
+	int ac_vset_uv;
+	int ac_iset_ua;
 };
 
 struct ab8500_chargalg_suspension_status {
···
 
 struct ab8500_chargalg_current_step_status {
 	bool curr_step_change;
-	int curr_step;
+	int curr_step_ua;
 };
 
 struct ab8500_chargalg_battery_data {
 	int temp;
-	int volt;
-	int avg_curr;
-	int inst_curr;
+	int volt_uv;
+	int avg_curr_ua;
+	int inst_curr_ua;
 	int percent;
 };
 
···
 
 /**
  * struct ab8500_charge_curr_maximization - Charger maximization parameters
- * @original_iset:	the non optimized/maximised charger current
- * @current_iset:	the charging current used at this moment
- * @test_delta_i:	the delta between the current we want to charge and the
+ * @original_iset_ua:	the non optimized/maximised charger current
+ * @current_iset_ua:	the charging current used at this moment
+ * @test_delta_i_ua:	the delta between the current we want to charge and the
 			current that is really going into the battery
  * @condition_cnt:	number of iterations needed before a new charger current
 			is set
- * @max_current:	maximum charger current
+ * @max_current_ua:	maximum charger current
  * @wait_cnt:		to avoid too fast current step down in case of charger
  *			voltage collapse, we insert this delay between step
  *			down
···
 			increased
  */
 struct ab8500_charge_curr_maximization {
-	int original_iset;
-	int current_iset;
-	int test_delta_i;
+	int original_iset_ua;
+	int current_iset_ua;
+	int test_delta_i_ua;
 	int condition_cnt;
-	int max_current;
+	int max_current_ua;
 	int wait_cnt;
 	u8 level;
 };
···
 
 static int ab8500_chargalg_check_charger_enable(struct ab8500_chargalg *di)
 {
+	struct power_supply_battery_info *bi = di->bm->bi;
+
 	switch (di->charge_state) {
 	case STATE_NORMAL:
 	case STATE_MAINTENANCE_A:
···
 
 	if (di->chg_info.charger_type & USB_CHG) {
 		return di->usb_chg->ops.check_enable(di->usb_chg,
-			di->bm->bat_type[di->bm->batt_id].normal_vol_lvl,
-			di->bm->bat_type[di->bm->batt_id].normal_cur_lvl);
+			bi->constant_charge_voltage_max_uv,
+			bi->constant_charge_current_max_ua);
 	} else if ((di->chg_info.charger_type & AC_CHG) &&
 		   !(di->ac_chg->external)) {
 		return di->ac_chg->ops.check_enable(di->ac_chg,
-			di->bm->bat_type[di->bm->batt_id].normal_vol_lvl,
-			di->bm->bat_type[di->bm->batt_id].normal_cur_lvl);
+			bi->constant_charge_voltage_max_uv,
+			bi->constant_charge_current_max_ua);
 	}
 	return 0;
 }
···
  * ab8500_chargalg_ac_en() - Turn on/off the AC charger
  * @di:		pointer to the ab8500_chargalg structure
  * @enable:	charger on/off
- * @vset:	requested charger output voltage
- * @iset:	requested charger output current
+ * @vset_uv:	requested charger output voltage in microvolt
+ * @iset_ua:	requested charger output current in microampere
  *
  * The AC charger will be turned on/off with the requested charge voltage and
  * current
  */
 static int ab8500_chargalg_ac_en(struct ab8500_chargalg *di, int enable,
-	int vset, int iset)
+	int vset_uv, int iset_ua)
 {
 	static int ab8500_chargalg_ex_ac_enable_toggle;
 
···
 		return -ENXIO;
 
 	/* Select maximum of what both the charger and the battery supports */
-	if (di->ac_chg->max_out_volt)
-		vset = min(vset, di->ac_chg->max_out_volt);
-	if (di->ac_chg->max_out_curr)
-		iset = min(iset, di->ac_chg->max_out_curr);
+	if (di->ac_chg->max_out_volt_uv)
+		vset_uv = min(vset_uv, di->ac_chg->max_out_volt_uv);
+	if (di->ac_chg->max_out_curr_ua)
+		iset_ua = min(iset_ua, di->ac_chg->max_out_curr_ua);
 
-	di->chg_info.ac_iset = iset;
-	di->chg_info.ac_vset = vset;
+	di->chg_info.ac_iset_ua = iset_ua;
+	di->chg_info.ac_vset_uv = vset_uv;
 
 	/* Enable external charger */
 	if (enable && di->ac_chg->external &&
···
 		ab8500_chargalg_ex_ac_enable_toggle++;
 	}
 
-	return di->ac_chg->ops.enable(di->ac_chg, enable, vset, iset);
+	return di->ac_chg->ops.enable(di->ac_chg, enable, vset_uv, iset_ua);
 }
 
 /**
  * ab8500_chargalg_usb_en() - Turn on/off the USB charger
  * @di:		pointer to the ab8500_chargalg structure
  * @enable:	charger on/off
- * @vset:	requested charger output voltage
- * @iset:	requested charger output current
+ * @vset_uv:	requested charger output voltage in microvolt
+ * @iset_ua:	requested charger output current in microampere
  *
  * The USB charger will be turned on/off with the requested charge voltage and
  * current
  */
 static int ab8500_chargalg_usb_en(struct ab8500_chargalg *di, int enable,
-	int vset, int iset)
+	int vset_uv, int iset_ua)
 {
 	if (!di->usb_chg || !di->usb_chg->ops.enable)
 		return -ENXIO;
 
 	/* Select maximum of what both the charger and the battery supports */
-	if (di->usb_chg->max_out_volt)
-		vset = min(vset, di->usb_chg->max_out_volt);
-	if (di->usb_chg->max_out_curr)
-		iset = min(iset, di->usb_chg->max_out_curr);
+	if (di->usb_chg->max_out_volt_uv)
+		vset_uv = min(vset_uv, di->usb_chg->max_out_volt_uv);
+	if (di->usb_chg->max_out_curr_ua)
+		iset_ua = min(iset_ua, di->usb_chg->max_out_curr_ua);
 
-	di->chg_info.usb_iset = iset;
-	di->chg_info.usb_vset = vset;
+	di->chg_info.usb_iset_ua = iset_ua;
+	di->chg_info.usb_vset_uv = vset_uv;
 
-	return di->usb_chg->ops.enable(di->usb_chg, enable, vset, iset);
+	return di->usb_chg->ops.enable(di->usb_chg, enable, vset_uv, iset_ua);
 }
 
 /**
  * ab8500_chargalg_update_chg_curr() - Update charger current
  * @di:		pointer to the ab8500_chargalg structure
- * @iset:	requested charger output current
+ * @iset_ua:	requested charger output current in microampere
  *
  * The charger output current will be updated for the charger
  * that is currently in use
  */
 static int ab8500_chargalg_update_chg_curr(struct ab8500_chargalg *di,
-		int iset)
+		int iset_ua)
 {
 	/* Check if charger exists and update current if charging */
 	if (di->ac_chg && di->ac_chg->ops.update_curr &&
···
 		 * Select maximum of what both the charger
 		 * and the battery supports
 		 */
-		if (di->ac_chg->max_out_curr)
-			iset = min(iset, di->ac_chg->max_out_curr);
+		if (di->ac_chg->max_out_curr_ua)
+			iset_ua = min(iset_ua, di->ac_chg->max_out_curr_ua);
 
-		di->chg_info.ac_iset = iset;
+		di->chg_info.ac_iset_ua = iset_ua;
 
-		return di->ac_chg->ops.update_curr(di->ac_chg, iset);
+		return di->ac_chg->ops.update_curr(di->ac_chg, iset_ua);
 	} else if (di->usb_chg && di->usb_chg->ops.update_curr &&
 			di->chg_info.charger_type & USB_CHG) {
 		/*
 		 * Select maximum of what both the charger
 		 * and the battery supports
 		 */
-		if (di->usb_chg->max_out_curr)
-			iset = min(iset, di->usb_chg->max_out_curr);
+		if (di->usb_chg->max_out_curr_ua)
+			iset_ua = min(iset_ua, di->usb_chg->max_out_curr_ua);
 
-		di->chg_info.usb_iset = iset;
+		di->chg_info.usb_iset_ua = iset_ua;
 
-		return di->usb_chg->ops.update_curr(di->usb_chg, iset);
+		return di->usb_chg->ops.update_curr(di->usb_chg, iset_ua);
 	}
 
 	return -ENXIO;
···
 /**
  * ab8500_chargalg_start_charging() - Start the charger
  * @di:		pointer to the ab8500_chargalg structure
- * @vset:	requested charger output voltage
- * @iset:	requested charger output current
+ * @vset_uv:	requested charger output voltage in microvolt
+ * @iset_ua:	requested charger output current in microampere
  *
  * A charger will be enabled depending on the requested charger type that was
  * detected previously.
  */
 static void ab8500_chargalg_start_charging(struct ab8500_chargalg *di,
-	int vset, int iset)
+	int vset_uv, int iset_ua)
 {
 	switch (di->chg_info.charger_type) {
 	case AC_CHG:
 		dev_dbg(di->dev,
-			"AC parameters: Vset %d, Ich %d\n", vset, iset);
+			"AC parameters: Vset %d, Ich %d\n", vset_uv, iset_ua);
 		ab8500_chargalg_usb_en(di, false, 0, 0);
-		ab8500_chargalg_ac_en(di, true, vset, iset);
+		ab8500_chargalg_ac_en(di, true, vset_uv, iset_ua);
 		break;
 
 	case USB_CHG:
 		dev_dbg(di->dev,
-			"USB parameters: Vset %d, Ich %d\n", vset, iset);
+			"USB parameters: Vset %d, Ich %d\n", vset_uv, iset_ua);
 		ab8500_chargalg_ac_en(di, false, 0, 0);
-		ab8500_chargalg_usb_en(di, true, vset, iset);
+		ab8500_chargalg_usb_en(di, true, vset_uv, iset_ua);
 		break;
 
 	default:
···
  */
 static void ab8500_chargalg_check_temp(struct ab8500_chargalg *di)
 {
-	if (di->batt_data.temp > (di->bm->temp_low + di->t_hyst_norm) &&
-		di->batt_data.temp < (di->bm->temp_high - di->t_hyst_norm)) {
+	struct power_supply_battery_info *bi = di->bm->bi;
+
+	if (di->batt_data.temp > (bi->temp_alert_min + di->t_hyst_norm) &&
+		di->batt_data.temp < (bi->temp_alert_max - di->t_hyst_norm)) {
 		/* Temp OK! */
 		di->events.btemp_underover = false;
 		di->events.btemp_lowhigh = false;
 		di->t_hyst_norm = 0;
 		di->t_hyst_lowhigh = 0;
 	} else {
-		if (((di->batt_data.temp >= di->bm->temp_high) &&
+		if (((di->batt_data.temp >= bi->temp_alert_max) &&
 			(di->batt_data.temp <
-				(di->bm->temp_over - di->t_hyst_lowhigh))) ||
+				(bi->temp_max - di->t_hyst_lowhigh))) ||
 			((di->batt_data.temp >
-				(di->bm->temp_under + di->t_hyst_lowhigh)) &&
-			(di->batt_data.temp <= di->bm->temp_low))) {
+				(bi->temp_min + di->t_hyst_lowhigh)) &&
+			(di->batt_data.temp <= bi->temp_alert_min))) {
 			/* TEMP minor!!!!! */
 			di->events.btemp_underover = false;
 			di->events.btemp_lowhigh = true;
 			di->t_hyst_norm = di->bm->temp_hysteresis;
 			di->t_hyst_lowhigh = 0;
-		} else if (di->batt_data.temp <= di->bm->temp_under ||
-			di->batt_data.temp >= di->bm->temp_over) {
+		} else if (di->batt_data.temp <= bi->temp_min ||
+			di->batt_data.temp >= bi->temp_max) {
 			/* TEMP major!!!!! */
 			di->events.btemp_underover = true;
 			di->events.btemp_lowhigh = false;
···
  */
 static void ab8500_chargalg_check_charger_voltage(struct ab8500_chargalg *di)
 {
-	if (di->chg_info.usb_volt > di->bm->chg_params->usb_volt_max)
+	if (di->chg_info.usb_volt_uv > di->bm->chg_params->usb_volt_max_uv)
 		di->chg_info.usb_chg_ok = false;
 	else
 		di->chg_info.usb_chg_ok = true;
 
-	if (di->chg_info.ac_volt > di->bm->chg_params->ac_volt_max)
+	if (di->chg_info.ac_volt_uv > di->bm->chg_params->ac_volt_max_uv)
 		di->chg_info.ac_chg_ok = false;
 	else
 		di->chg_info.ac_chg_ok = true;
···
 {
 	if (di->charge_status == POWER_SUPPLY_STATUS_CHARGING &&
 		di->charge_state == STATE_NORMAL &&
-		!di->maintenance_chg && (di->batt_data.volt >=
-		di->bm->bat_type[di->bm->batt_id].termination_vol ||
+		!di->maintenance_chg && (di->batt_data.volt_uv >=
+		di->bm->bi->overvoltage_limit_uv ||
 		di->events.usb_cv_active || di->events.ac_cv_active) &&
-		di->batt_data.avg_curr <
-		di->bm->bat_type[di->bm->batt_id].termination_curr &&
-		di->batt_data.avg_curr > 0) {
+		di->batt_data.avg_curr_ua <
+		di->bm->bi->charge_term_current_ua &&
+		di->batt_data.avg_curr_ua > 0) {
 		if (++di->eoc_cnt >= EOC_COND_CNT) {
 			di->eoc_cnt = 0;
 			di->charge_status = POWER_SUPPLY_STATUS_FULL;
···
 
 static void init_maxim_chg_curr(struct ab8500_chargalg *di)
 {
-	di->ccm.original_iset =
-		di->bm->bat_type[di->bm->batt_id].normal_cur_lvl;
-	di->ccm.current_iset =
-		di->bm->bat_type[di->bm->batt_id].normal_cur_lvl;
-	di->ccm.test_delta_i = di->bm->maxi->charger_curr_step;
-	di->ccm.max_current = di->bm->maxi->chg_curr;
+	struct power_supply_battery_info *bi = di->bm->bi;
+
+	di->ccm.original_iset_ua = bi->constant_charge_current_max_ua;
+	di->ccm.current_iset_ua = bi->constant_charge_current_max_ua;
+	di->ccm.test_delta_i_ua = di->bm->maxi->charger_curr_step_ua;
+	di->ccm.max_current_ua = di->bm->maxi->chg_curr_ua;
 	di->ccm.condition_cnt = di->bm->maxi->wait_cycles;
 	di->ccm.level = 0;
 }
···
  */
 static enum maxim_ret ab8500_chargalg_chg_curr_maxim(struct ab8500_chargalg *di)
 {
-	int delta_i;
+	int delta_i_ua;
 
 	if (!di->bm->maxi->ena_maxi)
 		return MAXIM_RET_NOACTION;
 
-	delta_i = di->ccm.original_iset - di->batt_data.inst_curr;
+	delta_i_ua = di->ccm.original_iset_ua - di->batt_data.inst_curr_ua;
 
 	if (di->events.vbus_collapsed) {
 		dev_dbg(di->dev, "Charger voltage has collapsed %d\n",
···
 			dev_dbg(di->dev, "lowering current\n");
 			di->ccm.wait_cnt++;
 			di->ccm.condition_cnt = di->bm->maxi->wait_cycles;
-			di->ccm.max_current =
-				di->ccm.current_iset - di->ccm.test_delta_i;
-			di->ccm.current_iset = di->ccm.max_current;
+			di->ccm.max_current_ua =
+				di->ccm.current_iset_ua - di->ccm.test_delta_i_ua;
+			di->ccm.current_iset_ua = di->ccm.max_current_ua;
 			di->ccm.level--;
 			return MAXIM_RET_CHANGE;
 		} else {
···
 
 	di->ccm.wait_cnt = 0;
 
-	if (di->batt_data.inst_curr > di->ccm.original_iset) {
-		dev_dbg(di->dev, " Maximization Ibat (%dmA) too high"
-			" (limit %dmA) (current iset: %dmA)!\n",
-			di->batt_data.inst_curr, di->ccm.original_iset,
-			di->ccm.current_iset);
+	if (di->batt_data.inst_curr_ua > di->ccm.original_iset_ua) {
+		dev_dbg(di->dev, " Maximization Ibat (%duA) too high"
+			" (limit %duA) (current iset: %duA)!\n",
+			di->batt_data.inst_curr_ua, di->ccm.original_iset_ua,
+			di->ccm.current_iset_ua);
 
-		if (di->ccm.current_iset == di->ccm.original_iset)
+		if (di->ccm.current_iset_ua == di->ccm.original_iset_ua)
 			return MAXIM_RET_NOACTION;
 
 		di->ccm.condition_cnt = di->bm->maxi->wait_cycles;
-		di->ccm.current_iset = di->ccm.original_iset;
+		di->ccm.current_iset_ua = di->ccm.original_iset_ua;
 		di->ccm.level = 0;
 
 		return MAXIM_RET_IBAT_TOO_HIGH;
 	}
 
-	if (delta_i > di->ccm.test_delta_i &&
-		(di->ccm.current_iset + di->ccm.test_delta_i) <
-		di->ccm.max_current) {
+	if (delta_i_ua > di->ccm.test_delta_i_ua &&
+		(di->ccm.current_iset_ua + di->ccm.test_delta_i_ua) <
+		di->ccm.max_current_ua) {
 		if (di->ccm.condition_cnt-- == 0) {
 			/* Increse the iset with cco.test_delta_i */
 			di->ccm.condition_cnt = di->bm->maxi->wait_cycles;
-			di->ccm.current_iset += di->ccm.test_delta_i;
+			di->ccm.current_iset_ua += di->ccm.test_delta_i_ua;
 			di->ccm.level++;
 			dev_dbg(di->dev, " Maximization needed, increase"
-				" with %d mA to %dmA (Optimal ibat: %d)"
+				" with %d uA to %duA (Optimal ibat: %d uA)"
 				" Level %d\n",
-				di->ccm.test_delta_i,
-				di->ccm.current_iset,
-				di->ccm.original_iset,
+				di->ccm.test_delta_i_ua,
+				di->ccm.current_iset_ua,
+				di->ccm.original_iset_ua,
 				di->ccm.level);
 			return MAXIM_RET_CHANGE;
 		} else {
···
 
 static void handle_maxim_chg_curr(struct ab8500_chargalg *di)
 {
+	struct power_supply_battery_info *bi = di->bm->bi;
 	enum maxim_ret ret;
 	int result;
 
···
 	switch (ret) {
 	case MAXIM_RET_CHANGE:
 		result = ab8500_chargalg_update_chg_curr(di,
-			di->ccm.current_iset);
+			di->ccm.current_iset_ua);
 		if (result)
 			dev_err(di->dev, "failed to set chg curr\n");
 		break;
 	case MAXIM_RET_IBAT_TOO_HIGH:
 		result = ab8500_chargalg_update_chg_curr(di,
-			di->bm->bat_type[di->bm->batt_id].normal_cur_lvl);
+			bi->constant_charge_current_max_ua);
 		if (result)
 			dev_err(di->dev, "failed to set chg curr\n");
 		break;
···
 		case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
-				di->batt_data.volt = ret.intval / 1000;
+				di->batt_data.volt_uv = ret.intval;
 				break;
 			case POWER_SUPPLY_TYPE_MAINS:
-				di->chg_info.ac_volt = ret.intval / 1000;
+				di->chg_info.ac_volt_uv = ret.intval;
 				break;
 			case POWER_SUPPLY_TYPE_USB:
-				di->chg_info.usb_volt = ret.intval / 1000;
+				di->chg_info.usb_volt_uv = ret.intval;
 				break;
 			default:
 				break;
···
 		case POWER_SUPPLY_PROP_CURRENT_NOW:
 			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_MAINS:
-					di->chg_info.ac_curr =
-						ret.intval / 1000;
-					break;
+				di->chg_info.ac_curr_ua = ret.intval;
+				break;
 			case POWER_SUPPLY_TYPE_USB:
-					di->chg_info.usb_curr =
-						ret.intval / 1000;
+				di->chg_info.usb_curr_ua = ret.intval;
 				break;
 			case POWER_SUPPLY_TYPE_BATTERY:
-				di->batt_data.inst_curr = ret.intval / 1000;
+				di->batt_data.inst_curr_ua = ret.intval;
 				break;
 			default:
 				break;
···
 		case POWER_SUPPLY_PROP_CURRENT_AVG:
 			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
-				di->batt_data.avg_curr = ret.intval / 1000;
+				di->batt_data.avg_curr_ua = ret.intval;
 				break;
 			case POWER_SUPPLY_TYPE_USB:
 				if (ret.intval)
···
  */
 static void ab8500_chargalg_algorithm(struct ab8500_chargalg *di)
 {
+	struct power_supply_battery_info *bi = di->bm->bi;
 	int charger_status;
 	int ret;
-	int curr_step_lvl;
+	int curr_step_lvl_ua;
 
 	/* Collect data from all power_supply class devices */
 	class_for_each_device(power_supply_class, NULL,
···
 		"State %s Active_chg %d Chg_status %d AC %d USB %d "
 		"AC_online %d USB_online %d AC_CV %d USB_CV %d AC_I %d "
 		"USB_I %d AC_Vset %d AC_Iset %d USB_Vset %d USB_Iset %d\n",
-		di->batt_data.volt,
-		di->batt_data.avg_curr,
-		di->batt_data.inst_curr,
+		di->batt_data.volt_uv,
+		di->batt_data.avg_curr_ua,
+		di->batt_data.inst_curr_ua,
 		di->batt_data.temp,
 		di->batt_data.percent,
 		di->maintenance_chg,
···
 		di->chg_info.online_chg & USB_CHG,
 		di->events.ac_cv_active,
 		di->events.usb_cv_active,
-		di->chg_info.ac_curr,
-		di->chg_info.usb_curr,
-		di->chg_info.ac_vset,
-		di->chg_info.ac_iset,
-		di->chg_info.usb_vset,
-		di->chg_info.usb_iset);
+		di->chg_info.ac_curr_ua,
+		di->chg_info.usb_curr_ua,
+		di->chg_info.ac_vset_uv,
+		di->chg_info.ac_iset_ua,
+		di->chg_info.usb_vset_uv,
+		di->chg_info.usb_iset_ua);
 
 	switch (di->charge_state) {
 	case STATE_HANDHELD_INIT:
···
 		break;
 
 	case STATE_NORMAL_INIT:
-		if (di->curr_status.curr_step == CHARGALG_CURR_STEP_LOW)
+		if (di->curr_status.curr_step_ua == CHARGALG_CURR_STEP_LOW_UA)
 			ab8500_chargalg_stop_charging(di);
 		else {
-			curr_step_lvl = di->bm->bat_type[
-				di->bm->batt_id].normal_cur_lvl
-				* di->curr_status.curr_step
-				/ CHARGALG_CURR_STEP_HIGH;
+			curr_step_lvl_ua = bi->constant_charge_current_max_ua
+				* di->curr_status.curr_step_ua
+				/ CHARGALG_CURR_STEP_HIGH_UA;
 			ab8500_chargalg_start_charging(di,
-				di->bm->bat_type[di->bm->batt_id]
-				.normal_vol_lvl, curr_step_lvl);
+				bi->constant_charge_voltage_max_uv,
+				curr_step_lvl_ua);
 		}
 
 		ab8500_chargalg_state_to(di, STATE_NORMAL);
···
 		fallthrough;
 
 	case STATE_WAIT_FOR_RECHARGE:
-		if (di->batt_data.percent <=
-		    di->bm->bat_type[di->bm->batt_id].recharge_cap)
+		if (di->batt_data.percent <= AB8500_RECHARGE_CAP)
 			ab8500_chargalg_state_to(di, STATE_NORMAL_INIT);
 		break;
 
 	case STATE_MAINTENANCE_A_INIT:
 		ab8500_chargalg_stop_safety_timer(di);
 		ab8500_chargalg_start_maintenance_timer(di,
-			di->bm->bat_type[
-				di->bm->batt_id].maint_a_chg_timer_h);
+			di->bm->bat_type->maint_a_chg_timer_h);
 		ab8500_chargalg_start_charging(di,
-			di->bm->bat_type[
-				di->bm->batt_id].maint_a_vol_lvl,
-			di->bm->bat_type[
-				di->bm->batt_id].maint_a_cur_lvl);
+			di->bm->bat_type->maint_a_vol_lvl,
+			di->bm->bat_type->maint_a_cur_lvl);
 		ab8500_chargalg_state_to(di, STATE_MAINTENANCE_A);
 		power_supply_changed(di->chargalg_psy);
 		fallthrough;
···
 
 	case STATE_MAINTENANCE_B_INIT:
 		ab8500_chargalg_start_maintenance_timer(di,
-			di->bm->bat_type[
-				di->bm->batt_id].maint_b_chg_timer_h);
+			di->bm->bat_type->maint_b_chg_timer_h);
 		ab8500_chargalg_start_charging(di,
-			di->bm->bat_type[
-				di->bm->batt_id].maint_b_vol_lvl,
-			di->bm->bat_type[
-				di->bm->batt_id].maint_b_cur_lvl);
+			di->bm->bat_type->maint_b_vol_lvl,
+			di->bm->bat_type->maint_b_cur_lvl);
 		ab8500_chargalg_state_to(di, STATE_MAINTENANCE_B);
 		power_supply_changed(di->chargalg_psy);
 		fallthrough;
···
 
 	case STATE_TEMP_LOWHIGH_INIT:
 		ab8500_chargalg_start_charging(di,
-			di->bm->bat_type[
-				di->bm->batt_id].low_high_vol_lvl,
-			di->bm->bat_type[
-				di->bm->batt_id].low_high_cur_lvl);
+			di->bm->bat_type->low_high_vol_lvl,
+			di->bm->bat_type->low_high_cur_lvl);
 		ab8500_chargalg_stop_maintenance_timer(di);
 		di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
 		ab8500_chargalg_state_to(di, STATE_TEMP_LOWHIGH);
···
 		if (di->events.batt_ovv) {
 			val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
 		} else if (di->events.btemp_underover) {
-			if (di->batt_data.temp <= di->bm->temp_under)
+			if (di->batt_data.temp <= di->bm->bi->temp_min)
 				val->intval = POWER_SUPPLY_HEALTH_COLD;
 			else
 				val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
···
 static ssize_t ab8500_chargalg_curr_step_show(struct ab8500_chargalg *di,
 					      char *buf)
 {
-	return sprintf(buf, "%d\n", di->curr_status.curr_step);
+	return sprintf(buf, "%d\n", di->curr_status.curr_step_ua);
 }
 
 static ssize_t ab8500_chargalg_curr_step_store(struct ab8500_chargalg *di,
···
 	if (ret < 0)
 		return ret;
 
-	di->curr_status.curr_step = param;
-	if (di->curr_status.curr_step >= CHARGALG_CURR_STEP_LOW &&
-		di->curr_status.curr_step <= CHARGALG_CURR_STEP_HIGH) {
+	di->curr_status.curr_step_ua = param;
+	if (di->curr_status.curr_step_ua >= CHARGALG_CURR_STEP_LOW_UA &&
+		di->curr_status.curr_step_ua <= CHARGALG_CURR_STEP_HIGH_UA) {
 		di->curr_status.curr_step_change = true;
 		queue_work(di->chargalg_wq, &di->chargalg_work);
 	} else
···
 		dev_err(di->dev, "failed to create sysfs entry\n");
 		return ret;
 	}
-	di->curr_status.curr_step = CHARGALG_CURR_STEP_HIGH;
+	di->curr_status.curr_step_ua = CHARGALG_CURR_STEP_HIGH_UA;
 
 	dev_info(di->dev, "probe success\n");
 	return component_add(dev, &ab8500_chargalg_component_ops);

drivers/power/supply/ab8500_charger.c

···
 	AB8500_BM_USB_STATE_MAX,
 };
 
-/* VBUS input current limits supported in AB8500 in mA */
-#define USB_CH_IP_CUR_LVL_0P05		50
-#define USB_CH_IP_CUR_LVL_0P09		98
-#define USB_CH_IP_CUR_LVL_0P19		193
-#define USB_CH_IP_CUR_LVL_0P29		290
-#define USB_CH_IP_CUR_LVL_0P38		380
-#define USB_CH_IP_CUR_LVL_0P45		450
-#define USB_CH_IP_CUR_LVL_0P5		500
-#define USB_CH_IP_CUR_LVL_0P6		600
-#define USB_CH_IP_CUR_LVL_0P7		700
-#define USB_CH_IP_CUR_LVL_0P8		800
-#define USB_CH_IP_CUR_LVL_0P9		900
-#define USB_CH_IP_CUR_LVL_1P0		1000
-#define USB_CH_IP_CUR_LVL_1P1		1100
-#define USB_CH_IP_CUR_LVL_1P3		1300
-#define USB_CH_IP_CUR_LVL_1P4		1400
-#define USB_CH_IP_CUR_LVL_1P5		1500
+/* VBUS input current limits supported in AB8500 in uA */
+#define USB_CH_IP_CUR_LVL_0P05		50000
+#define USB_CH_IP_CUR_LVL_0P09		98000
+#define USB_CH_IP_CUR_LVL_0P19		193000
+#define USB_CH_IP_CUR_LVL_0P29		290000
+#define USB_CH_IP_CUR_LVL_0P38		380000
+#define USB_CH_IP_CUR_LVL_0P45		450000
+#define USB_CH_IP_CUR_LVL_0P5		500000
+#define USB_CH_IP_CUR_LVL_0P6		600000
+#define USB_CH_IP_CUR_LVL_0P7		700000
+#define USB_CH_IP_CUR_LVL_0P8		800000
+#define USB_CH_IP_CUR_LVL_0P9		900000
+#define USB_CH_IP_CUR_LVL_1P0		1000000
+#define USB_CH_IP_CUR_LVL_1P1		1100000
+#define USB_CH_IP_CUR_LVL_1P3		1300000
+#define USB_CH_IP_CUR_LVL_1P4		1400000
+#define USB_CH_IP_CUR_LVL_1P5		1500000
 
 #define VBAT_TRESH_IP_CUR_RED		3800
 
···
 struct ab8500_charger_info {
 	int charger_connected;
 	int charger_online;
-	int charger_voltage;
+	int charger_voltage_uv;
 	int cv_active;
 	bool wd_expired;
-	int charger_current;
+	int charger_current_ua;
 };
 
 struct ab8500_charger_event_flags {
···
 };
 
 struct ab8500_charger_usb_state {
-	int usb_current;
-	int usb_current_tmp;
+	int usb_current_ua;
+	int usb_current_tmp_ua;
 	enum ab8500_usb_state state;
 	enum ab8500_usb_state state_tmp;
 	spinlock_t usb_lock;
 };
 
 struct ab8500_charger_max_usb_in_curr {
-	int usb_type_max;
-	int set_max;
-	int calculated_max;
+	int usb_type_max_ua;
+	int set_max_ua;
+	int calculated_max_ua;
 };
 
 /**
···
  * ab8500_charger_get_ac_voltage() - get ac charger voltage
  * @di:		pointer to the ab8500_charger structure
  *
- * Returns ac charger voltage (on success)
+ * Returns ac charger voltage in microvolt (on success)
  */
 static int ab8500_charger_get_ac_voltage(struct ab8500_charger *di)
 {
···
 	} else {
 		vch = 0;
 	}
-	return vch;
+	/* Convert to microvolt, IIO returns millivolt */
+	return vch * 1000;
 }
 
 /**
···
  * @di:		pointer to the ab8500_charger structure
  *
  * This function returns the vbus voltage.
- * Returns vbus voltage (on success)
+ * Returns vbus voltage in microvolt (on success)
  */
 static int ab8500_charger_get_vbus_voltage(struct ab8500_charger *di)
 {
···
 	} else {
 		vch = 0;
 	}
-	return vch;
+	/* Convert to microvolt, IIO returns millivolt */
+	return vch * 1000;
 }
 
 /**
···
  * @di:		pointer to the ab8500_charger structure
  *
  * This function returns the usb charger current.
- * Returns usb current (on success) and error code on failure
+ * Returns usb current in microamperes (on success) and error code on failure
  */
 static int ab8500_charger_get_usb_current(struct ab8500_charger *di)
 {
···
 	} else {
 		ich = 0;
 	}
-	return ich;
+	/* Return microamperes */
+	return ich * 1000;
 }
 
 /**
···
  * @di:		pointer to the ab8500_charger structure
  *
  * This function returns the ac charger current.
- * Returns ac current (on success) and error code on failure.
+ * Returns ac current in microamperes (on success) and error code on failure.
  */
 static int ab8500_charger_get_ac_current(struct ab8500_charger *di)
 {
···
 	} else {
 		ich = 0;
 	}
-	return ich;
+	/* Return microamperes */
+	return ich * 1000;
 }
 
 /**
···
 	case USB_STAT_STD_HOST_C_S:
 		dev_dbg(di->dev, "USB Type - Standard host is "
 			"detected through USB driver\n");
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		di->is_aca_rid = 0;
 		break;
 	case USB_STAT_HOST_CHG_HS_CHIRP:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		di->is_aca_rid = 0;
 		break;
 	case USB_STAT_HOST_CHG_HS:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		di->is_aca_rid = 0;
 		break;
 	case USB_STAT_ACA_RID_C_HS:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P9;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P9;
 		di->is_aca_rid = 0;
 		break;
 	case USB_STAT_ACA_RID_A:
···
 		 * can consume (900mA). Closest level is 500mA
 		 */
 		dev_dbg(di->dev, "USB_STAT_ACA_RID_A detected\n");
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		di->is_aca_rid = 1;
 		break;
 	case USB_STAT_ACA_RID_B:
···
 		 * Dedicated charger level minus 120mA (20mA for ACA and
 		 * 100mA for potential accessory). Closest level is 1300mA
 		 */
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_1P3;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_1P3;
 		dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", link_status,
-				di->max_usb_in_curr.usb_type_max);
+				di->max_usb_in_curr.usb_type_max_ua);
 		di->is_aca_rid = 1;
 		break;
 	case USB_STAT_HOST_CHG_NM:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		di->is_aca_rid = 0;
 		break;
 	case USB_STAT_DEDICATED_CHG:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_1P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_1P5;
 		di->is_aca_rid = 0;
 		break;
 	case USB_STAT_ACA_RID_C_HS_CHIRP:
 	case USB_STAT_ACA_RID_C_NM:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_1P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_1P5;
 		di->is_aca_rid = 1;
 		break;
 	case USB_STAT_NOT_CONFIGURED:
 		if (di->vbus_detected) {
 			di->usb_device_is_unrecognised = true;
 			dev_dbg(di->dev, "USB Type - Legacy charger.\n");
-			di->max_usb_in_curr.usb_type_max =
+			di->max_usb_in_curr.usb_type_max_ua =
 						USB_CH_IP_CUR_LVL_1P5;
 			break;
 		}
 		fallthrough;
 	case USB_STAT_HM_IDGND:
 		dev_err(di->dev, "USB Type - Charging not allowed\n");
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P05;
 		ret = -ENXIO;
 		break;
 	case USB_STAT_RESERVED:
···
 			break;
 		} else {
 			dev_dbg(di->dev, "USB Type - Charging not allowed\n");
-			di->max_usb_in_curr.usb_type_max =
+			di->max_usb_in_curr.usb_type_max_ua =
 						USB_CH_IP_CUR_LVL_0P05;
 			dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d",
 				link_status,
-				di->max_usb_in_curr.usb_type_max);
+				di->max_usb_in_curr.usb_type_max_ua);
 			ret = -ENXIO;
 			break;
 		}
···
 	case USB_STAT_CARKIT_2:
 	case USB_STAT_ACA_DOCK_CHARGER:
 	case USB_STAT_CHARGER_LINE_1:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", link_status,
-				di->max_usb_in_curr.usb_type_max);
+				di->max_usb_in_curr.usb_type_max_ua);
 		break;
 	case USB_STAT_NOT_VALID_LINK:
 		dev_err(di->dev, "USB Type invalid - try charging anyway\n");
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		break;
 
 	default:
 		dev_err(di->dev, "USB Type - Unknown\n");
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P05;
 		ret = -ENXIO;
 		break;
 	}
 
-	di->max_usb_in_curr.set_max = di->max_usb_in_curr.usb_type_max;
+	di->max_usb_in_curr.set_max_ua = di->max_usb_in_curr.usb_type_max_ua;
 	dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d",
-		link_status, di->max_usb_in_curr.set_max);
+		link_status, di->max_usb_in_curr.set_max_ua);
 
 	return ret;
 }
···
 
 /*
  * This array maps the raw hex value to charger voltage used by the AB8500
- * Values taken from the UM0836
+ * Values taken from the UM0836, in microvolt.
  */
 static int ab8500_charger_voltage_map[] = {
-	3500 ,
-	3525 ,
-	3550 ,
-	3575 ,
-	3600 ,
-	3625 ,
-	3650 ,
-	3675 ,
-	3700 ,
-	3725 ,
-	3750 ,
-	3775 ,
-	3800 ,
-	3825 ,
-	3850 ,
-	3875 ,
-	3900 ,
-	3925 ,
-	3950 ,
-	3975 ,
-	4000 ,
-	4025 ,
-	4050 ,
-	4060 ,
-	4070 ,
-	4080 ,
-	4090 ,
-	4100 ,
-	4110 ,
-	4120 ,
-	4130 ,
-	4140 ,
-	4150 ,
-	4160 ,
-	4170 ,
-	4180 ,
-	4190 ,
-	4200 ,
-	4210 ,
-	4220 ,
-	4230 ,
-	4240 ,
-	4250 ,
-	4260 ,
-	4270 ,
-	4280 ,
-	4290 ,
-	4300 ,
-	4310 ,
-	4320 ,
-	4330 ,
-	4340 ,
-	4350 ,
-	4360 ,
-	4370 ,
-	4380 ,
-	4390 ,
-	4400 ,
-	4410 ,
-	4420 ,
-	4430 ,
-	4440 ,
-	4450 ,
-	4460 ,
-	4470 ,
-	4480 ,
-	4490 ,
-	4500 ,
-	4510 ,
-	4520 ,
-	4530 ,
-	4540 ,
-	4550 ,
-	4560 ,
-	4570 ,
-	4580 ,
-	4590 ,
-	4600 ,
+	3500000,
+	3525000,
+	3550000,
+	3575000,
+	3600000,
+	3625000,
+	3650000,
+	3675000,
+	3700000,
+	3725000,
+	3750000,
+	3775000,
+	3800000,
+	3825000,
+	3850000,
+	3875000,
+	3900000,
+	3925000,
+	3950000,
+	3975000,
+	4000000,
+	4025000,
+	4050000,
+	4060000,
+	4070000,
+	4080000,
+	4090000,
+	4100000,
+	4110000,
+	4120000,
+	4130000,
+	4140000,
+	4150000,
+	4160000,
+	4170000,
+	4180000,
+	4190000,
+	4200000,
+	4210000,
+	4220000,
+	4230000,
+	4240000,
+	4250000,
+	4260000,
+	4270000,
+	4280000,
+	4290000,
+	4300000,
+	4310000,
+	4320000,
+	4330000,
+	4340000,
+	4350000,
+	4360000,
+	4370000,
+	4380000,
+	4390000,
+	4400000,
+	4410000,
+	4420000,
+	4430000,
+	4440000,
+	4450000,
+	4460000,
+	4470000,
+	4480000,
+	4490000,
+	4500000,
+	4510000,
+	4520000,
+	4530000,
+	4540000,
+	4550000,
+	4560000,
+	4570000,
+	4580000,
+	4590000,
+	4600000,
 };
 
-static int ab8500_voltage_to_regval(int voltage)
+static int ab8500_voltage_to_regval(int voltage_uv)
 {
 	int i;
 
 	/* Special case for voltage below 3.5V */
-	if (voltage < ab8500_charger_voltage_map[0])
+	if (voltage_uv < ab8500_charger_voltage_map[0])
 		return LOW_VOLT_REG;
 
 	for (i = 1; i < ARRAY_SIZE(ab8500_charger_voltage_map); i++) {
-		if (voltage < ab8500_charger_voltage_map[i])
+		if (voltage_uv < ab8500_charger_voltage_map[i])
 			return i - 1;
 	}
 
 	/* If not last element, return error */
 	i = ARRAY_SIZE(ab8500_charger_voltage_map) - 1;
-	if (voltage == ab8500_charger_voltage_map[i])
+	if (voltage_uv == ab8500_charger_voltage_map[i])
 		return i;
 	else
 		return -1;
 }
 
-static int ab8500_current_to_regval(struct ab8500_charger *di, int curr)
+/* This array maps the raw register value to charger input current */
+static int ab8500_charge_input_curr_map[] = {
+	50000, 98000, 193000, 290000, 380000, 450000, 500000, 600000,
+	700000, 800000, 900000, 1000000, 1100000, 1300000, 1400000, 1500000,
+};
+
+/* This array maps the raw register value to charger output current */
+static int ab8500_charge_output_curr_map[] = {
+	100000, 200000, 300000, 400000, 500000, 600000, 700000, 800000,
+	900000, 1000000, 1100000, 1200000, 1300000, 1400000, 1500000, 1500000,
+};
+
+static int ab8500_current_to_regval(struct ab8500_charger *di, int curr_ua)
 {
 	int i;
 
-	if (curr < di->bm->chg_output_curr[0])
+	if (curr_ua < ab8500_charge_output_curr_map[0])
 		return 0;
 
-	for (i = 0; i < di->bm->n_chg_out_curr; i++) {
-		if (curr < di->bm->chg_output_curr[i])
+	for (i = 0; i < ARRAY_SIZE(ab8500_charge_output_curr_map); i++) {
+		if (curr_ua < ab8500_charge_output_curr_map[i])
 			return i - 1;
 	}
 
 	/* If not last element, return error */
-	i = di->bm->n_chg_out_curr - 1;
-	if (curr == di->bm->chg_output_curr[i])
+	i =  ARRAY_SIZE(ab8500_charge_output_curr_map) - 1;
+	if (curr_ua == ab8500_charge_output_curr_map[i])
 		return i;
 	else
 		return -1;
 }
 
-static int ab8500_vbus_in_curr_to_regval(struct ab8500_charger *di, int curr)
+static int ab8500_vbus_in_curr_to_regval(struct ab8500_charger *di, int curr_ua)
 {
 	int i;
 
-	if (curr < di->bm->chg_input_curr[0])
+	if (curr_ua < ab8500_charge_input_curr_map[0])
 		return 0;
 
-	for (i = 0; i < di->bm->n_chg_in_curr; i++) {
-		if (curr < di->bm->chg_input_curr[i])
+	for (i = 0; i < ARRAY_SIZE(ab8500_charge_input_curr_map); i++) {
+		if (curr_ua < ab8500_charge_input_curr_map[i])
 			return i - 1;
 	}
 
 	/* If not last element, return error */
-	i = di->bm->n_chg_in_curr - 1;
-	if (curr == di->bm->chg_input_curr[i])
+	i =  ARRAY_SIZE(ab8500_charge_input_curr_map) - 1;
+	if (curr_ua == ab8500_charge_input_curr_map[i])
 		return i;
 	else
 		return -1;
···
  * @di:		pointer to the ab8500_charger structre
  *
  * The usb stack provides the maximum current that can be drawn from
- * the standard usb host. This will be in mA.
- * This function converts current in mA to a value that can be written
+ * the standard usb host. This will be in uA.
+ * This function converts current in uA to a value that can be written
  * to the register. Returns -1 if charging is not allowed
  */
 static int ab8500_charger_get_usb_cur(struct ab8500_charger *di)
 {
 	int ret = 0;
-	switch (di->usb_state.usb_current) {
-	case 100:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P09;
+	switch (di->usb_state.usb_current_ua) {
+	case 100000:
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P09;
 		break;
-	case 200:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P19;
+	case 200000:
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P19;
 		break;
-	case 300:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P29;
+	case 300000:
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P29;
 		break;
-	case 400:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P38;
+	case 400000:
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P38;
 		break;
-	case 500:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5;
+	case 500000:
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P5;
 		break;
 	default:
-		di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05;
+		di->max_usb_in_curr.usb_type_max_ua = USB_CH_IP_CUR_LVL_0P05;
 		ret = -EPERM;
 		break;
 	}
-	di->max_usb_in_curr.set_max = di->max_usb_in_curr.usb_type_max;
+	di->max_usb_in_curr.set_max_ua = di->max_usb_in_curr.usb_type_max_ua;
 	return ret;
 }
 
···
 /**
  * ab8500_charger_set_current() - set charger current
  * @di:		pointer to the ab8500_charger structure
- * @ich:	charger current, in mA
+ * @ich_ua:	charger current, in uA
  * @reg:	select what charger register to set
  *
  * Set charger current.
···
  * Returns error code in case of failure else 0(on success)
  */
 static int ab8500_charger_set_current(struct ab8500_charger *di,
-	int ich, int reg)
+	int ich_ua, int reg)
 {
 	int ret = 0;
 	int curr_index, prev_curr_index, shift_value, i;
···
 	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(di, ich);
+		curr_index = ab8500_current_to_regval(di, ich_ua);
 		step_udelay = STEP_UDELAY;
 		if (!di->ac.charger_connected)
 			no_stepping = true;
···
 	case AB8500_USBCH_IPT_CRNTLVL_REG:
 		shift_value = VBUS_IN_CURR_LIM_SHIFT;
 		prev_curr_index = (reg_value >> shift_value);
-		curr_index = ab8500_vbus_in_curr_to_regval(di, ich);
+		curr_index = ab8500_vbus_in_curr_to_regval(di, ich_ua);
 		step_udelay = STEP_UDELAY * 100;
 
 		if (!di->usb.charger_connected)
···
 	case AB8500_CH_OPT_CRNTLVL_REG:
 		shift_value = 0;
 		prev_curr_index = (reg_value >> shift_value);
-		curr_index = ab8500_current_to_regval(di, ich);
+		curr_index = ab8500_current_to_regval(di, ich_ua);
 		step_udelay = STEP_UDELAY;
 		if (curr_index && (curr_index - prev_curr_index) > 1)
 			step_udelay *= 100;
···
 		goto exit_set_current;
 	}
 
-	dev_dbg(di->dev, "%s set charger current: %d mA for reg: 0x%02x\n",
-		__func__, ich, reg);
+	dev_dbg(di->dev, "%s set charger current: %d uA for reg: 0x%02x\n",
+		__func__, ich_ua, reg);
 
 	if (no_stepping) {
 		ret = abx500_set_register_interruptible(di->dev, AB8500_CHARGER,
···
 /**
  * ab8500_charger_set_vbus_in_curr() - set VBUS input current limit
  * @di:		pointer to the ab8500_charger structure
- * @ich_in:	charger input current limit
+ * @ich_in_ua:	charger input current limit in microampere
  *
  * Sets the current that can be drawn from the USB host
  * Returns error code in case of failure else 0(on success)
  */
 static int ab8500_charger_set_vbus_in_curr(struct ab8500_charger *di,
-		int ich_in)
+		int ich_in_ua)
 {
 	int min_value;
 	int ret;
 
 	/* We should always use to lowest current limit */
-	min_value = min(di->bm->chg_params->usb_curr_max, ich_in);
-	if (di->max_usb_in_curr.set_max > 0)
-		min_value = min(di->max_usb_in_curr.set_max, min_value);
+	min_value = min(di->bm->chg_params->usb_curr_max_ua, ich_in_ua);
+	if (di->max_usb_in_curr.set_max_ua > 0)
+		min_value = min(di->max_usb_in_curr.set_max_ua, min_value);
 
-	if (di->usb_state.usb_current >= 0)
-		min_value = min(di->usb_state.usb_current, min_value);
+	if (di->usb_state.usb_current_ua >= 0)
+		min_value = min(di->usb_state.usb_current_ua, min_value);
 
 	switch (min_value) {
-	case 100:
+	case 100000:
 		if (di->vbat < VBAT_TRESH_IP_CUR_RED)
 			min_value = USB_CH_IP_CUR_LVL_0P05;
 		break;
-	case 500:
+	case 500000:
 		if (di->vbat < VBAT_TRESH_IP_CUR_RED)
 			min_value = USB_CH_IP_CUR_LVL_0P45;
 		break;
···
 		break;
 	}
 
-	dev_info(di->dev, "VBUS input current limit set to %d mA\n", min_value);
+	dev_info(di->dev, "VBUS input current limit set to %d uA\n", min_value);
 
 	mutex_lock(&di->usb_ipt_crnt_lock);
 	ret = ab8500_charger_set_current(di, min_value,
···
 /**
  * ab8500_charger_set_main_in_curr() - set main charger input current
  * @di:		pointer to the ab8500_charger structure
- * @ich_in:	input charger current, in mA
+ * @ich_in_ua:	input charger current, in uA
  *
  * Set main charger input current.
  * Returns error code in case of failure else 0(on success)
  */
 static int ab8500_charger_set_main_in_curr(struct ab8500_charger *di,
-	int ich_in)
+	int ich_in_ua)
 {
-	return ab8500_charger_set_current(di, ich_in,
+	return ab8500_charger_set_current(di, ich_in_ua,
 		AB8500_MCH_IPT_CURLVL_REG);
 }
 
 /**
  * ab8500_charger_set_output_curr() - set charger output current
  * @di:		pointer to the ab8500_charger structure
- * @ich_out:	output charger current, in mA
+ * @ich_out_ua:	output charger current, in uA
  *
  * Set charger output current.
  * Returns error code in case of failure else 0(on success)
  */
 static int ab8500_charger_set_output_curr(struct ab8500_charger *di,
-	int ich_out)
+	int ich_out_ua)
 {
-	return ab8500_charger_set_current(di, ich_out,
+	return ab8500_charger_set_current(di, ich_out_ua,
 		AB8500_CH_OPT_CRNTLVL_REG);
 }
 
···
  * ab8500_charger_ac_en() - enable or disable ac charging
  * @di:		pointer to the ab8500_charger structure
  * @enable:	enable/disable flag
- * @vset:	charging voltage
- * @iset:	charging current
+ * @vset_uv:	charging voltage in microvolt
+ * @iset_ua:	charging current in microampere
  *
  * Enable/Disable AC/Mains charging and turns on/off the charging led
  * respectively.
  **/
 static int ab8500_charger_ac_en(struct ux500_charger *charger,
-	int enable, int vset, int iset)
+	int enable, int vset_uv, int iset_ua)
 {
 	int ret;
 	int volt_index;
···
 		}
 
 		/* Enable AC charging */
-		dev_dbg(di->dev, "Enable AC: %dmV %dmA\n", vset, iset);
+		dev_dbg(di->dev, "Enable AC: %duV %duA\n", vset_uv, iset_ua);
 
 		/*
 		 * Due to a bug in AB8500, BTEMP_HIGH/LOW interrupts
···
 		}
 
 		/* Check if the requested voltage or current is valid */
-		volt_index = ab8500_voltage_to_regval(vset);
-		curr_index = ab8500_current_to_regval(di, iset);
+		volt_index = ab8500_voltage_to_regval(vset_uv);
+		curr_index = ab8500_current_to_regval(di, iset_ua);
 		input_curr_index = ab8500_current_to_regval(di,
-			di->bm->chg_params->ac_curr_max);
+			di->bm->chg_params->ac_curr_max_ua);
 		if (volt_index < 0 || curr_index < 0 || input_curr_index < 0) {
 			dev_err(di->dev,
 				"Charger voltage or current too high, "
···
 		}
 		/* MainChInputCurr: current that can be drawn from the charger*/
 		ret = ab8500_charger_set_main_in_curr(di,
-			di->bm->chg_params->ac_curr_max);
+			di->bm->chg_params->ac_curr_max_ua);
 		if (ret) {
 			dev_err(di->dev, "%s Failed to set MainChInputCurr\n",
 				__func__);
 			return ret;
 		}
 		/* ChOutputCurentLevel: protected output current */
-		ret = ab8500_charger_set_output_curr(di, iset);
+		ret = ab8500_charger_set_output_curr(di, iset_ua);
 		if (ret) {
 			dev_err(di->dev, "%s "
 				"Failed to set ChOutputCurentLevel\n",
···
  * ab8500_charger_usb_en() - enable usb charging
  * @di:		pointer to the ab8500_charger structure
  * @enable:	enable/disable flag
- * @vset:	charging voltage
- * @ich_out:	charger output current
+ * @vset_uv:	charging voltage in microvolt
+ * @ich_out_ua:	charger output current in microampere
  *
  * Enable/Disable USB charging and turns on/off the charging led respectively.
  * Returns error code in case of failure else 0(on success)
  */
 static int ab8500_charger_usb_en(struct ux500_charger *charger,
-	int enable, int vset, int ich_out)
+	int enable, int vset_uv, int ich_out_ua)
 {
 	int ret;
 	int volt_index;
···
 		}
 
 		/* Enable USB charging */
-		dev_dbg(di->dev, "Enable USB: %dmV %dmA\n", vset, ich_out);
+		dev_dbg(di->dev, "Enable USB: %d uV %d uA\n", vset_uv, ich_out_ua);
 
 		/* Check if the requested voltage or current is valid */
-		volt_index = ab8500_voltage_to_regval(vset);
-		curr_index = ab8500_current_to_regval(di, ich_out);
+		volt_index = ab8500_voltage_to_regval(vset_uv);
+		curr_index = ab8500_current_to_regval(di, ich_out_ua);
 		if (volt_index < 0 || curr_index < 0) {
 			dev_err(di->dev,
 				"Charger voltage or current too high, "
···
 
 		/* USBChInputCurr: current that can be drawn from the usb */
 		ret = ab8500_charger_set_vbus_in_curr(di,
-					di->max_usb_in_curr.usb_type_max);
+					di->max_usb_in_curr.usb_type_max_ua);
 		if (ret) {
 			dev_err(di->dev, "setting USBChInputCurr failed\n");
 			return ret;
 		}
 
 		/* ChOutputCurentLevel: protected output current */
-		ret = ab8500_charger_set_output_curr(di, ich_out);
+		ret = ab8500_charger_set_output_curr(di, ich_out_ua);
 		if (ret) {
 			dev_err(di->dev, "%s "
 				"Failed to set ChOutputCurentLevel\n",
···
 /**
  * ab8500_charger_usb_check_enable() - enable usb charging
  * @charger:	pointer to the ux500_charger structure
- * @vset:	charging voltage
- * @iset:	charger output current
+ * @vset_uv:	charging voltage in microvolt
+ * @iset_ua:	charger output current in microampere
  *
  * Check if the VBUS charger has been disconnected and reconnected without
  * AB8500 rising an interrupt. Returns 0 on success.
  */
 static int ab8500_charger_usb_check_enable(struct ux500_charger *charger,
-	int vset, int iset)
+	int vset_uv, int iset_ua)
 {
 	u8 usbch_ctrl1 = 0;
 	int ret = 0;
···
 			return ret;
 		}
 
-		ret = ab8500_charger_usb_en(&di->usb_chg, true, vset, iset);
+		ret = ab8500_charger_usb_en(&di->usb_chg, true, vset_uv, iset_ua);
 		if (ret < 0) {
 			dev_err(di->dev, "Failed to enable VBUS charger %d\n",
 					__LINE__);
···
 /**
  * ab8500_charger_ac_check_enable() - enable usb charging
  * @charger:	pointer to the ux500_charger structure
- * @vset:	charging voltage
- * @iset:	charger output current
+ * @vset_uv:	charging voltage in microvolt
+ * @iset_ua:	charger output current in micrompere
  *
  * Check if the AC charger has been disconnected and reconnected without
  * AB8500 rising an interrupt. Returns 0 on success.
  */
 static int ab8500_charger_ac_check_enable(struct ux500_charger *charger,
-	int vset, int iset)
+	int vset_uv, int iset_ua)
 {
 	u8 mainch_ctrl1 = 0;
 	int ret = 0;
···
 			return ret;
 		}
 
-		ret = ab8500_charger_ac_en(&di->usb_chg, true, vset, iset);
+		ret = ab8500_charger_ac_en(&di->usb_chg, true, vset_uv, iset_ua);
 		if (ret < 0) {
 			dev_err(di->dev, "failed to enable AC charger %d\n",
 				__LINE__);
···
 
 /**
  * ab8500_charger_update_charger_current() - update charger current
- * @di:		pointer to the ab8500_charger structure
+ * @charger:		pointer to the ab8500_charger structure
+ * @ich_out_ua:		desired output current in microampere
  *
  * Update the charger output current for the specified charger
  * Returns error code in case of failure else 0(on success)
  */
 static int ab8500_charger_update_charger_current(struct ux500_charger *charger,
-		int ich_out)
+		int ich_out_ua)
 {
 	int ret;
 	struct ab8500_charger *di;
···
 	else
 		return -ENXIO;
 
-	ret = ab8500_charger_set_output_curr(di, ich_out);
+	ret = ab8500_charger_set_output_curr(di, ich_out_ua);
 	if (ret) {
 		dev_err(di->dev, "%s "
 			"Failed to set ChOutputCurentLevel\n",
···
 		di->vbat > VBAT_TRESH_IP_CUR_RED))) {
 
 		dev_dbg(di->dev, "Vbat did cross threshold, curr: %d, new: %d,"
-			" old: %d\n", di->max_usb_in_curr.usb_type_max,
+			" old: %d\n", di->max_usb_in_curr.usb_type_max_ua,
 			di->vbat, di->old_vbat);
 		ab8500_charger_set_vbus_in_curr(di,
-					di->max_usb_in_curr.usb_type_max);
+					di->max_usb_in_curr.usb_type_max_ua);
 		power_supply_changed(di->usb_chg.psy);
 	}
 
···
 	/* Update maximum input current if USB enumeration is not detected */
 	if (!di->usb.charger_online) {
 		ret = ab8500_charger_set_vbus_in_curr(di,
-					di->max_usb_in_curr.usb_type_max);
+					di->max_usb_in_curr.usb_type_max_ua);
 		if (ret)
 			return;
 	}
···
 
 	spin_lock_irqsave(&di->usb_state.usb_lock, flags);
 	di->usb_state.state = di->usb_state.state_tmp;
-	di->usb_state.usb_current = di->usb_state.usb_current_tmp;
+	di->usb_state.usb_current_ua = di->usb_state.usb_current_tmp_ua;
 	spin_unlock_irqrestore(&di->usb_state.usb_lock, flags);
 
-	dev_dbg(di->dev, "%s USB state: 0x%02x mA: %d\n",
-		__func__, di->usb_state.state, di->usb_state.usb_current);
+	dev_dbg(di->dev, "%s USB state: 0x%02x uA: %d\n",
+		__func__, di->usb_state.state, di->usb_state.usb_current_ua);
 
 	switch (di->usb_state.state) {
 	case AB8500_BM_USB_STATE_RESET_HS:
···
 		if (!ab8500_charger_get_usb_cur(di)) {
 			/* Update maximum input current */
 			ret = ab8500_charger_set_vbus_in_curr(di,
-					di->max_usb_in_curr.usb_type_max);
+					di->max_usb_in_curr.usb_type_max_ua);
 			if (ret)
 				return;
 
···
 {
 	struct ab8500_charger *di = container_of(work,
 		struct ab8500_charger, vbus_drop_end_work.work);
-	int ret, curr;
+	int ret, curr_ua;
 	u8 reg_value;
 
 	di->flags.vbus_drop_end = false;
···
 		return;
 	}
 
-	curr = di->bm->chg_input_curr[
+	curr_ua = ab8500_charge_input_curr_map[
 		reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT];
 
-	if (di->max_usb_in_curr.calculated_max != curr) {
+	if (di->max_usb_in_curr.calculated_max_ua != curr_ua) {
 		/* USB source is collapsing */
-		di->max_usb_in_curr.calculated_max = curr;
+		di->max_usb_in_curr.calculated_max_ua = curr_ua;
 		dev_dbg(di->dev,
-			 "VBUS input current limiting to %d mA\n",
-			 di->max_usb_in_curr.calculated_max);
+			 "VBUS input current limiting to %d uA\n",
+			 di->max_usb_in_curr.calculated_max_ua);
 	} 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;
+		di->max_usb_in_curr.set_max_ua =
+			di->max_usb_in_curr.calculated_max_ua;
 		dev_dbg(di->dev,
-			 "VBUS input current limited to %d mA\n",
-			 di->max_usb_in_curr.set_max);
+			 "VBUS input current limited to %d uA\n",
+			 di->max_usb_in_curr.set_max_ua);
 	}
 
 	if (di->usb.charger_connected)
 		ab8500_charger_set_vbus_in_curr(di,
-					di->max_usb_in_curr.usb_type_max);
+					di->max_usb_in_curr.usb_type_max_ua);
 }
 
 /**
···
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 		ret = ab8500_charger_get_ac_voltage(di);
 		if (ret >= 0)
-			di->ac.charger_voltage = ret;
+			di->ac.charger_voltage_uv = ret;
 		/* On error, use previous value */
-		val->intval = di->ac.charger_voltage * 1000;
+		val->intval = di->ac.charger_voltage_uv;
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
 		/*
···
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
 		ret = ab8500_charger_get_ac_current(di);
 		if (ret >= 0)
-			di->ac.charger_current = ret;
-		val->intval = di->ac.charger_current * 1000;
+			di->ac.charger_current_ua = ret;
+		val->intval = di->ac.charger_current_ua;
 		break;
 	default:
 		return -EINVAL;
···
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 		ret = ab8500_charger_get_vbus_voltage(di);
 		if (ret >= 0)
-			di->usb.charger_voltage = ret;
-		val->intval = di->usb.charger_voltage * 1000;
+			di->usb.charger_voltage_uv = ret;
+		val->intval = di->usb.charger_voltage_uv;
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
 		/*
···
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
 		ret = ab8500_charger_get_usb_current(di);
 		if (ret >= 0)
-			di->usb.charger_current = ret;
-		val->intval = di->usb.charger_current * 1000;
+			di->usb.charger_current_ua = ret;
+		val->intval = di->usb.charger_current_ua;
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_AVG:
 		/*
···
 	struct ab8500_charger *di =
 		container_of(nb, struct ab8500_charger, nb);
 	enum ab8500_usb_state bm_usb_state;
+	/*
+	 * FIXME: it appears the AB8500 PHY never sends what it should here.
+	 * Fix the PHY driver to properly notify the desired current.
+	 * Also broadcast microampere and not milliampere.
+	 */
 	unsigned mA = *((unsigned *)power);
 
 	if (event != USB_EVENT_VBUS) {
···
 	/* TODO: State is fabricate  here. See if charger really needs USB
 	 * state or if mA is enough
 	 */
-	if ((di->usb_state.usb_current == 2) && (mA > 2))
+	if ((di->usb_state.usb_current_ua == 2000) && (mA > 2))
 		bm_usb_state = AB8500_BM_USB_STATE_RESUME;
 	else if (mA == 0)
 		bm_usb_state = AB8500_BM_USB_STATE_RESET_HS;
···
 
 	spin_lock(&di->usb_state.usb_lock);
 	di->usb_state.state_tmp = bm_usb_state;
-	di->usb_state.usb_current_tmp = mA;
+	/* FIXME: broadcast ua instead, see above */
+	di->usb_state.usb_current_tmp_ua = mA * 1000;
 	spin_unlock(&di->usb_state.usb_lock);
 
 	/*
···
 
 	di->bm = &ab8500_bm_data;
 
-	ret = ab8500_bm_of_probe(dev, np, di->bm);
-	if (ret) {
-		dev_err(dev, "failed to get battery information\n");
-		return ret;
-	}
 	di->autopower_cfg = of_property_read_bool(np, "autopower_cfg");
 
 	/* get parent data */
···
 	di->invalid_charger_detect_state = 0;
 
 	/* AC and USB supply config */
+	ac_psy_cfg.of_node = np;
 	ac_psy_cfg.supplied_to = supply_interface;
 	ac_psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
 	ac_psy_cfg.drv_data = &di->ac_chg;
+	usb_psy_cfg.of_node = np;
 	usb_psy_cfg.supplied_to = supply_interface;
 	usb_psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
 	usb_psy_cfg.drv_data = &di->usb_chg;
···
 	di->ac_chg.ops.check_enable = &ab8500_charger_ac_check_enable;
 	di->ac_chg.ops.kick_wd = &ab8500_charger_watchdog_kick;
 	di->ac_chg.ops.update_curr = &ab8500_charger_update_charger_current;
-	di->ac_chg.max_out_volt = ab8500_charger_voltage_map[
+	di->ac_chg.max_out_volt_uv = ab8500_charger_voltage_map[
 		ARRAY_SIZE(ab8500_charger_voltage_map) - 1];
-	di->ac_chg.max_out_curr =
-		di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1];
+	di->ac_chg.max_out_curr_ua =
+		ab8500_charge_output_curr_map[ARRAY_SIZE(ab8500_charge_output_curr_map) - 1];
 	di->ac_chg.wdt_refresh = CHG_WD_INTERVAL;
 	/*
 	 * The AB8505 only supports USB charging. If we are not the
···
 	di->usb_chg.ops.check_enable = &ab8500_charger_usb_check_enable;
 	di->usb_chg.ops.kick_wd = &ab8500_charger_watchdog_kick;
 	di->usb_chg.ops.update_curr = &ab8500_charger_update_charger_current;
-	di->usb_chg.max_out_volt = ab8500_charger_voltage_map[
+	di->usb_chg.max_out_volt_uv = ab8500_charger_voltage_map[
 		ARRAY_SIZE(ab8500_charger_voltage_map) - 1];
-	di->usb_chg.max_out_curr =
-		di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1];
+	di->usb_chg.max_out_curr_ua =
+		ab8500_charge_output_curr_map[ARRAY_SIZE(ab8500_charge_output_curr_map) - 1];
 	di->usb_chg.wdt_refresh = CHG_WD_INTERVAL;
 	di->usb_chg.external = false;
-	di->usb_state.usb_current = -1;
+	di->usb_state.usb_current_ua = -1;
 
 	mutex_init(&di->charger_attached_mutex);
 
···
 		return PTR_ERR(di->usb_chg.psy);
 	}
 
+	/*
+	 * Check what battery we have, since we always have the USB
+	 * psy, use that as a handle.
+	 */
+	ret = ab8500_bm_of_probe(di->usb_chg.psy, di->bm);
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "failed to get battery information\n");
+
 	/* Identify the connected charger types during startup */
 	charger_status = ab8500_charger_detect_chargers(di, true);
 	if (charger_status & AC_PW_CONN) {
···
 	}
 	if (!match) {
 		dev_err(dev, "no matching components\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto remove_ab8500_bm;
 	}
 	if (IS_ERR(match)) {
 		dev_err(dev, "could not create component match\n");
-		return PTR_ERR(match);
+		ret = PTR_ERR(match);
+		goto remove_ab8500_bm;
 	}
 
 	/* Notifier for external charger enabling */
···
 	if (!di->ac_chg.enabled)
 		blocking_notifier_chain_unregister(
 			&charger_notifier_list, &charger_nb);
+remove_ab8500_bm:
+	ab8500_bm_of_remove(di->usb_chg.psy, di->bm);
 	return ret;
 }
 
···
 	component_master_del(&pdev->dev, &ab8500_charger_comp_ops);
 
 	usb_unregister_notifier(di->usb_phy, &di->nb);
+	ab8500_bm_of_remove(di->usb_chg.psy, di->bm);
 	usb_put_phy(di->usb_phy);
 	if (!di->ac_chg.enabled)
 		blocking_notifier_chain_unregister(

drivers/power/supply/ab8500_fg.c

···
 
 #include "ab8500-bm.h"
 
-#define MILLI_TO_MICRO			1000
 #define FG_LSB_IN_MA			1627
 #define QLSB_NANO_AMP_HOURS_X10		1071
 #define INS_CURR_TIMEOUT		(3 * HZ)
···
  * @dev:		Pointer to the structure device
  * @node:		a list of AB8500 FGs, hence prepared for reentrance
  * @irq			holds the CCEOC interrupt number
- * @vbat:		Battery voltage in mV
- * @vbat_nom:		Nominal battery voltage in mV
- * @inst_curr:		Instantenous battery current in mA
- * @avg_curr:		Average battery current in mA
+ * @vbat_uv:		Battery voltage in uV
+ * @vbat_nom_uv:	Nominal battery voltage in uV
+ * @inst_curr_ua:	Instantenous battery current in uA
+ * @avg_curr_ua:	Average battery current in uA
  * @bat_temp		battery temperature
  * @fg_samples:		Number of samples used in the FG accumulation
  * @accu_charge:	Accumulated charge from the last conversion
···
 	struct device *dev;
 	struct list_head node;
 	int irq;
-	int vbat;
-	int vbat_nom;
-	int inst_curr;
-	int avg_curr;
+	int vbat_uv;
+	int vbat_nom_uv;
+	int inst_curr_ua;
+	int avg_curr_ua;
 	int bat_temp;
 	int fg_samples;
 	int accu_charge;
···
 
 /*
  * This array maps the raw hex value to lowbat voltage used by the AB8500
- * Values taken from the UM0836
+ * Values taken from the UM0836, in microvolts.
  */
 static int ab8500_fg_lowbat_voltage_map[] = {
-	2300 ,
-	2325 ,
-	2350 ,
-	2375 ,
-	2400 ,
-	2425 ,
-	2450 ,
-	2475 ,
-	2500 ,
-	2525 ,
-	2550 ,
-	2575 ,
-	2600 ,
-	2625 ,
-	2650 ,
-	2675 ,
-	2700 ,
-	2725 ,
-	2750 ,
-	2775 ,
-	2800 ,
-	2825 ,
-	2850 ,
-	2875 ,
-	2900 ,
-	2925 ,
-	2950 ,
-	2975 ,
-	3000 ,
-	3025 ,
-	3050 ,
-	3075 ,
-	3100 ,
-	3125 ,
-	3150 ,
-	3175 ,
-	3200 ,
-	3225 ,
-	3250 ,
-	3275 ,
-	3300 ,
-	3325 ,
-	3350 ,
-	3375 ,
-	3400 ,
-	3425 ,
-	3450 ,
-	3475 ,
-	3500 ,
-	3525 ,
-	3550 ,
-	3575 ,
-	3600 ,
-	3625 ,
-	3650 ,
-	3675 ,
-	3700 ,
-	3725 ,
-	3750 ,
-	3775 ,
-	3800 ,
-	3825 ,
-	3850 ,
-	3850 ,
+	2300000,
+	2325000,
+	2350000,
+	2375000,
+	2400000,
+	2425000,
+	2450000,
+	2475000,
+	2500000,
+	2525000,
+	2550000,
+	2575000,
+	2600000,
+	2625000,
+	2650000,
+	2675000,
+	2700000,
+	2725000,
+	2750000,
+	2775000,
+	2800000,
+	2825000,
+	2850000,
+	2875000,
+	2900000,
+	2925000,
+	2950000,
+	2975000,
+	3000000,
+	3025000,
+	3050000,
+	3075000,
+	3100000,
+	3125000,
+	3150000,
+	3175000,
+	3200000,
+	3225000,
+	3250000,
+	3275000,
+	3300000,
+	3325000,
+	3350000,
+	3375000,
+	3400000,
+	3425000,
+	3450000,
+	3475000,
+	3500000,
+	3525000,
+	3550000,
+	3575000,
+	3600000,
+	3625000,
+	3650000,
+	3675000,
+	3700000,
+	3725000,
+	3750000,
+	3775000,
+	3800000,
+	3825000,
+	3850000,
+	3850000,
 };
 
-static u8 ab8500_volt_to_regval(int voltage)
+static u8 ab8500_volt_to_regval(int voltage_uv)
 {
 	int i;
 
-	if (voltage < ab8500_fg_lowbat_voltage_map[0])
+	if (voltage_uv < ab8500_fg_lowbat_voltage_map[0])
 		return 0;
 
 	for (i = 0; i < ARRAY_SIZE(ab8500_fg_lowbat_voltage_map); i++) {
-		if (voltage < ab8500_fg_lowbat_voltage_map[i])
+		if (voltage_uv < ab8500_fg_lowbat_voltage_map[i])
 			return (u8) i - 1;
 	}
 
···
 /**
  * ab8500_fg_is_low_curr() - Low or high current mode
  * @di:		pointer to the ab8500_fg structure
- * @curr:	the current to base or our decision on
+ * @curr_ua:	the current to base or our decision on in microampere
  *
  * Low current mode if the current consumption is below a certain threshold
  */
-static int ab8500_fg_is_low_curr(struct ab8500_fg *di, int curr)
+static int ab8500_fg_is_low_curr(struct ab8500_fg *di, int curr_ua)
 {
 	/*
 	 * We want to know if we're in low current mode
 	 */
-	if (curr > -di->bm->fg_params->high_curr_threshold)
+	if (curr_ua > -di->bm->fg_params->high_curr_threshold_ua)
 		return true;
 	else
 		return false;
···
 /**
  * ab8500_fg_inst_curr_finalize() - battery instantaneous current
  * @di:         pointer to the ab8500_fg structure
- * @res:	battery instantenous current(on success)
+ * @curr_ua:	battery instantenous current in microampere (on success)
  *
  * Returns 0 or an error code
  * Note: This is part "two" and has to be called at earliest 250 ms
  * after ab8500_fg_inst_curr_start()
  */
-int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res)
+int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *curr_ua)
 {
 	u8 low, high;
 	int val;
···
 	/*
 	 * Convert to unit value in mA
 	 * Full scale input voltage is
-	 * 63.160mV => LSB = 63.160mV/(4096*res) = 1.542mA
+	 * 63.160mV => LSB = 63.160mV/(4096*res) = 1.542.000 uA
 	 * Given a 250ms conversion cycle time the LSB corresponds
 	 * to 107.1 nAh. Convert to current by dividing by the conversion
 	 * time in hours (250ms = 1 / (3600 * 4)h)
 	 * 107.1nAh assumes 10mOhm, but fg_res is in 0.1mOhm
 	 */
-	val = (val * QLSB_NANO_AMP_HOURS_X10 * 36 * 4) /
-		(1000 * di->bm->fg_res);
+	val = (val * QLSB_NANO_AMP_HOURS_X10 * 36 * 4) / di->bm->fg_res;
 
 	if (di->turn_off_fg) {
 		dev_dbg(di->dev, "%s Disable FG\n", __func__);
···
 			goto fail;
 	}
 	mutex_unlock(&di->cc_lock);
-	(*res) = val;
+	*curr_ua = val;
 
 	return 0;
 fail:
···
 /**
  * ab8500_fg_inst_curr_blocking() - battery instantaneous current
  * @di:         pointer to the ab8500_fg structure
- * @res:	battery instantenous current(on success)
  *
- * Returns 0 else error code
+ * Returns battery instantenous current in microampere (on success)
+ * else error code
  */
 int ab8500_fg_inst_curr_blocking(struct ab8500_fg *di)
 {
 	int ret;
 	unsigned long timeout;
-	int res = 0;
+	int curr_ua = 0;
 
 	ret = ab8500_fg_inst_curr_start(di);
 	if (ret) {
···
 		}
 	}
 
-	ret = ab8500_fg_inst_curr_finalize(di, &res);
+	ret = ab8500_fg_inst_curr_finalize(di, &curr_ua);
 	if (ret) {
 		dev_err(di->dev, "Failed to finalize fg_inst\n");
 		return 0;
 	}
 
-	dev_dbg(di->dev, "%s instant current: %d", __func__, res);
-	return res;
+	dev_dbg(di->dev, "%s instant current: %d uA", __func__, curr_ua);
+	return curr_ua;
 fail:
 	disable_irq(di->irq);
 	mutex_unlock(&di->cc_lock);
···
 		(100 * di->bm->fg_res);
 
 	/*
-	 * Convert to unit value in mA
+	 * Convert to unit value in uA
 	 * by dividing by the conversion
 	 * time in hours (= samples / (3600 * 4)h)
-	 * and multiply with 1000
 	 */
-	di->avg_curr = (val * QLSB_NANO_AMP_HOURS_X10 * 36) /
-		(1000 * di->bm->fg_res * (di->fg_samples / 4));
+	di->avg_curr_ua = (val * QLSB_NANO_AMP_HOURS_X10 * 36) /
+		(di->bm->fg_res * (di->fg_samples / 4));
 
 	di->flags.conv_done = true;
 
···
  * ab8500_fg_bat_voltage() - get battery voltage
  * @di:		pointer to the ab8500_fg structure
  *
- * Returns battery voltage(on success) else error code
+ * Returns battery voltage in microvolts (on success) else error code
  */
 static int ab8500_fg_bat_voltage(struct ab8500_fg *di)
 {
···
 		return prev;
 	}
 
+	/* IIO returns millivolts but we want microvolts */
+	vbat *= 1000;
 	prev = vbat;
 	return vbat;
 }
···
 /**
  * ab8500_fg_volt_to_capacity() - Voltage based capacity
  * @di:		pointer to the ab8500_fg structure
- * @voltage:	The voltage to convert to a capacity
+ * @voltage_uv:	The voltage to convert to a capacity in microvolt
  *
  * Returns battery capacity in per mille based on voltage
  */
-static int ab8500_fg_volt_to_capacity(struct ab8500_fg *di, int voltage)
+static int ab8500_fg_volt_to_capacity(struct ab8500_fg *di, int voltage_uv)
 {
-	int i, tbl_size;
-	const struct ab8500_v_to_cap *tbl;
-	int cap = 0;
+	struct power_supply_battery_info *bi = di->bm->bi;
 
-	tbl = di->bm->bat_type[di->bm->batt_id].v_to_cap_tbl;
-	tbl_size = di->bm->bat_type[di->bm->batt_id].n_v_cap_tbl_elements;
-
-	for (i = 0; i < tbl_size; ++i) {
-		if (voltage > tbl[i].voltage)
-			break;
-	}
-
-	if ((i > 0) && (i < tbl_size)) {
-		cap = fixp_linear_interpolate(
-			tbl[i].voltage,
-			tbl[i].capacity * 10,
-			tbl[i-1].voltage,
-			tbl[i-1].capacity * 10,
-			voltage);
-	} else if (i == 0) {
-		cap = 1000;
-	} else {
-		cap = 0;
-	}
-
-	dev_dbg(di->dev, "%s Vbat: %d, Cap: %d per mille",
-		__func__, voltage, cap);
-
-	return cap;
+	/* Multiply by 10 because the capacity is tracked in per mille */
+	return power_supply_batinfo_ocv2cap(bi, voltage_uv, di->bat_temp) *  10;
 }
 
 /**
···
  */
 static int ab8500_fg_uncomp_volt_to_capacity(struct ab8500_fg *di)
 {
-	di->vbat = ab8500_fg_bat_voltage(di);
-	return ab8500_fg_volt_to_capacity(di, di->vbat);
+	di->vbat_uv = ab8500_fg_bat_voltage(di);
+	return ab8500_fg_volt_to_capacity(di, di->vbat_uv);
 }
 
 /**
···
  * @di:		pointer to the ab8500_fg structure
  *
  * Returns battery inner resistance added with the fuel gauge resistor value
- * to get the total resistance in the whole link from gnd to bat+ node.
+ * to get the total resistance in the whole link from gnd to bat+ node
+ * in milliohm.
  */
 static int ab8500_fg_battery_resistance(struct ab8500_fg *di)
 {
-	int i, tbl_size;
-	const struct batres_vs_temp *tbl;
-	int resist = 0;
+	struct power_supply_battery_info *bi = di->bm->bi;
+	int resistance_percent = 0;
+	int resistance;
 
-	tbl = di->bm->bat_type[di->bm->batt_id].batres_tbl;
-	tbl_size = di->bm->bat_type[di->bm->batt_id].n_batres_tbl_elements;
-
-	for (i = 0; i < tbl_size; ++i) {
-		if (di->bat_temp / 10 > tbl[i].temp)
-			break;
-	}
-
-	if ((i > 0) && (i < tbl_size)) {
-		resist = fixp_linear_interpolate(
-			tbl[i].temp,
-			tbl[i].resist,
-			tbl[i-1].temp,
-			tbl[i-1].resist,
-			di->bat_temp / 10);
-	} else if (i == 0) {
-		resist = tbl[0].resist;
-	} else {
-		resist = tbl[tbl_size - 1].resist;
-	}
+	resistance_percent = power_supply_temp2resist_simple(bi->resist_table,
+						 bi->resist_table_size,
+						 di->bat_temp / 10);
+	/*
+	 * We get a percentage of factory resistance here so first get
+	 * the factory resistance in milliohms then calculate how much
+	 * resistance we have at this temperature.
+	 */
+	resistance = (bi->factory_internal_resistance_uohm / 1000);
+	resistance = resistance * resistance_percent / 100;
 
 	dev_dbg(di->dev, "%s Temp: %d battery internal resistance: %d"
 	    " fg resistance %d, total: %d (mOhm)\n",
-		__func__, di->bat_temp, resist, di->bm->fg_res / 10,
-		(di->bm->fg_res / 10) + resist);
+		__func__, di->bat_temp, resistance, di->bm->fg_res / 10,
+		(di->bm->fg_res / 10) + resistance);
 
 	/* fg_res variable is in 0.1mOhm */
-	resist += di->bm->fg_res / 10;
+	resistance += di->bm->fg_res / 10;
 
-	return resist;
+	return resistance;
 }
 
 /**
···
  */
 static int ab8500_fg_load_comp_volt_to_capacity(struct ab8500_fg *di)
 {
-	int vbat_comp, res;
+	int vbat_comp_uv, res;
 	int i = 0;
-	int vbat = 0;
+	int vbat_uv = 0;
 
 	ab8500_fg_inst_curr_start(di);
 
 	do {
-		vbat += ab8500_fg_bat_voltage(di);
+		vbat_uv += ab8500_fg_bat_voltage(di);
 		i++;
 		usleep_range(5000, 6000);
 	} while (!ab8500_fg_inst_curr_done(di));
 
-	ab8500_fg_inst_curr_finalize(di, &di->inst_curr);
+	ab8500_fg_inst_curr_finalize(di, &di->inst_curr_ua);
 
-	di->vbat = vbat / i;
+	di->vbat_uv = vbat_uv / i;
 	res = ab8500_fg_battery_resistance(di);
 
-	/* Use Ohms law to get the load compensated voltage */
-	vbat_comp = di->vbat - (di->inst_curr * res) / 1000;
+	/*
+	 * Use Ohms law to get the load compensated voltage.
+	 * Divide by 1000 to get from milliohms to ohms.
+	 */
+	vbat_comp_uv = di->vbat_uv - (di->inst_curr_ua * res) / 1000;
 
-	dev_dbg(di->dev, "%s Measured Vbat: %dmV,Compensated Vbat %dmV, "
-		"R: %dmOhm, Current: %dmA Vbat Samples: %d\n",
-		__func__, di->vbat, vbat_comp, res, di->inst_curr, i);
+	dev_dbg(di->dev, "%s Measured Vbat: %d uV,Compensated Vbat %d uV, "
+		"R: %d mOhm, Current: %d uA Vbat Samples: %d\n",
+		__func__, di->vbat_uv, vbat_comp_uv, res, di->inst_curr_ua, i);
 
-	return ab8500_fg_volt_to_capacity(di, vbat_comp);
+	return ab8500_fg_volt_to_capacity(di, vbat_comp_uv);
 }
 
 /**
···
 	u64 div_res;
 	u32 div_rem;
 
-	div_res = ((u64) cap_mah) * ((u64) di->vbat_nom);
-	div_rem = do_div(div_res, 1000);
+	/*
+	 * Capacity is in milli ampere hours (10^-3)Ah
+	 * Nominal voltage is in microvolts (10^-6)V
+	 * divide by 1000000 after multiplication to get to mWh
+	 */
+	div_res = ((u64) cap_mah) * ((u64) di->vbat_nom_uv);
+	div_rem = do_div(div_res, 1000000);
 
 	/* Make sure to round upwards if necessary */
-	if (div_rem >= 1000 / 2)
+	if (div_rem >= 1000000 / 2)
 		div_res++;
 
 	return (int) div_res;
···
 		ab8500_fg_convert_mah_to_permille(di, di->bat_cap.mah);
 
 	/* We need to update battery voltage and inst current when charging */
-	di->vbat = ab8500_fg_bat_voltage(di);
-	di->inst_curr = ab8500_fg_inst_curr_blocking(di);
+	di->vbat_uv = ab8500_fg_bat_voltage(di);
+	di->inst_curr_ua = ab8500_fg_inst_curr_blocking(di);
 
 	return di->bat_cap.mah;
 }
···
 		 * RECOVERY_SLEEP if time left.
 		 * If high, go to READOUT
 		 */
-		di->inst_curr = ab8500_fg_inst_curr_blocking(di);
+		di->inst_curr_ua = ab8500_fg_inst_curr_blocking(di);
 
-		if (ab8500_fg_is_low_curr(di, di->inst_curr)) {
+		if (ab8500_fg_is_low_curr(di, di->inst_curr_ua)) {
 			if (di->recovery_cnt >
 				di->bm->fg_params->recovery_total_time) {
 				di->fg_samples = SEC_TO_SAMPLE(
···
 		break;
 
 	case AB8500_FG_DISCHARGE_READOUT:
-		di->inst_curr = ab8500_fg_inst_curr_blocking(di);
+		di->inst_curr_ua = ab8500_fg_inst_curr_blocking(di);
 
-		if (ab8500_fg_is_low_curr(di, di->inst_curr)) {
+		if (ab8500_fg_is_low_curr(di, di->inst_curr_ua)) {
 			/* Detect mode change */
 			if (di->high_curr_mode) {
 				di->high_curr_mode = false;
···
 		di->bat_cap.prev_mah,
 		di->bat_cap.prev_percent,
 		di->bat_cap.prev_level,
-		di->vbat,
-		di->inst_curr,
-		di->avg_curr,
+		di->vbat_uv,
+		di->inst_curr_ua,
+		di->avg_curr_ua,
 		di->accu_charge,
 		di->flags.charging,
 		di->charge_state,
···
  */
 static void ab8500_fg_low_bat_work(struct work_struct *work)
 {
-	int vbat;
+	int vbat_uv;
 
 	struct ab8500_fg *di = container_of(work, struct ab8500_fg,
 		fg_low_bat_work.work);
 
-	vbat = ab8500_fg_bat_voltage(di);
+	vbat_uv = ab8500_fg_bat_voltage(di);
 
 	/* Check if LOW_BAT still fulfilled */
-	if (vbat < di->bm->fg_params->lowbat_threshold) {
+	if (vbat_uv < di->bm->fg_params->lowbat_threshold_uv) {
 		/* Is it time to shut down? */
 		if (di->low_bat_cnt < 1) {
 			di->flags.low_bat = true;
···
 	switch (psp) {
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 		if (di->flags.bat_ovv)
-			val->intval = BATT_OVV_VALUE * 1000;
+			val->intval = BATT_OVV_VALUE;
 		else
-			val->intval = di->vbat * 1000;
+			val->intval = di->vbat_uv;
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
-		val->intval = di->inst_curr * 1000;
+		val->intval = di->inst_curr_ua;
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_AVG:
-		val->intval = di->avg_curr * 1000;
+		val->intval = di->avg_curr_ua;
 		break;
 	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
 		val->intval = ab8500_fg_convert_mah_to_uwh(di,
···
 	struct power_supply *ext = dev_get_drvdata(dev);
 	const char **supplicants = (const char **)ext->supplied_to;
 	struct ab8500_fg *di;
+	struct power_supply_battery_info *bi;
 	union power_supply_propval ret;
 	int j;
 
 	psy = (struct power_supply *)data;
 	di = power_supply_get_drvdata(psy);
+	bi = di->bm->bi;
 
 	/*
 	 * For all psy where the name of your driver
···
 			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				if (!di->flags.batt_id_received &&
-				    di->bm->batt_id != BATTERY_UNKNOWN) {
+				    (bi && (bi->technology !=
+					    POWER_SUPPLY_TECHNOLOGY_UNKNOWN))) {
 					const struct ab8500_battery_type *b;
 
-					b = &(di->bm->bat_type[di->bm->batt_id]);
+					b = di->bm->bat_type;
 
 					di->flags.batt_id_received = true;
 
 					di->bat_cap.max_mah_design =
-						MILLI_TO_MICRO *
-						b->charge_full_design;
+						di->bm->bi->charge_full_design_uah;
 
 					di->bat_cap.max_mah =
 						di->bat_cap.max_mah_design;
 
-					di->vbat_nom = b->nominal_voltage;
+					di->vbat_nom_uv =
+						di->bm->bi->voltage_max_design_uv;
 				}
 
 				if (ret.intval)
···
 		AB8500_SYS_CTRL2_BLOCK,
 		AB8500_LOW_BAT_REG,
 		ab8500_volt_to_regval(
-			di->bm->fg_params->lowbat_threshold) << 1 |
+			di->bm->fg_params->lowbat_threshold_uv) << 1 |
 		LOW_BAT_ENABLE);
 	if (ret) {
 		dev_err(di->dev, "%s write failed\n", __func__);
···
 		return -ENOMEM;
 	}
 
+	di->bat_cap.max_mah_design = di->bm->bi->charge_full_design_uah;
+	di->bat_cap.max_mah = di->bat_cap.max_mah_design;
+	di->vbat_nom_uv = di->bm->bi->voltage_max_design_uv;
+
 	/* Start the coulomb counter */
 	ab8500_fg_coulomb_counter(di, true);
 	/* Run the FG algorithm */
···
 	psy_cfg.supplied_to = supply_interface;
 	psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
 	psy_cfg.drv_data = di;
-
-	di->bat_cap.max_mah_design = MILLI_TO_MICRO *
-		di->bm->bat_type[di->bm->batt_id].charge_full_design;
-
-	di->bat_cap.max_mah = di->bat_cap.max_mah_design;
-
-	di->vbat_nom = di->bm->bat_type[di->bm->batt_id].nominal_voltage;
 
 	di->init_capacity = true;
 

drivers/power/supply/axp20x_battery.c

···
 {
 	struct axp20x_batt_ps *axp20x_batt;
 	struct power_supply_config psy_cfg = {};
-	struct power_supply_battery_info info;
+	struct power_supply_battery_info *info;
 	struct device *dev = &pdev->dev;
 
 	if (!of_device_is_available(pdev->dev.of_node))
···
 	}
 
 	if (!power_supply_get_battery_info(axp20x_batt->batt, &info)) {
-		int vmin = info.voltage_min_design_uv;
-		int ccc = info.constant_charge_current_max_ua;
+		int vmin = info->voltage_min_design_uv;
+		int ccc = info->constant_charge_current_max_ua;
 
 		if (vmin > 0 && axp20x_set_voltage_min_design(axp20x_batt,
 							      vmin))

drivers/power/supply/bd99954-charger.c

···
 static int bd9995x_fw_probe(struct bd9995x_device *bd)
 {
 	int ret;
-	struct power_supply_battery_info info;
+	struct power_supply_battery_info *info;
 	u32 property;
 	int i;
 	int regval;
···
 	struct battery_init battery_inits[] = {
 		{
 			.name = "trickle-charging current",
-			.info_data = &info.tricklecharge_current_ua,
 			.range = &charging_current_ranges[0],
 			.ranges = 2,
 			.data = &init->itrich_set,
 		}, {
 			.name = "pre-charging current",
-			.info_data = &info.precharge_current_ua,
 			.range = &charging_current_ranges[0],
 			.ranges = 2,
 			.data = &init->iprech_set,
 		}, {
 			.name = "pre-to-trickle charge voltage threshold",
-			.info_data = &info.precharge_voltage_max_uv,
 			.range = &trickle_to_pre_threshold_ranges[0],
 			.ranges = 2,
 			.data = &init->vprechg_th_set,
 		}, {
 			.name = "charging termination current",
-			.info_data = &info.charge_term_current_ua,
 			.range = &charging_current_ranges[0],
 			.ranges = 2,
 			.data = &init->iterm_set,
 		}, {
 			.name = "charging re-start voltage",
-			.info_data = &info.charge_restart_voltage_uv,
 			.range = &charge_voltage_regulation_ranges[0],
 			.ranges = 2,
 			.data = &init->vrechg_set,
 		}, {
 			.name = "battery overvoltage limit",
-			.info_data = &info.overvoltage_limit_uv,
 			.range = &charge_voltage_regulation_ranges[0],
 			.ranges = 2,
 			.data = &init->vbatovp_set,
 		}, {
 			.name = "fast-charging max current",
-			.info_data = &info.constant_charge_current_max_ua,
 			.range = &fast_charge_current_ranges[0],
 			.ranges = 1,
 			.data = &init->ichg_set,
 		}, {
 			.name = "fast-charging voltage",
-			.info_data = &info.constant_charge_voltage_max_uv,
 			.range = &charge_voltage_regulation_ranges[0],
 			.ranges = 2,
 			.data = &init->vfastchg_reg_set1,
···
 	if (ret < 0)
 		return ret;
 
+	/* Put pointers to the generic battery info */
+	battery_inits[0].info_data = &info->tricklecharge_current_ua;
+	battery_inits[1].info_data = &info->precharge_current_ua;
+	battery_inits[2].info_data = &info->precharge_voltage_max_uv;
+	battery_inits[3].info_data = &info->charge_term_current_ua;
+	battery_inits[4].info_data = &info->charge_restart_voltage_uv;
+	battery_inits[5].info_data = &info->overvoltage_limit_uv;
+	battery_inits[6].info_data = &info->constant_charge_current_max_ua;
+	battery_inits[7].info_data = &info->constant_charge_voltage_max_uv;
+
 	for (i = 0; i < ARRAY_SIZE(battery_inits); i++) {
 		int val = *battery_inits[i].info_data;
 		const struct linear_range *range = battery_inits[i].range;
···
 			dev_err(bd->dev, "Unsupported value for %s\n",
 				battery_inits[i].name);
 
-			power_supply_put_battery_info(bd->charger, &info);
+			power_supply_put_battery_info(bd->charger, info);
 			return -EINVAL;
 		}
 		if (!found) {
···
 		*(battery_inits[i].data) = regval;
 	}
 
-	power_supply_put_battery_info(bd->charger, &info);
+	power_supply_put_battery_info(bd->charger, info);
 
 	for (i = 0; i < ARRAY_SIZE(props); i++) {
 		ret = device_property_read_u32(bd->dev, props[i].prop,

drivers/power/supply/bq24190_charger.c

···
 static int bq24190_get_config(struct bq24190_dev_info *bdi)
 {
 	const char * const s = "ti,system-minimum-microvolt";
-	struct power_supply_battery_info info = {};
+	struct power_supply_battery_info *info;
 	int v;
 
 	if (device_property_read_u32(bdi->dev, s, &v) == 0) {
···
 
 	if (bdi->dev->of_node &&
 	    !power_supply_get_battery_info(bdi->charger, &info)) {
-		v = info.precharge_current_ua / 1000;
+		v = info->precharge_current_ua / 1000;
 		if (v >= BQ24190_REG_PCTCC_IPRECHG_MIN
 		 && v <= BQ24190_REG_PCTCC_IPRECHG_MAX)
 			bdi->iprechg = v;
···
 			dev_warn(bdi->dev, "invalid value for battery:precharge-current-microamp: %d\n",
 				 v);
 
-		v = info.charge_term_current_ua / 1000;
+		v = info->charge_term_current_ua / 1000;
 		if (v >= BQ24190_REG_PCTCC_ITERM_MIN
 		 && v <= BQ24190_REG_PCTCC_ITERM_MAX)
 			bdi->iterm = v;

drivers/power/supply/bq2515x_charger.c

···
 static int bq2515x_hw_init(struct bq2515x_device *bq2515x)
 {
 	int ret;
-	struct power_supply_battery_info bat_info = { };
+	struct power_supply_battery_info *bat_info;
 
 	ret = bq2515x_disable_watchdog_timers(bq2515x);
 	if (ret)
···
 
 	} else {
 		bq2515x->init_data.ichg =
-				bat_info.constant_charge_current_max_ua;
+				bat_info->constant_charge_current_max_ua;
 
 		bq2515x->init_data.vbatreg =
-				bat_info.constant_charge_voltage_max_uv;
+				bat_info->constant_charge_voltage_max_uv;
 
 		bq2515x->init_data.iprechg =
-				bat_info.precharge_current_ua;
+				bat_info->precharge_current_ua;
 	}
 
 	ret = bq2515x_set_const_charge_current(bq2515x,

drivers/power/supply/bq256xx_charger.c

···
 
 static int bq256xx_hw_init(struct bq256xx_device *bq)
 {
-	struct power_supply_battery_info bat_info = { };
+	struct power_supply_battery_info *bat_info;
 	int wd_reg_val = BQ256XX_WATCHDOG_DIS;
 	int ret = 0;
 	int i;
···
 	if (ret) {
 		dev_warn(bq->dev, "battery info missing, default values will be applied\n");
 
-		bat_info.constant_charge_current_max_ua =
+		bat_info->constant_charge_current_max_ua =
 				bq->chip_info->bq256xx_def_ichg;
 
-		bat_info.constant_charge_voltage_max_uv =
+		bat_info->constant_charge_voltage_max_uv =
 				bq->chip_info->bq256xx_def_vbatreg;
 
-		bat_info.precharge_current_ua =
+		bat_info->precharge_current_ua =
 				bq->chip_info->bq256xx_def_iprechg;
 
-		bat_info.charge_term_current_ua =
+		bat_info->charge_term_current_ua =
 				bq->chip_info->bq256xx_def_iterm;
 
 		bq->init_data.ichg_max =
···
 				bq->chip_info->bq256xx_max_vbatreg;
 	} else {
 		bq->init_data.ichg_max =
-			bat_info.constant_charge_current_max_ua;
+			bat_info->constant_charge_current_max_ua;
 
 		bq->init_data.vbatreg_max =
-			bat_info.constant_charge_voltage_max_uv;
+			bat_info->constant_charge_voltage_max_uv;
 	}
 
 	ret = bq->chip_info->bq256xx_set_vindpm(bq, bq->init_data.vindpm);
···
 		return ret;
 
 	ret = bq->chip_info->bq256xx_set_ichg(bq,
-				bat_info.constant_charge_current_max_ua);
+				bat_info->constant_charge_current_max_ua);
 	if (ret)
 		return ret;
 
 	ret = bq->chip_info->bq256xx_set_iprechg(bq,
-				bat_info.precharge_current_ua);
+				bat_info->precharge_current_ua);
 	if (ret)
 		return ret;
 
 	ret = bq->chip_info->bq256xx_set_vbatreg(bq,
-				bat_info.constant_charge_voltage_max_uv);
+				bat_info->constant_charge_voltage_max_uv);
 	if (ret)
 		return ret;
 
 	ret = bq->chip_info->bq256xx_set_iterm(bq,
-				bat_info.charge_term_current_ua);
+				bat_info->charge_term_current_ua);
 	if (ret)
 		return ret;
 
-	power_supply_put_battery_info(bq->charger, &bat_info);
+	power_supply_put_battery_info(bq->charger, bat_info);
 
 	return 0;
 }

drivers/power/supply/bq25890_charger.c

···
 	/* lookup tables */
 	TBL_TREG,
 	TBL_BOOSTI,
+	TBL_TSPCT,
 };
 
 /* Thermal Regulation Threshold lookup table, in degrees Celsius */
···
 };
 
 #define BQ25890_BOOSTI_TBL_SIZE		ARRAY_SIZE(bq25890_boosti_tbl)
+
+/* NTC 10K temperature lookup table in tenths of a degree */
+static const u32 bq25890_tspct_tbl[] = {
+	850, 840, 830, 820, 810, 800, 790, 780,
+	770, 760, 750, 740, 730, 720, 710, 700,
+	690, 685, 680, 675, 670, 660, 650, 645,
+	640, 630, 620, 615, 610, 600, 590, 585,
+	580, 570, 565, 560, 550, 540, 535, 530,
+	520, 515, 510, 500, 495, 490, 480, 475,
+	470, 460, 455, 450, 440, 435, 430, 425,
+	420, 410, 405, 400, 390, 385, 380, 370,
+	365, 360, 355, 350, 340, 335, 330, 320,
+	310, 305, 300, 290, 285, 280, 275, 270,
+	260, 250, 245, 240, 230, 225, 220, 210,
+	205, 200, 190, 180, 175, 170, 160, 150,
+	145, 140, 130, 120, 115, 110, 100, 90,
+	80, 70, 60, 50, 40, 30, 20, 10,
+	0, -10, -20, -30, -40, -60, -70, -80,
+	-90, -10, -120, -140, -150, -170, -190, -210,
+};
+
+#define BQ25890_TSPCT_TBL_SIZE		ARRAY_SIZE(bq25890_tspct_tbl)
 
 struct bq25890_range {
 	u32 min;
···
 
 	/* lookup tables */
 	[TBL_TREG] =	{ .lt = {bq25890_treg_tbl, BQ25890_TREG_TBL_SIZE} },
-	[TBL_BOOSTI] =	{ .lt = {bq25890_boosti_tbl, BQ25890_BOOSTI_TBL_SIZE} }
+	[TBL_BOOSTI] =	{ .lt = {bq25890_boosti_tbl, BQ25890_BOOSTI_TBL_SIZE} },
+	[TBL_TSPCT] =	{ .lt = {bq25890_tspct_tbl, BQ25890_TSPCT_TBL_SIZE} }
 };
 
 static int bq25890_field_read(struct bq25890_device *bq,
···
 	switch (psp) {
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
+	case POWER_SUPPLY_PROP_TEMP:
 		return true;
 
 	default:
···
 
 		/* converted_val = ADC_val * 50mA (table 10.3.19) */
 		val->intval = ret * -50000;
+		break;
+
+	case POWER_SUPPLY_PROP_TEMP:
+		ret = bq25890_field_read(bq, F_TSPCT);
+		if (ret < 0)
+			return ret;
+
+		/* convert TS percentage into rough temperature */
+		val->intval = bq25890_find_val(ret, TBL_TSPCT);
 		break;
 
 	default:
···
 	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
 	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_TEMP,
 };
 
 static char *bq25890_charger_supplied_to[] = {

drivers/power/supply/bq25980_charger.c

···
 
 static int bq25980_hw_init(struct bq25980_device *bq)
 {
-	struct power_supply_battery_info bat_info = { };
+	struct power_supply_battery_info *bat_info;
 	int wd_reg_val = BQ25980_WATCHDOG_DIS;
 	int wd_max_val = BQ25980_NUM_WD_VAL - 1;
 	int ret = 0;
···
 		return -EINVAL;
 	}
 
-	bq->init_data.ichg_max = bat_info.constant_charge_current_max_ua;
-	bq->init_data.vreg_max = bat_info.constant_charge_voltage_max_uv;
+	bq->init_data.ichg_max = bat_info->constant_charge_current_max_ua;
+	bq->init_data.vreg_max = bat_info->constant_charge_voltage_max_uv;
 
 	if (bq->state.bypass) {
 		ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,

drivers/power/supply/bq27xxx_battery.c

···
 
 static void bq27xxx_battery_settings(struct bq27xxx_device_info *di)
 {
-	struct power_supply_battery_info info = {};
+	struct power_supply_battery_info *info;
 	unsigned int min, max;
 
 	if (power_supply_get_battery_info(di->bat, &info) < 0)
···
 		return;
 	}
 
-	if (info.energy_full_design_uwh != info.charge_full_design_uah) {
-		if (info.energy_full_design_uwh == -EINVAL)
+	if (info->energy_full_design_uwh != info->charge_full_design_uah) {
+		if (info->energy_full_design_uwh == -EINVAL)
 			dev_warn(di->dev, "missing battery:energy-full-design-microwatt-hours\n");
-		else if (info.charge_full_design_uah == -EINVAL)
+		else if (info->charge_full_design_uah == -EINVAL)
 			dev_warn(di->dev, "missing battery:charge-full-design-microamp-hours\n");
 	}
 
 	/* assume min == 0 */
 	max = di->dm_regs[BQ27XXX_DM_DESIGN_ENERGY].max;
-	if (info.energy_full_design_uwh > max * 1000) {
+	if (info->energy_full_design_uwh > max * 1000) {
 		dev_err(di->dev, "invalid battery:energy-full-design-microwatt-hours %d\n",
-			info.energy_full_design_uwh);
-		info.energy_full_design_uwh = -EINVAL;
+			info->energy_full_design_uwh);
+		info->energy_full_design_uwh = -EINVAL;
 	}
 
 	/* assume min == 0 */
 	max = di->dm_regs[BQ27XXX_DM_DESIGN_CAPACITY].max;
-	if (info.charge_full_design_uah > max * 1000) {
+	if (info->charge_full_design_uah > max * 1000) {
 		dev_err(di->dev, "invalid battery:charge-full-design-microamp-hours %d\n",
-			info.charge_full_design_uah);
-		info.charge_full_design_uah = -EINVAL;
+			info->charge_full_design_uah);
+		info->charge_full_design_uah = -EINVAL;
 	}
 
 	min = di->dm_regs[BQ27XXX_DM_TERMINATE_VOLTAGE].min;
 	max = di->dm_regs[BQ27XXX_DM_TERMINATE_VOLTAGE].max;
-	if ((info.voltage_min_design_uv < min * 1000 ||
-	     info.voltage_min_design_uv > max * 1000) &&
-	     info.voltage_min_design_uv != -EINVAL) {
+	if ((info->voltage_min_design_uv < min * 1000 ||
+	     info->voltage_min_design_uv > max * 1000) &&
+	     info->voltage_min_design_uv != -EINVAL) {
 		dev_err(di->dev, "invalid battery:voltage-min-design-microvolt %d\n",
-			info.voltage_min_design_uv);
-		info.voltage_min_design_uv = -EINVAL;
+			info->voltage_min_design_uv);
+		info->voltage_min_design_uv = -EINVAL;
 	}
 
-	if ((info.energy_full_design_uwh != -EINVAL &&
-	     info.charge_full_design_uah != -EINVAL) ||
-	     info.voltage_min_design_uv  != -EINVAL)
-		bq27xxx_battery_set_config(di, &info);
+	if ((info->energy_full_design_uwh != -EINVAL &&
+	     info->charge_full_design_uah != -EINVAL) ||
+	     info->voltage_min_design_uv  != -EINVAL)
+		bq27xxx_battery_set_config(di, info);
 }
 
 /*

drivers/power/supply/cw2015_battery.c

···
 	struct delayed_work battery_delay_work;
 	struct regmap *regmap;
 	struct power_supply *rk_bat;
-	struct power_supply_battery_info battery;
+	struct power_supply_battery_info *battery;
 	u8 *bat_profile;
 
 	bool charger_attached;
···
 
 	case POWER_SUPPLY_PROP_CHARGE_FULL:
 	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
-		if (cw_bat->battery.charge_full_design_uah > 0)
-			val->intval = cw_bat->battery.charge_full_design_uah;
+		if (cw_bat->battery->charge_full_design_uah > 0)
+			val->intval = cw_bat->battery->charge_full_design_uah;
 		else
 			val->intval = 0;
 		break;
 
 	case POWER_SUPPLY_PROP_CHARGE_NOW:
-		val->intval = cw_bat->battery.charge_full_design_uah;
+		val->intval = cw_bat->battery->charge_full_design_uah;
 		val->intval = val->intval * cw_bat->soc / 100;
 		break;
 
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
 		if (cw_battery_valid_time_to_empty(cw_bat) &&
-		    cw_bat->battery.charge_full_design_uah > 0) {
+		    cw_bat->battery->charge_full_design_uah > 0) {
 			/* calculate remaining capacity */
-			val->intval = cw_bat->battery.charge_full_design_uah;
+			val->intval = cw_bat->battery->charge_full_design_uah;
 			val->intval = val->intval * cw_bat->soc / 100;
 
 			/* estimate current based on time to empty */
···
 
 	ret = power_supply_get_battery_info(cw_bat->rk_bat, &cw_bat->battery);
 	if (ret) {
+		/* Allocate an empty battery */
+		cw_bat->battery = devm_kzalloc(&client->dev,
+					       sizeof(cw_bat->battery),
+					       GFP_KERNEL);
+		if (!cw_bat->battery)
+			return -ENOMEM;
 		dev_warn(cw_bat->dev,
 			 "No monitored battery, some properties will be missing\n");
 	}
···
 	struct cw_battery *cw_bat = i2c_get_clientdata(client);
 
 	cancel_delayed_work_sync(&cw_bat->battery_delay_work);
-	power_supply_put_battery_info(cw_bat->rk_bat, &cw_bat->battery);
+	power_supply_put_battery_info(cw_bat->rk_bat, cw_bat->battery);
 	return 0;
 }
 

drivers/power/supply/ingenic-battery.c

···
 	struct iio_channel *channel;
 	struct power_supply_desc desc;
 	struct power_supply *battery;
-	struct power_supply_battery_info info;
+	struct power_supply_battery_info *info;
 };
 
 static int ingenic_battery_get_property(struct power_supply *psy,
···
 					union power_supply_propval *val)
 {
 	struct ingenic_battery *bat = power_supply_get_drvdata(psy);
-	struct power_supply_battery_info *info = &bat->info;
+	struct power_supply_battery_info *info = bat->info;
 	int ret;
 
 	switch (psp) {
···
 	if (ret != IIO_AVAIL_LIST || scale_type != IIO_VAL_FRACTIONAL_LOG2)
 		return -EINVAL;
 
-	max_mV = bat->info.voltage_max_design_uv / 1000;
+	max_mV = bat->info->voltage_max_design_uv / 1000;
 
 	for (i = 0; i < scale_len; i += 2) {
 		u64 scale_mV = (max_raw * scale_raw[i]) >> scale_raw[i + 1];
···
 		dev_err(dev, "Unable to get battery info: %d\n", ret);
 		return ret;
 	}
-	if (bat->info.voltage_min_design_uv < 0) {
+	if (bat->info->voltage_min_design_uv < 0) {
 		dev_err(dev, "Unable to get voltage min design\n");
-		return bat->info.voltage_min_design_uv;
+		return bat->info->voltage_min_design_uv;
 	}
-	if (bat->info.voltage_max_design_uv < 0) {
+	if (bat->info->voltage_max_design_uv < 0) {
 		dev_err(dev, "Unable to get voltage max design\n");
-		return bat->info.voltage_max_design_uv;
+		return bat->info->voltage_max_design_uv;
 	}
 
 	return ingenic_battery_set_scale(bat);

drivers/power/supply/max77976_charger.c

···
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * max77976_charger.c - Driver for the Maxim MAX77976 battery charger
+ *
+ * Copyright (C) 2021 Luca Ceresoli
+ * Author: Luca Ceresoli <[e-mail]>
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+
+#define MAX77976_DRIVER_NAME	"max77976-charger"
+#define MAX77976_CHIP_ID	0x76
+
+static const char *max77976_manufacturer	= "Maxim Integrated";
+static const char *max77976_model		= "MAX77976";
+
+/* --------------------------------------------------------------------------
+ * Register map
+ */
+
+#define MAX77976_REG_CHIP_ID		0x00
+#define MAX77976_REG_CHIP_REVISION	0x01
+#define MAX77976_REG_CHG_INT_OK		0x12
+#define MAX77976_REG_CHG_DETAILS_01	0x14
+#define MAX77976_REG_CHG_CNFG_00	0x16
+#define MAX77976_REG_CHG_CNFG_02	0x18
+#define MAX77976_REG_CHG_CNFG_06	0x1c
+#define MAX77976_REG_CHG_CNFG_09	0x1f
+
+/* CHG_DETAILS_01.CHG_DTLS values */
+enum max77976_charging_state {
+	MAX77976_CHARGING_PREQUALIFICATION = 0x0,
+	MAX77976_CHARGING_FAST_CONST_CURRENT,
+	MAX77976_CHARGING_FAST_CONST_VOLTAGE,
+	MAX77976_CHARGING_TOP_OFF,
+	MAX77976_CHARGING_DONE,
+	MAX77976_CHARGING_RESERVED_05,
+	MAX77976_CHARGING_TIMER_FAULT,
+	MAX77976_CHARGING_SUSPENDED_QBATT_OFF,
+	MAX77976_CHARGING_OFF,
+	MAX77976_CHARGING_RESERVED_09,
+	MAX77976_CHARGING_THERMAL_SHUTDOWN,
+	MAX77976_CHARGING_WATCHDOG_EXPIRED,
+	MAX77976_CHARGING_SUSPENDED_JEITA,
+	MAX77976_CHARGING_SUSPENDED_THM_REMOVAL,
+	MAX77976_CHARGING_SUSPENDED_PIN,
+	MAX77976_CHARGING_RESERVED_0F,
+};
+
+/* CHG_DETAILS_01.BAT_DTLS values */
+enum max77976_battery_state {
+	MAX77976_BATTERY_BATTERY_REMOVAL = 0x0,
+	MAX77976_BATTERY_PREQUALIFICATION,
+	MAX77976_BATTERY_TIMER_FAULT,
+	MAX77976_BATTERY_REGULAR_VOLTAGE,
+	MAX77976_BATTERY_LOW_VOLTAGE,
+	MAX77976_BATTERY_OVERVOLTAGE,
+	MAX77976_BATTERY_RESERVED,
+	MAX77976_BATTERY_BATTERY_ONLY, // No valid adapter is present
+};
+
+/* CHG_CNFG_00.MODE values */
+enum max77976_mode {
+	MAX77976_MODE_CHARGER_BUCK		= 0x5,
+	MAX77976_MODE_BOOST			= 0x9,
+};
+
+/* CHG_CNFG_02.CHG_CC: charge current limit, 100..5500 mA, 50 mA steps */
+#define MAX77976_CHG_CC_STEP			  50000U
+#define MAX77976_CHG_CC_MIN			 100000U
+#define MAX77976_CHG_CC_MAX			5500000U
+
+/* CHG_CNFG_09.CHGIN_ILIM: input current limit, 100..3200 mA, 100 mA steps */
+#define MAX77976_CHGIN_ILIM_STEP		 100000U
+#define MAX77976_CHGIN_ILIM_MIN			 100000U
+#define MAX77976_CHGIN_ILIM_MAX			3200000U
+
+enum max77976_field_idx {
+	VERSION, REVISION,                      /* CHIP_REVISION */
+	CHGIN_OK,                               /* CHG_INT_OK */
+	BAT_DTLS, CHG_DTLS,                     /* CHG_DETAILS_01 */
+	MODE,                                   /* CHG_CNFG_00 */
+	CHG_CC,                                 /* CHG_CNFG_02 */
+	CHGPROT,                                /* CHG_CNFG_06 */
+	CHGIN_ILIM,                             /* CHG_CNFG_09 */
+	MAX77976_N_REGMAP_FIELDS
+};
+
+static const struct reg_field max77976_reg_field[MAX77976_N_REGMAP_FIELDS] = {
+	[VERSION]        = REG_FIELD(MAX77976_REG_CHIP_REVISION,   4, 7),
+	[REVISION]       = REG_FIELD(MAX77976_REG_CHIP_REVISION,   0, 3),
+	[CHGIN_OK]       = REG_FIELD(MAX77976_REG_CHG_INT_OK,      6, 6),
+	[CHG_DTLS]       = REG_FIELD(MAX77976_REG_CHG_DETAILS_01,  0, 3),
+	[BAT_DTLS]       = REG_FIELD(MAX77976_REG_CHG_DETAILS_01,  4, 6),
+	[MODE]           = REG_FIELD(MAX77976_REG_CHG_CNFG_00,     0, 3),
+	[CHG_CC]         = REG_FIELD(MAX77976_REG_CHG_CNFG_02,     0, 6),
+	[CHGPROT]        = REG_FIELD(MAX77976_REG_CHG_CNFG_06,     2, 3),
+	[CHGIN_ILIM]     = REG_FIELD(MAX77976_REG_CHG_CNFG_09,     0, 5),
+};
+
+static const struct regmap_config max77976_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = 0x24,
+};
+
+/* --------------------------------------------------------------------------
+ * Data structures
+ */
+
+struct max77976 {
+	struct i2c_client	*client;
+	struct regmap		*regmap;
+	struct regmap_field	*rfield[MAX77976_N_REGMAP_FIELDS];
+};
+
+/* --------------------------------------------------------------------------
+ * power_supply properties
+ */
+
+static int max77976_get_status(struct max77976 *chg, int *val)
+{
+	unsigned int regval;
+	int err;
+
+	err = regmap_field_read(chg->rfield[CHG_DTLS], &regval);
+	if (err < 0)
+		return err;
+
+	switch (regval) {
+	case MAX77976_CHARGING_PREQUALIFICATION:
+	case MAX77976_CHARGING_FAST_CONST_CURRENT:
+	case MAX77976_CHARGING_FAST_CONST_VOLTAGE:
+	case MAX77976_CHARGING_TOP_OFF:
+		*val = POWER_SUPPLY_STATUS_CHARGING;
+		break;
+	case MAX77976_CHARGING_DONE:
+		*val = POWER_SUPPLY_STATUS_FULL;
+		break;
+	case MAX77976_CHARGING_TIMER_FAULT:
+	case MAX77976_CHARGING_SUSPENDED_QBATT_OFF:
+	case MAX77976_CHARGING_SUSPENDED_JEITA:
+	case MAX77976_CHARGING_SUSPENDED_THM_REMOVAL:
+	case MAX77976_CHARGING_SUSPENDED_PIN:
+		*val = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		break;
+	case MAX77976_CHARGING_OFF:
+	case MAX77976_CHARGING_THERMAL_SHUTDOWN:
+	case MAX77976_CHARGING_WATCHDOG_EXPIRED:
+		*val = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+	default:
+		*val = POWER_SUPPLY_STATUS_UNKNOWN;
+	}
+
+	return 0;
+}
+
+static int max77976_get_charge_type(struct max77976 *chg, int *val)
+{
+	unsigned int regval;
+	int err;
+
+	err = regmap_field_read(chg->rfield[CHG_DTLS], &regval);
+	if (err < 0)
+		return err;
+
+	switch (regval) {
+	case MAX77976_CHARGING_PREQUALIFICATION:
+		*val = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+		break;
+	case MAX77976_CHARGING_FAST_CONST_CURRENT:
+	case MAX77976_CHARGING_FAST_CONST_VOLTAGE:
+		*val = POWER_SUPPLY_CHARGE_TYPE_FAST;
+		break;
+	case MAX77976_CHARGING_TOP_OFF:
+		*val = POWER_SUPPLY_CHARGE_TYPE_STANDARD;
+		break;
+	case MAX77976_CHARGING_DONE:
+	case MAX77976_CHARGING_TIMER_FAULT:
+	case MAX77976_CHARGING_SUSPENDED_QBATT_OFF:
+	case MAX77976_CHARGING_OFF:
+	case MAX77976_CHARGING_THERMAL_SHUTDOWN:
+	case MAX77976_CHARGING_WATCHDOG_EXPIRED:
+	case MAX77976_CHARGING_SUSPENDED_JEITA:
+	case MAX77976_CHARGING_SUSPENDED_THM_REMOVAL:
+	case MAX77976_CHARGING_SUSPENDED_PIN:
+		*val = POWER_SUPPLY_CHARGE_TYPE_NONE;
+		break;
+	default:
+		*val = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+	}
+
+	return 0;
+}
+
+static int max77976_get_health(struct max77976 *chg, int *val)
+{
+	unsigned int regval;
+	int err;
+
+	err = regmap_field_read(chg->rfield[BAT_DTLS], &regval);
+	if (err < 0)
+		return err;
+
+	switch (regval) {
+	case MAX77976_BATTERY_BATTERY_REMOVAL:
+		*val = POWER_SUPPLY_HEALTH_NO_BATTERY;
+		break;
+	case MAX77976_BATTERY_LOW_VOLTAGE:
+	case MAX77976_BATTERY_REGULAR_VOLTAGE:
+		*val = POWER_SUPPLY_HEALTH_GOOD;
+		break;
+	case MAX77976_BATTERY_TIMER_FAULT:
+		*val = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
+		break;
+	case MAX77976_BATTERY_OVERVOLTAGE:
+		*val = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+		break;
+	case MAX77976_BATTERY_PREQUALIFICATION:
+	case MAX77976_BATTERY_BATTERY_ONLY:
+		*val = POWER_SUPPLY_HEALTH_UNKNOWN;
+		break;
+	default:
+		*val = POWER_SUPPLY_HEALTH_UNKNOWN;
+	}
+
+	return 0;
+}
+
+static int max77976_get_online(struct max77976 *chg, int *val)
+{
+	unsigned int regval;
+	int err;
+
+	err = regmap_field_read(chg->rfield[CHGIN_OK], &regval);
+	if (err < 0)
+		return err;
+
+	*val = (regval ? 1 : 0);
+
+	return 0;
+}
+
+static int max77976_get_integer(struct max77976 *chg, enum max77976_field_idx fidx,
+				unsigned int clamp_min, unsigned int clamp_max,
+				unsigned int mult, int *val)
+{
+	unsigned int regval;
+	int err;
+
+	err = regmap_field_read(chg->rfield[fidx], &regval);
+	if (err < 0)
+		return err;
+
+	*val = clamp_val(regval * mult, clamp_min, clamp_max);
+
+	return 0;
+}
+
+static int max77976_set_integer(struct max77976 *chg, enum max77976_field_idx fidx,
+				unsigned int clamp_min, unsigned int clamp_max,
+				unsigned int div, int val)
+{
+	unsigned int regval;
+
+	regval = clamp_val(val, clamp_min, clamp_max) / div;
+
+	return regmap_field_write(chg->rfield[fidx], regval);
+}
+
+static int max77976_get_property(struct power_supply *psy,
+				 enum power_supply_property psp,
+				 union power_supply_propval *val)
+{
+	struct max77976 *chg = power_supply_get_drvdata(psy);
+	int err = 0;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		err = max77976_get_status(chg, &val->intval);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		err = max77976_get_charge_type(chg, &val->intval);
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		err = max77976_get_health(chg, &val->intval);
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		err = max77976_get_online(chg, &val->intval);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
+		val->intval = MAX77976_CHG_CC_MAX;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+		err = max77976_get_integer(chg, CHG_CC,
+					   MAX77976_CHG_CC_MIN,
+					   MAX77976_CHG_CC_MAX,
+					   MAX77976_CHG_CC_STEP,
+					   &val->intval);
+		break;
+	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+		err = max77976_get_integer(chg, CHGIN_ILIM,
+					   MAX77976_CHGIN_ILIM_MIN,
+					   MAX77976_CHGIN_ILIM_MAX,
+					   MAX77976_CHGIN_ILIM_STEP,
+					   &val->intval);
+		break;
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		val->strval = max77976_model;
+		break;
+	case POWER_SUPPLY_PROP_MANUFACTURER:
+		val->strval = max77976_manufacturer;
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static int max77976_set_property(struct power_supply *psy,
+				 enum power_supply_property psp,
+				 const union power_supply_propval *val)
+{
+	struct max77976 *chg = power_supply_get_drvdata(psy);
+	int err = 0;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+		err = max77976_set_integer(chg, CHG_CC,
+					   MAX77976_CHG_CC_MIN,
+					   MAX77976_CHG_CC_MAX,
+					   MAX77976_CHG_CC_STEP,
+					   val->intval);
+		break;
+	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+		err = max77976_set_integer(chg, CHGIN_ILIM,
+					   MAX77976_CHGIN_ILIM_MIN,
+					   MAX77976_CHGIN_ILIM_MAX,
+					   MAX77976_CHGIN_ILIM_STEP,
+					   val->intval);
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	return err;
+};
+
+static int max77976_property_is_writeable(struct power_supply *psy,
+					  enum power_supply_property psp)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static enum power_supply_property max77976_psy_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_CHARGE_TYPE,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
+	POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
+	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
+	POWER_SUPPLY_PROP_MODEL_NAME,
+	POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static const struct power_supply_desc max77976_psy_desc = {
+	.name			= MAX77976_DRIVER_NAME,
+	.type			= POWER_SUPPLY_TYPE_USB,
+	.properties		= max77976_psy_props,
+	.num_properties		= ARRAY_SIZE(max77976_psy_props),
+	.get_property		= max77976_get_property,
+	.set_property		= max77976_set_property,
+	.property_is_writeable	= max77976_property_is_writeable,
+};
+
+/* --------------------------------------------------------------------------
+ * Entry point
+ */
+
+static int max77976_detect(struct max77976 *chg)
+{
+	struct device *dev = &chg->client->dev;
+	unsigned int id, ver, rev;
+	int err;
+
+	err = regmap_read(chg->regmap, MAX77976_REG_CHIP_ID, &id);
+	if (err)
+		return dev_err_probe(dev, err, "cannot read chip ID\n");
+
+	if (id != MAX77976_CHIP_ID)
+		return dev_err_probe(dev, -ENXIO, "unknown model ID 0x%02x\n", id);
+
+	err = regmap_field_read(chg->rfield[VERSION], &ver);
+	if (!err)
+		err = regmap_field_read(chg->rfield[REVISION], &rev);
+	if (err)
+		return dev_err_probe(dev, -ENXIO, "cannot read version/revision\n");
+
+	dev_info(dev, "detected model MAX779%02x ver %u rev %u", id, ver, rev);
+
+	return 0;
+}
+
+static int max77976_configure(struct max77976 *chg)
+{
+	struct device *dev = &chg->client->dev;
+	int err;
+
+	/* Magic value to unlock writing to some registers */
+	err = regmap_field_write(chg->rfield[CHGPROT], 0x3);
+	if (err)
+		goto err;
+
+	/*
+	 * Mode 5 = Charger ON, OTG OFF, buck ON, boost OFF.
+	 * Other modes are not implemented by this driver.
+	 */
+	err = regmap_field_write(chg->rfield[MODE], MAX77976_MODE_CHARGER_BUCK);
+	if (err)
+		goto err;
+
+	return 0;
+
+err:
+	return dev_err_probe(dev, err, "error while configuring");
+}
+
+static int max77976_probe(struct i2c_client *client)
+{
+	struct device *dev = &client->dev;
+	struct power_supply_config psy_cfg = {};
+	struct power_supply *psy;
+	struct max77976 *chg;
+	int err;
+	int i;
+
+	chg = devm_kzalloc(dev, sizeof(*chg), GFP_KERNEL);
+	if (!chg)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, chg);
+	psy_cfg.drv_data = chg;
+	chg->client = client;
+
+	chg->regmap = devm_regmap_init_i2c(client, &max77976_regmap_config);
+	if (IS_ERR(chg->regmap))
+		return dev_err_probe(dev, PTR_ERR(chg->regmap),
+				     "cannot allocate regmap\n");
+
+	for (i = 0; i < MAX77976_N_REGMAP_FIELDS; i++) {
+		chg->rfield[i] = devm_regmap_field_alloc(dev, chg->regmap,
+							 max77976_reg_field[i]);
+		if (IS_ERR(chg->rfield[i]))
+			return dev_err_probe(dev, PTR_ERR(chg->rfield[i]),
+					     "cannot allocate regmap field\n");
+	}
+
+	err = max77976_detect(chg);
+	if (err)
+		return err;
+
+	err = max77976_configure(chg);
+	if (err)
+		return err;
+
+	psy = devm_power_supply_register_no_ws(dev, &max77976_psy_desc, &psy_cfg);
+	if (IS_ERR(psy))
+		return dev_err_probe(dev, PTR_ERR(psy), "cannot register\n");
+
+	return 0;
+}
+
+static const struct i2c_device_id max77976_i2c_id[] = {
+	{ MAX77976_DRIVER_NAME, 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, max77976_i2c_id);
+
+static const struct of_device_id max77976_of_id[] = {
+	{ .compatible = "maxim,max77976" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, max77976_of_id);
+
+static struct i2c_driver max77976_driver = {
+	.driver = {
+		.name		= MAX77976_DRIVER_NAME,
+		.of_match_table	= max77976_of_id,
+	},
+	.probe_new	= max77976_probe,
+	.id_table	= max77976_i2c_id,
+};
+module_i2c_driver(max77976_driver);
+
+MODULE_AUTHOR("Luca Ceresoli <[e-mail]>");
+MODULE_DESCRIPTION("Maxim MAX77976 charger driver");
+MODULE_LICENSE("GPL v2");

drivers/power/supply/power_supply_core.c

···
 #include <linux/power_supply.h>
 #include <linux/property.h>
 #include <linux/thermal.h>
+#include <linux/fixp-arith.h>
 #include "power_supply.h"
 
 /* exported for the APM Power driver, APM emulation */
···
 #endif /* CONFIG_OF */
 
 int power_supply_get_battery_info(struct power_supply *psy,
-				  struct power_supply_battery_info *info)
+				  struct power_supply_battery_info **info_out)
 {
 	struct power_supply_resistance_temp_table *resist_table;
+	struct power_supply_battery_info *info;
 	struct device_node *battery_np;
 	const char *value;
 	int err, len, index;
 	const __be32 *list;
+
+	info = devm_kmalloc(&psy->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
 
 	info->technology                     = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
 	info->energy_full_design_uwh         = -EINVAL;
···
 	info->charge_term_current_ua         = -EINVAL;
 	info->constant_charge_current_max_ua = -EINVAL;
 	info->constant_charge_voltage_max_uv = -EINVAL;
+	info->tricklecharge_current_ua       = -EINVAL;
+	info->precharge_voltage_max_uv       = -EINVAL;
+	info->charge_restart_voltage_uv      = -EINVAL;
+	info->overvoltage_limit_uv           = -EINVAL;
 	info->temp_ambient_alert_min         = INT_MIN;
 	info->temp_ambient_alert_max         = INT_MAX;
 	info->temp_alert_min                 = INT_MIN;
···
 
 	list = of_get_property(battery_np, "resistance-temp-table", &len);
 	if (!list || !len)
-		goto out_put_node;
+		goto out_ret_pointer;
 
 	info->resist_table_size = len / (2 * sizeof(__be32));
 	resist_table = info->resist_table = devm_kcalloc(&psy->dev,
···
 		resist_table[index].temp = be32_to_cpu(*list++);
 		resist_table[index].resistance = be32_to_cpu(*list++);
 	}
+
+out_ret_pointer:
+	/* Finally return the whole thing */
+	*info_out = info;
 
 out_put_node:
 	of_node_put(battery_np);
···
 
 	if (info->resist_table)
 		devm_kfree(&psy->dev, info->resist_table);
+
+	devm_kfree(&psy->dev, info);
 }
 EXPORT_SYMBOL_GPL(power_supply_put_battery_info);
 
···
 int power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
 				    int table_len, int temp)
 {
-	int i, resist;
+	int i, high, low;
 
-	for (i = 0; i < table_len; i++)
+	/* Break loop at table_len - 1 because that is the highest index */
+	for (i = 0; i < table_len - 1; i++)
 		if (temp > table[i].temp)
 			break;
 
-	if (i > 0 && i < table_len) {
-		int tmp;
+	/* The library function will deal with high == low */
+	if ((i == 0) || (i == (table_len - 1)))
+		high = i;
+	else
+		high = i - 1;
+	low = i;
 
-		tmp = (table[i - 1].resistance - table[i].resistance) *
-			(temp - table[i].temp);
-		tmp /= table[i - 1].temp - table[i].temp;
-		resist = tmp + table[i].resistance;
-	} else if (i == 0) {
-		resist = table[0].resistance;
-	} else {
-		resist = table[table_len - 1].resistance;
-	}
-
-	return resist;
+	return fixp_linear_interpolate(table[low].temp,
+				       table[low].resistance,
+				       table[high].temp,
+				       table[high].resistance,
+				       temp);
 }
 EXPORT_SYMBOL_GPL(power_supply_temp2resist_simple);
 
···
 int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
 				int table_len, int ocv)
 {
-	int i, cap, tmp;
+	int i, high, low;
 
-	for (i = 0; i < table_len; i++)
+	/* Break loop at table_len - 1 because that is the highest index */
+	for (i = 0; i < table_len - 1; i++)
 		if (ocv > table[i].ocv)
 			break;
 
-	if (i > 0 && i < table_len) {
-		tmp = (table[i - 1].capacity - table[i].capacity) *
-			(ocv - table[i].ocv);
-		tmp /= table[i - 1].ocv - table[i].ocv;
-		cap = tmp + table[i].capacity;
-	} else if (i == 0) {
-		cap = table[0].capacity;
-	} else {
-		cap = table[table_len - 1].capacity;
-	}
+	/* The library function will deal with high == low */
+	if ((i == 0) || (i == (table_len - 1)))
+		high = i - 1;
+	else
+		high = i; /* i.e. i == 0 */
+	low = i;
 
-	return cap;
+	return fixp_linear_interpolate(table[low].ocv,
+				       table[low].capacity,
+				       table[high].ocv,
+				       table[high].capacity,
+				       ocv);
 }
 EXPORT_SYMBOL_GPL(power_supply_ocv2cap_simple);
 

drivers/power/supply/power_supply_sysfs.c

···
 	[POWER_SUPPLY_HEALTH_WARM]		    = "Warm",
 	[POWER_SUPPLY_HEALTH_COOL]		    = "Cool",
 	[POWER_SUPPLY_HEALTH_HOT]		    = "Hot",
+	[POWER_SUPPLY_HEALTH_NO_BATTERY]	    = "No battery",
 };
 
 static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[] = {

drivers/power/supply/qcom_smbb.c

···
 	}
 
 	chg->revision += 1;
-	if (chg->revision != 2 && chg->revision != 3) {
-		dev_err(&pdev->dev, "v1 hardware not supported\n");
+	if (chg->revision != 1 && chg->revision != 2 && chg->revision != 3) {
+		dev_err(&pdev->dev, "v%d hardware not supported\n", chg->revision);
 		return -ENODEV;
 	}
 	dev_info(&pdev->dev, "Initializing SMBB rev %u", chg->revision);
···
 }
 
 static const struct of_device_id smbb_charger_id_table[] = {
+	{ .compatible = "qcom,pm8226-charger" },
 	{ .compatible = "qcom,pm8941-charger" },
 	{ }
 };

drivers/power/supply/sc2731_charger.c

···
 
 static int sc2731_charger_hw_init(struct sc2731_charger_info *info)
 {
-	struct power_supply_battery_info bat_info = { };
+	struct power_supply_battery_info *bat_info;
 	u32 term_currrent, term_voltage, cur_val, vol_val;
 	int ret;
 
···
 		cur_val = 0x2;
 		vol_val = 0x1;
 	} else {
-		term_currrent = bat_info.charge_term_current_ua / 1000;
+		term_currrent = bat_info->charge_term_current_ua / 1000;
 
 		if (term_currrent <= 90)
 			cur_val = 0;
···
 		else
 			cur_val = ((term_currrent - 90) / 25) + 1;
 
-		term_voltage = bat_info.constant_charge_voltage_max_uv / 1000;
+		term_voltage = bat_info->constant_charge_voltage_max_uv / 1000;
 
 		if (term_voltage > 4500)
 			term_voltage = 4500;
···
 		else
 			vol_val = 0;
 
-		power_supply_put_battery_info(info->psy_usb, &bat_info);
+		power_supply_put_battery_info(info->psy_usb, bat_info);
 	}
 
 	/* Set charge termination current */

drivers/power/supply/sc27xx_fuel_gauge.c

···
 
 static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data)
 {
-	struct power_supply_battery_info info = { };
+	struct power_supply_battery_info *info;
 	struct power_supply_battery_ocv_table *table;
 	int ret, delta_clbcnt, alarm_adc;
 
···
 		return ret;
 	}
 
-	data->total_cap = info.charge_full_design_uah / 1000;
-	data->max_volt = info.constant_charge_voltage_max_uv / 1000;
-	data->internal_resist = info.factory_internal_resistance_uohm / 1000;
-	data->min_volt = info.voltage_min_design_uv;
+	data->total_cap = info->charge_full_design_uah / 1000;
+	data->max_volt = info->constant_charge_voltage_max_uv / 1000;
+	data->internal_resist = info->factory_internal_resistance_uohm / 1000;
+	data->min_volt = info->voltage_min_design_uv;
 
 	/*
 	 * For SC27XX fuel gauge device, we only use one ocv-capacity
 	 * table in normal temperature 20 Celsius.
 	 */
-	table = power_supply_find_ocv2cap_table(&info, 20, &data->table_len);
+	table = power_supply_find_ocv2cap_table(info, 20, &data->table_len);
 	if (!table)
 		return -EINVAL;
 
···
 				       data->table_len * sizeof(*table),
 				       GFP_KERNEL);
 	if (!data->cap_table) {
-		power_supply_put_battery_info(data->battery, &info);
+		power_supply_put_battery_info(data->battery, info);
 		return -ENOMEM;
 	}
 
···
 	if (!data->alarm_cap)
 		data->alarm_cap += 1;
 
-	data->resist_table_len = info.resist_table_size;
+	data->resist_table_len = info->resist_table_size;
 	if (data->resist_table_len > 0) {
-		data->resist_table = devm_kmemdup(data->dev, info.resist_table,
+		data->resist_table = devm_kmemdup(data->dev, info->resist_table,
 						  data->resist_table_len *
 						  sizeof(struct power_supply_resistance_temp_table),
 						  GFP_KERNEL);
 		if (!data->resist_table) {
-			power_supply_put_battery_info(data->battery, &info);
+			power_supply_put_battery_info(data->battery, info);
 			return -ENOMEM;
 		}
 	}
 
-	power_supply_put_battery_info(data->battery, &info);
+	power_supply_put_battery_info(data->battery, info);
 
 	ret = sc27xx_fgu_calibration(data);
 	if (ret)

drivers/power/supply/smb347-charger.c

···
 
 static int smb347_get_battery_info(struct smb347_charger *smb)
 {
-	struct power_supply_battery_info info = {};
+	struct power_supply_battery_info *info;
 	struct power_supply *supply;
 	int err;
 
···
 	if (err)
 		return err;
 
-	if (info.constant_charge_current_max_ua != -EINVAL)
-		smb->max_charge_current = info.constant_charge_current_max_ua;
+	if (info->constant_charge_current_max_ua != -EINVAL)
+		smb->max_charge_current = info->constant_charge_current_max_ua;
 
-	if (info.constant_charge_voltage_max_uv != -EINVAL)
-		smb->max_charge_voltage = info.constant_charge_voltage_max_uv;
+	if (info->constant_charge_voltage_max_uv != -EINVAL)
+		smb->max_charge_voltage = info->constant_charge_voltage_max_uv;
 
-	if (info.precharge_current_ua != -EINVAL)
-		smb->pre_charge_current = info.precharge_current_ua;
+	if (info->precharge_current_ua != -EINVAL)
+		smb->pre_charge_current = info->precharge_current_ua;
 
-	if (info.charge_term_current_ua != -EINVAL)
-		smb->termination_current = info.charge_term_current_ua;
+	if (info->charge_term_current_ua != -EINVAL)
+		smb->termination_current = info->charge_term_current_ua;
 
-	if (info.temp_alert_min != INT_MIN)
-		smb->soft_cold_temp_limit = info.temp_alert_min;
+	if (info->temp_alert_min != INT_MIN)
+		smb->soft_cold_temp_limit = info->temp_alert_min;
 
-	if (info.temp_alert_max != INT_MAX)
-		smb->soft_hot_temp_limit = info.temp_alert_max;
+	if (info->temp_alert_max != INT_MAX)
+		smb->soft_hot_temp_limit = info->temp_alert_max;
 
-	if (info.temp_min != INT_MIN)
-		smb->hard_cold_temp_limit = info.temp_min;
+	if (info->temp_min != INT_MIN)
+		smb->hard_cold_temp_limit = info->temp_min;
 
-	if (info.temp_max != INT_MAX)
-		smb->hard_hot_temp_limit = info.temp_max;
+	if (info->temp_max != INT_MAX)
+		smb->hard_hot_temp_limit = info->temp_max;
 
 	/* Suspend when battery temperature is outside hard limits */
 	if (smb->hard_cold_temp_limit != SMB3XX_TEMP_USE_DEFAULT ||

include/linux/power_supply.h

···
 	POWER_SUPPLY_HEALTH_WARM,
 	POWER_SUPPLY_HEALTH_COOL,
 	POWER_SUPPLY_HEALTH_HOT,
+	POWER_SUPPLY_HEALTH_NO_BATTERY,
 };
 
 enum {
···
 
 #define POWER_SUPPLY_OCV_TEMP_MAX 20
 
-/*
+/**
+ * struct power_supply_battery_info - information about batteries
+ * @technology: from the POWER_SUPPLY_TECHNOLOGY_* enum
+ * @energy_full_design_uwh: energy content when fully charged in microwatt
+ *   hours
+ * @charge_full_design_uah: charge content when fully charged in microampere
+ *   hours
+ * @voltage_min_design_uv: minimum voltage across the poles when the battery
+ *   is at minimum voltage level in microvolts. If the voltage drops below this
+ *   level the battery will need precharging when using CC/CV charging.
+ * @voltage_max_design_uv: voltage across the poles when the battery is fully
+ *   charged in microvolts. This is the "nominal voltage" i.e. the voltage
+ *   printed on the label of the battery.
+ * @tricklecharge_current_ua: the tricklecharge current used when trickle
+ *   charging the battery in microamperes. This is the charging phase when the
+ *   battery is completely empty and we need to carefully trickle in some
+ *   charge until we reach the precharging voltage.
+ * @precharge_current_ua: current to use in the precharge phase in microamperes,
+ *   the precharge rate is limited by limiting the current to this value.
+ * @precharge_voltage_max_uv: the maximum voltage allowed when precharging in
+ *   microvolts. When we pass this voltage we will nominally switch over to the
+ *   CC (constant current) charging phase defined by constant_charge_current_ua
+ *   and constant_charge_voltage_max_uv.
+ * @charge_term_current_ua: when the current in the CV (constant voltage)
+ *   charging phase drops below this value in microamperes the charging will
+ *   terminate completely and not restart until the voltage over the battery
+ *   poles reach charge_restart_voltage_uv unless we use maintenance charging.
+ * @charge_restart_voltage_uv: when the battery has been fully charged by
+ *   CC/CV charging and charging has been disabled, and the voltage subsequently
+ *   drops below this value in microvolts, the charging will be restarted
+ *   (typically using CV charging).
+ * @overvoltage_limit_uv: If the voltage exceeds the nominal voltage
+ *   voltage_max_design_uv and we reach this voltage level, all charging must
+ *   stop and emergency procedures take place, such as shutting down the system
+ *   in some cases.
+ * @constant_charge_current_max_ua: current in microamperes to use in the CC
+ *   (constant current) charging phase. The charging rate is limited
+ *   by this current. This is the main charging phase and as the current is
+ *   constant into the battery the voltage slowly ascends to
+ *   constant_charge_voltage_max_uv.
+ * @constant_charge_voltage_max_uv: voltage in microvolts signifying the end of
+ *   the CC (constant current) charging phase and the beginning of the CV
+ *   (constant voltage) charging phase.
+ * @factory_internal_resistance_uohm: the internal resistance of the battery
+ *   at fabrication time, expressed in microohms. This resistance will vary
+ *   depending on the lifetime and charge of the battery, so this is just a
+ *   nominal ballpark figure.
+ * @ocv_temp: array indicating the open circuit voltage (OCV) capacity
+ *   temperature indices. This is an array of temperatures in degrees Celsius
+ *   indicating which capacity table to use for a certain temperature, since
+ *   the capacity for reasons of chemistry will be different at different
+ *   temperatures. Determining capacity is a multivariate problem and the
+ *   temperature is the first variable we determine.
+ * @temp_ambient_alert_min: the battery will go outside of operating conditions
+ *   when the ambient temperature goes below this temperature in degrees
+ *   Celsius.
+ * @temp_ambient_alert_max: the battery will go outside of operating conditions
+ *   when the ambient temperature goes above this temperature in degrees
+ *   Celsius.
+ * @temp_alert_min: the battery should issue an alert if the internal
+ *   temperature goes below this temperature in degrees Celsius.
+ * @temp_alert_max: the battery should issue an alert if the internal
+ *   temperature goes above this temperature in degrees Celsius.
+ * @temp_min: the battery will go outside of operating conditions when
+ *   the internal temperature goes below this temperature in degrees Celsius.
+ *   Normally this means the system should shut down.
+ * @temp_max: the battery will go outside of operating conditions when
+ *   the internal temperature goes above this temperature in degrees Celsius.
+ *   Normally this means the system should shut down.
+ * @ocv_table: for each entry in ocv_temp there is a corresponding entry in
+ *   ocv_table and a size for each entry in ocv_table_size. These arrays
+ *   determine the capacity in percent in relation to the voltage in microvolts
+ *   at the indexed temperature.
+ * @ocv_table_size: for each entry in ocv_temp this array is giving the size of
+ *   each entry in the array of capacity arrays in ocv_table.
+ * @resist_table: this is a table that correlates a battery temperature to the
+ *   expected internal resistance at this temperature. The resistance is given
+ *   as a percentage of factory_internal_resistance_uohm. Knowing the
+ *   resistance of the battery is usually necessary for calculating the open
+ *   circuit voltage (OCV) that is then used with the ocv_table to calculate
+ *   the capacity of the battery. The resist_table must be ordered descending
+ *   by temperature: highest temperature with lowest resistance first, lowest
+ *   temperature with highest resistance last.
+ * @resist_table_size: the number of items in the resist_table.
+ *
  * This is the recommended struct to manage static battery parameters,
  * populated by power_supply_get_battery_info(). Most platform drivers should
  * use these for consistency.
+ *
  * Its field names must correspond to elements in enum power_supply_property.
  * The default field value is -EINVAL.
- * Power supply class itself doesn't use this.
+ *
+ * The charging parameters here assume a CC/CV charging scheme. This method
+ * is most common with Lithium Ion batteries (other methods are possible) and
+ * looks as follows:
+ *
+ * ^ Battery voltage
+ * |                                               --- overvoltage_limit_uv
+ * |
+ * |                    ...................................................
+ * |                 .. constant_charge_voltage_max_uv
+ * |              ..
+ * |             .
+ * |            .
+ * |           .
+ * |          .
+ * |         .
+ * |     .. precharge_voltage_max_uv
+ * |  ..
+ * |. (trickle charging)
+ * +------------------------------------------------------------------> time
+ *
+ * ^ Current into the battery
+ * |
+ * |      ............. constant_charge_current_max_ua
+ * |      .            .
+ * |      .             .
+ * |      .              .
+ * |      .               .
+ * |      .                ..
+ * |      .                  ....
+ * |      .                       .....
+ * |    ... precharge_current_ua       .......  charge_term_current_ua
+ * |    .                                    .
+ * |    .                                    .
+ * |.... tricklecharge_current_ua            .
+ * |                                         .
+ * +-----------------------------------------------------------------> time
+ *
+ * These diagrams are synchronized on time and the voltage and current
+ * follow each other.
+ *
+ * With CC/CV charging commence over time like this for an empty battery:
+ *
+ * 1. When the battery is completely empty it may need to be charged with
+ *    an especially small current so that electrons just "trickle in",
+ *    this is the tricklecharge_current_ua.
+ *
+ * 2. Next a small initial pre-charge current (precharge_current_ua)
+ *    is applied if the voltage is below precharge_voltage_max_uv until we
+ *    reach precharge_voltage_max_uv. CAUTION: in some texts this is referred
+ *    to as "trickle charging" but the use in the Linux kernel is different
+ *    see below!
+ *
+ * 3. Then the main charging current is applied, which is called the constant
+ *    current (CC) phase. A current regulator is set up to allow
+ *    constant_charge_current_max_ua of current to flow into the battery.
+ *    The chemical reaction in the battery will make the voltage go up as
+ *    charge goes into the battery. This current is applied until we reach
+ *    the constant_charge_voltage_max_uv voltage.
+ *
+ * 4. At this voltage we switch over to the constant voltage (CV) phase. This
+ *    means we allow current to go into the battery, but we keep the voltage
+ *    fixed. This current will continue to charge the battery while keeping
+ *    the voltage the same. A chemical reaction in the battery goes on
+ *    storing energy without affecting the voltage. Over time the current
+ *    will slowly drop and when we reach charge_term_current_ua we will
+ *    end the constant voltage phase.
+ *
+ * After this the battery is fully charged, and if we do not support maintenance
+ * charging, the charging will not restart until power dissipation makes the
+ * voltage fall so that we reach charge_restart_voltage_uv and at this point
+ * we restart charging at the appropriate phase, usually this will be inside
+ * the CV phase.
+ *
+ * If we support maintenance charging the voltage is however kept high after
+ * the CV phase with a very low current. This is meant to let the same charge
+ * go in for usage while the charger is still connected, mainly for
+ * dissipation for the power consuming entity while connected to the
+ * charger.
+ *
+ * All charging MUST terminate if the overvoltage_limit_uv is ever reached.
+ * Overcharging Lithium Ion cells can be DANGEROUS and lead to fire or
+ * explosions.
+ *
+ * The power supply class itself doesn't use this struct as of now.
  */
 
 struct power_supply_battery_info {
-	unsigned int technology;	    /* from the enum above */
-	int energy_full_design_uwh;	    /* microWatt-hours */
-	int charge_full_design_uah;	    /* microAmp-hours */
-	int voltage_min_design_uv;	    /* microVolts */
-	int voltage_max_design_uv;	    /* microVolts */
-	int tricklecharge_current_ua;	    /* microAmps */
-	int precharge_current_ua;	    /* microAmps */
-	int precharge_voltage_max_uv;	    /* microVolts */
-	int charge_term_current_ua;	    /* microAmps */
-	int charge_restart_voltage_uv;	    /* microVolts */
-	int overvoltage_limit_uv;	    /* microVolts */
-	int constant_charge_current_max_ua; /* microAmps */
-	int constant_charge_voltage_max_uv; /* microVolts */
-	int factory_internal_resistance_uohm;   /* microOhms */
-	int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
-	int temp_ambient_alert_min;             /* celsius */
-	int temp_ambient_alert_max;             /* celsius */
-	int temp_alert_min;                     /* celsius */
-	int temp_alert_max;                     /* celsius */
-	int temp_min;                           /* celsius */
-	int temp_max;                           /* celsius */
+	unsigned int technology;
+	int energy_full_design_uwh;
+	int charge_full_design_uah;
+	int voltage_min_design_uv;
+	int voltage_max_design_uv;
+	int tricklecharge_current_ua;
+	int precharge_current_ua;
+	int precharge_voltage_max_uv;
+	int charge_term_current_ua;
+	int charge_restart_voltage_uv;
+	int overvoltage_limit_uv;
+	int constant_charge_current_max_ua;
+	int constant_charge_voltage_max_uv;
+	int factory_internal_resistance_uohm;
+	int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];
+	int temp_ambient_alert_min;
+	int temp_ambient_alert_max;
+	int temp_alert_min;
+	int temp_alert_max;
+	int temp_min;
+	int temp_max;
 	struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
 	int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
 	struct power_supply_resistance_temp_table *resist_table;
···
 #endif /* CONFIG_OF */
 
 extern int power_supply_get_battery_info(struct power_supply *psy,
-					 struct power_supply_battery_info *info);
+					 struct power_supply_battery_info **info_out);
 extern void power_supply_put_battery_info(struct power_supply *psy,
 					  struct power_supply_battery_info *info);
 extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,