power: supply: ab8500: Standardize CC current

The current used in the constant current phase of the charging
exist in struct power_supply_battery_info as
constant_charge_current_max_ua.

Switch the custom property max_out_curr to this and
consequentally change everything that relates to this value
over to using microamperes rather than milliamperes so
we align internal representation of current with the
power core. Prefix every variable we change with *_ua
to indicate the unit everywhere but also to make sure
we do not miss any outlier.

Drop some duplicate unused defines in a header.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/ab8500-bm.h

@@ -160,13 +160,6 @@
 #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
@@ -359,22 +352,21 @@ struct ab8500_fg_parameters {
 /**
  * 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
  * @resis_high:			battery upper resistance limit
  * @resis_low:			battery lower resistance limit
- * @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
@@ -394,7 +386,6 @@ struct ab8500_maxim_parameters {
 struct ab8500_battery_type {
 	int resis_high;
 	int resis_low;
-	int normal_cur_lvl;
 	int normal_vol_lvl;
 	int maint_a_cur_lvl;
 	int maint_a_vol_lvl;
@@ -431,15 +422,15 @@ struct ab8500_bm_capacity_levels {
 /**
  * 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
+ * @usb_curr_max_ua:	maximum allowed USB charger current in uA
  * @ac_volt_max:	maximum allowed AC charger voltage in mV
- * @ac_curr_max:	maximum allowed AC charger current in mA
+ * @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 usb_curr_max_ua;
 	int ac_volt_max;
-	int ac_curr_max;
+	int ac_curr_max_ua;
 };
 
 /**

drivers/power/supply/ab8500-chargalg.h

@@ -32,7 +32,7 @@ struct ux500_charger_ops {
  * @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_curr_ua	maximum output charger current in uA
  * @enabled		indicates if this charger is used or not
  * @external		external charger unit (pm2xxx)
  */
@@ -40,7 +40,7 @@ struct ux500_charger {
 	struct power_supply *psy;
 	struct ux500_charger_ops ops;
 	int max_out_volt;
-	int max_out_curr;
+	int max_out_curr_ua;
 	int wdt_refresh;
 	bool enabled;
 	bool external;

drivers/power/supply/ab8500_bmdata.c

@@ -83,7 +83,6 @@ static const struct batres_vs_temp temp_to_batres_tbl_thermistor[] = {
 static struct ab8500_battery_type bat_type_thermistor_unknown = {
 	.resis_high = 0,
 	.resis_low = 0,
-	.normal_cur_lvl = 400,
 	.normal_vol_lvl = 4100,
 	.maint_a_cur_lvl = 400,
 	.maint_a_vol_lvl = 4050,
@@ -133,16 +132,16 @@ static const struct ab8500_fg_parameters fg = {
 
 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,
+	.usb_curr_max_ua	= 1500000,
 	.ac_volt_max		= 7500,
-	.ac_curr_max		= 1500,
+	.ac_curr_max_ua		= 1500000,
 };
 
 /* This is referenced directly in the charger code */
@@ -201,6 +200,9 @@ int ab8500_bm_of_probe(struct power_supply *psy,
 		bi->overvoltage_limit_uv = 4050000;
 	}
 
+	if (bi->constant_charge_current_max_ua < 0)
+		bi->constant_charge_current_max_ua = 400000;
+
 	if (bi->charge_term_current_ua)
 		/* Charging stops when we drop below this current */
 		bi->charge_term_current_ua = 200000;