1 // SPDX-License-Identifier: GPL-2.0
6 #include "ab8500-bm.h"
10 /* Default: between this temp and AB8500_TEMP_UNDER charging is reduced */
12 /* Default: between this temp and AB8500_TEMP_OVER charging is reduced */
14 /* Default: over this temp, charging is stopped */
47  * Note that the batres_vs_temp table must be strictly sorted by falling
48  * temperature values to work. Factory resistance is 300 mOhm and the
49  * resistance values to the right are percentages of 300 mOhm.
52 	{ .temp = 40, .resistance = 40 /* 120 mOhm */ },
53 	{ .temp = 30, .resistance = 45 /* 135 mOhm */ },
54 	{ .temp = 20, .resistance = 55 /* 165 mOhm */ },
55 	{ .temp = 10, .resistance = 77 /* 230 mOhm */ },
56 	{ .temp = 00, .resistance = 108 /* 325 mOhm */ },
57 	{ .temp = -10, .resistance = 158 /* 445 mOhm */ },
58 	{ .temp = -20, .resistance = 198 /* 595 mOhm */ },
144 	struct device *dev = &psy->dev;  in ab8500_bm_of_probe()
147 	ret = power_supply_get_battery_info(psy, &bm->bi);  in ab8500_bm_of_probe()
152 	bi = bm->bi;  in ab8500_bm_of_probe()
155 	if (bi->charge_full_design_uah < 0)  in ab8500_bm_of_probe()
157 		bi->charge_full_design_uah = 612000;  in ab8500_bm_of_probe()
163 	if ((bi->voltage_min_design_uv < 0) ||  in ab8500_bm_of_probe()
164 	    (bi->voltage_max_design_uv < 0)) {  in ab8500_bm_of_probe()
166 		bi->voltage_min_design_uv = 3700000;  in ab8500_bm_of_probe()
168 		bi->voltage_max_design_uv = 4050000;  in ab8500_bm_of_probe()
171 	if (bi->constant_charge_current_max_ua < 0)  in ab8500_bm_of_probe()
172 		bi->constant_charge_current_max_ua = 400000;  in ab8500_bm_of_probe()
174 	if (bi->constant_charge_voltage_max_uv < 0)  in ab8500_bm_of_probe()
175 		bi->constant_charge_voltage_max_uv = 4100000;  in ab8500_bm_of_probe()
177 	if (bi->charge_term_current_ua)  in ab8500_bm_of_probe()
179 		bi->charge_term_current_ua = 200000;  in ab8500_bm_of_probe()
181 	if (!bi->maintenance_charge || !bi->maintenance_charge_size) {  in ab8500_bm_of_probe()
182 		bi->maintenance_charge = ab8500_maint_charg_table;  in ab8500_bm_of_probe()
183 		bi->maintenance_charge_size = ARRAY_SIZE(ab8500_maint_charg_table);  in ab8500_bm_of_probe()
186 	if (bi->alert_low_temp_charge_current_ua < 0 ||  in ab8500_bm_of_probe()
187 	    bi->alert_low_temp_charge_voltage_uv < 0)  in ab8500_bm_of_probe()
189 		bi->alert_low_temp_charge_current_ua = 300000;  in ab8500_bm_of_probe()
190 		bi->alert_low_temp_charge_voltage_uv = 4000000;  in ab8500_bm_of_probe()
192 	if (bi->alert_high_temp_charge_current_ua < 0 ||  in ab8500_bm_of_probe()
193 	    bi->alert_high_temp_charge_voltage_uv < 0)  in ab8500_bm_of_probe()
195 		bi->alert_high_temp_charge_current_ua = 300000;  in ab8500_bm_of_probe()
196 		bi->alert_high_temp_charge_voltage_uv = 4000000;  in ab8500_bm_of_probe()
200 	 * Internal resistance and factory resistance are tightly coupled  in ab8500_bm_of_probe()
203 	if ((bi->factory_internal_resistance_uohm < 0) ||  in ab8500_bm_of_probe()
204 	    !bi->resist_table) {  in ab8500_bm_of_probe()
205 		bi->factory_internal_resistance_uohm = 300000;  in ab8500_bm_of_probe()
206 		bi->resist_table = temp_to_batres_tbl_thermistor;  in ab8500_bm_of_probe()
207 		bi->resist_table_size = ARRAY_SIZE(temp_to_batres_tbl_thermistor);  in ab8500_bm_of_probe()
211 	if (bi->bti_resistance_ohm < 0 ||  in ab8500_bm_of_probe()
212 	    bi->bti_resistance_tolerance < 0) {  in ab8500_bm_of_probe()
213 		bi->bti_resistance_ohm = 7000;  in ab8500_bm_of_probe()
214 		bi->bti_resistance_tolerance = 20;  in ab8500_bm_of_probe()
217 	if (!bi->ocv_table[0]) {  in ab8500_bm_of_probe()
218 		/* Default capacity table at say 25 degrees Celsius */  in ab8500_bm_of_probe()
219 		bi->ocv_temp[0] = 25;  in ab8500_bm_of_probe()
220 		bi->ocv_table[0] = ocv_cap_tbl;  in ab8500_bm_of_probe()
221 		bi->ocv_table_size[0] = ARRAY_SIZE(ocv_cap_tbl);  in ab8500_bm_of_probe()
224 	if (bi->temp_min == INT_MIN)  in ab8500_bm_of_probe()
225 		bi->temp_min = AB8500_TEMP_UNDER;  in ab8500_bm_of_probe()
226 	if (bi->temp_max == INT_MAX)  in ab8500_bm_of_probe()
227 		bi->temp_max = AB8500_TEMP_OVER;  in ab8500_bm_of_probe()
228 	if (bi->temp_alert_min == INT_MIN)  in ab8500_bm_of_probe()
229 		bi->temp_alert_min = AB8500_TEMP_LOW;  in ab8500_bm_of_probe()
230 	if (bi->temp_alert_max == INT_MAX)  in ab8500_bm_of_probe()
231 		bi->temp_alert_max = AB8500_TEMP_HIGH;  in ab8500_bm_of_probe()
232 	bm->temp_hysteresis = AB8500_TEMP_HYSTERESIS;  in ab8500_bm_of_probe()
240 	power_supply_put_battery_info(psy, bm->bi);  in ab8500_bm_of_remove()