e0f1abeba5
- This patch adds device tree support for fuelgauge driver - optimize bm devices platform_data usage and of_probe(...) Note: of_probe() routine for battery managed devices is made common across all bm drivers. - test status: - interrupt numbers assigned differs between legacy and FDT mode. Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
522 lines
12 KiB
C
522 lines
12 KiB
C
#include <linux/export.h>
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#include <linux/power_supply.h>
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#include <linux/of.h>
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#include <linux/mfd/abx500.h>
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#include <linux/mfd/abx500/ab8500.h>
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#include <linux/mfd/abx500/ab8500-bm.h>
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/*
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* These are the defined batteries that uses a NTC and ID resistor placed
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* inside of the battery pack.
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* Note that the res_to_temp table must be strictly sorted by falling resistance
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* values to work.
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*/
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static struct abx500_res_to_temp temp_tbl_A_thermistor[] = {
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{-5, 53407},
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{ 0, 48594},
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{ 5, 43804},
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{10, 39188},
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{15, 34870},
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{20, 30933},
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{25, 27422},
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{30, 24347},
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{35, 21694},
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{40, 19431},
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{45, 17517},
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{50, 15908},
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{55, 14561},
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{60, 13437},
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{65, 12500},
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};
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static struct abx500_res_to_temp temp_tbl_B_thermistor[] = {
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{-5, 165418},
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{ 0, 159024},
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{ 5, 151921},
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{10, 144300},
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{15, 136424},
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{20, 128565},
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{25, 120978},
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{30, 113875},
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{35, 107397},
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{40, 101629},
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{45, 96592},
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{50, 92253},
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{55, 88569},
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{60, 85461},
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{65, 82869},
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};
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static struct abx500_v_to_cap cap_tbl_A_thermistor[] = {
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{4171, 100},
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{4114, 95},
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{4009, 83},
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{3947, 74},
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{3907, 67},
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{3863, 59},
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{3830, 56},
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{3813, 53},
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{3791, 46},
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{3771, 33},
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{3754, 25},
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{3735, 20},
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{3717, 17},
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{3681, 13},
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{3664, 8},
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{3651, 6},
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{3635, 5},
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{3560, 3},
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{3408, 1},
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{3247, 0},
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};
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static struct abx500_v_to_cap cap_tbl_B_thermistor[] = {
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{4161, 100},
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{4124, 98},
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{4044, 90},
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{4003, 85},
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{3966, 80},
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{3933, 75},
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{3888, 67},
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{3849, 60},
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{3813, 55},
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{3787, 47},
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{3772, 30},
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{3751, 25},
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{3718, 20},
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{3681, 16},
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{3660, 14},
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{3589, 10},
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{3546, 7},
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{3495, 4},
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{3404, 2},
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{3250, 0},
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};
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static struct abx500_v_to_cap cap_tbl[] = {
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{4186, 100},
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{4163, 99},
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{4114, 95},
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{4068, 90},
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{3990, 80},
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{3926, 70},
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{3898, 65},
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{3866, 60},
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{3833, 55},
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{3812, 50},
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{3787, 40},
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{3768, 30},
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{3747, 25},
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{3730, 20},
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{3705, 15},
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{3699, 14},
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{3684, 12},
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{3672, 9},
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{3657, 7},
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{3638, 6},
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{3556, 4},
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{3424, 2},
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{3317, 1},
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{3094, 0},
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};
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/*
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* Note that the res_to_temp table must be strictly sorted by falling
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* resistance values to work.
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*/
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static struct abx500_res_to_temp temp_tbl[] = {
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{-5, 214834},
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{ 0, 162943},
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{ 5, 124820},
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{10, 96520},
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{15, 75306},
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{20, 59254},
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{25, 47000},
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{30, 37566},
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{35, 30245},
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{40, 24520},
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{45, 20010},
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{50, 16432},
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{55, 13576},
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{60, 11280},
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{65, 9425},
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};
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/*
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* Note that the batres_vs_temp table must be strictly sorted by falling
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* temperature values to work.
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*/
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static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = {
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{ 40, 120},
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{ 30, 135},
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{ 20, 165},
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{ 10, 230},
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{ 00, 325},
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{-10, 445},
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{-20, 595},
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};
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/*
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* Note that the batres_vs_temp table must be strictly sorted by falling
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* temperature values to work.
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*/
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static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = {
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{ 60, 300},
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{ 30, 300},
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{ 20, 300},
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{ 10, 300},
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{ 00, 300},
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{-10, 300},
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{-20, 300},
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};
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/* battery resistance table for LI ION 9100 battery */
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static struct batres_vs_temp temp_to_batres_tbl_9100[] = {
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{ 60, 180},
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{ 30, 180},
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{ 20, 180},
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{ 10, 180},
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{ 00, 180},
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{-10, 180},
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{-20, 180},
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};
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static struct abx500_battery_type bat_type_thermistor[] = {
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[BATTERY_UNKNOWN] = {
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/* First element always represent the UNKNOWN battery */
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.name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
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.resis_high = 0,
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.resis_low = 0,
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.battery_resistance = 300,
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.charge_full_design = 612,
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.nominal_voltage = 3700,
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.termination_vol = 4050,
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.termination_curr = 200,
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.recharge_vol = 3990,
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.normal_cur_lvl = 400,
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.normal_vol_lvl = 4100,
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.maint_a_cur_lvl = 400,
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.maint_a_vol_lvl = 4050,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 400,
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.maint_b_vol_lvl = 4000,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
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.r_to_t_tbl = temp_tbl,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
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.v_to_cap_tbl = cap_tbl,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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{
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.name = POWER_SUPPLY_TECHNOLOGY_LIPO,
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.resis_high = 53407,
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.resis_low = 12500,
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.battery_resistance = 300,
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.charge_full_design = 900,
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.nominal_voltage = 3600,
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.termination_vol = 4150,
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.termination_curr = 80,
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.recharge_vol = 4130,
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.normal_cur_lvl = 700,
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.normal_vol_lvl = 4200,
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.maint_a_cur_lvl = 600,
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.maint_a_vol_lvl = 4150,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 600,
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.maint_b_vol_lvl = 4100,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_A_thermistor),
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.r_to_t_tbl = temp_tbl_A_thermistor,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_A_thermistor),
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.v_to_cap_tbl = cap_tbl_A_thermistor,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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{
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.name = POWER_SUPPLY_TECHNOLOGY_LIPO,
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.resis_high = 165418,
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.resis_low = 82869,
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.battery_resistance = 300,
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.charge_full_design = 900,
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.nominal_voltage = 3600,
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.termination_vol = 4150,
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.termination_curr = 80,
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.recharge_vol = 4130,
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.normal_cur_lvl = 700,
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.normal_vol_lvl = 4200,
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.maint_a_cur_lvl = 600,
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.maint_a_vol_lvl = 4150,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 600,
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.maint_b_vol_lvl = 4100,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_B_thermistor),
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.r_to_t_tbl = temp_tbl_B_thermistor,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_B_thermistor),
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.v_to_cap_tbl = cap_tbl_B_thermistor,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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};
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static struct abx500_battery_type bat_type_ext_thermistor[] = {
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[BATTERY_UNKNOWN] = {
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/* First element always represent the UNKNOWN battery */
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.name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
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.resis_high = 0,
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.resis_low = 0,
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.battery_resistance = 300,
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.charge_full_design = 612,
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.nominal_voltage = 3700,
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.termination_vol = 4050,
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.termination_curr = 200,
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.recharge_vol = 3990,
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.normal_cur_lvl = 400,
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.normal_vol_lvl = 4100,
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.maint_a_cur_lvl = 400,
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.maint_a_vol_lvl = 4050,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 400,
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.maint_b_vol_lvl = 4000,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
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.r_to_t_tbl = temp_tbl,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
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.v_to_cap_tbl = cap_tbl,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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/*
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* These are the batteries that doesn't have an internal NTC resistor to measure
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* its temperature. The temperature in this case is measure with a NTC placed
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* near the battery but on the PCB.
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*/
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{
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.name = POWER_SUPPLY_TECHNOLOGY_LIPO,
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.resis_high = 76000,
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.resis_low = 53000,
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.battery_resistance = 300,
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.charge_full_design = 900,
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.nominal_voltage = 3700,
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.termination_vol = 4150,
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.termination_curr = 100,
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.recharge_vol = 4130,
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.normal_cur_lvl = 700,
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.normal_vol_lvl = 4200,
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.maint_a_cur_lvl = 600,
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.maint_a_vol_lvl = 4150,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 600,
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.maint_b_vol_lvl = 4100,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
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.r_to_t_tbl = temp_tbl,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
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.v_to_cap_tbl = cap_tbl,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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{
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.name = POWER_SUPPLY_TECHNOLOGY_LION,
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.resis_high = 30000,
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.resis_low = 10000,
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.battery_resistance = 300,
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.charge_full_design = 950,
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.nominal_voltage = 3700,
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.termination_vol = 4150,
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.termination_curr = 100,
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.recharge_vol = 4130,
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.normal_cur_lvl = 700,
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.normal_vol_lvl = 4200,
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.maint_a_cur_lvl = 600,
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.maint_a_vol_lvl = 4150,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 600,
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.maint_b_vol_lvl = 4100,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
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.r_to_t_tbl = temp_tbl,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
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.v_to_cap_tbl = cap_tbl,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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{
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.name = POWER_SUPPLY_TECHNOLOGY_LION,
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.resis_high = 95000,
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.resis_low = 76001,
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.battery_resistance = 300,
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.charge_full_design = 950,
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.nominal_voltage = 3700,
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.termination_vol = 4150,
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.termination_curr = 100,
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.recharge_vol = 4130,
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.normal_cur_lvl = 700,
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.normal_vol_lvl = 4200,
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.maint_a_cur_lvl = 600,
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.maint_a_vol_lvl = 4150,
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.maint_a_chg_timer_h = 60,
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.maint_b_cur_lvl = 600,
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.maint_b_vol_lvl = 4100,
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.maint_b_chg_timer_h = 200,
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.low_high_cur_lvl = 300,
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.low_high_vol_lvl = 4000,
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.n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
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.r_to_t_tbl = temp_tbl,
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.n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
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.v_to_cap_tbl = cap_tbl,
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.n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
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.batres_tbl = temp_to_batres_tbl_thermistor,
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},
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};
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static const struct abx500_bm_capacity_levels cap_levels = {
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.critical = 2,
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.low = 10,
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.normal = 70,
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.high = 95,
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.full = 100,
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};
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static const struct abx500_fg_parameters fg = {
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.recovery_sleep_timer = 10,
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.recovery_total_time = 100,
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.init_timer = 1,
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.init_discard_time = 5,
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.init_total_time = 40,
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.high_curr_time = 60,
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.accu_charging = 30,
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.accu_high_curr = 30,
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.high_curr_threshold = 50,
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.lowbat_threshold = 3100,
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.battok_falling_th_sel0 = 2860,
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.battok_raising_th_sel1 = 2860,
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.user_cap_limit = 15,
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.maint_thres = 97,
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};
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static const struct abx500_maxim_parameters maxi_params = {
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.ena_maxi = true,
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.chg_curr = 910,
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.wait_cycles = 10,
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.charger_curr_step = 100,
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};
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static const struct abx500_bm_charger_parameters chg = {
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.usb_volt_max = 5500,
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.usb_curr_max = 1500,
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.ac_volt_max = 7500,
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.ac_curr_max = 1500,
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};
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struct abx500_bm_data ab8500_bm_data = {
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.temp_under = 3,
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.temp_low = 8,
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.temp_high = 43,
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.temp_over = 48,
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.main_safety_tmr_h = 4,
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.temp_interval_chg = 20,
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.temp_interval_nochg = 120,
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.usb_safety_tmr_h = 4,
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.bkup_bat_v = BUP_VCH_SEL_2P6V,
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.bkup_bat_i = BUP_ICH_SEL_150UA,
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.no_maintenance = false,
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.adc_therm = ABx500_ADC_THERM_BATCTRL,
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.chg_unknown_bat = false,
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.enable_overshoot = false,
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.fg_res = 100,
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.cap_levels = &cap_levels,
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.bat_type = bat_type_thermistor,
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.n_btypes = 3,
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.batt_id = 0,
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.interval_charging = 5,
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.interval_not_charging = 120,
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.temp_hysteresis = 3,
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.gnd_lift_resistance = 34,
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.maxi = &maxi_params,
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.chg_params = &chg,
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.fg_params = &fg,
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};
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int __devinit
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bmdevs_of_probe(struct device *dev,
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struct device_node *np,
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struct abx500_bm_data **battery)
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{
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struct abx500_battery_type *btype;
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struct device_node *np_bat_supply;
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struct abx500_bm_data *bat;
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const char *btech;
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char bat_tech[8];
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int i, thermistor;
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*battery = &ab8500_bm_data;
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/* get phandle to 'battery-info' node */
|
|
np_bat_supply = of_parse_phandle(np, "battery", 0);
|
|
if (!np_bat_supply) {
|
|
dev_err(dev, "missing property battery\n");
|
|
return -EINVAL;
|
|
}
|
|
if (of_property_read_bool(np_bat_supply,
|
|
"thermistor-on-batctrl"))
|
|
thermistor = NTC_INTERNAL;
|
|
else
|
|
thermistor = NTC_EXTERNAL;
|
|
|
|
bat = *battery;
|
|
if (thermistor == NTC_EXTERNAL) {
|
|
bat->n_btypes = 4;
|
|
bat->bat_type = bat_type_ext_thermistor;
|
|
bat->adc_therm = ABx500_ADC_THERM_BATTEMP;
|
|
}
|
|
btech = of_get_property(np_bat_supply,
|
|
"stericsson,battery-type", NULL);
|
|
if (!btech) {
|
|
dev_warn(dev, "missing property battery-name/type\n");
|
|
strcpy(bat_tech, "UNKNOWN");
|
|
} else {
|
|
strcpy(bat_tech, btech);
|
|
}
|
|
|
|
if (strncmp(bat_tech, "LION", 4) == 0) {
|
|
bat->no_maintenance = true;
|
|
bat->chg_unknown_bat = true;
|
|
bat->bat_type[BATTERY_UNKNOWN].charge_full_design = 2600;
|
|
bat->bat_type[BATTERY_UNKNOWN].termination_vol = 4150;
|
|
bat->bat_type[BATTERY_UNKNOWN].recharge_vol = 4130;
|
|
bat->bat_type[BATTERY_UNKNOWN].normal_cur_lvl = 520;
|
|
bat->bat_type[BATTERY_UNKNOWN].normal_vol_lvl = 4200;
|
|
}
|
|
/* select the battery resolution table */
|
|
for (i = 0; i < bat->n_btypes; ++i) {
|
|
btype = (bat->bat_type + i);
|
|
if (thermistor == NTC_EXTERNAL) {
|
|
btype->batres_tbl =
|
|
temp_to_batres_tbl_ext_thermistor;
|
|
} else if (strncmp(bat_tech, "LION", 4) == 0) {
|
|
btype->batres_tbl =
|
|
temp_to_batres_tbl_9100;
|
|
} else {
|
|
btype->batres_tbl =
|
|
temp_to_batres_tbl_thermistor;
|
|
}
|
|
}
|
|
of_node_put(np_bat_supply);
|
|
return 0;
|
|
}
|