int of_batterydata_read_data(struct device_node *batterydata_container_node,
struct bms_battery_data *batt_data,
int batt_id_uv)
{
struct device_node *node, *best_node, *df_node;
struct batt_id_rng id_range;
size_t sz = sizeof(struct batt_id_rng) / sizeof(int);
struct batt_ids batt_ids;
int delta, best_delta, batt_id_kohm, rpull_up_kohm,
vadc_vdd_uv, best_id_kohm, i, rc = 0;
int default_kohm;
node = batterydata_container_node;
OF_PROP_READ(rpull_up_kohm, "rpull-up-kohm", node, rc, false);
OF_PROP_READ(vadc_vdd_uv, "vref-batt-therm-uv", node, rc, false);
if (rc)
return rc;
OF_PROP_READ(default_kohm, "default-kohm", node, rc, true);
df_node = NULL;
batt_id_kohm = of_batterydata_convert_battery_id_kohm(batt_id_uv,
rpull_up_kohm, vadc_vdd_uv);
best_node = NULL;
best_delta = 0;
best_id_kohm = 0;
/*
* Find the battery data with a battery id resistor closest to this one
*/
for_each_child_of_node(batterydata_container_node, node) {
rc = of_batterydata_read_batt_id_kohm(node,
"qcom,batt-id-kohm",
&batt_ids);
if (rc)
continue;
for (i = 0; i < batt_ids.num; i++) {
delta = abs(batt_ids.kohm[i] - batt_id_kohm);
if (delta < best_delta || !best_node) {
best_node = node;
best_delta = delta;
best_id_kohm = batt_ids.kohm[i];
}
if ((default_kohm != -EINVAL)
&& (batt_ids.kohm[i] == default_kohm))
df_node = node;
}
}
int of_batterydata_read_data(struct device_node *batterydata_container_node,
struct bms_battery_data *batt_data,
int batt_id_uv)
{
struct device_node *node, *best_node;
struct batt_ids batt_ids;
const char *battery_type = NULL;
int delta, best_delta, batt_id_kohm, rpull_up_kohm,
vadc_vdd_uv, best_id_kohm, i, rc = 0;
node = batterydata_container_node;
OF_PROP_READ(rpull_up_kohm, "rpull-up-kohm", node, rc, false);
OF_PROP_READ(vadc_vdd_uv, "vref-batt-therm", node, rc, false);
if (rc)
return rc;
batt_id_kohm = of_batterydata_convert_battery_id_kohm(batt_id_uv,
rpull_up_kohm, vadc_vdd_uv);
pr_info("[BATT][BMS] batt_id_kohm=%d\n",batt_id_kohm);
best_node = NULL;
best_delta = 0;
best_id_kohm = 0;
/*
* Find the battery data with a battery id resistor closest to this one
*/
for_each_child_of_node(batterydata_container_node, node) {
rc = of_batterydata_read_batt_id_kohm(node,
"qcom,batt-id-kohm",
&batt_ids);
if (rc)
continue;
for (i = 0; i < batt_ids.num; i++) {
delta = abs(batt_ids.kohm[i] - batt_id_kohm);
if (delta < best_delta || !best_node) {
best_node = node;
best_delta = delta;
best_id_kohm = batt_ids.kohm[i];
}
}
}
static int of_batterydata_load_battery_data(struct device_node *node,
int best_id_kohm,
struct bms_battery_data *batt_data)
{
int rc;
rc = of_batterydata_read_single_row_lut(node, "qcom,fcc-temp-lut",
batt_data->fcc_temp_lut);
if (rc)
return rc;
rc = of_batterydata_read_pc_temp_ocv_lut(node,
"qcom,pc-temp-ocv-lut",
batt_data->pc_temp_ocv_lut);
if (rc)
return rc;
rc = of_batterydata_read_sf_lut(node, "qcom,rbatt-sf-lut",
batt_data->rbatt_sf_lut);
if (rc)
return rc;
rc = of_batterydata_read_ibat_temp_acc_lut(node, "qcom,ibat-acc-lut",
batt_data->ibat_acc_lut);
if (rc)
return rc;
rc = of_property_read_string(node, "qcom,battery-type",
&batt_data->battery_type);
if (rc) {
pr_err("Error reading qcom,battery-type property rc=%d\n", rc);
batt_data->battery_type = NULL;
return rc;
}
OF_PROP_READ(batt_data->fcc, "fcc-mah", node, rc, false);
OF_PROP_READ(batt_data->default_rbatt_mohm,
"default-rbatt-mohm", node, rc, false);
OF_PROP_READ(batt_data->rbatt_capacitive_mohm,
"rbatt-capacitive-mohm", node, rc, false);
OF_PROP_READ(batt_data->flat_ocv_threshold_uv,
"flat-ocv-threshold-uv", node, rc, true);
OF_PROP_READ(batt_data->max_voltage_uv,
"max-voltage-uv", node, rc, true);
OF_PROP_READ(batt_data->cutoff_uv, "v-cutoff-uv", node, rc, true);
OF_PROP_READ(batt_data->iterm_ua, "chg-term-ua", node, rc, true);
batt_data->batt_id_kohm = best_id_kohm;
return rc;
}
static int of_batterydata_load_battery_data(struct device_node *node,
int best_id_kohm,
struct bms_battery_data *batt_data)
{
int rc;
#ifdef CONFIG_HUAWEI_KERNEL
int warm_bat_decidegc = 0;
int warm_bat_chg_ma = 0;
int warm_bat_mv = 0;
int cool_bat_decidegc = 0;
int cool_bat_chg_ma = 0;
int cool_bat_mv = 0;
int cold_bat_decidegc = 0;
int hot_bat_decidegc = 0;
rc = 0;
OF_PROP_READ(warm_bat_decidegc, "warm-bat-decidegc", node, rc, false);
OF_PROP_READ(warm_bat_chg_ma, "ibatmax-warm-ma", node, rc, false);
OF_PROP_READ(warm_bat_mv, "warm-bat-mv", node, rc, false);
OF_PROP_READ(cool_bat_decidegc, "cool-bat-decidegc", node, rc, false);
OF_PROP_READ(cool_bat_chg_ma, "ibatmax-cool-ma", node, rc, false);
OF_PROP_READ(cool_bat_mv, "cool-bat-mv", node, rc, false);
OF_PROP_READ(hot_bat_decidegc, "hot-bat-decidegc", node, rc, false);
OF_PROP_READ(cold_bat_decidegc, "cold-bat-decidegc", node, rc, false);
if (!rc)
{
batt_data->warm_bat_decidegc = warm_bat_decidegc;
batt_data->warm_bat_chg_ma = warm_bat_chg_ma;
batt_data->warm_bat_mv = warm_bat_mv;
batt_data->cool_bat_decidegc = cool_bat_decidegc;
batt_data->cool_bat_chg_ma = cool_bat_chg_ma;
batt_data->cool_bat_mv = cool_bat_mv;
batt_data->hot_bat_decidegc = hot_bat_decidegc;
batt_data->cold_bat_decidegc = cold_bat_decidegc;
}
rc = 0;
#endif
rc = of_batterydata_read_single_row_lut(node, "qcom,fcc-temp-lut",
batt_data->fcc_temp_lut);
if (rc)
return rc;
rc = of_batterydata_read_pc_temp_ocv_lut(node,
"qcom,pc-temp-ocv-lut",
batt_data->pc_temp_ocv_lut);
if (rc)
return rc;
rc = of_batterydata_read_sf_lut(node, "qcom,rbatt-sf-lut",
batt_data->rbatt_sf_lut);
if (rc)
return rc;
OF_PROP_READ(batt_data->fcc, "fcc-mah", node, rc, false);
OF_PROP_READ(batt_data->default_rbatt_mohm,
"default-rbatt-mohm", node, rc, false);
OF_PROP_READ(batt_data->rbatt_capacitive_mohm,
"rbatt-capacitive-mohm", node, rc, false);
OF_PROP_READ(batt_data->flat_ocv_threshold_uv,
"flat-ocv-threshold", node, rc, true);
OF_PROP_READ(batt_data->max_voltage_uv,
"max-voltage-uv", node, rc, true);
OF_PROP_READ(batt_data->cutoff_uv, "v-cutoff-uv", node, rc, true);
OF_PROP_READ(batt_data->iterm_ua, "chg-term-ua", node, rc, true);
batt_data->batt_id_kohm = best_id_kohm;
return rc;
}
