diff options
Diffstat (limited to 'drivers/power/supply/sc27xx_fuel_gauge.c')
| -rw-r--r-- | drivers/power/supply/sc27xx_fuel_gauge.c | 65 |
1 files changed, 30 insertions, 35 deletions
diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c index be42e814ea34..a7ed9de8a289 100644 --- a/drivers/power/supply/sc27xx_fuel_gauge.c +++ b/drivers/power/supply/sc27xx_fuel_gauge.c @@ -5,6 +5,7 @@ #include <linux/iio/consumer.h> #include <linux/interrupt.h> #include <linux/kernel.h> +#include <linux/math64.h> #include <linux/module.h> #include <linux/nvmem-consumer.h> #include <linux/of.h> @@ -133,14 +134,14 @@ static const char * const sc27xx_charger_supply_name[] = { "sc2723_charger", }; -static int sc27xx_fgu_adc_to_current(struct sc27xx_fgu_data *data, int adc) +static int sc27xx_fgu_adc_to_current(struct sc27xx_fgu_data *data, s64 adc) { - return DIV_ROUND_CLOSEST(adc * 1000, data->cur_1000ma_adc); + return DIV_S64_ROUND_CLOSEST(adc * 1000, data->cur_1000ma_adc); } -static int sc27xx_fgu_adc_to_voltage(struct sc27xx_fgu_data *data, int adc) +static int sc27xx_fgu_adc_to_voltage(struct sc27xx_fgu_data *data, s64 adc) { - return DIV_ROUND_CLOSEST(adc * 1000, data->vol_1000mv_adc); + return DIV_S64_ROUND_CLOSEST(adc * 1000, data->vol_1000mv_adc); } static int sc27xx_fgu_voltage_to_adc(struct sc27xx_fgu_data *data, int vol) @@ -732,13 +733,6 @@ static int sc27xx_fgu_set_property(struct power_supply *psy, return ret; } -static void sc27xx_fgu_external_power_changed(struct power_supply *psy) -{ - struct sc27xx_fgu_data *data = power_supply_get_drvdata(psy); - - power_supply_changed(data->battery); -} - static int sc27xx_fgu_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { @@ -773,7 +767,7 @@ static const struct power_supply_desc sc27xx_fgu_desc = { .num_properties = ARRAY_SIZE(sc27xx_fgu_props), .get_property = sc27xx_fgu_get_property, .set_property = sc27xx_fgu_set_property, - .external_power_changed = sc27xx_fgu_external_power_changed, + .external_power_changed = power_supply_changed, .property_is_writeable = sc27xx_fgu_property_is_writeable, .no_thermal = true, }; @@ -997,8 +991,8 @@ static int sc27xx_fgu_calibration(struct sc27xx_fgu_data *data) static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data) { - struct power_supply_battery_info info = { }; - struct power_supply_battery_ocv_table *table; + struct power_supply_battery_info *info; + const struct power_supply_battery_ocv_table *table; int ret, delta_clbcnt, alarm_adc; ret = power_supply_get_battery_info(data->battery, &info); @@ -1007,24 +1001,23 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data) 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->cap_table = devm_kmemdup(data->dev, table, - data->table_len * sizeof(*table), - GFP_KERNEL); + data->cap_table = devm_kmemdup_array(data->dev, table, 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; } @@ -1034,19 +1027,19 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data) 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) @@ -1147,7 +1140,6 @@ disable_fgu: static int sc27xx_fgu_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = dev->of_node; struct power_supply_config fgu_cfg = { }; struct sc27xx_fgu_data *data; int ret, irq; @@ -1189,10 +1181,14 @@ static int sc27xx_fgu_probe(struct platform_device *pdev) return PTR_ERR(data->charge_chan); } - data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN); + data->gpiod = devm_gpiod_get(dev, "battery-detect", GPIOD_IN); if (IS_ERR(data->gpiod)) { - dev_err(dev, "failed to get battery detection GPIO\n"); - return PTR_ERR(data->gpiod); + data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN); + if (IS_ERR(data->gpiod)) { + dev_err(dev, "failed to get battery detection GPIO\n"); + return PTR_ERR(data->gpiod); + } + dev_warn(dev, "bat-detect is deprecated, please use battery-detect\n"); } ret = gpiod_get_value_cansleep(data->gpiod); @@ -1207,7 +1203,7 @@ static int sc27xx_fgu_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); fgu_cfg.drv_data = data; - fgu_cfg.of_node = np; + fgu_cfg.fwnode = dev_fwnode(dev); data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc, &fgu_cfg); if (IS_ERR(data->battery)) { @@ -1228,10 +1224,8 @@ static int sc27xx_fgu_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(dev, "no irq resource specified\n"); + if (irq < 0) return irq; - } ret = devm_request_threaded_irq(data->dev, irq, NULL, sc27xx_fgu_interrupt, @@ -1341,6 +1335,7 @@ static const struct of_device_id sc27xx_fgu_of_match[] = { { .compatible = "sprd,sc2731-fgu", }, { } }; +MODULE_DEVICE_TABLE(of, sc27xx_fgu_of_match); static struct platform_driver sc27xx_fgu_driver = { .probe = sc27xx_fgu_probe, |