diff options
Diffstat (limited to 'drivers/power/supply/goldfish_battery.c')
| -rw-r--r-- | drivers/power/supply/goldfish_battery.c | 119 |
1 files changed, 70 insertions, 49 deletions
diff --git a/drivers/power/supply/goldfish_battery.c b/drivers/power/supply/goldfish_battery.c index f5c525e4482a..479195e35d73 100644 --- a/drivers/power/supply/goldfish_battery.c +++ b/drivers/power/supply/goldfish_battery.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Power supply driver for the goldfish emulator * @@ -5,15 +6,6 @@ * Copyright (C) 2012 Intel, Inc. * Copyright (C) 2013 Intel, Inc. * Author: Mike Lockwood <lockwood@android.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> @@ -40,27 +32,30 @@ struct goldfish_battery_data { #define GOLDFISH_BATTERY_WRITE(data, addr, x) \ (writel(x, data->reg_base + addr)) -/* - * Temporary variable used between goldfish_battery_probe() and - * goldfish_battery_open(). - */ -static struct goldfish_battery_data *battery_data; - enum { /* status register */ - BATTERY_INT_STATUS = 0x00, + BATTERY_INT_STATUS = 0x00, /* set this to enable IRQ */ - BATTERY_INT_ENABLE = 0x04, - - BATTERY_AC_ONLINE = 0x08, - BATTERY_STATUS = 0x0C, - BATTERY_HEALTH = 0x10, - BATTERY_PRESENT = 0x14, - BATTERY_CAPACITY = 0x18, + BATTERY_INT_ENABLE = 0x04, + + BATTERY_AC_ONLINE = 0x08, + BATTERY_STATUS = 0x0C, + BATTERY_HEALTH = 0x10, + BATTERY_PRESENT = 0x14, + BATTERY_CAPACITY = 0x18, + BATTERY_VOLTAGE = 0x1C, + BATTERY_TEMP = 0x20, + BATTERY_CHARGE_COUNTER = 0x24, + BATTERY_VOLTAGE_MAX = 0x28, + BATTERY_CURRENT_MAX = 0x2C, + BATTERY_CURRENT_NOW = 0x30, + BATTERY_CURRENT_AVG = 0x34, + BATTERY_CHARGE_FULL_UAH = 0x38, + BATTERY_CYCLE_COUNT = 0x40, BATTERY_STATUS_CHANGED = 1U << 0, AC_STATUS_CHANGED = 1U << 1, - BATTERY_INT_MASK = BATTERY_STATUS_CHANGED | AC_STATUS_CHANGED, + BATTERY_INT_MASK = BATTERY_STATUS_CHANGED | AC_STATUS_CHANGED, }; @@ -75,6 +70,12 @@ static int goldfish_ac_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_ONLINE: val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_AC_ONLINE); break; + case POWER_SUPPLY_PROP_VOLTAGE_MAX: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_VOLTAGE_MAX); + break; + case POWER_SUPPLY_PROP_CURRENT_MAX: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CURRENT_MAX); + break; default: ret = -EINVAL; break; @@ -105,6 +106,29 @@ static int goldfish_battery_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_CAPACITY: val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CAPACITY); break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_VOLTAGE); + break; + case POWER_SUPPLY_PROP_TEMP: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_TEMP); + break; + case POWER_SUPPLY_PROP_CHARGE_COUNTER: + val->intval = GOLDFISH_BATTERY_READ(data, + BATTERY_CHARGE_COUNTER); + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CURRENT_NOW); + break; + case POWER_SUPPLY_PROP_CURRENT_AVG: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CURRENT_AVG); + break; + case POWER_SUPPLY_PROP_CHARGE_FULL: + val->intval = GOLDFISH_BATTERY_READ(data, + BATTERY_CHARGE_FULL_UAH); + break; + case POWER_SUPPLY_PROP_CYCLE_COUNT: + val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CYCLE_COUNT); + break; default: ret = -EINVAL; break; @@ -119,10 +143,19 @@ static enum power_supply_property goldfish_battery_props[] = { POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_TECHNOLOGY, POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_CHARGE_COUNTER, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CYCLE_COUNT, }; static enum power_supply_property goldfish_ac_props[] = { POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CURRENT_MAX, }; static irqreturn_t goldfish_battery_interrupt(int irq, void *dev_id) @@ -188,61 +221,49 @@ static int goldfish_battery_probe(struct platform_device *pdev) } data->irq = platform_get_irq(pdev, 0); - if (data->irq < 0) { - dev_err(&pdev->dev, "platform_get_irq failed\n"); + if (data->irq < 0) return -ENODEV; - } - ret = devm_request_irq(&pdev->dev, data->irq, goldfish_battery_interrupt, - IRQF_SHARED, pdev->name, data); + ret = devm_request_irq(&pdev->dev, data->irq, + goldfish_battery_interrupt, + IRQF_SHARED, pdev->name, data); if (ret) return ret; psy_cfg.drv_data = data; - data->ac = power_supply_register(&pdev->dev, &ac_desc, &psy_cfg); + data->ac = devm_power_supply_register(&pdev->dev, + &ac_desc, + &psy_cfg); if (IS_ERR(data->ac)) return PTR_ERR(data->ac); - data->battery = power_supply_register(&pdev->dev, &battery_desc, - &psy_cfg); - if (IS_ERR(data->battery)) { - power_supply_unregister(data->ac); + data->battery = devm_power_supply_register(&pdev->dev, + &battery_desc, + &psy_cfg); + if (IS_ERR(data->battery)) return PTR_ERR(data->battery); - } - - platform_set_drvdata(pdev, data); - battery_data = data; GOLDFISH_BATTERY_WRITE(data, BATTERY_INT_ENABLE, BATTERY_INT_MASK); return 0; } -static int goldfish_battery_remove(struct platform_device *pdev) -{ - struct goldfish_battery_data *data = platform_get_drvdata(pdev); - - power_supply_unregister(data->battery); - power_supply_unregister(data->ac); - battery_data = NULL; - return 0; -} - static const struct of_device_id goldfish_battery_of_match[] = { { .compatible = "google,goldfish-battery", }, {}, }; MODULE_DEVICE_TABLE(of, goldfish_battery_of_match); +#ifdef CONFIG_ACPI static const struct acpi_device_id goldfish_battery_acpi_match[] = { { "GFSH0001", 0 }, { }, }; MODULE_DEVICE_TABLE(acpi, goldfish_battery_acpi_match); +#endif static struct platform_driver goldfish_battery_device = { .probe = goldfish_battery_probe, - .remove = goldfish_battery_remove, .driver = { .name = "goldfish-battery", .of_match_table = goldfish_battery_of_match, |