mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 01:36:48 +07:00
2aae471d66
spdxcheck.py complains:
drivers/power/supply/goldfish_battery.c: 1:28 Invalid License ID: GPL
which is correct because GPL is not a valid identifier. Of course this
could have been caught by checkpatch.pl _before_ submitting or merging the
patch.
WARNING: 'SPDX-License-Identifier: GPL' is not supported in LICENSES/...
#19: FILE: drivers/power/supply/goldfish_battery.c:1:
+// SPDX-License-Identifier: GPL
Which is absolutely hillarious as the commit introducing this wreckage says
in the changelog:
There was a checkpatch complain:
"Missing or malformed SPDX-License-Identifier tag".
Oh well. Replacing a checkpatch warning by a different checkpatch warning
is a really useful exercise.
Use the proper GPL-2.0 identifier which is what the boiler plate in the
file had originally.
Fixes: e75e3a125b ("drivers: power: supply: goldfish_battery: Put an SPDX tag")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
289 lines
7.5 KiB
C
289 lines
7.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Power supply driver for the goldfish emulator
|
|
*
|
|
* Copyright (C) 2008 Google, Inc.
|
|
* Copyright (C) 2012 Intel, Inc.
|
|
* Copyright (C) 2013 Intel, Inc.
|
|
* Author: Mike Lockwood <lockwood@android.com>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/err.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/power_supply.h>
|
|
#include <linux/types.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/io.h>
|
|
#include <linux/acpi.h>
|
|
|
|
struct goldfish_battery_data {
|
|
void __iomem *reg_base;
|
|
int irq;
|
|
spinlock_t lock;
|
|
|
|
struct power_supply *battery;
|
|
struct power_supply *ac;
|
|
};
|
|
|
|
#define GOLDFISH_BATTERY_READ(data, addr) \
|
|
(readl(data->reg_base + addr))
|
|
#define GOLDFISH_BATTERY_WRITE(data, addr, x) \
|
|
(writel(x, data->reg_base + addr))
|
|
|
|
enum {
|
|
/* status register */
|
|
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_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,
|
|
};
|
|
|
|
|
|
static int goldfish_ac_get_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
struct goldfish_battery_data *data = power_supply_get_drvdata(psy);
|
|
int ret = 0;
|
|
|
|
switch (psp) {
|
|
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;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int goldfish_battery_get_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
struct goldfish_battery_data *data = power_supply_get_drvdata(psy);
|
|
int ret = 0;
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_STATUS:
|
|
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_STATUS);
|
|
break;
|
|
case POWER_SUPPLY_PROP_HEALTH:
|
|
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_HEALTH);
|
|
break;
|
|
case POWER_SUPPLY_PROP_PRESENT:
|
|
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_PRESENT);
|
|
break;
|
|
case POWER_SUPPLY_PROP_TECHNOLOGY:
|
|
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
|
|
break;
|
|
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;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static enum power_supply_property goldfish_battery_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
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)
|
|
{
|
|
unsigned long irq_flags;
|
|
struct goldfish_battery_data *data = dev_id;
|
|
uint32_t status;
|
|
|
|
spin_lock_irqsave(&data->lock, irq_flags);
|
|
|
|
/* read status flags, which will clear the interrupt */
|
|
status = GOLDFISH_BATTERY_READ(data, BATTERY_INT_STATUS);
|
|
status &= BATTERY_INT_MASK;
|
|
|
|
if (status & BATTERY_STATUS_CHANGED)
|
|
power_supply_changed(data->battery);
|
|
if (status & AC_STATUS_CHANGED)
|
|
power_supply_changed(data->ac);
|
|
|
|
spin_unlock_irqrestore(&data->lock, irq_flags);
|
|
return status ? IRQ_HANDLED : IRQ_NONE;
|
|
}
|
|
|
|
static const struct power_supply_desc battery_desc = {
|
|
.properties = goldfish_battery_props,
|
|
.num_properties = ARRAY_SIZE(goldfish_battery_props),
|
|
.get_property = goldfish_battery_get_property,
|
|
.name = "battery",
|
|
.type = POWER_SUPPLY_TYPE_BATTERY,
|
|
};
|
|
|
|
static const struct power_supply_desc ac_desc = {
|
|
.properties = goldfish_ac_props,
|
|
.num_properties = ARRAY_SIZE(goldfish_ac_props),
|
|
.get_property = goldfish_ac_get_property,
|
|
.name = "ac",
|
|
.type = POWER_SUPPLY_TYPE_MAINS,
|
|
};
|
|
|
|
static int goldfish_battery_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
struct resource *r;
|
|
struct goldfish_battery_data *data;
|
|
struct power_supply_config psy_cfg = {};
|
|
|
|
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
|
|
if (data == NULL)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_init(&data->lock);
|
|
|
|
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (r == NULL) {
|
|
dev_err(&pdev->dev, "platform_get_resource failed\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
data->reg_base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
|
|
if (data->reg_base == NULL) {
|
|
dev_err(&pdev->dev, "unable to remap MMIO\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
data->irq = platform_get_irq(pdev, 0);
|
|
if (data->irq < 0) {
|
|
dev_err(&pdev->dev, "platform_get_irq failed\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
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);
|
|
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);
|
|
return PTR_ERR(data->battery);
|
|
}
|
|
|
|
platform_set_drvdata(pdev, 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);
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id goldfish_battery_of_match[] = {
|
|
{ .compatible = "google,goldfish-battery", },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, goldfish_battery_of_match);
|
|
|
|
static const struct acpi_device_id goldfish_battery_acpi_match[] = {
|
|
{ "GFSH0001", 0 },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, goldfish_battery_acpi_match);
|
|
|
|
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,
|
|
.acpi_match_table = ACPI_PTR(goldfish_battery_acpi_match),
|
|
}
|
|
};
|
|
module_platform_driver(goldfish_battery_device);
|
|
|
|
MODULE_AUTHOR("Mike Lockwood lockwood@android.com");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Battery driver for the Goldfish emulator");
|