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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
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/*
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* Power supply driver for the goldfish emulator
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*
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* Copyright (C) 2008 Google, Inc.
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* Copyright (C) 2012 Intel, Inc.
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* Copyright (C) 2013 Intel, Inc.
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* Author: Mike Lockwood <lockwood@android.com>
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*/
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#include <linux/module.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/power_supply.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/acpi.h>
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struct goldfish_battery_data {
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void __iomem *reg_base;
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int irq;
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spinlock_t lock;
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struct power_supply *battery;
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struct power_supply *ac;
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};
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#define GOLDFISH_BATTERY_READ(data, addr) \
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(readl(data->reg_base + addr))
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#define GOLDFISH_BATTERY_WRITE(data, addr, x) \
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(writel(x, data->reg_base + addr))
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enum {
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/* status register */
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BATTERY_INT_STATUS = 0x00,
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/* set this to enable IRQ */
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BATTERY_INT_ENABLE = 0x04,
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BATTERY_AC_ONLINE = 0x08,
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BATTERY_STATUS = 0x0C,
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BATTERY_HEALTH = 0x10,
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BATTERY_PRESENT = 0x14,
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BATTERY_CAPACITY = 0x18,
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BATTERY_VOLTAGE = 0x1C,
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BATTERY_TEMP = 0x20,
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BATTERY_CHARGE_COUNTER = 0x24,
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BATTERY_VOLTAGE_MAX = 0x28,
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BATTERY_CURRENT_MAX = 0x2C,
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BATTERY_CURRENT_NOW = 0x30,
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BATTERY_CURRENT_AVG = 0x34,
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BATTERY_CHARGE_FULL_UAH = 0x38,
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BATTERY_CYCLE_COUNT = 0x40,
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BATTERY_STATUS_CHANGED = 1U << 0,
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AC_STATUS_CHANGED = 1U << 1,
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BATTERY_INT_MASK = BATTERY_STATUS_CHANGED | AC_STATUS_CHANGED,
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};
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static int goldfish_ac_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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struct goldfish_battery_data *data = power_supply_get_drvdata(psy);
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int ret = 0;
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switch (psp) {
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case POWER_SUPPLY_PROP_ONLINE:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_AC_ONLINE);
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_MAX:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_VOLTAGE_MAX);
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break;
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case POWER_SUPPLY_PROP_CURRENT_MAX:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CURRENT_MAX);
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static int goldfish_battery_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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struct goldfish_battery_data *data = power_supply_get_drvdata(psy);
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int ret = 0;
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switch (psp) {
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case POWER_SUPPLY_PROP_STATUS:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_STATUS);
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break;
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case POWER_SUPPLY_PROP_HEALTH:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_HEALTH);
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break;
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case POWER_SUPPLY_PROP_PRESENT:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_PRESENT);
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break;
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case POWER_SUPPLY_PROP_TECHNOLOGY:
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val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
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break;
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case POWER_SUPPLY_PROP_CAPACITY:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CAPACITY);
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_NOW:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_VOLTAGE);
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break;
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case POWER_SUPPLY_PROP_TEMP:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_TEMP);
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break;
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case POWER_SUPPLY_PROP_CHARGE_COUNTER:
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val->intval = GOLDFISH_BATTERY_READ(data,
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BATTERY_CHARGE_COUNTER);
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break;
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case POWER_SUPPLY_PROP_CURRENT_NOW:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CURRENT_NOW);
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break;
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case POWER_SUPPLY_PROP_CURRENT_AVG:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CURRENT_AVG);
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break;
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case POWER_SUPPLY_PROP_CHARGE_FULL:
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val->intval = GOLDFISH_BATTERY_READ(data,
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BATTERY_CHARGE_FULL_UAH);
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break;
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case POWER_SUPPLY_PROP_CYCLE_COUNT:
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val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CYCLE_COUNT);
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static enum power_supply_property goldfish_battery_props[] = {
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POWER_SUPPLY_PROP_STATUS,
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POWER_SUPPLY_PROP_HEALTH,
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POWER_SUPPLY_PROP_PRESENT,
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POWER_SUPPLY_PROP_TECHNOLOGY,
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POWER_SUPPLY_PROP_CAPACITY,
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POWER_SUPPLY_PROP_VOLTAGE_NOW,
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POWER_SUPPLY_PROP_TEMP,
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POWER_SUPPLY_PROP_CHARGE_COUNTER,
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POWER_SUPPLY_PROP_CURRENT_NOW,
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POWER_SUPPLY_PROP_CURRENT_AVG,
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POWER_SUPPLY_PROP_CHARGE_FULL,
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POWER_SUPPLY_PROP_CYCLE_COUNT,
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};
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static enum power_supply_property goldfish_ac_props[] = {
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POWER_SUPPLY_PROP_ONLINE,
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POWER_SUPPLY_PROP_VOLTAGE_MAX,
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POWER_SUPPLY_PROP_CURRENT_MAX,
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};
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static irqreturn_t goldfish_battery_interrupt(int irq, void *dev_id)
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{
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unsigned long irq_flags;
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struct goldfish_battery_data *data = dev_id;
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uint32_t status;
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spin_lock_irqsave(&data->lock, irq_flags);
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/* read status flags, which will clear the interrupt */
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status = GOLDFISH_BATTERY_READ(data, BATTERY_INT_STATUS);
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status &= BATTERY_INT_MASK;
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if (status & BATTERY_STATUS_CHANGED)
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power_supply_changed(data->battery);
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if (status & AC_STATUS_CHANGED)
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power_supply_changed(data->ac);
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spin_unlock_irqrestore(&data->lock, irq_flags);
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return status ? IRQ_HANDLED : IRQ_NONE;
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}
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static const struct power_supply_desc battery_desc = {
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.properties = goldfish_battery_props,
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.num_properties = ARRAY_SIZE(goldfish_battery_props),
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.get_property = goldfish_battery_get_property,
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.name = "battery",
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.type = POWER_SUPPLY_TYPE_BATTERY,
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};
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static const struct power_supply_desc ac_desc = {
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.properties = goldfish_ac_props,
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.num_properties = ARRAY_SIZE(goldfish_ac_props),
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.get_property = goldfish_ac_get_property,
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.name = "ac",
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.type = POWER_SUPPLY_TYPE_MAINS,
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};
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static int goldfish_battery_probe(struct platform_device *pdev)
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{
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int ret;
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struct resource *r;
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struct goldfish_battery_data *data;
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struct power_supply_config psy_cfg = {};
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data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
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if (data == NULL)
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return -ENOMEM;
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spin_lock_init(&data->lock);
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r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (r == NULL) {
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dev_err(&pdev->dev, "platform_get_resource failed\n");
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return -ENODEV;
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}
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data->reg_base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
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if (data->reg_base == NULL) {
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dev_err(&pdev->dev, "unable to remap MMIO\n");
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return -ENOMEM;
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}
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data->irq = platform_get_irq(pdev, 0);
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if (data->irq < 0) {
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dev_err(&pdev->dev, "platform_get_irq failed\n");
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return -ENODEV;
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}
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ret = devm_request_irq(&pdev->dev, data->irq,
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goldfish_battery_interrupt,
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IRQF_SHARED, pdev->name, data);
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if (ret)
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return ret;
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psy_cfg.drv_data = data;
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data->ac = power_supply_register(&pdev->dev, &ac_desc, &psy_cfg);
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if (IS_ERR(data->ac))
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return PTR_ERR(data->ac);
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data->battery = power_supply_register(&pdev->dev, &battery_desc,
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&psy_cfg);
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if (IS_ERR(data->battery)) {
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power_supply_unregister(data->ac);
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return PTR_ERR(data->battery);
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}
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platform_set_drvdata(pdev, data);
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GOLDFISH_BATTERY_WRITE(data, BATTERY_INT_ENABLE, BATTERY_INT_MASK);
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return 0;
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}
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static int goldfish_battery_remove(struct platform_device *pdev)
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{
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struct goldfish_battery_data *data = platform_get_drvdata(pdev);
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power_supply_unregister(data->battery);
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power_supply_unregister(data->ac);
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return 0;
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}
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static const struct of_device_id goldfish_battery_of_match[] = {
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{ .compatible = "google,goldfish-battery", },
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{},
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};
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MODULE_DEVICE_TABLE(of, goldfish_battery_of_match);
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static const struct acpi_device_id goldfish_battery_acpi_match[] = {
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{ "GFSH0001", 0 },
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{ },
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};
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MODULE_DEVICE_TABLE(acpi, goldfish_battery_acpi_match);
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static struct platform_driver goldfish_battery_device = {
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.probe = goldfish_battery_probe,
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.remove = goldfish_battery_remove,
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.driver = {
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.name = "goldfish-battery",
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.of_match_table = goldfish_battery_of_match,
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.acpi_match_table = ACPI_PTR(goldfish_battery_acpi_match),
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}
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};
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module_platform_driver(goldfish_battery_device);
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MODULE_AUTHOR("Mike Lockwood lockwood@android.com");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Battery driver for the Goldfish emulator");
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