mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Matti Vaittinen](/assets/img/avatar_default.png)
Casting address to unsigned int causes a warning on some 64 bit architectures. Fix the cast. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Mark Brown <broonie@kernel.org>
199 lines
5 KiB
C
199 lines
5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
//
|
|
// Copyright (C) 2018 ROHM Semiconductors
|
|
//
|
|
// ROHM BD71837MWV and BD71847MWV PMIC driver
|
|
//
|
|
// Datasheet for BD71837MWV available from
|
|
// https://www.rohm.com/datasheet/BD71837MWV/bd71837mwv-e
|
|
|
|
#include <linux/gpio_keys.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/input.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/mfd/rohm-bd718x7.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/types.h>
|
|
|
|
static struct gpio_keys_button button = {
|
|
.code = KEY_POWER,
|
|
.gpio = -1,
|
|
.type = EV_KEY,
|
|
};
|
|
|
|
static struct gpio_keys_platform_data bd718xx_powerkey_data = {
|
|
.buttons = &button,
|
|
.nbuttons = 1,
|
|
.name = "bd718xx-pwrkey",
|
|
};
|
|
|
|
static struct mfd_cell bd718xx_mfd_cells[] = {
|
|
{
|
|
.name = "gpio-keys",
|
|
.platform_data = &bd718xx_powerkey_data,
|
|
.pdata_size = sizeof(bd718xx_powerkey_data),
|
|
},
|
|
{ .name = "bd718xx-clk", },
|
|
{ .name = "bd718xx-pmic", },
|
|
};
|
|
|
|
static const struct regmap_irq bd718xx_irqs[] = {
|
|
REGMAP_IRQ_REG(BD718XX_INT_SWRST, 0, BD718XX_INT_SWRST_MASK),
|
|
REGMAP_IRQ_REG(BD718XX_INT_PWRBTN_S, 0, BD718XX_INT_PWRBTN_S_MASK),
|
|
REGMAP_IRQ_REG(BD718XX_INT_PWRBTN_L, 0, BD718XX_INT_PWRBTN_L_MASK),
|
|
REGMAP_IRQ_REG(BD718XX_INT_PWRBTN, 0, BD718XX_INT_PWRBTN_MASK),
|
|
REGMAP_IRQ_REG(BD718XX_INT_WDOG, 0, BD718XX_INT_WDOG_MASK),
|
|
REGMAP_IRQ_REG(BD718XX_INT_ON_REQ, 0, BD718XX_INT_ON_REQ_MASK),
|
|
REGMAP_IRQ_REG(BD718XX_INT_STBY_REQ, 0, BD718XX_INT_STBY_REQ_MASK),
|
|
};
|
|
|
|
static struct regmap_irq_chip bd718xx_irq_chip = {
|
|
.name = "bd718xx-irq",
|
|
.irqs = bd718xx_irqs,
|
|
.num_irqs = ARRAY_SIZE(bd718xx_irqs),
|
|
.num_regs = 1,
|
|
.irq_reg_stride = 1,
|
|
.status_base = BD718XX_REG_IRQ,
|
|
.mask_base = BD718XX_REG_MIRQ,
|
|
.ack_base = BD718XX_REG_IRQ,
|
|
.init_ack_masked = true,
|
|
.mask_invert = false,
|
|
};
|
|
|
|
static const struct regmap_range pmic_status_range = {
|
|
.range_min = BD718XX_REG_IRQ,
|
|
.range_max = BD718XX_REG_POW_STATE,
|
|
};
|
|
|
|
static const struct regmap_access_table volatile_regs = {
|
|
.yes_ranges = &pmic_status_range,
|
|
.n_yes_ranges = 1,
|
|
};
|
|
|
|
static const struct regmap_config bd718xx_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.volatile_table = &volatile_regs,
|
|
.max_register = BD718XX_MAX_REGISTER - 1,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static int bd718xx_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct bd718xx *bd718xx;
|
|
int ret;
|
|
|
|
if (!i2c->irq) {
|
|
dev_err(&i2c->dev, "No IRQ configured\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
bd718xx = devm_kzalloc(&i2c->dev, sizeof(struct bd718xx), GFP_KERNEL);
|
|
|
|
if (!bd718xx)
|
|
return -ENOMEM;
|
|
|
|
bd718xx->chip_irq = i2c->irq;
|
|
bd718xx->chip_type = (unsigned int)(uintptr_t)
|
|
of_device_get_match_data(&i2c->dev);
|
|
bd718xx->dev = &i2c->dev;
|
|
dev_set_drvdata(&i2c->dev, bd718xx);
|
|
|
|
bd718xx->regmap = devm_regmap_init_i2c(i2c, &bd718xx_regmap_config);
|
|
if (IS_ERR(bd718xx->regmap)) {
|
|
dev_err(&i2c->dev, "regmap initialization failed\n");
|
|
return PTR_ERR(bd718xx->regmap);
|
|
}
|
|
|
|
ret = devm_regmap_add_irq_chip(&i2c->dev, bd718xx->regmap,
|
|
bd718xx->chip_irq, IRQF_ONESHOT, 0,
|
|
&bd718xx_irq_chip, &bd718xx->irq_data);
|
|
if (ret) {
|
|
dev_err(&i2c->dev, "Failed to add irq_chip\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Configure short press to 10 milliseconds */
|
|
ret = regmap_update_bits(bd718xx->regmap,
|
|
BD718XX_REG_PWRONCONFIG0,
|
|
BD718XX_PWRBTN_PRESS_DURATION_MASK,
|
|
BD718XX_PWRBTN_SHORT_PRESS_10MS);
|
|
if (ret) {
|
|
dev_err(&i2c->dev,
|
|
"Failed to configure button short press timeout\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Configure long press to 10 seconds */
|
|
ret = regmap_update_bits(bd718xx->regmap,
|
|
BD718XX_REG_PWRONCONFIG1,
|
|
BD718XX_PWRBTN_PRESS_DURATION_MASK,
|
|
BD718XX_PWRBTN_LONG_PRESS_10S);
|
|
|
|
if (ret) {
|
|
dev_err(&i2c->dev,
|
|
"Failed to configure button long press timeout\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = regmap_irq_get_virq(bd718xx->irq_data, BD718XX_INT_PWRBTN_S);
|
|
|
|
if (ret < 0) {
|
|
dev_err(&i2c->dev, "Failed to get the IRQ\n");
|
|
return ret;
|
|
}
|
|
|
|
button.irq = ret;
|
|
|
|
ret = devm_mfd_add_devices(bd718xx->dev, PLATFORM_DEVID_AUTO,
|
|
bd718xx_mfd_cells,
|
|
ARRAY_SIZE(bd718xx_mfd_cells), NULL, 0,
|
|
regmap_irq_get_domain(bd718xx->irq_data));
|
|
if (ret)
|
|
dev_err(&i2c->dev, "Failed to create subdevices\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct of_device_id bd718xx_of_match[] = {
|
|
{
|
|
.compatible = "rohm,bd71837",
|
|
.data = (void *)BD718XX_TYPE_BD71837,
|
|
},
|
|
{
|
|
.compatible = "rohm,bd71847",
|
|
.data = (void *)BD718XX_TYPE_BD71847,
|
|
},
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, bd718xx_of_match);
|
|
|
|
static struct i2c_driver bd718xx_i2c_driver = {
|
|
.driver = {
|
|
.name = "rohm-bd718x7",
|
|
.of_match_table = bd718xx_of_match,
|
|
},
|
|
.probe = bd718xx_i2c_probe,
|
|
};
|
|
|
|
static int __init bd718xx_i2c_init(void)
|
|
{
|
|
return i2c_add_driver(&bd718xx_i2c_driver);
|
|
}
|
|
|
|
/* Initialise early so consumer devices can complete system boot */
|
|
subsys_initcall(bd718xx_i2c_init);
|
|
|
|
static void __exit bd718xx_i2c_exit(void)
|
|
{
|
|
i2c_del_driver(&bd718xx_i2c_driver);
|
|
}
|
|
module_exit(bd718xx_i2c_exit);
|
|
|
|
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
|
|
MODULE_DESCRIPTION("ROHM BD71837/BD71847 Power Management IC driver");
|
|
MODULE_LICENSE("GPL");
|