// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright ( C ) 2015 Texas Instruments Incorporated - https : //www.ti.com/
* Andrew F . Davis < afd @ ti . com >
*
* Based on the TPS65912 driver
*/
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/mfd/tps65086.h>
static const struct mfd_cell tps65086_cells[] = {
{ .name = "tps65086-regulator" , },
{ .name = "tps65086-gpio" , },
{ .name = "tps65086-reset" , },
};
static const struct regmap_range tps65086_yes_ranges[] = {
regmap_reg_range(TPS65086_IRQ, TPS65086_IRQ),
regmap_reg_range(TPS65086_PMICSTAT, TPS65086_SHUTDNSRC),
regmap_reg_range(TPS65086_GPOCTRL, TPS65086_GPOCTRL),
regmap_reg_range(TPS65086_PG_STATUS1, TPS65086_OC_STATUS),
};
static const struct regmap_access_table tps65086_volatile_table = {
.yes_ranges = tps65086_yes_ranges,
.n_yes_ranges = ARRAY_SIZE(tps65086_yes_ranges),
};
static const struct regmap_config tps65086_regmap_config = {
.reg_bits = 8 ,
.val_bits = 8 ,
.cache_type = REGCACHE_MAPLE,
.volatile_table = &tps65086_volatile_table,
.max_register = TPS65086_OC_STATUS,
};
static const struct regmap_irq tps65086_irqs[] = {
REGMAP_IRQ_REG(TPS65086_IRQ_DIETEMP, 0 , TPS65086_IRQ_DIETEMP_MASK),
REGMAP_IRQ_REG(TPS65086_IRQ_SHUTDN, 0 , TPS65086_IRQ_SHUTDN_MASK),
REGMAP_IRQ_REG(TPS65086_IRQ_FAULT, 0 , TPS65086_IRQ_FAULT_MASK),
};
static const struct regmap_irq_chip tps65086_irq_chip = {
.name = "tps65086" ,
.status_base = TPS65086_IRQ,
.mask_base = TPS65086_IRQ_MASK,
.ack_base = TPS65086_IRQ,
.init_ack_masked = true ,
.num_regs = 1 ,
.irqs = tps65086_irqs,
.num_irqs = ARRAY_SIZE(tps65086_irqs),
};
static const struct of_device_id tps65086_of_match_table[] = {
{ .compatible = "ti,tps65086" , },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, tps65086_of_match_table);
static int tps65086_probe(struct i2c_client *client)
{
struct tps65086 *tps;
unsigned int version;
int ret;
tps = devm_kzalloc(&client->dev, sizeof (*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
i2c_set_clientdata(client, tps);
tps->dev = &client->dev;
tps->irq = client->irq;
tps->regmap = devm_regmap_init_i2c(client, &tps65086_regmap_config);
if (IS_ERR(tps->regmap)) {
dev_err(tps->dev, "Failed to initialize register map\n" );
return PTR_ERR(tps->regmap);
}
/* Store device ID to load regulator configuration that fit to IC variant */
ret = regmap_read(tps->regmap, TPS65086_DEVICEID1, &tps->chip_id);
if (ret) {
dev_err(tps->dev, "Failed to read revision register 1\n" );
return ret;
}
ret = regmap_read(tps->regmap, TPS65086_DEVICEID2, &version);
if (ret) {
dev_err(tps->dev, "Failed to read revision register 2\n" );
return ret;
}
dev_info(tps->dev, "Device: TPS65086%01lX, OTP: %c, Rev: %ld\n" ,
(version & TPS65086_DEVICEID2_PART_MASK),
(char )((version & TPS65086_DEVICEID2_OTP_MASK) >> 4 ) + 'A' ,
(version & TPS65086_DEVICEID2_REV_MASK) >> 6 );
if (tps->irq > 0 ) {
ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0 ,
&tps65086_irq_chip, &tps->irq_data);
if (ret) {
dev_err(tps->dev, "Failed to register IRQ chip\n" );
return ret;
}
}
ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65086_cells,
ARRAY_SIZE(tps65086_cells), NULL, 0 ,
regmap_irq_get_domain(tps->irq_data));
if (ret && tps->irq > 0 )
regmap_del_irq_chip(tps->irq, tps->irq_data);
return ret;
}
static void tps65086_remove(struct i2c_client *client)
{
struct tps65086 *tps = i2c_get_clientdata(client);
if (tps->irq > 0 )
regmap_del_irq_chip(tps->irq, tps->irq_data);
}
static const struct i2c_device_id tps65086_id_table[] = {
{ "tps65086" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, tps65086_id_table);
static struct i2c_driver tps65086_driver = {
.driver = {
.name = "tps65086" ,
.of_match_table = tps65086_of_match_table,
},
.probe = tps65086_probe,
.remove = tps65086_remove,
.id_table = tps65086_id_table,
};
module_i2c_driver(tps65086_driver);
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>" );
MODULE_DESCRIPTION("TPS65086 PMIC Driver" );
MODULE_LICENSE("GPL v2" );
Messung V0.5 in Prozent C=96 H=100 G=97
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland