drivers/mfd/axp20x-i2c.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * I2C driver for the X-Powers' Power Management ICs
5  * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
6  * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
9  * This driver supports the I2C variants.
18 #include <linux/i2c.h>
25 static int axp20x_i2c_probe(struct i2c_client *i2c,  in axp20x_i2c_probe()  argument
31 	axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);  in axp20x_i2c_probe()
33 		return -ENOMEM;  in axp20x_i2c_probe()
35 	axp20x->dev = &i2c->dev;  in axp20x_i2c_probe()
36 	axp20x->irq = i2c->irq;  in axp20x_i2c_probe()
37 	dev_set_drvdata(axp20x->dev, axp20x);  in axp20x_i2c_probe()
43 	axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg);  in axp20x_i2c_probe()
44 	if (IS_ERR(axp20x->regmap)) {  in axp20x_i2c_probe()
45 		ret = PTR_ERR(axp20x->regmap);  in axp20x_i2c_probe()
46 		dev_err(&i2c->dev, "regmap init failed: %d\n", ret);  in axp20x_i2c_probe()
53 static int axp20x_i2c_remove(struct i2c_client *i2c)  in axp20x_i2c_remove()  argument
55 	struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);  in axp20x_i2c_remove()
61 	{ .compatible = "x-powers,axp152", .data = (void *)AXP152_ID },
62 	{ .compatible = "x-powers,axp202", .data = (void *)AXP202_ID },
63 	{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
64 	{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
65 	{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
66 	{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
67 	{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
82 MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
97 		.name	= "axp20x-i2c",
108 MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X");