Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * MFD driver for Active-semi ACT8945a PMIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2015 Atmel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Author: Wenyou Yang <wenyou.yang@atmel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/mfd/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static const struct mfd_cell act8945a_devs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		.name = "act8945a-regulator",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		.name = "act8945a-charger",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		.of_compatible = "active-semi,act8945a-charger",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const struct regmap_config act8945a_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static int act8945a_i2c_probe(struct i2c_client *i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 			      const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	if (IS_ERR(regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		ret = PTR_ERR(regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	i2c_set_clientdata(i2c, regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 				   act8945a_devs, ARRAY_SIZE(act8945a_devs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 				   NULL, 0, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		dev_err(&i2c->dev, "Failed to add sub devices\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static const struct i2c_device_id act8945a_i2c_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	{ "act8945a", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	{}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static const struct of_device_id act8945a_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	{ .compatible = "active-semi,act8945a", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) MODULE_DEVICE_TABLE(of, act8945a_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static struct i2c_driver act8945a_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		   .name = "act8945a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 		   .of_match_table = of_match_ptr(act8945a_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 	.probe = act8945a_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	.id_table = act8945a_i2c_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int __init act8945a_i2c_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 	return i2c_add_driver(&act8945a_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) subsys_initcall(act8945a_i2c_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static void __exit act8945a_i2c_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 	i2c_del_driver(&act8945a_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) module_exit(act8945a_i2c_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) MODULE_LICENSE("GPL");