^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author: Keerthy <j-keerthy@ti.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/mfd/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/mfd/lp87565.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static const struct regmap_config lp87565_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) .val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) .max_register = LP87565_REG_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static const struct mfd_cell lp87565_cells[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) { .name = "lp87565-q1-regulator", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) { .name = "lp87565-q1-gpio", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static const struct of_device_id of_lp87565_match_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) { .compatible = "ti,lp87565", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .compatible = "ti,lp87524-q1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .data = (void *)LP87565_DEVICE_TYPE_LP87524_Q1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .compatible = "ti,lp87565-q1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .compatible = "ti,lp87561-q1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .data = (void *)LP87565_DEVICE_TYPE_LP87561_Q1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) MODULE_DEVICE_TABLE(of, of_lp87565_match_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static int lp87565_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) const struct i2c_device_id *ids)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct lp87565 *lp87565;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) const struct of_device_id *of_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) unsigned int otpid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (!lp87565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) lp87565->dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (IS_ERR(lp87565->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) ret = PTR_ERR(lp87565->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) dev_err(lp87565->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) "Failed to initialize register map: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return ret;
^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) ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) dev_err(lp87565->dev, "Failed to read OTP ID\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) of_id = of_match_device(of_lp87565_match_table, &client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) if (of_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) lp87565->dev_type = (enum lp87565_device_type)of_id->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) i2c_set_clientdata(client, lp87565);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return devm_mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) lp87565_cells, ARRAY_SIZE(lp87565_cells),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) NULL, 0, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static const struct i2c_device_id lp87565_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) { "lp87565-q1", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) MODULE_DEVICE_TABLE(i2c, lp87565_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static struct i2c_driver lp87565_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .name = "lp87565",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .of_match_table = of_lp87565_match_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .probe = lp87565_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .id_table = lp87565_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) module_i2c_driver(lp87565_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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