^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 2009-2010 Creative Product Design
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Marc Reilly marc@cpdesign.com.au
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/mfd/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/mfd/mc13xxx.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/of.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/of_gpio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "mc13xxx.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) .name = "mc13892",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .name = "mc34708",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* sentinel */
^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) MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static const struct of_device_id mc13xxx_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .compatible = "fsl,mc13892",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .data = &mc13xxx_variant_mc13892,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .compatible = "fsl,mc34708",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .data = &mc13xxx_variant_mc34708,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* sentinel */
^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) MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static const struct regmap_config mc13xxx_regmap_i2c_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .val_bits = 24,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .max_register = MC13XXX_NUMREGS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .cache_type = REGCACHE_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int mc13xxx_i2c_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct mc13xxx *mc13xxx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (!mc13xxx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) dev_set_drvdata(&client->dev, mc13xxx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) mc13xxx->irq = client->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) mc13xxx->regmap = devm_regmap_init_i2c(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) &mc13xxx_regmap_i2c_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (IS_ERR(mc13xxx->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ret = PTR_ERR(mc13xxx->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (client->dev.of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) const struct of_device_id *of_id =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) of_match_device(mc13xxx_dt_ids, &client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) mc13xxx->variant = of_id->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) mc13xxx->variant = (void *)id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return mc13xxx_common_init(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static int mc13xxx_i2c_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return mc13xxx_common_exit(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static struct i2c_driver mc13xxx_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .id_table = mc13xxx_i2c_device_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .name = "mc13xxx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .of_match_table = mc13xxx_dt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .probe = mc13xxx_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .remove = mc13xxx_i2c_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int __init mc13xxx_i2c_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return i2c_add_driver(&mc13xxx_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) subsys_initcall(mc13xxx_i2c_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static void __exit mc13xxx_i2c_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) i2c_del_driver(&mc13xxx_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) module_exit(mc13xxx_i2c_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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