^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) * Arizona-i2c.c -- Arizona I2C bus interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2012 Wolfson Microelectronics plc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Mark Brown <broonie@opensource.wolfsonmicro.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/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/i2c.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/pm_runtime.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) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/mfd/arizona/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "arizona.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static int arizona_i2c_probe(struct i2c_client *i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct arizona *arizona;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) const struct regmap_config *regmap_config = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) unsigned long type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) if (i2c->dev.of_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) type = arizona_of_get_type(&i2c->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) type = id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) case WM5102:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (IS_ENABLED(CONFIG_MFD_WM5102))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) regmap_config = &wm5102_i2c_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) case WM5110:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) case WM8280:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (IS_ENABLED(CONFIG_MFD_WM5110))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) regmap_config = &wm5110_i2c_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case WM8997:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (IS_ENABLED(CONFIG_MFD_WM8997))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) regmap_config = &wm8997_i2c_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) case WM8998:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) case WM1814:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (IS_ENABLED(CONFIG_MFD_WM8998))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) regmap_config = &wm8998_i2c_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) dev_err(&i2c->dev, "Unknown device type %ld\n", type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (!regmap_config) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dev_err(&i2c->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) "No kernel support for device type %ld\n", type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if (arizona == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) arizona->regmap = devm_regmap_init_i2c(i2c, regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (IS_ERR(arizona->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ret = PTR_ERR(arizona->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return ret;
^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) arizona->type = type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) arizona->dev = &i2c->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) arizona->irq = i2c->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return arizona_dev_init(arizona);
^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) static int arizona_i2c_remove(struct i2c_client *i2c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct arizona *arizona = dev_get_drvdata(&i2c->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) arizona_dev_exit(arizona);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static const struct i2c_device_id arizona_i2c_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) { "wm5102", WM5102 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) { "wm5110", WM5110 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) { "wm8280", WM8280 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) { "wm8997", WM8997 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) { "wm8998", WM8998 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) { "wm1814", WM1814 },
^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) MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static struct i2c_driver arizona_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .name = "arizona",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .pm = &arizona_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .of_match_table = of_match_ptr(arizona_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .probe = arizona_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) .remove = arizona_i2c_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .id_table = arizona_i2c_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) module_i2c_driver(arizona_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) MODULE_DESCRIPTION("Arizona I2C bus interface");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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