projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| af873fce | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 2edd3b69 LW |
2 | /* |
| 3 | * Driver for TPS61050/61052 boost converters, typically used for white LEDs | |
| 4 | * or audio amplifiers. | |
| 5 | * | |
| 6 | * Copyright (C) 2011 ST-Ericsson SA | |
| 7 | * Written on behalf of Linaro for ST-Ericsson | |
| 8 | * | |
| 9 | * Author: Linus Walleij <linus.walleij@linaro.org> | |
| 2edd3b69 LW |
10 | */ |
| 11 | ||
| 12 | #include <linux/module.h> | |
| 13 | #include <linux/kernel.h> | |
| 14 | #include <linux/init.h> | |
| 15 | #include <linux/err.h> | |
| 7e507119 | 16 | #include <linux/regmap.h> |
| 2edd3b69 LW |
17 | #include <linux/platform_device.h> |
| 18 | #include <linux/regulator/driver.h> | |
| 19 | #include <linux/mfd/core.h> | |
| 20 | #include <linux/mfd/tps6105x.h> | |
| 21 | ||
| c55979b7 | 22 | static const unsigned int tps6105x_voltages[] = { |
| 2edd3b69 LW |
23 | 4500000, |
| 24 | 5000000, | |
| 25 | 5250000, | |
| 26 | 5000000, /* There is an additional 5V */ | |
| 27 | }; | |
| 28 | ||
| 55c81934 | 29 | static const struct regulator_ops tps6105x_regulator_ops = { |
| fad2ba68 AL |
30 | .enable = regulator_enable_regmap, |
| 31 | .disable = regulator_disable_regmap, | |
| 32 | .is_enabled = regulator_is_enabled_regmap, | |
| 33 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
| 34 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
| c55979b7 | 35 | .list_voltage = regulator_list_voltage_table, |
| 2edd3b69 LW |
36 | }; |
| 37 | ||
| d882d73e | 38 | static const struct regulator_desc tps6105x_regulator_desc = { |
| 2edd3b69 | 39 | .name = "tps6105x-boost", |
| f0a19fa8 | 40 | .of_match = of_match_ptr("regulator"), |
| 2edd3b69 LW |
41 | .ops = &tps6105x_regulator_ops, |
| 42 | .type = REGULATOR_VOLTAGE, | |
| 43 | .id = 0, | |
| 44 | .owner = THIS_MODULE, | |
| 45 | .n_voltages = ARRAY_SIZE(tps6105x_voltages), | |
| c55979b7 | 46 | .volt_table = tps6105x_voltages, |
| fad2ba68 AL |
47 | .vsel_reg = TPS6105X_REG_0, |
| 48 | .vsel_mask = TPS6105X_REG0_VOLTAGE_MASK, | |
| 49 | .enable_reg = TPS6105X_REG_0, | |
| 50 | .enable_mask = TPS6105X_REG0_MODE_MASK, | |
| 51 | .enable_val = TPS6105X_REG0_MODE_VOLTAGE << | |
| 52 | TPS6105X_REG0_MODE_SHIFT, | |
| 2edd3b69 LW |
53 | }; |
| 54 | ||
| 55 | /* | |
| 56 | * Registers the chip as a voltage regulator | |
| 57 | */ | |
| a5023574 | 58 | static int tps6105x_regulator_probe(struct platform_device *pdev) |
| 2edd3b69 | 59 | { |
| a7c98ce2 | 60 | struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev); |
| 2edd3b69 | 61 | struct tps6105x_platform_data *pdata = tps6105x->pdata; |
| c172708d | 62 | struct regulator_config config = { }; |
| 2edd3b69 LW |
63 | int ret; |
| 64 | ||
| 65 | /* This instance is not set for regulator mode so bail out */ | |
| 66 | if (pdata->mode != TPS6105X_MODE_VOLTAGE) { | |
| 67 | dev_info(&pdev->dev, | |
| 4932e89d | 68 | "chip not in voltage mode mode, exit probe\n"); |
| 2edd3b69 LW |
69 | return 0; |
| 70 | } | |
| 71 | ||
| c172708d MB |
72 | config.dev = &tps6105x->client->dev; |
| 73 | config.init_data = pdata->regulator_data; | |
| 74 | config.driver_data = tps6105x; | |
| f0a19fa8 | 75 | config.of_node = pdev->dev.parent->of_node; |
| fad2ba68 | 76 | config.regmap = tps6105x->regmap; |
| c172708d | 77 | |
| 2edd3b69 | 78 | /* Register regulator with framework */ |
| 6a2b5a93 JH |
79 | tps6105x->regulator = devm_regulator_register(&pdev->dev, |
| 80 | &tps6105x_regulator_desc, | |
| 81 | &config); | |
| 2edd3b69 LW |
82 | if (IS_ERR(tps6105x->regulator)) { |
| 83 | ret = PTR_ERR(tps6105x->regulator); | |
| 84 | dev_err(&tps6105x->client->dev, | |
| 85 | "failed to register regulator\n"); | |
| 86 | return ret; | |
| 87 | } | |
| f0f060bd | 88 | platform_set_drvdata(pdev, tps6105x); |
| 2edd3b69 LW |
89 | |
| 90 | return 0; | |
| 91 | } | |
| 92 | ||
| 2edd3b69 LW |
93 | static struct platform_driver tps6105x_regulator_driver = { |
| 94 | .driver = { | |
| 95 | .name = "tps6105x-regulator", | |
| 259b93b2 | 96 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
| 2edd3b69 LW |
97 | }, |
| 98 | .probe = tps6105x_regulator_probe, | |
| 2edd3b69 LW |
99 | }; |
| 100 | ||
| 101 | static __init int tps6105x_regulator_init(void) | |
| 102 | { | |
| 103 | return platform_driver_register(&tps6105x_regulator_driver); | |
| 104 | } | |
| 105 | subsys_initcall(tps6105x_regulator_init); | |
| 106 | ||
| 107 | static __exit void tps6105x_regulator_exit(void) | |
| 108 | { | |
| 109 | platform_driver_unregister(&tps6105x_regulator_driver); | |
| 110 | } | |
| 111 | module_exit(tps6105x_regulator_exit); | |
| 112 | ||
| 113 | MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>"); | |
| 114 | MODULE_DESCRIPTION("TPS6105x regulator driver"); | |
| 115 | MODULE_LICENSE("GPL v2"); | |
| 116 | MODULE_ALIAS("platform:tps6105x-regulator"); |