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-rw-r--r--drivers/regulator/Kconfig8
-rw-r--r--drivers/regulator/Makefile1
-rw-r--r--drivers/regulator/rt5033-regulator.c123
3 files changed, 132 insertions, 0 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 55d7b7b0f2e0..8558e1b21f05 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -521,6 +521,14 @@ config REGULATOR_RN5T618
521 help 521 help
522 Say y here to support the regulators found on Ricoh RN5T618 PMIC. 522 Say y here to support the regulators found on Ricoh RN5T618 PMIC.
523 523
524config REGULATOR_RT5033
525 tristate "Richtek RT5033 Regulators"
526 depends on MFD_RT5033
527 help
528 This adds support for voltage and current regulators in Richtek
529 RT5033 PMIC. The device supports multiple regulators like
530 current source, LDO and Buck.
531
524config REGULATOR_S2MPA01 532config REGULATOR_S2MPA01
525 tristate "Samsung S2MPA01 voltage regulator" 533 tristate "Samsung S2MPA01 voltage regulator"
526 depends on MFD_SEC_CORE 534 depends on MFD_SEC_CORE
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 1029ed39c512..1f28ebfc6f3a 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
69obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o 69obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o
70obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o 70obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o
71obj-$(CONFIG_REGULATOR_RN5T618) += rn5t618-regulator.o 71obj-$(CONFIG_REGULATOR_RN5T618) += rn5t618-regulator.o
72obj-$(CONFIG_REGULATOR_RT5033) += rt5033-regulator.o
72obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o 73obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o
73obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o 74obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o
74obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o 75obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o
diff --git a/drivers/regulator/rt5033-regulator.c b/drivers/regulator/rt5033-regulator.c
new file mode 100644
index 000000000000..870cc49438db
--- /dev/null
+++ b/drivers/regulator/rt5033-regulator.c
@@ -0,0 +1,123 @@
1/*
2 * Regulator driver for the Richtek RT5033
3 *
4 * Copyright (C) 2014 Samsung Electronics, Co., Ltd.
5 * Author: Beomho Seo <beomho.seo@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published bythe Free Software Foundation.
10 */
11
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/regulator/driver.h>
15#include <linux/mfd/rt5033.h>
16#include <linux/mfd/rt5033-private.h>
17#include <linux/regulator/of_regulator.h>
18
19static struct regulator_ops rt5033_safe_ldo_ops = {
20 .is_enabled = regulator_is_enabled_regmap,
21 .enable = regulator_enable_regmap,
22 .disable = regulator_disable_regmap,
23 .list_voltage = regulator_list_voltage_linear,
24};
25
26static struct regulator_ops rt5033_buck_ops = {
27 .is_enabled = regulator_is_enabled_regmap,
28 .enable = regulator_enable_regmap,
29 .disable = regulator_disable_regmap,
30 .list_voltage = regulator_list_voltage_linear,
31 .map_voltage = regulator_map_voltage_linear,
32 .get_voltage_sel = regulator_get_voltage_sel_regmap,
33 .set_voltage_sel = regulator_set_voltage_sel_regmap,
34};
35
36static const struct regulator_desc rt5033_supported_regulators[] = {
37 [RT5033_BUCK] = {
38 .name = "BUCK",
39 .id = RT5033_BUCK,
40 .ops = &rt5033_buck_ops,
41 .type = REGULATOR_VOLTAGE,
42 .owner = THIS_MODULE,
43 .n_voltages = RT5033_REGULATOR_BUCK_VOLTAGE_STEP_NUM,
44 .min_uV = RT5033_REGULATOR_BUCK_VOLTAGE_MIN,
45 .uV_step = RT5033_REGULATOR_BUCK_VOLTAGE_STEP,
46 .enable_reg = RT5033_REG_CTRL,
47 .enable_mask = RT5033_CTRL_EN_BUCK_MASK,
48 .vsel_reg = RT5033_REG_BUCK_CTRL,
49 .vsel_mask = RT5033_BUCK_CTRL_MASK,
50 },
51 [RT5033_LDO] = {
52 .name = "LDO",
53 .id = RT5033_LDO,
54 .ops = &rt5033_buck_ops,
55 .type = REGULATOR_VOLTAGE,
56 .owner = THIS_MODULE,
57 .n_voltages = RT5033_REGULATOR_LDO_VOLTAGE_STEP_NUM,
58 .min_uV = RT5033_REGULATOR_LDO_VOLTAGE_MIN,
59 .uV_step = RT5033_REGULATOR_LDO_VOLTAGE_STEP,
60 .enable_reg = RT5033_REG_CTRL,
61 .enable_mask = RT5033_CTRL_EN_LDO_MASK,
62 .vsel_reg = RT5033_REG_LDO_CTRL,
63 .vsel_mask = RT5033_LDO_CTRL_MASK,
64 },
65 [RT5033_SAFE_LDO] = {
66 .name = "SAFE_LDO",
67 .id = RT5033_SAFE_LDO,
68 .ops = &rt5033_safe_ldo_ops,
69 .type = REGULATOR_VOLTAGE,
70 .owner = THIS_MODULE,
71 .n_voltages = 1,
72 .min_uV = RT5033_REGULATOR_SAFE_LDO_VOLTAGE,
73 .enable_reg = RT5033_REG_CTRL,
74 .enable_mask = RT5033_CTRL_EN_SAFE_LDO_MASK,
75 },
76};
77
78static int rt5033_regulator_probe(struct platform_device *pdev)
79{
80 struct rt5033_dev *rt5033 = dev_get_drvdata(pdev->dev.parent);
81 int ret, i;
82 struct regulator_config config = {};
83
84 config.dev = &pdev->dev;
85 config.driver_data = rt5033;
86
87 for (i = 0; i < ARRAY_SIZE(rt5033_supported_regulators); i++) {
88 struct regulator_dev *regulator;
89
90 config.regmap = rt5033->regmap;
91
92 regulator = devm_regulator_register(&pdev->dev,
93 &rt5033_supported_regulators[i], &config);
94 if (IS_ERR(regulator)) {
95 ret = PTR_ERR(regulator);
96 dev_err(&pdev->dev,
97 "Regulator init failed %d: with error: %d\n",
98 i, ret);
99 return ret;
100 }
101 }
102
103 return 0;
104}
105
106static const struct platform_device_id rt5033_regulator_id[] = {
107 { "rt5033-regulator", },
108 { }
109};
110MODULE_DEVICE_TABLE(platform, rt5033_regulator_id);
111
112static struct platform_driver rt5033_regulator_driver = {
113 .driver = {
114 .name = "rt5033-regulator",
115 },
116 .probe = rt5033_regulator_probe,
117 .id_table = rt5033_regulator_id,
118};
119module_platform_driver(rt5033_regulator_driver);
120
121MODULE_DESCRIPTION("Richtek RT5033 Regulator driver");
122MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
123MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-25 18:32:02 -0400