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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Core functions for TI TPS65912x PMICs
4 *
5 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
6 * Andrew F. Davis <afd@ti.com>
7 *
8 * Based on the TPS65218 driver and the previous TPS65912 driver by
9 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
10 */
11
12#include <linux/interrupt.h>
13#include <linux/mfd/core.h>
14#include <linux/module.h>
15
16#include <linux/mfd/tps65912.h>
17
18static const struct mfd_cell tps65912_cells[] = {
19 { .name = "tps65912-regulator", },
20 { .name = "tps65912-gpio", },
21};
22
23static const struct regmap_irq tps65912_irqs[] = {
24 /* INT_STS IRQs */
25 REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_F, 0, TPS65912_INT_STS_PWRHOLD_F),
26 REGMAP_IRQ_REG(TPS65912_IRQ_VMON, 0, TPS65912_INT_STS_VMON),
27 REGMAP_IRQ_REG(TPS65912_IRQ_PWRON, 0, TPS65912_INT_STS_PWRON),
28 REGMAP_IRQ_REG(TPS65912_IRQ_PWRON_LP, 0, TPS65912_INT_STS_PWRON_LP),
29 REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_R, 0, TPS65912_INT_STS_PWRHOLD_R),
30 REGMAP_IRQ_REG(TPS65912_IRQ_HOTDIE, 0, TPS65912_INT_STS_HOTDIE),
31 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_R, 0, TPS65912_INT_STS_GPIO1_R),
32 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_F, 0, TPS65912_INT_STS_GPIO1_F),
33 /* INT_STS2 IRQs */
34 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_R, 1, TPS65912_INT_STS2_GPIO2_R),
35 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_F, 1, TPS65912_INT_STS2_GPIO2_F),
36 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_R, 1, TPS65912_INT_STS2_GPIO3_R),
37 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_F, 1, TPS65912_INT_STS2_GPIO3_F),
38 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_R, 1, TPS65912_INT_STS2_GPIO4_R),
39 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_F, 1, TPS65912_INT_STS2_GPIO4_F),
40 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_R, 1, TPS65912_INT_STS2_GPIO5_R),
41 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_F, 1, TPS65912_INT_STS2_GPIO5_F),
42 /* INT_STS3 IRQs */
43 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC1, 2, TPS65912_INT_STS3_PGOOD_DCDC1),
44 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC2, 2, TPS65912_INT_STS3_PGOOD_DCDC2),
45 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC3, 2, TPS65912_INT_STS3_PGOOD_DCDC3),
46 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC4, 2, TPS65912_INT_STS3_PGOOD_DCDC4),
47 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO1, 2, TPS65912_INT_STS3_PGOOD_LDO1),
48 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO2, 2, TPS65912_INT_STS3_PGOOD_LDO2),
49 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO3, 2, TPS65912_INT_STS3_PGOOD_LDO3),
50 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO4, 2, TPS65912_INT_STS3_PGOOD_LDO4),
51 /* INT_STS4 IRQs */
52 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO5, 3, TPS65912_INT_STS4_PGOOD_LDO5),
53 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO6, 3, TPS65912_INT_STS4_PGOOD_LDO6),
54 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO7, 3, TPS65912_INT_STS4_PGOOD_LDO7),
55 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO8, 3, TPS65912_INT_STS4_PGOOD_LDO8),
56 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO9, 3, TPS65912_INT_STS4_PGOOD_LDO9),
57 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO10, 3, TPS65912_INT_STS4_PGOOD_LDO10),
58};
59
60static struct regmap_irq_chip tps65912_irq_chip = {
61 .name = "tps65912",
62 .irqs = tps65912_irqs,
63 .num_irqs = ARRAY_SIZE(tps65912_irqs),
64 .num_regs = 4,
65 .irq_reg_stride = 2,
66 .mask_base = TPS65912_INT_MSK,
67 .status_base = TPS65912_INT_STS,
68 .ack_base = TPS65912_INT_STS,
69 .init_ack_masked = true,
70};
71
72static const struct regmap_range tps65912_yes_ranges[] = {
73 regmap_reg_range(TPS65912_INT_STS, TPS65912_GPIO5),
74};
75
76static const struct regmap_access_table tps65912_volatile_table = {
77 .yes_ranges = tps65912_yes_ranges,
78 .n_yes_ranges = ARRAY_SIZE(tps65912_yes_ranges),
79};
80
81const struct regmap_config tps65912_regmap_config = {
82 .reg_bits = 8,
83 .val_bits = 8,
84 .cache_type = REGCACHE_MAPLE,
85 .volatile_table = &tps65912_volatile_table,
86};
87EXPORT_SYMBOL_GPL(tps65912_regmap_config);
88
89int tps65912_device_init(struct tps65912 *tps)
90{
91 int ret;
92
93 ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
94 &tps65912_irq_chip, &tps->irq_data);
95 if (ret)
96 return ret;
97
98 ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,
99 ARRAY_SIZE(tps65912_cells), NULL, 0,
100 regmap_irq_get_domain(tps->irq_data));
101 if (ret) {
102 regmap_del_irq_chip(tps->irq, tps->irq_data);
103 return ret;
104 }
105
106 return 0;
107}
108EXPORT_SYMBOL_GPL(tps65912_device_init);
109
110void tps65912_device_exit(struct tps65912 *tps)
111{
112 regmap_del_irq_chip(tps->irq, tps->irq_data);
113}
114EXPORT_SYMBOL_GPL(tps65912_device_exit);
115
116MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
117MODULE_DESCRIPTION("TPS65912x MFD Driver");
118MODULE_LICENSE("GPL v2");
1/*
2 * tps65912-core.c -- TI TPS65912x
3 *
4 * Copyright 2011 Texas Instruments Inc.
5 *
6 * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This driver is based on wm8350 implementation.
14 */
15
16#include <linux/module.h>
17#include <linux/moduleparam.h>
18#include <linux/slab.h>
19#include <linux/gpio.h>
20#include <linux/mfd/core.h>
21#include <linux/mfd/tps65912.h>
22
23static const struct mfd_cell tps65912s[] = {
24 {
25 .name = "tps65912-pmic",
26 },
27};
28
29int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
30{
31 u8 data;
32 int err;
33
34 mutex_lock(&tps65912->io_mutex);
35
36 err = tps65912->read(tps65912, reg, 1, &data);
37 if (err) {
38 dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
39 goto out;
40 }
41
42 data |= mask;
43 err = tps65912->write(tps65912, reg, 1, &data);
44 if (err)
45 dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
46
47out:
48 mutex_unlock(&tps65912->io_mutex);
49 return err;
50}
51EXPORT_SYMBOL_GPL(tps65912_set_bits);
52
53int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
54{
55 u8 data;
56 int err;
57
58 mutex_lock(&tps65912->io_mutex);
59 err = tps65912->read(tps65912, reg, 1, &data);
60 if (err) {
61 dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
62 goto out;
63 }
64
65 data &= ~mask;
66 err = tps65912->write(tps65912, reg, 1, &data);
67 if (err)
68 dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
69
70out:
71 mutex_unlock(&tps65912->io_mutex);
72 return err;
73}
74EXPORT_SYMBOL_GPL(tps65912_clear_bits);
75
76static inline int tps65912_read(struct tps65912 *tps65912, u8 reg)
77{
78 u8 val;
79 int err;
80
81 err = tps65912->read(tps65912, reg, 1, &val);
82 if (err < 0)
83 return err;
84
85 return val;
86}
87
88static inline int tps65912_write(struct tps65912 *tps65912, u8 reg, u8 val)
89{
90 return tps65912->write(tps65912, reg, 1, &val);
91}
92
93int tps65912_reg_read(struct tps65912 *tps65912, u8 reg)
94{
95 int data;
96
97 mutex_lock(&tps65912->io_mutex);
98
99 data = tps65912_read(tps65912, reg);
100 if (data < 0)
101 dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
102
103 mutex_unlock(&tps65912->io_mutex);
104 return data;
105}
106EXPORT_SYMBOL_GPL(tps65912_reg_read);
107
108int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val)
109{
110 int err;
111
112 mutex_lock(&tps65912->io_mutex);
113
114 err = tps65912_write(tps65912, reg, val);
115 if (err < 0)
116 dev_err(tps65912->dev, "Write for reg 0x%x failed\n", reg);
117
118 mutex_unlock(&tps65912->io_mutex);
119 return err;
120}
121EXPORT_SYMBOL_GPL(tps65912_reg_write);
122
123int tps65912_device_init(struct tps65912 *tps65912)
124{
125 struct tps65912_board *pmic_plat_data = dev_get_platdata(tps65912->dev);
126 struct tps65912_platform_data *init_data;
127 int ret, dcdc_avs, value;
128
129 init_data = kzalloc(sizeof(struct tps65912_platform_data), GFP_KERNEL);
130 if (init_data == NULL)
131 return -ENOMEM;
132
133 mutex_init(&tps65912->io_mutex);
134 dev_set_drvdata(tps65912->dev, tps65912);
135
136 dcdc_avs = (pmic_plat_data->is_dcdc1_avs << 0 |
137 pmic_plat_data->is_dcdc2_avs << 1 |
138 pmic_plat_data->is_dcdc3_avs << 2 |
139 pmic_plat_data->is_dcdc4_avs << 3);
140 if (dcdc_avs) {
141 tps65912->read(tps65912, TPS65912_I2C_SPI_CFG, 1, &value);
142 dcdc_avs |= value;
143 tps65912->write(tps65912, TPS65912_I2C_SPI_CFG, 1, &dcdc_avs);
144 }
145
146 ret = mfd_add_devices(tps65912->dev, -1,
147 tps65912s, ARRAY_SIZE(tps65912s),
148 NULL, 0, NULL);
149 if (ret < 0)
150 goto err;
151
152 init_data->irq = pmic_plat_data->irq;
153 init_data->irq_base = pmic_plat_data->irq_base;
154 ret = tps65912_irq_init(tps65912, init_data->irq, init_data);
155 if (ret < 0)
156 goto err;
157
158 kfree(init_data);
159 return ret;
160
161err:
162 kfree(init_data);
163 mfd_remove_devices(tps65912->dev);
164 return ret;
165}
166
167void tps65912_device_exit(struct tps65912 *tps65912)
168{
169 mfd_remove_devices(tps65912->dev);
170 tps65912_irq_exit(tps65912);
171}
172
173MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>");
174MODULE_DESCRIPTION("TPS65912x chip family multi-function driver");
175MODULE_LICENSE("GPL");