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(map: tps->regmap, irq: tps->irq, IRQF_ONESHOT, irq_base: 0,
94 chip: &tps65912_irq_chip, data: &tps->irq_data);
95 if (ret)
96 return ret;
97
98 ret = mfd_add_devices(parent: tps->dev, PLATFORM_DEVID_AUTO, cells: tps65912_cells,
99 ARRAY_SIZE(tps65912_cells), NULL, irq_base: 0,
100 irq_domain: regmap_irq_get_domain(data: tps->irq_data));
101 if (ret) {
102 regmap_del_irq_chip(irq: tps->irq, data: 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(irq: tps->irq, data: 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");
119

source code of linux/drivers/mfd/tps65912-core.c