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");
119