1 /*
2 * Core functions for TI TPS65912x PMICs
3 *
4 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
5 * Andrew F. Davis <afd@ti.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
12 * kind, whether expressed or implied; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License version 2 for more details.
15 *
16 * Based on the TPS65218 driver and the previous TPS65912 driver by
17 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
18 */
19
20 #include <linux/interrupt.h>
21 #include <linux/mfd/core.h>
22 #include <linux/module.h>
23
24 #include <linux/mfd/tps65912.h>
25
26 static const struct mfd_cell tps65912_cells[] = {
27 { .name = "tps65912-regulator", },
28 { .name = "tps65912-gpio", },
29 };
30
31 static const struct regmap_irq tps65912_irqs[] = {
32 /* INT_STS IRQs */
33 REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_F, 0, TPS65912_INT_STS_PWRHOLD_F),
34 REGMAP_IRQ_REG(TPS65912_IRQ_VMON, 0, TPS65912_INT_STS_VMON),
35 REGMAP_IRQ_REG(TPS65912_IRQ_PWRON, 0, TPS65912_INT_STS_PWRON),
36 REGMAP_IRQ_REG(TPS65912_IRQ_PWRON_LP, 0, TPS65912_INT_STS_PWRON_LP),
37 REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_R, 0, TPS65912_INT_STS_PWRHOLD_R),
38 REGMAP_IRQ_REG(TPS65912_IRQ_HOTDIE, 0, TPS65912_INT_STS_HOTDIE),
39 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_R, 0, TPS65912_INT_STS_GPIO1_R),
40 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_F, 0, TPS65912_INT_STS_GPIO1_F),
41 /* INT_STS2 IRQs */
42 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_R, 1, TPS65912_INT_STS2_GPIO2_R),
43 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_F, 1, TPS65912_INT_STS2_GPIO2_F),
44 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_R, 1, TPS65912_INT_STS2_GPIO3_R),
45 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_F, 1, TPS65912_INT_STS2_GPIO3_F),
46 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_R, 1, TPS65912_INT_STS2_GPIO4_R),
47 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_F, 1, TPS65912_INT_STS2_GPIO4_F),
48 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_R, 1, TPS65912_INT_STS2_GPIO5_R),
49 REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_F, 1, TPS65912_INT_STS2_GPIO5_F),
50 /* INT_STS3 IRQs */
51 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC1, 2, TPS65912_INT_STS3_PGOOD_DCDC1),
52 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC2, 2, TPS65912_INT_STS3_PGOOD_DCDC2),
53 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC3, 2, TPS65912_INT_STS3_PGOOD_DCDC3),
54 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC4, 2, TPS65912_INT_STS3_PGOOD_DCDC4),
55 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO1, 2, TPS65912_INT_STS3_PGOOD_LDO1),
56 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO2, 2, TPS65912_INT_STS3_PGOOD_LDO2),
57 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO3, 2, TPS65912_INT_STS3_PGOOD_LDO3),
58 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO4, 2, TPS65912_INT_STS3_PGOOD_LDO4),
59 /* INT_STS4 IRQs */
60 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO5, 3, TPS65912_INT_STS4_PGOOD_LDO5),
61 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO6, 3, TPS65912_INT_STS4_PGOOD_LDO6),
62 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO7, 3, TPS65912_INT_STS4_PGOOD_LDO7),
63 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO8, 3, TPS65912_INT_STS4_PGOOD_LDO8),
64 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO9, 3, TPS65912_INT_STS4_PGOOD_LDO9),
65 REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO10, 3, TPS65912_INT_STS4_PGOOD_LDO10),
66 };
67
68 static struct regmap_irq_chip tps65912_irq_chip = {
69 .name = "tps65912",
70 .irqs = tps65912_irqs,
71 .num_irqs = ARRAY_SIZE(tps65912_irqs),
72 .num_regs = 4,
73 .irq_reg_stride = 2,
74 .mask_base = TPS65912_INT_MSK,
75 .status_base = TPS65912_INT_STS,
76 .ack_base = TPS65912_INT_STS,
77 .init_ack_masked = true,
78 };
79
80 static const struct regmap_range tps65912_yes_ranges[] = {
81 regmap_reg_range(TPS65912_INT_STS, TPS65912_GPIO5),
82 };
83
84 static const struct regmap_access_table tps65912_volatile_table = {
85 .yes_ranges = tps65912_yes_ranges,
86 .n_yes_ranges = ARRAY_SIZE(tps65912_yes_ranges),
87 };
88
89 const struct regmap_config tps65912_regmap_config = {
90 .reg_bits = 8,
91 .val_bits = 8,
92 .cache_type = REGCACHE_RBTREE,
93 .volatile_table = &tps65912_volatile_table,
94 };
95 EXPORT_SYMBOL_GPL(tps65912_regmap_config);
96
tps65912_device_init(struct tps65912 * tps)97 int tps65912_device_init(struct tps65912 *tps)
98 {
99 int ret;
100
101 ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
102 &tps65912_irq_chip, &tps->irq_data);
103 if (ret)
104 return ret;
105
106 ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,
107 ARRAY_SIZE(tps65912_cells), NULL, 0,
108 regmap_irq_get_domain(tps->irq_data));
109 if (ret) {
110 regmap_del_irq_chip(tps->irq, tps->irq_data);
111 return ret;
112 }
113
114 return 0;
115 }
116 EXPORT_SYMBOL_GPL(tps65912_device_init);
117
tps65912_device_exit(struct tps65912 * tps)118 int tps65912_device_exit(struct tps65912 *tps)
119 {
120 regmap_del_irq_chip(tps->irq, tps->irq_data);
121
122 return 0;
123 }
124 EXPORT_SYMBOL_GPL(tps65912_device_exit);
125
126 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
127 MODULE_DESCRIPTION("TPS65912x MFD Driver");
128 MODULE_LICENSE("GPL v2");
129
