GNU Linux-libre 5.19-rc6-gnu
[releases.git] / drivers / mfd / tps65912-core.c
1 /*
2  * Core functions for TI TPS65912x PMICs
3  *
4  * Copyright (C) 2015 Texas Instruments Incorporated - https://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
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
118 void tps65912_device_exit(struct tps65912 *tps)
119 {
120         regmap_del_irq_chip(tps->irq, tps->irq_data);
121 }
122 EXPORT_SYMBOL_GPL(tps65912_device_exit);
123
124 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
125 MODULE_DESCRIPTION("TPS65912x MFD Driver");
126 MODULE_LICENSE("GPL v2");