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796f5692 AD |
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 | ||
054814b8 AB |
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 | ||
796f5692 AD |
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 | 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"); |