1/* da9063-i2c.c: Interrupt support for Dialog DA9063
2 *
3 * Copyright 2012 Dialog Semiconductor Ltd.
4 * Copyright 2013 Philipp Zabel, Pengutronix
5 *
6 * Author: Krystian Garbaciak, Dialog Semiconductor
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/module.h>
17#include <linux/i2c.h>
18#include <linux/regmap.h>
19#include <linux/delay.h>
20#include <linux/slab.h>
21#include <linux/err.h>
22
23#include <linux/mfd/core.h>
24#include <linux/mfd/da9063/core.h>
25#include <linux/mfd/da9063/pdata.h>
26#include <linux/mfd/da9063/registers.h>
27
28#include <linux/of.h>
29#include <linux/regulator/of_regulator.h>
30
31static const struct regmap_range da9063_ad_readable_ranges[] = {
32 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_AD_REG_SECOND_D),
33 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
34 regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
35 regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_AD_REG_GP_ID_19),
36 regmap_reg_range(DA9063_REG_CHIP_ID, DA9063_REG_CHIP_VARIANT),
37};
38
39static const struct regmap_range da9063_ad_writeable_ranges[] = {
40 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
41 regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
42 regmap_reg_range(DA9063_REG_COUNT_S, DA9063_AD_REG_ALARM_Y),
43 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
44 regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
45 regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_AD_REG_MON_REG_4),
46 regmap_reg_range(DA9063_AD_REG_GP_ID_0, DA9063_AD_REG_GP_ID_19),
47};
48
49static const struct regmap_range da9063_ad_volatile_ranges[] = {
50 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
51 regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
52 regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
53 regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
54 regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
55 regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_AD_REG_SECOND_D),
56 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
57 regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
58 regmap_reg_range(DA9063_AD_REG_MON_REG_5, DA9063_AD_REG_MON_REG_6),
59};
60
61static const struct regmap_access_table da9063_ad_readable_table = {
62 .yes_ranges = da9063_ad_readable_ranges,
63 .n_yes_ranges = ARRAY_SIZE(da9063_ad_readable_ranges),
64};
65
66static const struct regmap_access_table da9063_ad_writeable_table = {
67 .yes_ranges = da9063_ad_writeable_ranges,
68 .n_yes_ranges = ARRAY_SIZE(da9063_ad_writeable_ranges),
69};
70
71static const struct regmap_access_table da9063_ad_volatile_table = {
72 .yes_ranges = da9063_ad_volatile_ranges,
73 .n_yes_ranges = ARRAY_SIZE(da9063_ad_volatile_ranges),
74};
75
76static const struct regmap_range da9063_bb_readable_ranges[] = {
77 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_BB_REG_SECOND_D),
78 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
79 regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
80 regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_19),
81 regmap_reg_range(DA9063_REG_CHIP_ID, DA9063_REG_CHIP_VARIANT),
82};
83
84static const struct regmap_range da9063_bb_writeable_ranges[] = {
85 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
86 regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
87 regmap_reg_range(DA9063_REG_COUNT_S, DA9063_BB_REG_ALARM_Y),
88 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
89 regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
90 regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
91 regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_19),
92};
93
94static const struct regmap_range da9063_bb_volatile_ranges[] = {
95 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
96 regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
97 regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
98 regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
99 regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
100 regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_BB_REG_SECOND_D),
101 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
102 regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
103 regmap_reg_range(DA9063_BB_REG_MON_REG_5, DA9063_BB_REG_MON_REG_6),
104};
105
106static const struct regmap_access_table da9063_bb_readable_table = {
107 .yes_ranges = da9063_bb_readable_ranges,
108 .n_yes_ranges = ARRAY_SIZE(da9063_bb_readable_ranges),
109};
110
111static const struct regmap_access_table da9063_bb_writeable_table = {
112 .yes_ranges = da9063_bb_writeable_ranges,
113 .n_yes_ranges = ARRAY_SIZE(da9063_bb_writeable_ranges),
114};
115
116static const struct regmap_access_table da9063_bb_volatile_table = {
117 .yes_ranges = da9063_bb_volatile_ranges,
118 .n_yes_ranges = ARRAY_SIZE(da9063_bb_volatile_ranges),
119};
120
121static const struct regmap_range da9063l_bb_readable_ranges[] = {
122 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_MON_A10_RES),
123 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
124 regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
125 regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_19),
126 regmap_reg_range(DA9063_REG_CHIP_ID, DA9063_REG_CHIP_VARIANT),
127};
128
129static const struct regmap_range da9063l_bb_writeable_ranges[] = {
130 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
131 regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
132 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
133 regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
134 regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
135 regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_19),
136};
137
138static const struct regmap_range da9063l_bb_volatile_ranges[] = {
139 regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
140 regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
141 regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
142 regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
143 regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
144 regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_REG_MON_A10_RES),
145 regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
146 regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
147 regmap_reg_range(DA9063_BB_REG_MON_REG_5, DA9063_BB_REG_MON_REG_6),
148};
149
150static const struct regmap_access_table da9063l_bb_readable_table = {
151 .yes_ranges = da9063l_bb_readable_ranges,
152 .n_yes_ranges = ARRAY_SIZE(da9063l_bb_readable_ranges),
153};
154
155static const struct regmap_access_table da9063l_bb_writeable_table = {
156 .yes_ranges = da9063l_bb_writeable_ranges,
157 .n_yes_ranges = ARRAY_SIZE(da9063l_bb_writeable_ranges),
158};
159
160static const struct regmap_access_table da9063l_bb_volatile_table = {
161 .yes_ranges = da9063l_bb_volatile_ranges,
162 .n_yes_ranges = ARRAY_SIZE(da9063l_bb_volatile_ranges),
163};
164
165static const struct regmap_range_cfg da9063_range_cfg[] = {
166 {
167 .range_min = DA9063_REG_PAGE_CON,
168 .range_max = DA9063_REG_CHIP_VARIANT,
169 .selector_reg = DA9063_REG_PAGE_CON,
170 .selector_mask = 1 << DA9063_I2C_PAGE_SEL_SHIFT,
171 .selector_shift = DA9063_I2C_PAGE_SEL_SHIFT,
172 .window_start = 0,
173 .window_len = 256,
174 }
175};
176
177static struct regmap_config da9063_regmap_config = {
178 .reg_bits = 8,
179 .val_bits = 8,
180 .ranges = da9063_range_cfg,
181 .num_ranges = ARRAY_SIZE(da9063_range_cfg),
182 .max_register = DA9063_REG_CHIP_VARIANT,
183
184 .cache_type = REGCACHE_RBTREE,
185};
186
187static const struct of_device_id da9063_dt_ids[] = {
188 { .compatible = "dlg,da9063", },
189 { .compatible = "dlg,da9063l", },
190 { }
191};
192MODULE_DEVICE_TABLE(of, da9063_dt_ids);
193static int da9063_i2c_probe(struct i2c_client *i2c,
194 const struct i2c_device_id *id)
195{
196 struct da9063 *da9063;
197 int ret;
198
199 da9063 = devm_kzalloc(&i2c->dev, sizeof(struct da9063), GFP_KERNEL);
200 if (da9063 == NULL)
201 return -ENOMEM;
202
203 i2c_set_clientdata(i2c, da9063);
204 da9063->dev = &i2c->dev;
205 da9063->chip_irq = i2c->irq;
206 da9063->type = id->driver_data;
207
208 if (da9063->variant_code == PMIC_DA9063_AD) {
209 da9063_regmap_config.rd_table = &da9063_ad_readable_table;
210 da9063_regmap_config.wr_table = &da9063_ad_writeable_table;
211 da9063_regmap_config.volatile_table = &da9063_ad_volatile_table;
212 } else if (da9063->type == PMIC_TYPE_DA9063L) {
213 da9063_regmap_config.rd_table = &da9063l_bb_readable_table;
214 da9063_regmap_config.wr_table = &da9063l_bb_writeable_table;
215 da9063_regmap_config.volatile_table = &da9063l_bb_volatile_table;
216 } else {
217 da9063_regmap_config.rd_table = &da9063_bb_readable_table;
218 da9063_regmap_config.wr_table = &da9063_bb_writeable_table;
219 da9063_regmap_config.volatile_table = &da9063_bb_volatile_table;
220 }
221
222 da9063->regmap = devm_regmap_init_i2c(i2c, &da9063_regmap_config);
223 if (IS_ERR(da9063->regmap)) {
224 ret = PTR_ERR(da9063->regmap);
225 dev_err(da9063->dev, "Failed to allocate register map: %d\n",
226 ret);
227 return ret;
228 }
229
230 return da9063_device_init(da9063, i2c->irq);
231}
232
233static const struct i2c_device_id da9063_i2c_id[] = {
234 { "da9063", PMIC_TYPE_DA9063 },
235 { "da9063l", PMIC_TYPE_DA9063L },
236 {},
237};
238MODULE_DEVICE_TABLE(i2c, da9063_i2c_id);
239
240static struct i2c_driver da9063_i2c_driver = {
241 .driver = {
242 .name = "da9063",
243 .of_match_table = of_match_ptr(da9063_dt_ids),
244 },
245 .probe = da9063_i2c_probe,
246 .id_table = da9063_i2c_id,
247};
248
249module_i2c_driver(da9063_i2c_driver);
250