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17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/slab.h>
21#include <linux/device.h>
22#include <linux/delay.h>
23#include <linux/interrupt.h>
24#include <linux/mutex.h>
25#include <linux/mfd/core.h>
26#include <linux/regmap.h>
27
28#include <linux/mfd/da9063/core.h>
29#include <linux/mfd/da9063/pdata.h>
30#include <linux/mfd/da9063/registers.h>
31
32#include <linux/proc_fs.h>
33#include <linux/kthread.h>
34#include <linux/uaccess.h>
35
36
37static struct resource da9063_regulators_resources[] = {
38 {
39 .name = "LDO_LIM",
40 .start = DA9063_IRQ_LDO_LIM,
41 .end = DA9063_IRQ_LDO_LIM,
42 .flags = IORESOURCE_IRQ,
43 },
44};
45
46static struct resource da9063_rtc_resources[] = {
47 {
48 .name = "ALARM",
49 .start = DA9063_IRQ_ALARM,
50 .end = DA9063_IRQ_ALARM,
51 .flags = IORESOURCE_IRQ,
52 },
53 {
54 .name = "TICK",
55 .start = DA9063_IRQ_TICK,
56 .end = DA9063_IRQ_TICK,
57 .flags = IORESOURCE_IRQ,
58 }
59};
60
61static struct resource da9063_onkey_resources[] = {
62 {
63 .start = DA9063_IRQ_ONKEY,
64 .end = DA9063_IRQ_ONKEY,
65 .flags = IORESOURCE_IRQ,
66 },
67};
68
69static struct resource da9063_hwmon_resources[] = {
70 {
71 .start = DA9063_IRQ_ADC_RDY,
72 .end = DA9063_IRQ_ADC_RDY,
73 .flags = IORESOURCE_IRQ,
74 },
75};
76
77
78static const struct mfd_cell da9063_devs[] = {
79 {
80 .name = DA9063_DRVNAME_REGULATORS,
81 .num_resources = ARRAY_SIZE(da9063_regulators_resources),
82 .resources = da9063_regulators_resources,
83 },
84 {
85 .name = DA9063_DRVNAME_LEDS,
86 },
87 {
88 .name = DA9063_DRVNAME_WATCHDOG,
89 },
90 {
91 .name = DA9063_DRVNAME_HWMON,
92 .num_resources = ARRAY_SIZE(da9063_hwmon_resources),
93 .resources = da9063_hwmon_resources,
94 },
95 {
96 .name = DA9063_DRVNAME_ONKEY,
97 .num_resources = ARRAY_SIZE(da9063_onkey_resources),
98 .resources = da9063_onkey_resources,
99 },
100 {
101 .name = DA9063_DRVNAME_RTC,
102 .num_resources = ARRAY_SIZE(da9063_rtc_resources),
103 .resources = da9063_rtc_resources,
104 },
105 {
106 .name = DA9063_DRVNAME_VIBRATION,
107 },
108};
109
110int da9063_device_init(struct da9063 *da9063, unsigned int irq)
111{
112 struct da9063_pdata *pdata = da9063->dev->platform_data;
113 int model, variant_id, variant_code;
114 int ret;
115
116 if (pdata) {
117 da9063->flags = pdata->flags;
118 da9063->irq_base = pdata->irq_base;
119 } else {
120 da9063->flags = 0;
121 da9063->irq_base = 0;
122 }
123 da9063->chip_irq = irq;
124
125 if (pdata && pdata->init != NULL) {
126 ret = pdata->init(da9063);
127 if (ret != 0) {
128 dev_err(da9063->dev,
129 "Platform initialization failed.\n");
130 return ret;
131 }
132 }
133
134 ret = regmap_read(da9063->regmap, DA9063_REG_CHIP_ID, &model);
135 if (ret < 0) {
136 dev_err(da9063->dev, "Cannot read chip model id.\n");
137 return -EIO;
138 }
139 if (model != PMIC_DA9063) {
140 dev_err(da9063->dev, "Invalid chip model id: 0x%02x\n", model);
141 return -ENODEV;
142 }
143
144 ret = regmap_read(da9063->regmap, DA9063_REG_CHIP_VARIANT, &variant_id);
145 if (ret < 0) {
146 dev_err(da9063->dev, "Cannot read chip variant id.\n");
147 return -EIO;
148 }
149
150 variant_code = variant_id >> DA9063_CHIP_VARIANT_SHIFT;
151
152 dev_info(da9063->dev,
153 "Device detected (chip-ID: 0x%02X, var-ID: 0x%02X)\n",
154 model, variant_id);
155
156 if (variant_code < PMIC_DA9063_BB && variant_code != PMIC_DA9063_AD) {
157 dev_err(da9063->dev,
158 "Cannot support variant code: 0x%02X\n", variant_code);
159 return -ENODEV;
160 }
161
162 da9063->model = model;
163 da9063->variant_code = variant_code;
164
165 ret = da9063_irq_init(da9063);
166 if (ret) {
167 dev_err(da9063->dev, "Cannot initialize interrupts.\n");
168 return ret;
169 }
170
171 ret = mfd_add_devices(da9063->dev, -1, da9063_devs,
172 ARRAY_SIZE(da9063_devs), NULL, da9063->irq_base,
173 NULL);
174 if (ret)
175 dev_err(da9063->dev, "Cannot add MFD cells\n");
176
177 return ret;
178}
179
180void da9063_device_exit(struct da9063 *da9063)
181{
182 mfd_remove_devices(da9063->dev);
183 da9063_irq_exit(da9063);
184}
185
186MODULE_DESCRIPTION("PMIC driver for Dialog DA9063");
187MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>, Michal Hajduk <michal.hajduk@diasemi.com>");
188MODULE_LICENSE("GPL");
189
