1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014 MediaTek Inc.
* Author: Flora Fu, MediaTek
*/
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/regmap.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mt6323/core.h>
#include <linux/mfd/mt6358/core.h>
#include <linux/mfd/mt6359/core.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6323/registers.h>
#include <linux/mfd/mt6358/registers.h>
#include <linux/mfd/mt6359/registers.h>
#include <linux/mfd/mt6397/registers.h>
#define MT6323_RTC_BASE 0x8000
#define MT6323_RTC_SIZE 0x40
#define MT6358_RTC_BASE 0x0588
#define MT6358_RTC_SIZE 0x3c
#define MT6397_RTC_BASE 0xe000
#define MT6397_RTC_SIZE 0x3e
#define MT6323_PWRC_BASE 0x8000
#define MT6323_PWRC_SIZE 0x40
static const struct resource mt6323_rtc_resources[] = {
DEFINE_RES_MEM(MT6323_RTC_BASE, MT6323_RTC_SIZE),
DEFINE_RES_IRQ(MT6323_IRQ_STATUS_RTC),
};
static const struct resource mt6358_rtc_resources[] = {
DEFINE_RES_MEM(MT6358_RTC_BASE, MT6358_RTC_SIZE),
DEFINE_RES_IRQ(MT6358_IRQ_RTC),
};
static const struct resource mt6397_rtc_resources[] = {
DEFINE_RES_MEM(MT6397_RTC_BASE, MT6397_RTC_SIZE),
DEFINE_RES_IRQ(MT6397_IRQ_RTC),
};
static const struct resource mt6358_keys_resources[] = {
DEFINE_RES_IRQ_NAMED(MT6358_IRQ_PWRKEY, "powerkey"),
DEFINE_RES_IRQ_NAMED(MT6358_IRQ_HOMEKEY, "homekey"),
DEFINE_RES_IRQ_NAMED(MT6358_IRQ_PWRKEY_R, "powerkey_r"),
DEFINE_RES_IRQ_NAMED(MT6358_IRQ_HOMEKEY_R, "homekey_r"),
};
static const struct resource mt6359_keys_resources[] = {
DEFINE_RES_IRQ_NAMED(MT6359_IRQ_PWRKEY, "powerkey"),
DEFINE_RES_IRQ_NAMED(MT6359_IRQ_HOMEKEY, "homekey"),
DEFINE_RES_IRQ_NAMED(MT6359_IRQ_PWRKEY_R, "powerkey_r"),
DEFINE_RES_IRQ_NAMED(MT6359_IRQ_HOMEKEY_R, "homekey_r"),
};
static const struct resource mt6323_keys_resources[] = {
DEFINE_RES_IRQ_NAMED(MT6323_IRQ_STATUS_PWRKEY, "powerkey"),
DEFINE_RES_IRQ_NAMED(MT6323_IRQ_STATUS_FCHRKEY, "homekey"),
};
static const struct resource mt6397_keys_resources[] = {
DEFINE_RES_IRQ_NAMED(MT6397_IRQ_PWRKEY, "powerkey"),
DEFINE_RES_IRQ_NAMED(MT6397_IRQ_HOMEKEY, "homekey"),
};
static const struct resource mt6323_pwrc_resources[] = {
DEFINE_RES_MEM(MT6323_PWRC_BASE, MT6323_PWRC_SIZE),
};
static const struct mfd_cell mt6323_devs[] = {
{
.name = "mt6323-rtc",
.num_resources = ARRAY_SIZE(mt6323_rtc_resources),
.resources = mt6323_rtc_resources,
.of_compatible = "mediatek,mt6323-rtc",
}, {
.name = "mt6323-regulator",
.of_compatible = "mediatek,mt6323-regulator"
}, {
.name = "mt6323-led",
.of_compatible = "mediatek,mt6323-led"
}, {
.name = "mtk-pmic-keys",
.num_resources = ARRAY_SIZE(mt6323_keys_resources),
.resources = mt6323_keys_resources,
.of_compatible = "mediatek,mt6323-keys"
}, {
.name = "mt6323-pwrc",
.num_resources = ARRAY_SIZE(mt6323_pwrc_resources),
.resources = mt6323_pwrc_resources,
.of_compatible = "mediatek,mt6323-pwrc"
},
};
static const struct mfd_cell mt6358_devs[] = {
{
.name = "mt6358-regulator",
.of_compatible = "mediatek,mt6358-regulator"
}, {
.name = "mt6358-rtc",
.num_resources = ARRAY_SIZE(mt6358_rtc_resources),
.resources = mt6358_rtc_resources,
.of_compatible = "mediatek,mt6358-rtc",
}, {
.name = "mt6358-sound",
.of_compatible = "mediatek,mt6358-sound"
}, {
.name = "mt6358-keys",
.num_resources = ARRAY_SIZE(mt6358_keys_resources),
.resources = mt6358_keys_resources,
.of_compatible = "mediatek,mt6358-keys"
},
};
static const struct mfd_cell mt6359_devs[] = {
{ .name = "mt6359-regulator", },
{
.name = "mt6359-rtc",
.num_resources = ARRAY_SIZE(mt6358_rtc_resources),
.resources = mt6358_rtc_resources,
.of_compatible = "mediatek,mt6358-rtc",
},
{ .name = "mt6359-sound", },
{
.name = "mtk-pmic-keys",
.num_resources = ARRAY_SIZE(mt6359_keys_resources),
.resources = mt6359_keys_resources,
.of_compatible = "mediatek,mt6359-keys"
},
};
static const struct mfd_cell mt6397_devs[] = {
{
.name = "mt6397-rtc",
.num_resources = ARRAY_SIZE(mt6397_rtc_resources),
.resources = mt6397_rtc_resources,
.of_compatible = "mediatek,mt6397-rtc",
}, {
.name = "mt6397-regulator",
.of_compatible = "mediatek,mt6397-regulator",
}, {
.name = "mt6397-codec",
.of_compatible = "mediatek,mt6397-codec",
}, {
.name = "mt6397-clk",
.of_compatible = "mediatek,mt6397-clk",
}, {
.name = "mt6397-pinctrl",
.of_compatible = "mediatek,mt6397-pinctrl",
}, {
.name = "mtk-pmic-keys",
.num_resources = ARRAY_SIZE(mt6397_keys_resources),
.resources = mt6397_keys_resources,
.of_compatible = "mediatek,mt6397-keys"
}
};
struct chip_data {
u32 cid_addr;
u32 cid_shift;
const struct mfd_cell *cells;
int cell_size;
int (*irq_init)(struct mt6397_chip *chip);
};
static const struct chip_data mt6323_core = {
.cid_addr = MT6323_CID,
.cid_shift = 0,
.cells = mt6323_devs,
.cell_size = ARRAY_SIZE(mt6323_devs),
.irq_init = mt6397_irq_init,
};
static const struct chip_data mt6358_core = {
.cid_addr = MT6358_SWCID,
.cid_shift = 8,
.cells = mt6358_devs,
.cell_size = ARRAY_SIZE(mt6358_devs),
.irq_init = mt6358_irq_init,
};
static const struct chip_data mt6359_core = {
.cid_addr = MT6359_SWCID,
.cid_shift = 8,
.cells = mt6359_devs,
.cell_size = ARRAY_SIZE(mt6359_devs),
.irq_init = mt6358_irq_init,
};
static const struct chip_data mt6397_core = {
.cid_addr = MT6397_CID,
.cid_shift = 0,
.cells = mt6397_devs,
.cell_size = ARRAY_SIZE(mt6397_devs),
.irq_init = mt6397_irq_init,
};
static int mt6397_probe(struct platform_device *pdev)
{
int ret;
unsigned int id = 0;
struct mt6397_chip *pmic;
const struct chip_data *pmic_core;
pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
pmic->dev = &pdev->dev;
/*
* mt6397 MFD is child device of soc pmic wrapper.
* Regmap is set from its parent.
*/
pmic->regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!pmic->regmap)
return -ENODEV;
pmic_core = of_device_get_match_data(&pdev->dev);
if (!pmic_core)
return -ENODEV;
ret = regmap_read(pmic->regmap, pmic_core->cid_addr, &id);
if (ret) {
dev_err(&pdev->dev, "Failed to read chip id: %d\n", ret);
return ret;
}
pmic->chip_id = (id >> pmic_core->cid_shift) & 0xff;
platform_set_drvdata(pdev, pmic);
pmic->irq = platform_get_irq(pdev, 0);
if (pmic->irq <= 0)
return pmic->irq;
ret = pmic_core->irq_init(pmic);
if (ret)
return ret;
ret = devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE,
pmic_core->cells, pmic_core->cell_size,
NULL, 0, pmic->irq_domain);
if (ret) {
irq_domain_remove(pmic->irq_domain);
dev_err(&pdev->dev, "failed to add child devices: %d\n", ret);
}
return ret;
}
static const struct of_device_id mt6397_of_match[] = {
{
.compatible = "mediatek,mt6323",
.data = &mt6323_core,
}, {
.compatible = "mediatek,mt6358",
.data = &mt6358_core,
}, {
.compatible = "mediatek,mt6359",
.data = &mt6359_core,
}, {
.compatible = "mediatek,mt6397",
.data = &mt6397_core,
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(of, mt6397_of_match);
static const struct platform_device_id mt6397_id[] = {
{ "mt6397", 0 },
{ },
};
MODULE_DEVICE_TABLE(platform, mt6397_id);
static struct platform_driver mt6397_driver = {
.probe = mt6397_probe,
.driver = {
.name = "mt6397",
.of_match_table = mt6397_of_match,
},
.id_table = mt6397_id,
};
module_platform_driver(mt6397_driver);
MODULE_AUTHOR("Flora Fu, MediaTek");
MODULE_DESCRIPTION("Driver for MediaTek MT6397 PMIC");
MODULE_LICENSE("GPL");
|
