aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-mx5/mx51_babbage_pmic_mc13892.c
blob: 20ee301ac172acc8f8786b8d04a802629c41b48f (plain)
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
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
/*
 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/*
 * mx51-babbage-pmic-mc13892.c  --  i.MX51 Babbage Driver for Atlas MC13892 PMIC
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/err.h>
#include <linux/pmic_external.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/mc13892.h>
#include <mach/irqs.h>
#include <mach/hardware.h>
#include <linux/gpio.h>
#include <mach/iomux-mx51.h>

/*
 * Convenience conversion.
 * Here atm, maybe there is somewhere better for this.
 */
#define mV_to_uV(mV) (mV * 1000)
#define uV_to_mV(uV) (uV / 1000)
#define V_to_uV(V) (mV_to_uV(V * 1000))
#define uV_to_V(uV) (uV_to_mV(uV) / 1000)

/* CPU */
static struct regulator_consumer_supply sw1_consumers[] = {
	{
		.supply = "cpu_vcc",
	}
};

static struct regulator_consumer_supply vdig_consumers[] = {
	{
		/* sgtl5000 */
		.supply = "VDDA",
		.dev_name = "1-000a",
	},
};

static struct regulator_consumer_supply vvideo_consumers[] = {
	{
		/* sgtl5000 */
		.supply = "VDDIO",
		.dev_name = "1-000a",
	},
};

struct mc13892;

static struct regulator_init_data sw1_init = {
	.constraints = {
		.name = "SW1",
		.min_uV = mV_to_uV(600),
		.max_uV = mV_to_uV(1375),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
		.valid_modes_mask = 0,
		.always_on = 1,
		.boot_on = 1,
		.state_mem = {
			.uV = 850000,
			.mode = REGULATOR_MODE_NORMAL,
			.enabled = 1,
		},
	},
	.num_consumer_supplies = ARRAY_SIZE(sw1_consumers),
	.consumer_supplies = sw1_consumers,
};

static struct regulator_init_data sw2_init = {
	.constraints = {
		.name = "SW2",
		.min_uV = mV_to_uV(900),
		.max_uV = mV_to_uV(1850),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
		.always_on = 1,
		.boot_on = 1,
		.state_mem = {
			.uV = 950000,
			.mode = REGULATOR_MODE_NORMAL,
			.enabled = 1,
		},
	}
};

static struct regulator_init_data sw3_init = {
	.constraints = {
		.name = "SW3",
		.min_uV = mV_to_uV(1100),
		.max_uV = mV_to_uV(1850),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
		.always_on = 1,
		.boot_on = 1,
	}
};

static struct regulator_init_data sw4_init = {
	.constraints = {
		.name = "SW4",
		.min_uV = mV_to_uV(1100),
		.max_uV = mV_to_uV(1850),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
		.always_on = 1,
		.boot_on = 1,
	}
};

static struct regulator_init_data viohi_init = {
	.constraints = {
		.name = "VIOHI",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
		.always_on = 1,
		.boot_on = 1,
	}
};

static struct regulator_init_data vusb_init = {
	.constraints = {
		.name = "VUSB",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
		.boot_on = 1,
		.always_on = 1,
	}
};

static struct regulator_init_data swbst_init = {
	.constraints = {
		.name = "SWBST",
	}
};

static struct regulator_init_data vdig_init = {
	.constraints = {
		.name = "VDIG",
		.min_uV = mV_to_uV(1650),
		.max_uV = mV_to_uV(1650),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
		.boot_on = 1,
	},
	.num_consumer_supplies = ARRAY_SIZE(vdig_consumers),
	.consumer_supplies = vdig_consumers,
};

static struct regulator_init_data vpll_init = {
	.constraints = {
		.name = "VPLL",
		.min_uV = mV_to_uV(1050),
		.max_uV = mV_to_uV(1800),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
		.boot_on = 1,
		.always_on = 1,
	}
};

static struct regulator_init_data vusb2_init = {
	.constraints = {
		.name = "VUSB2",
		.min_uV = mV_to_uV(2400),
		.max_uV = mV_to_uV(2775),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
		.boot_on = 1,
		.always_on = 1,
	}
};

static struct regulator_init_data vvideo_init = {
	.constraints = {
		.name = "VVIDEO",
		.min_uV = mV_to_uV(2775),
		.max_uV = mV_to_uV(2775),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
		.apply_uV = 1,
	},
	.num_consumer_supplies = ARRAY_SIZE(vvideo_consumers),
	.consumer_supplies = vvideo_consumers,
};

static struct regulator_init_data vaudio_init = {
	.constraints = {
		.name = "VAUDIO",
		.min_uV = mV_to_uV(2300),
		.max_uV = mV_to_uV(3000),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
	}
};

static struct regulator_init_data vsd_init = {
	.constraints = {
		.name = "VSD",
		.min_uV = mV_to_uV(1800),
		.max_uV = mV_to_uV(3150),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
	}
};

static struct regulator_init_data vcam_init = {
	.constraints = {
		.name = "VCAM",
		.min_uV = mV_to_uV(2500),
		.max_uV = mV_to_uV(3000),
		.valid_ops_mask =
			REGULATOR_CHANGE_VOLTAGE | REGULATOR_CHANGE_MODE |
			REGULATOR_CHANGE_STATUS,
		.valid_modes_mask = REGULATOR_MODE_FAST | REGULATOR_MODE_NORMAL,
	}
};

static struct regulator_init_data vgen1_init = {
	.constraints = {
		.name = "VGEN1",
		.min_uV = mV_to_uV(1200),
		.max_uV = mV_to_uV(1200),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
	}
};

static struct regulator_init_data vgen2_init = {
	.constraints = {
		.name = "VGEN2",
		.min_uV = mV_to_uV(1200),
		.max_uV = mV_to_uV(3150),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
		.always_on = 1,
	}
};

static struct regulator_init_data vgen3_init = {
	.constraints = {
		.name = "VGEN3",
		.min_uV = mV_to_uV(1800),
		.max_uV = mV_to_uV(2900),
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
			REGULATOR_CHANGE_STATUS,
		.always_on = 1,
	}
};

static struct regulator_init_data gpo1_init = {
	.constraints = {
		.name = "GPO1",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	}
};

static struct regulator_init_data gpo2_init = {
	.constraints = {
		.name = "GPO2",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	}
};

static struct regulator_init_data gpo3_init = {
	.constraints = {
		.name = "GPO3",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	}
};

static struct regulator_init_data gpo4_init = {
	.constraints = {
		.name = "GPO4",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	}
};

static struct mc13xxx_regulator_init_data mx51_bbg_regulators[] = {
	{ .id = MC13892_SW1,		.init_data =  &sw1_init },
	{ .id = MC13892_SW2,		.init_data =  &sw2_init },
	{ .id = MC13892_SW3,		.init_data =  &sw3_init },
	{ .id = MC13892_SW4,		.init_data =  &sw4_init },
	{ .id = MC13892_SWBST,		.init_data =  &swbst_init },
	{ .id = MC13892_VIOHI,		.init_data =  &viohi_init },
	{ .id = MC13892_VPLL,		.init_data =  &vpll_init },
	{ .id = MC13892_VDIG,		.init_data =  &vdig_init },
	{ .id = MC13892_VSD,		.init_data =  &vsd_init },
	{ .id = MC13892_VUSB2,		.init_data =  &vusb2_init },
	{ .id = MC13892_VVIDEO,		.init_data =  &vvideo_init },
	{ .id = MC13892_VAUDIO,		.init_data =  &vaudio_init },
	{ .id = MC13892_VCAM,		.init_data =  &vcam_init },
	{ .id = MC13892_VGEN1,		.init_data =  &vgen1_init },
	{ .id = MC13892_VGEN2,		.init_data =  &vgen2_init },
	{ .id = MC13892_VGEN3,		.init_data =  &vgen3_init },
	{ .id = MC13892_VUSB,		.init_data =  &vusb_init },
	{ .id = MC13892_GPO1,		.init_data =  &gpo1_init },
	{ .id = MC13892_GPO2,		.init_data =  &gpo2_init },
	{ .id = MC13892_GPO3,		.init_data =  &gpo3_init },
	{ .id = MC13892_GPO4,		.init_data =  &gpo4_init },
};

static struct mc13xxx_platform_data mc13892_plat = {
	.flags = MC13XXX_USE_REGULATOR,
	.regulators = {
		.num_regulators = ARRAY_SIZE(mx51_bbg_regulators),
		.regulators = mx51_bbg_regulators,
	}
};

#define MC13892_SPI_IRQ		gpio_to_irq(8)
static struct spi_board_info __initdata mc13892_spi_device = {
	.modalias = "mc13892",
	.irq = MC13892_SPI_IRQ,
	.max_speed_hz = 6000000,	/* max spi SCK clock speed in HZ */
	.bus_num = 0,
	.chip_select = 0,
	.platform_data = &mc13892_plat,
};


int __init mx51_babbage_init_mc13892(void)
{
	return spi_register_board_info(&mc13892_spi_device, 1);
}