summaryrefslogtreecommitdiff
path: root/arch/arm/mach-tegra/board-colibri_t30-power.c
blob: aaf6128ebcc90373d258baf5ca211cd847ac09eb (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
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
/*
 * arch/arm/mach-tegra/board-colibri_t30-power.c
 *
 * Copyright (C) 2012-2016 Toradex, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307, USA
 */

#include <asm/mach-types.h>

#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/mfd/tps6591x.h>
#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/tps62360.h>
#include <linux/regulator/tps6591x-regulator.h>
#include <linux/resource.h>

#include <mach/edp.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include <mach/pinmux.h>

#include "board-colibri_t30.h"
#include "board.h"
#include "gpio-names.h"
#include "tegra3_tsensor.h"
#include "pm.h"
#include "wakeups.h"
#include "wakeups-t3.h"

#define PMC_CTRL		0x0
#define PMC_CTRL_INTR_LOW	(1 << 17)

/* SW1: +V1.35_VDDIO_DDR */
static struct regulator_consumer_supply tps6591x_vdd1_supply_0[] = {
	REGULATOR_SUPPLY("mem_vddio_ddr", NULL),
	REGULATOR_SUPPLY("t30_vddio_ddr", NULL),
};

/* SW2: unused */
static struct regulator_consumer_supply tps6591x_vdd2_supply_0[] = {
	REGULATOR_SUPPLY("unused_rail_vdd2", NULL),
};

/* SW CTRL: +V1.0_VDD_CPU */
static struct regulator_consumer_supply tps6591x_vddctrl_supply_0[] = {
	REGULATOR_SUPPLY("vdd_cpu_pmu", NULL),
	REGULATOR_SUPPLY("vdd_cpu", NULL),
//!=vddio_sys!
	REGULATOR_SUPPLY("vdd_sys", NULL),
};

/* SWIO: +V1.8 */
static struct regulator_consumer_supply tps6591x_vio_supply_0[] = {
	REGULATOR_SUPPLY("vdd_gen1v8", NULL),
	REGULATOR_SUPPLY("avdd_usb_pll", NULL),
	REGULATOR_SUPPLY("avdd_osc", NULL),
	REGULATOR_SUPPLY("vddio_sdmmc", "sdhci-tegra.3"),
	REGULATOR_SUPPLY("pwrdet_sdmmc4", NULL),
	REGULATOR_SUPPLY("vdd1v8_satelite", NULL),
	REGULATOR_SUPPLY("vddio_vi", NULL),
	REGULATOR_SUPPLY("pwrdet_vi", NULL),
	REGULATOR_SUPPLY("ldo1", NULL),
	REGULATOR_SUPPLY("ldo2", NULL),
	REGULATOR_SUPPLY("ldo6", NULL),
	REGULATOR_SUPPLY("ldo7", NULL),
	REGULATOR_SUPPLY("ldo8", NULL),
	REGULATOR_SUPPLY("vcore_audio", NULL),
	REGULATOR_SUPPLY("avcore_audio", NULL),
	REGULATOR_SUPPLY("vcore1_lpddr2", NULL),
	REGULATOR_SUPPLY("vcom_1v8", NULL),
	REGULATOR_SUPPLY("pmuio_1v8", NULL),
	REGULATOR_SUPPLY("avdd_ic_usb", NULL),
};

/* unused */
static struct regulator_consumer_supply tps6591x_ldo1_supply_0[] = {
	REGULATOR_SUPPLY("unused_rail_ldo1", NULL),
};

/* EN_+V3.3 switching via FET: +V3.3_AUDIO_AVDD_S, +V3.3 and +V1.8_VDD_LAN
   see also v3_3 fixed supply */
static struct regulator_consumer_supply tps6591x_ldo2_supply_0[] = {
	REGULATOR_SUPPLY("en_V3_3", NULL),
};

/* unused */
static struct regulator_consumer_supply tps6591x_ldo3_supply_0[] = {
	REGULATOR_SUPPLY("avdd_dsi_csi", NULL),
	REGULATOR_SUPPLY("pwrdet_mipi", NULL),
};

/* +V1.2_VDD_RTC */
static struct regulator_consumer_supply tps6591x_ldo4_supply_0[] = {
	REGULATOR_SUPPLY("vdd_rtc", NULL),
};

/* +V2.8_AVDD_VDAC */
//only required for analog RGB
static struct regulator_consumer_supply tps6591x_ldo5_supply_0[] = {
	REGULATOR_SUPPLY("avdd_vdac", NULL),
};

/* +V1.05_AVDD_PLLE */
static struct regulator_consumer_supply tps6591x_ldo6_supply_0[] = {
	REGULATOR_SUPPLY("avdd_plle", NULL),
};

/* +V1.2_AVDD_PLL */
static struct regulator_consumer_supply tps6591x_ldo7_supply_0[] = {
	REGULATOR_SUPPLY("avdd_plla_p_c_s", NULL),
	REGULATOR_SUPPLY("avdd_pllm", NULL),
	REGULATOR_SUPPLY("avdd_pllu_d", NULL),
	REGULATOR_SUPPLY("avdd_pllu_d2", NULL),
	REGULATOR_SUPPLY("avdd_pllx", NULL),
};

/* +V1.0_VDD_DDR_HS */
static struct regulator_consumer_supply tps6591x_ldo8_supply_0[] = {
	REGULATOR_SUPPLY("vdd_ddr_hs", NULL),
};

#define TPS_PDATA_INIT(_name, _sname, _minmv, _maxmv, _supply_reg, _always_on, \
	_boot_on, _apply_uv, _init_uV, _init_enable, _init_apply, _ectrl, _flags) \
	static struct tps6591x_regulator_platform_data pdata_##_name##_##_sname = \
	{								\
		.regulator = {						\
			.constraints = {				\
				.min_uV = (_minmv)*1000,		\
				.max_uV = (_maxmv)*1000,		\
				.valid_modes_mask = (REGULATOR_MODE_NORMAL |  \
						     REGULATOR_MODE_STANDBY), \
				.valid_ops_mask = (REGULATOR_CHANGE_MODE |    \
						   REGULATOR_CHANGE_STATUS |  \
						   REGULATOR_CHANGE_VOLTAGE), \
				.always_on = _always_on,		\
				.boot_on = _boot_on,			\
				.apply_uV = _apply_uv,			\
			},						\
			.num_consumer_supplies =			\
				ARRAY_SIZE(tps6591x_##_name##_supply_##_sname),	\
			.consumer_supplies = tps6591x_##_name##_supply_##_sname,	\
			.supply_regulator = _supply_reg,		\
		},							\
		.init_uV =  _init_uV * 1000,				\
		.init_enable = _init_enable,				\
		.init_apply = _init_apply,				\
		.ectrl = _ectrl,					\
		.flags = _flags,					\
	}

TPS_PDATA_INIT(vdd1, 0,         1350, 1350, 0, 1, 1, 0, -1, 0, 0, 0, 0);
TPS_PDATA_INIT(vdd2, 0,         1050, 1050, 0, 0, 1, 0, -1, 0, 0, EXT_CTRL_SLEEP_OFF, 0);
TPS_PDATA_INIT(vddctrl, 0,      800,  1300, 0, 1, 1, 0, -1, 0, 0, EXT_CTRL_EN1, 0);
TPS_PDATA_INIT(vio,  0,         1800, 1800, 0, 1, 1, 0, -1, 0, 0, 0, 0);

TPS_PDATA_INIT(ldo1, 0,         1000, 3300, tps6591x_rails(VIO), 0, 0, 0, -1, 0, 1, 0, 0);
/* Make sure EN_+V3.3 is always on! */
TPS_PDATA_INIT(ldo2, 0,         1200, 1200, tps6591x_rails(VIO), 1, 1, 1, -1, 0, 1, 0, 0);

TPS_PDATA_INIT(ldo3, 0,         1200, 1200, 0, 0, 0, 0, -1, 0, 0, 0, 0);
TPS_PDATA_INIT(ldo4, 0,         900,  1400, 0, 1, 0, 0, -1, 0, 0, 0, LDO_LOW_POWER_ON_SUSPEND);
TPS_PDATA_INIT(ldo5, 0,         2800, 2800, 0, 0, 0, 0, -1, 0, 0, 0, 0);
/* AVDD_PLLE should be 1.05V, but ldo_6 can not be adjusted in a 50mV granularity */
TPS_PDATA_INIT(ldo6, 0,         1000, 1100, tps6591x_rails(VIO), 0, 0, 1, -1, 0, 0, 0, 0);

TPS_PDATA_INIT(ldo7, 0,         1200, 1200, tps6591x_rails(VIO), 1, 1, 1, -1, 0, 0, EXT_CTRL_SLEEP_OFF, LDO_LOW_POWER_ON_SUSPEND);
TPS_PDATA_INIT(ldo8, 0,         1000, 1000, tps6591x_rails(VIO), 1, 0, 0, -1, 0, 0, EXT_CTRL_SLEEP_OFF, LDO_LOW_POWER_ON_SUSPEND);

#if defined(CONFIG_RTC_DRV_TPS6591x)
static struct tps6591x_rtc_platform_data rtc_data = {
	.irq = TPS6591X_IRQ_BASE + TPS6591X_INT_RTC_ALARM,
	.time = {
		.tm_year = 2000,
		.tm_mon = 0,
		.tm_mday = 1,
		.tm_hour = 0,
		.tm_min = 0,
		.tm_sec = 0,
	},
};

#define TPS_RTC_REG()					\
	{						\
		.id	= 0,				\
		.name	= "rtc_tps6591x",		\
		.platform_data = &rtc_data,		\
	}
#endif

#define TPS_REG(_id, _name, _sname)				\
	{							\
		.id	= TPS6591X_ID_##_id,			\
		.name	= "tps6591x-regulator",			\
		.platform_data	= &pdata_##_name##_##_sname,	\
	}

static struct tps6591x_subdev_info colibri_t30_tps_devs[] = {
	TPS_REG(VDD_1, vdd1, 0),
	TPS_REG(VDD_2, vdd2, 0),
	TPS_REG(VDDCTRL, vddctrl, 0),
	TPS_REG(VIO, vio, 0),
	TPS_REG(LDO_1, ldo1, 0),
	TPS_REG(LDO_2, ldo2, 0),
	TPS_REG(LDO_3, ldo3, 0),
	TPS_REG(LDO_4, ldo4, 0),
	TPS_REG(LDO_5, ldo5, 0),
	TPS_REG(LDO_6, ldo6, 0),
	TPS_REG(LDO_7, ldo7, 0),
	TPS_REG(LDO_8, ldo8, 0),
#if defined(CONFIG_RTC_DRV_TPS6591x)
	TPS_RTC_REG(),
#endif
};

#define TPS_GPIO_INIT_PDATA(gpio_nr, _init_apply, _sleep_en, _pulldn_en, _output_en, _output_val)	\
	[gpio_nr] = {					\
			.sleep_en	= _sleep_en,	\
			.pulldn_en	= _pulldn_en,	\
			.output_mode_en	= _output_en,	\
			.output_val	= _output_val,	\
			.init_apply	= _init_apply,	\
		     }
static struct tps6591x_gpio_init_data tps_gpio_pdata_colibri_t30[] =  {
	TPS_GPIO_INIT_PDATA(0, 0, 0, 0, 0, 0),
	TPS_GPIO_INIT_PDATA(1, 1, 0, 0, 1, 0), /* EN_CORE_DVFS_N */
	TPS_GPIO_INIT_PDATA(2, 1, 1, 0, 1, 1), /* EN_VDD_CORE */
	TPS_GPIO_INIT_PDATA(3, 0, 0, 0, 0, 0),
	TPS_GPIO_INIT_PDATA(4, 1, 0, 0, 0, 0), /* EN_VDD_FUSE# */
	TPS_GPIO_INIT_PDATA(5, 0, 0, 0, 0, 0),
	TPS_GPIO_INIT_PDATA(6, 1, 1, 0, 1, 0), /* EN_VDD_HDMI */
	TPS_GPIO_INIT_PDATA(7, 0, 0, 0, 0, 0),
	TPS_GPIO_INIT_PDATA(8, 0, 0, 0, 0, 0),
};

static struct tps6591x_sleep_keepon_data tps_slp_keepon = {
	.clkout32k_keepon = 1,
};

static struct tps6591x_platform_data tps_platform = {
	.irq_base	= TPS6591X_IRQ_BASE,
	.gpio_base	= TPS6591X_GPIO_BASE,
	.dev_slp_en	= true,
	.slp_keepon	= &tps_slp_keepon,
	.use_power_off	= true,
};

static struct i2c_board_info __initdata colibri_t30_regulators[] = {
	{
		I2C_BOARD_INFO("tps6591x", 0x2D),
//PWR_INT_IN wake18
		.irq		= INT_EXTERNAL_PMU,
		.platform_data	= &tps_platform,
	},
};

/* TPS62362 DC-DC converter
   SW: +V1.2_VDD_CORE
   Note: Colibri T30 V1.0 have TPS62360 with different voltage levels at startup */
static struct regulator_consumer_supply tps6236x_dcdc_supply[] = {
	REGULATOR_SUPPLY("vdd_core", NULL),
};

static struct tps62360_regulator_platform_data tps6236x_pdata = {
	.reg_init_data = {					\
		.constraints = {				\
			.min_uV =  900000,			\
			.max_uV = 1400000,			\
			.valid_modes_mask = (REGULATOR_MODE_NORMAL |  \
					     REGULATOR_MODE_STANDBY), \
			.valid_ops_mask = (REGULATOR_CHANGE_MODE |    \
					   REGULATOR_CHANGE_STATUS |  \
					   REGULATOR_CHANGE_VOLTAGE), \
			.always_on = 1,				\
			.boot_on =  1,				\
			.apply_uV = 0,				\
		},						\
		.num_consumer_supplies = ARRAY_SIZE(tps6236x_dcdc_supply), \
		.consumer_supplies = tps6236x_dcdc_supply,	\
		},						\
	.en_discharge = true,					\
	.vsel0_gpio = -1,					\
	.vsel1_gpio = -1,					\
	.vsel0_def_state = 1,					\
	.vsel1_def_state = 1,					\
};

static struct i2c_board_info __initdata tps6236x_boardinfo[] = {
	{
		I2C_BOARD_INFO("tps62360", 0x60),
		.platform_data	= &tps6236x_pdata,
	},
};

/* Macro for defining fixed regulator sub device data */
#define FIXED_SUPPLY(_name) "fixed_reg_"#_name
#define FIXED_REG_OD(_id, _var, _name, _in_supply, _always_on,		\
		_boot_on, _gpio_nr, _active_high, _boot_state,		\
		_millivolts, _od_state)					\
	static struct regulator_init_data ri_data_##_var =		\
	{								\
		.supply_regulator = _in_supply,				\
		.num_consumer_supplies =				\
			ARRAY_SIZE(fixed_reg_##_name##_supply),		\
		.consumer_supplies = fixed_reg_##_name##_supply,	\
		.constraints = {					\
			.valid_modes_mask = (REGULATOR_MODE_NORMAL),	\
			.valid_ops_mask = (REGULATOR_CHANGE_STATUS),	\
			.always_on = _always_on,			\
			.boot_on = _boot_on,				\
		},							\
	};								\
	static struct fixed_voltage_config fixed_reg_##_var##_pdata =	\
	{								\
		.supply_name = FIXED_SUPPLY(_name),			\
		.microvolts = _millivolts * 1000,			\
		.gpio = _gpio_nr,					\
		.enable_high = _active_high,				\
		.enabled_at_boot = _boot_state,				\
		.init_data = &ri_data_##_var,				\
		.gpio_is_open_drain = _od_state,			\
	};								\
	static struct platform_device fixed_reg_##_var##_dev = {	\
		.name   = "reg-fixed-voltage",				\
		.id     = _id,						\
		.dev    = {						\
			.platform_data = &fixed_reg_##_var##_pdata,	\
		},							\
	}

#define FIXED_REG(_id, _var, _name, _in_supply, _always_on, _boot_on,	\
		 _gpio_nr, _active_high, _boot_state, _millivolts)	\
	FIXED_REG_OD(_id, _var, _name, _in_supply, _always_on, _boot_on,  \
		_gpio_nr, _active_high, _boot_state, _millivolts, false)

#define ADD_FIXED_REG(_name)	(&fixed_reg_##_name##_dev)

/* PMU GP6: EN_VDD_HDMI switching via FET: +V1.8_AVDD_HDMI_PLL and +V3.3_AVDD_HDMI */
static struct regulator_consumer_supply fixed_reg_en_hdmi_supply[] = {
	REGULATOR_SUPPLY("avdd_hdmi", NULL),
	REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
//	REGULATOR_SUPPLY("vdd_3v3_hdmi_cec", NULL),
};

/* EN_VDD_HDMI */
FIXED_REG(0, en_hdmi, en_hdmi, NULL, 0, 0, TPS6591X_GPIO_6, true, 1, 1800);

/* +V3.3 is switched on by LDO2, As this can not be modeled we use a fixed
   regulator without enable, 3.3V must not be switched off anyway.
+V3.3:
VDD_DDR_RX
VDDIO_LCD_1
VDDIO_LCD_2
VDDIO_CAM
LM95245
VDDIO_SYS_01
VDDIO_SYS_02
VDDIO_BB
VDDIO_AUDIO
VDDIO_GMI_1
VDDIO_GMI_2
VDDIO_GMI_3
VDDIO_UART
VDDIO_SDMMC1
AVDD_USB
VDDIO_SDMMC3
74AVCAH164245
VDDIO_PEX_CTL
TPS65911 VDDIO
MT29F16G08
SGTL5000 VDDIO
STMPE811
AX88772B VCC3x
SDIN5D2-2G VCCx  */
static struct regulator_consumer_supply fixed_reg_v3_3_supply[] = {
	REGULATOR_SUPPLY("avdd_audio", NULL),
	REGULATOR_SUPPLY("avdd_usb", NULL),
	REGULATOR_SUPPLY("vddio_sd_slot", "sdhci-tegra.1"),
	REGULATOR_SUPPLY("vddio_sys", NULL),
	REGULATOR_SUPPLY("vddio_uart", NULL),
	REGULATOR_SUPPLY("pwrdet_uart", NULL),
	REGULATOR_SUPPLY("vddio_audio", NULL),
	REGULATOR_SUPPLY("pwrdet_audio", NULL),
	REGULATOR_SUPPLY("vddio_bb", NULL),
	REGULATOR_SUPPLY("pwrdet_bb", NULL),
	REGULATOR_SUPPLY("vddio_lcd_pmu", NULL),
	REGULATOR_SUPPLY("pwrdet_lcd", NULL),
	REGULATOR_SUPPLY("vddio_cam", NULL),
	REGULATOR_SUPPLY("pwrdet_cam", NULL),
	/* if this supply is defined, the sdhci driver tries
	 * to set it to 1.8V */
//	REGULATOR_SUPPLY("vddio_sdmmc", "sdhci-tegra.1"),
	REGULATOR_SUPPLY("pwrdet_sdmmc2", NULL),
	REGULATOR_SUPPLY("pwrdet_sdmmc1", NULL),
	REGULATOR_SUPPLY("pwrdet_sdmmc3", NULL),
	REGULATOR_SUPPLY("pwrdet_pex_ctl", NULL),
	REGULATOR_SUPPLY("pwrdet_nand", NULL),

	/* SGTL5000 */
	REGULATOR_SUPPLY("VDDA", "4-000a"),
	REGULATOR_SUPPLY("VDDIO", "4-000a"),
};

FIXED_REG(1, v3_3, v3_3, NULL, 1, 1, -1, true, 1, 3300);

/* Gpio switch regulator platform data */
static struct platform_device *fixed_reg_devs_colibri_t30[] = {
		ADD_FIXED_REG(en_hdmi),
		ADD_FIXED_REG(v3_3),
};

int __init colibri_t30_regulator_init(void)
{
	void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
	u32 pmc_ctrl;

	/* configure the power management controller to trigger PMU
	 * interrupts when low */
	pmc_ctrl = readl(pmc + PMC_CTRL);
	writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);

	/* The regulator details have complete constraints */
	regulator_has_full_constraints();

	tps_platform.num_subdevs = ARRAY_SIZE(colibri_t30_tps_devs);
	tps_platform.subdevs = colibri_t30_tps_devs;

	tps_platform.gpio_init_data = tps_gpio_pdata_colibri_t30;
	tps_platform.num_gpioinit_data = ARRAY_SIZE(tps_gpio_pdata_colibri_t30);

	i2c_register_board_info(4, colibri_t30_regulators, 1);

	/* Register the TPS6236x. */
	pr_info("Registering the device TPS62360\n");
	i2c_register_board_info(4, tps6236x_boardinfo, 1);

	return 0;
}

int __init colibri_t20_fixed_regulator_init(void)
{
	return platform_add_devices(fixed_reg_devs_colibri_t30,
				    ARRAY_SIZE(fixed_reg_devs_colibri_t30));
}
subsys_initcall_sync(colibri_t20_fixed_regulator_init);

static void colibri_t30_board_suspend(int lp_state, enum suspend_stage stg)
{
	if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
		tegra_console_uart_suspend();
}

static void colibri_t30_board_resume(int lp_state, enum resume_stage stg)
{
	if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
		tegra_console_uart_resume();
}

static struct tegra_suspend_platform_data colibri_t30_suspend_data = {
	.cpu_timer	= 2000,
	.cpu_off_timer	= 200,
	.suspend_mode	= TEGRA_SUSPEND_LP1,
	.core_timer	= 0x7e7e,
	.core_off_timer = 0,
	.corereq_high	= true,
	.sysclkreq_high	= true,
	.cpu_lp2_min_residency = 2000,
	.board_suspend = colibri_t30_board_suspend,
	.board_resume = colibri_t30_board_resume,
};

int __init colibri_t30_suspend_init(void)
{
	/* CORE_PWR_REQ to be high required to enable the dc-dc converter tps62362 */
	colibri_t30_suspend_data.corereq_high = true;

//required?
	colibri_t30_suspend_data.cpu_timer = 5000;
	colibri_t30_suspend_data.cpu_off_timer = 5000;

	tegra_init_suspend(&colibri_t30_suspend_data);
	return 0;
}

#ifdef CONFIG_TEGRA_EDP_LIMITS
int __init colibri_t30_edp_init(void)
{
	unsigned int regulator_mA;

	regulator_mA = get_maximum_cpu_current_supported();
	if (!regulator_mA) {
		regulator_mA = 6000; /* regular T30/s */
	}
	pr_info("%s: CPU regulator %d mA\n", __func__, regulator_mA);

	tegra_init_cpu_edp_limits(regulator_mA);
	return 0;
}
#endif