arm: tegra: enterprise: Enable VBUS_INT_PULLDN for discharge
[linux-2.6.git] / arch / arm / mach-tegra / board-enterprise-power.c
1 /*
2  * arch/arm/mach-tegra/board-enterprise-power.c
3  *
4  * Copyright (C) 2011 NVIDIA, Inc.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18  * 02111-1307, USA
19  */
20 #include <linux/i2c.h>
21 #include <linux/pda_power.h>
22 #include <linux/platform_device.h>
23 #include <linux/resource.h>
24 #include <linux/regulator/machine.h>
25 #include <linux/regulator/gpio-switch-regulator.h>
26 #include <linux/mfd/tps80031.h>
27 #include <linux/regulator/tps80031-regulator.h>
28 #include <linux/gpio.h>
29 #include <linux/io.h>
30
31 #include <mach/edp.h>
32 #include <mach/iomap.h>
33 #include <mach/irqs.h>
34 #include <mach/pinmux.h>
35 #include <mach/tsensor.h>
36
37 #include "gpio-names.h"
38 #include "board.h"
39 #include "board-enterprise.h"
40 #include "pm.h"
41 #include "wakeups-t3.h"
42
43 #define PMC_CTRL                0x0
44 #define PMC_CTRL_INTR_LOW       (1 << 17)
45
46 /************************ TPS80031 based regulator ****************/
47 static struct regulator_consumer_supply tps80031_vio_supply[] = {
48         REGULATOR_SUPPLY("vio_1v8", NULL),
49         REGULATOR_SUPPLY("avdd_osc", NULL),
50         REGULATOR_SUPPLY("vddio_sys", NULL),
51         REGULATOR_SUPPLY("vddio_uart", NULL),
52         REGULATOR_SUPPLY("pwrdet_uart", NULL),
53         REGULATOR_SUPPLY("vddio_lcd", NULL),
54         REGULATOR_SUPPLY("pwrdet_lcd", NULL),
55         REGULATOR_SUPPLY("vddio_audio", NULL),
56         REGULATOR_SUPPLY("pwrdet_audio", NULL),
57         REGULATOR_SUPPLY("vddio_bb", NULL),
58         REGULATOR_SUPPLY("pwrdet_bb", NULL),
59         REGULATOR_SUPPLY("vddio_gmi", NULL),
60         REGULATOR_SUPPLY("avdd_usb_pll", NULL),
61         REGULATOR_SUPPLY("vddio_cam", NULL),
62         REGULATOR_SUPPLY("pwrdet_cam", NULL),
63         REGULATOR_SUPPLY("vddio_sdmmc1", NULL),
64         REGULATOR_SUPPLY("pwrdet_sdmmc1", NULL),
65         REGULATOR_SUPPLY("vddio_sdmmc4", NULL),
66         REGULATOR_SUPPLY("pwrdet_sdmmc4", NULL),
67         REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
68         REGULATOR_SUPPLY("vddio_gps", NULL),
69         REGULATOR_SUPPLY("vdd_lcd_buffered", NULL),
70         REGULATOR_SUPPLY("vddio_nand", NULL),
71         REGULATOR_SUPPLY("pwrdet_nand", NULL),
72         REGULATOR_SUPPLY("vddio_sd", NULL),
73         REGULATOR_SUPPLY("vdd_bat", NULL),
74         REGULATOR_SUPPLY("vdd_io", NULL),
75         REGULATOR_SUPPLY("pwrdet_pex_ctl", NULL),
76 };
77
78 static struct regulator_consumer_supply tps80031_smps1_supply[] = {
79         REGULATOR_SUPPLY("vdd_cpu", NULL),
80 };
81
82 static struct regulator_consumer_supply tps80031_smps2_supply[] = {
83         REGULATOR_SUPPLY("vdd_core", NULL),
84 };
85
86 static struct regulator_consumer_supply tps80031_smps3_supply[] = {
87         REGULATOR_SUPPLY("en_vddio_ddr_1v2", NULL),
88         REGULATOR_SUPPLY("vddio_ddr", NULL),
89         REGULATOR_SUPPLY("vdd_lpddr", NULL),
90         REGULATOR_SUPPLY("ddr_comp_pu", NULL),
91 };
92
93 static struct regulator_consumer_supply tps80031_smps4_supply[] = {
94         REGULATOR_SUPPLY("vddio_sdmmc_2v85", NULL),
95         REGULATOR_SUPPLY("pwrdet_sdmmc3", NULL),
96 };
97
98 static struct regulator_consumer_supply tps80031_vana_supply[] = {
99         REGULATOR_SUPPLY("unused_vana", NULL),
100 };
101
102 static struct regulator_consumer_supply tps80031_ldo1_supply[] = {
103         REGULATOR_SUPPLY("avdd_dsi_csi", NULL),
104         REGULATOR_SUPPLY("pwrdet_mipi", NULL),
105 };
106
107 static struct regulator_consumer_supply tps80031_ldo2_supply[] = {
108         REGULATOR_SUPPLY("vdd_rtc", NULL),
109 };
110
111 static struct regulator_consumer_supply tps80031_ldo3_supply[] = {
112         REGULATOR_SUPPLY("vdd_vbrtr", NULL),
113 };
114
115 static struct regulator_consumer_supply tps80031_ldo4_supply[] = {
116         REGULATOR_SUPPLY("avdd_lcd", NULL),
117 };
118
119 static struct regulator_consumer_supply tps80031_ldo5_supply[] = {
120         REGULATOR_SUPPLY("vdd_sensor", NULL),
121         REGULATOR_SUPPLY("vdd_compass", NULL),
122         REGULATOR_SUPPLY("vdd_als", NULL),
123         REGULATOR_SUPPLY("vdd_gyro", NULL),
124         REGULATOR_SUPPLY("vdd_touch", NULL),
125         REGULATOR_SUPPLY("vdd_proxim_diode", NULL),
126 };
127
128 static struct regulator_consumer_supply tps80031_ldo6_supply[] = {
129         REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
130         REGULATOR_SUPPLY("vddf_core_emmc", NULL),
131 };
132
133 static struct regulator_consumer_supply tps80031_ldo7_supply[] = {
134         REGULATOR_SUPPLY("vdd_plla_p_c_s", NULL),
135         REGULATOR_SUPPLY("vdd_pllm", NULL),
136         REGULATOR_SUPPLY("vdd_pllu_d", NULL),
137         REGULATOR_SUPPLY("vdd_pllx", NULL),
138 };
139
140 static struct regulator_consumer_supply tps80031_ldoln_supply[] = {
141         REGULATOR_SUPPLY("vdd_ddr_hs", NULL),
142 };
143
144 static struct regulator_consumer_supply tps80031_ldousb_supply[] = {
145         REGULATOR_SUPPLY("unused_ldousb", NULL),
146 };
147
148 static struct regulator_consumer_supply tps80031_vbus_supply[] = {
149         REGULATOR_SUPPLY("usb_vbus", NULL),
150 };
151
152 #define TPS_PDATA_INIT(_id, _minmv, _maxmv, _supply_reg, _always_on,    \
153         _boot_on, _apply_uv, _init_uV, _init_enable, _init_apply,       \
154         _flags, _delay)                                                 \
155         static struct tps80031_regulator_platform_data pdata_##_id = {  \
156                 .regulator = {                                          \
157                         .constraints = {                                \
158                                 .min_uV = (_minmv)*1000,                \
159                                 .max_uV = (_maxmv)*1000,                \
160                                 .valid_modes_mask = (REGULATOR_MODE_NORMAL |  \
161                                                 REGULATOR_MODE_STANDBY),      \
162                                 .valid_ops_mask = (REGULATOR_CHANGE_MODE |    \
163                                                 REGULATOR_CHANGE_STATUS |     \
164                                                 REGULATOR_CHANGE_VOLTAGE),    \
165                                 .always_on = _always_on,                \
166                                 .boot_on = _boot_on,                    \
167                                 .apply_uV = _apply_uv,                  \
168                         },                                              \
169                         .num_consumer_supplies =                        \
170                                 ARRAY_SIZE(tps80031_##_id##_supply),    \
171                         .consumer_supplies = tps80031_##_id##_supply,   \
172                         .supply_regulator = _supply_reg,                \
173                 },                                                      \
174                 .init_uV =  _init_uV * 1000,                            \
175                 .init_enable = _init_enable,                            \
176                 .init_apply = _init_apply,                              \
177                 .flags = _flags,                                        \
178                 .delay_us = _delay,                                     \
179         }
180
181 TPS_PDATA_INIT(vio,   600, 2100, 0, 1, 0, 0, -1, 0, 0, 0, 0);
182 TPS_PDATA_INIT(smps1, 600, 2100, 0, 0, 0, 0, -1, 0, 0, PWR_REQ_INPUT_PREQ2, 0);
183 TPS_PDATA_INIT(smps2, 600, 2100, 0, 0, 0, 0, -1, 0, 0, 0, 0);
184 TPS_PDATA_INIT(smps3, 600, 2100, 0, 1, 0, 0, -1, 0, 0, 0, 0);
185 TPS_PDATA_INIT(smps4, 600, 2100, 0, 0, 0, 0, -1, 0, 0, 0, 0);
186
187 TPS_PDATA_INIT(ldo1, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0, 0);
188 TPS_PDATA_INIT(ldo2, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0, 0);
189 TPS_PDATA_INIT(ldo3, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0, 0);
190 TPS_PDATA_INIT(ldo4, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0, 0);
191 TPS_PDATA_INIT(ldo5, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0, 0);
192 TPS_PDATA_INIT(ldo6, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0, 0);
193 TPS_PDATA_INIT(ldo7, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0, 0);
194 TPS_PDATA_INIT(ldoln, 1000, 3300, tps80031_rails(SMPS3), 0, 0, 0, -1, 0, 0, 0, 0);
195 TPS_PDATA_INIT(ldousb, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, USBLDO_INPUT_VSYS, 0);
196 TPS_PDATA_INIT(vana,  1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0, 0);
197 TPS_PDATA_INIT(vbus,  0, 5000, 0, 0, 0, 0, -1, 0, 0, (VBUS_SW_ONLY | VBUS_DISCHRG_EN_PDN), 100000);
198
199 static struct tps80031_rtc_platform_data rtc_data = {
200         .irq = ENT_TPS80031_IRQ_BASE + TPS80031_INT_RTC_ALARM,
201         .time = {
202                 .tm_year = 2011,
203                 .tm_mon = 0,
204                 .tm_mday = 1,
205                 .tm_hour = 1,
206                 .tm_min = 2,
207                 .tm_sec = 3,
208         },
209 };
210
211 #define TPS_RTC()                               \
212         {                                               \
213                 .id     = 0,            \
214                 .name   = "rtc_tps80031",       \
215                 .platform_data = &rtc_data,     \
216         }
217
218 #define TPS_REG(_id, _data)                             \
219         {                                               \
220                 .id      = TPS80031_ID_##_id,           \
221                 .name   = "tps80031-regulator",         \
222                 .platform_data  = &pdata_##_data,       \
223         }
224
225 static struct tps80031_subdev_info tps80031_devs[] = {
226         TPS_REG(VIO, vio),
227         TPS_REG(SMPS1, smps1),
228         TPS_REG(SMPS2, smps2),
229         TPS_REG(SMPS3, smps3),
230         TPS_REG(SMPS4, smps4),
231         TPS_REG(LDO1, ldo1),
232         TPS_REG(LDO2, ldo2),
233         TPS_REG(LDO3, ldo3),
234         TPS_REG(LDO4, ldo4),
235         TPS_REG(LDO5, ldo5),
236         TPS_REG(LDO6, ldo6),
237         TPS_REG(LDO7, ldo7),
238         TPS_REG(LDOLN, ldoln),
239         TPS_REG(LDOUSB, ldousb),
240         TPS_REG(VANA, vana),
241         TPS_REG(VBUS, vbus),
242         TPS_RTC(),
243 };
244
245 struct tps80031_32kclock_plat_data clk32k_pdata = {
246         .en_clk32kg = 1,
247 };
248 static struct tps80031_platform_data tps_platform = {
249         .num_subdevs    = ARRAY_SIZE(tps80031_devs),
250         .subdevs        = tps80031_devs,
251         .irq_base       = ENT_TPS80031_IRQ_BASE,
252         .gpio_base      = ENT_TPS80031_GPIO_BASE,
253         .clk32k_pdata   = &clk32k_pdata,
254 };
255
256 static struct i2c_board_info __initdata enterprise_regulators[] = {
257         {
258                 I2C_BOARD_INFO("tps80031", 0x4A),
259                 .irq            = INT_EXTERNAL_PMU,
260                 .platform_data  = &tps_platform,
261         },
262 };
263
264 /************************ GPIO based switch regulator ****************/
265
266 /* REGEN1 from PMU*/
267 static struct regulator_consumer_supply gpio_switch_pmu_5v15_en_supply[] = {
268         REGULATOR_SUPPLY("vdd_5v15", NULL),
269 };
270 static int gpio_switch_pmu_5v15_en_voltages[] = {5000};
271
272 /* REGEN2 from PMU*/
273 static struct regulator_consumer_supply gpio_switch_pmu_3v3_en_supply[] = {
274         REGULATOR_SUPPLY("avdd_usb_hdmi_3v3", NULL),
275         REGULATOR_SUPPLY("avdd_usb", NULL),
276         REGULATOR_SUPPLY("avdd_hdmi", NULL),
277         REGULATOR_SUPPLY("vdd_nct1008", NULL),
278 };
279 static int gpio_switch_pmu_3v3_en_voltages[] = {3300};
280
281 /* SYSEN from PMU*/
282 static struct regulator_consumer_supply gpio_switch_pmu_hdmi_5v0_en_supply[] = {
283         REGULATOR_SUPPLY("hdmi_5v0", NULL),
284 };
285 static int gpio_switch_pmu_hdmi_5v0_en_voltages[] = {5000};
286
287 /* LCD-D16 (GPIO M0) from T30*/
288 static struct regulator_consumer_supply gpio_switch_vdd_fuse_en_supply[] = {
289         REGULATOR_SUPPLY("vdd_fuse", NULL),
290 };
291 static int gpio_switch_vdd_fuse_en_voltages[] = {3300};
292
293 /* LCD-D17 (GPIO M1) from T30*/
294 static struct regulator_consumer_supply gpio_switch_sdmmc3_vdd_sel_supply[] = {
295         REGULATOR_SUPPLY("vddio_sdmmc3_2v85_1v8", NULL),
296         REGULATOR_SUPPLY("sdmmc3_compu_pu", NULL),
297         REGULATOR_SUPPLY("vddio_sdmmc3", NULL),
298         REGULATOR_SUPPLY("vsys_3v7", NULL),
299 };
300 static int gpio_switch_sdmmc3_vdd_sel_voltages[] = {2850};
301
302 /* LCD-D23 (GPIO M7) from T30*/
303 /* 2-0036 is dev_name of ar0832 */
304 /* 2-0010 is dev_name of ov9726 */
305 static struct regulator_consumer_supply gpio_switch_cam_ldo_2v8_en_supply[] = {
306         REGULATOR_SUPPLY("vaa", "2-0036"),
307         REGULATOR_SUPPLY("vaa", "2-0032"),
308         REGULATOR_SUPPLY("avdd", "2-0010"),
309         REGULATOR_SUPPLY("vdd_2v8_cam", NULL),
310 };
311 static int gpio_switch_cam_ldo_2v8_en_voltages[] = {2800};
312
313 /* LCD-D9 (GPIO F1) from T30*/
314 /* 2-0036 is dev_name of ar0832 */
315 /* 2-0010 is dev_name of ov9726 */
316 static struct regulator_consumer_supply gpio_switch_cam_ldo_1v8_en_supply[] = {
317         REGULATOR_SUPPLY("vdd", "2-0036"),
318         REGULATOR_SUPPLY("vdd", "2-0032"),
319         REGULATOR_SUPPLY("dovdd", "2-0010"),
320         REGULATOR_SUPPLY("vdd_1v8_cam", NULL),
321 };
322 static int gpio_switch_cam_ldo_1v8_en_voltages[] = {1800};
323
324 /* Macro for defining gpio switch regulator sub device data */
325 #define GREG_INIT(_id, _name, _input_supply, _gpio_nr, _active_low, \
326                         _init_state, _pg, _enable, _disable)            \
327         static struct gpio_switch_regulator_subdev_data gpio_pdata_##_name =  \
328         {                                                               \
329                 .regulator_name = "gpio-switch-"#_name,                 \
330                 .input_supply   = _input_supply,                        \
331                 .id             = _id,                                  \
332                 .gpio_nr        = _gpio_nr,                             \
333                 .pin_group      = _pg,                                  \
334                 .active_low     = _active_low,                          \
335                 .init_state     = _init_state,                          \
336                 .voltages       = gpio_switch_##_name##_voltages,       \
337                 .n_voltages     = ARRAY_SIZE(gpio_switch_##_name##_voltages), \
338                 .num_consumer_supplies =                                \
339                                 ARRAY_SIZE(gpio_switch_##_name##_supply), \
340                 .consumer_supplies = gpio_switch_##_name##_supply,      \
341                 .constraints = {                                        \
342                         .valid_modes_mask = (REGULATOR_MODE_NORMAL |    \
343                                         REGULATOR_MODE_STANDBY),        \
344                         .valid_ops_mask = (REGULATOR_CHANGE_MODE |      \
345                                         REGULATOR_CHANGE_STATUS |       \
346                                         REGULATOR_CHANGE_VOLTAGE),      \
347                 },                                                      \
348                 .enable_rail = _enable,                                 \
349                 .disable_rail = _disable,                               \
350         }
351
352 GREG_INIT(0, pmu_5v15_en,     NULL,      ENT_TPS80031_GPIO_REGEN1, false, 0, 0, 0, 0);
353 GREG_INIT(1, pmu_3v3_en,      "vdd_5v15", ENT_TPS80031_GPIO_REGEN2, false, 0, 0, 0, 0);
354 GREG_INIT(2, pmu_hdmi_5v0_en, "vdd_5v15", ENT_TPS80031_GPIO_SYSEN, false, 0, 0, 0, 0);
355
356 GREG_INIT(3, vdd_fuse_en, "avdd_usb_hdmi_3v3", TEGRA_GPIO_PM0, false, 0, 0, 0, 0);
357 GREG_INIT(4, sdmmc3_vdd_sel, "vddio_sdmmc_2v85", TEGRA_GPIO_PM1, false, 0, 0, 0, 0);
358 GREG_INIT(5, cam_ldo_2v8_en, NULL, TEGRA_GPIO_PM7, false, 0, 0, 0, 0);
359 GREG_INIT(6, cam_ldo_1v8_en, NULL, TEGRA_GPIO_PF1, false, 0, 0, 0, 0);
360
361 #define ADD_GPIO_REG(_name)     (&gpio_pdata_##_name)
362 static struct gpio_switch_regulator_subdev_data *gswitch_subdevs[] = {
363         ADD_GPIO_REG(pmu_5v15_en),
364         ADD_GPIO_REG(pmu_3v3_en),
365         ADD_GPIO_REG(pmu_hdmi_5v0_en),
366         ADD_GPIO_REG(vdd_fuse_en),
367         ADD_GPIO_REG(sdmmc3_vdd_sel),
368         ADD_GPIO_REG(cam_ldo_2v8_en),
369         ADD_GPIO_REG(cam_ldo_1v8_en),
370 };
371
372 static struct gpio_switch_regulator_platform_data  gswitch_pdata = {
373         .num_subdevs = ARRAY_SIZE(gswitch_subdevs),
374         .subdevs = gswitch_subdevs,
375 };
376
377 static struct platform_device gswitch_regulator_pdata = {
378         .name   = "gpio-switch-regulator",
379         .id     = -1,
380         .dev    = {
381                 .platform_data = &gswitch_pdata,
382         },
383 };
384
385 static int __init enterprise_gpio_switch_regulator_init(void)
386 {
387         int i;
388         for (i = 0; i < gswitch_pdata.num_subdevs; ++i) {
389                 struct gpio_switch_regulator_subdev_data *gswitch_data =
390                                                 gswitch_pdata.subdevs[i];
391                 if (gswitch_data->gpio_nr <= TEGRA_NR_GPIOS)
392                         tegra_gpio_enable(gswitch_data->gpio_nr);
393         }
394         return platform_device_register(&gswitch_regulator_pdata);
395 }
396
397 static void enterprise_power_off(void)
398 {
399         int ret;
400         pr_info("enterprise: Powering off the device\n");
401         ret = tps80031_power_off();
402         if (ret)
403                 pr_err("enterprise: failed to power off\n");
404         while(1);
405 }
406
407 void __init enterprise_tsensor_init(void)
408 {
409         tegra3_tsensor_init(NULL);
410 }
411
412 int __init enterprise_regulator_init(void)
413 {
414         void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
415         u32 pmc_ctrl;
416
417         /* configure the power management controller to trigger PMU
418          * interrupts when low */
419
420         pmc_ctrl = readl(pmc + PMC_CTRL);
421         writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
422
423         i2c_register_board_info(4, enterprise_regulators, 1);
424         enterprise_gpio_switch_regulator_init();
425         pm_power_off = enterprise_power_off;
426         return 0;
427 }
428
429 static void enterprise_board_suspend(int lp_state, enum suspend_stage stg)
430 {
431         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
432                 tegra_console_uart_suspend();
433 }
434
435 static void enterprise_board_resume(int lp_state, enum resume_stage stg)
436 {
437         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
438                 tegra_console_uart_resume();
439 }
440
441 static struct tegra_suspend_platform_data enterprise_suspend_data = {
442         .cpu_timer      = 2000,
443         .cpu_off_timer  = 200,
444         .suspend_mode   = TEGRA_SUSPEND_LP0,
445         .core_timer     = 0x7e7e,
446         .core_off_timer = 0,
447         .corereq_high   = true,
448         .sysclkreq_high = true,
449         .board_suspend = enterprise_board_suspend,
450         .board_resume = enterprise_board_resume,
451 };
452
453 static void enterprise_init_deep_sleep_mode(void)
454 {
455         struct board_info bi;
456         tegra_get_board_info(&bi);
457         if (bi.board_id == BOARD_1205 && bi.fab == ENTERPRISE_FAB_A01)
458                 enterprise_suspend_data.suspend_mode = TEGRA_SUSPEND_LP1;
459 }
460
461 int __init enterprise_suspend_init(void)
462 {
463         enterprise_init_deep_sleep_mode();
464         tegra_init_suspend(&enterprise_suspend_data);
465         return 0;
466 }
467
468 #ifdef CONFIG_TEGRA_EDP_LIMITS
469
470 int __init enterprise_edp_init(void)
471 {
472         tegra_init_cpu_edp_limits(2500); /* 2.5A regulator */
473         return 0;
474 }
475 #endif