arm: tegra: enterprise: tsensor init
[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, _flags) \
154         static struct tps80031_regulator_platform_data pdata_##_id = {  \
155                 .regulator = {                                          \
156                         .constraints = {                                \
157                                 .min_uV = (_minmv)*1000,                \
158                                 .max_uV = (_maxmv)*1000,                \
159                                 .valid_modes_mask = (REGULATOR_MODE_NORMAL |  \
160                                                 REGULATOR_MODE_STANDBY),      \
161                                 .valid_ops_mask = (REGULATOR_CHANGE_MODE |    \
162                                                 REGULATOR_CHANGE_STATUS |     \
163                                                 REGULATOR_CHANGE_VOLTAGE),    \
164                                 .always_on = _always_on,                \
165                                 .boot_on = _boot_on,                    \
166                                 .apply_uV = _apply_uv,                  \
167                         },                                              \
168                         .num_consumer_supplies =                        \
169                                 ARRAY_SIZE(tps80031_##_id##_supply),    \
170                         .consumer_supplies = tps80031_##_id##_supply,   \
171                         .supply_regulator = _supply_reg,                \
172                 },                                                      \
173                 .init_uV =  _init_uV * 1000,                            \
174                 .init_enable = _init_enable,                            \
175                 .init_apply = _init_apply,                              \
176                 .flags = _flags,                                        \
177         }
178
179 TPS_PDATA_INIT(vio,   600, 2100, 0, 1, 0, 0, -1, 0, 0, 0);
180 TPS_PDATA_INIT(smps1, 600, 2100, 0, 0, 0, 0, -1, 0, 0, PWR_REQ_INPUT_PREQ2);
181 TPS_PDATA_INIT(smps2, 600, 2100, 0, 0, 0, 0, -1, 0, 0, 0);
182 TPS_PDATA_INIT(smps3, 600, 2100, 0, 1, 0, 0, -1, 0, 0, 0);
183 TPS_PDATA_INIT(smps4, 600, 2100, 0, 0, 0, 0, -1, 0, 0, 0);
184
185 TPS_PDATA_INIT(ldo1, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0);
186 TPS_PDATA_INIT(ldo2, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
187 TPS_PDATA_INIT(ldo3, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0);
188 TPS_PDATA_INIT(ldo4, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
189 TPS_PDATA_INIT(ldo5, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
190 TPS_PDATA_INIT(ldo6, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
191 TPS_PDATA_INIT(ldo7, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0);
192 TPS_PDATA_INIT(ldoln, 1000, 3300, tps80031_rails(SMPS3), 0, 0, 0, -1, 0, 0, 0);
193 TPS_PDATA_INIT(ldousb, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, USBLDO_INPUT_VSYS);
194 TPS_PDATA_INIT(vana,  1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
195 TPS_PDATA_INIT(vbus,  0, 5000, 0, 0, 0, 0, -1, 0, 0, VBUS_SW_ONLY);
196
197 static struct tps80031_rtc_platform_data rtc_data = {
198         .irq = ENT_TPS80031_IRQ_BASE + TPS80031_INT_RTC_ALARM,
199         .time = {
200                 .tm_year = 2011,
201                 .tm_mon = 0,
202                 .tm_mday = 1,
203                 .tm_hour = 1,
204                 .tm_min = 2,
205                 .tm_sec = 3,
206         },
207 };
208
209 #define TPS_RTC()                               \
210         {                                               \
211                 .id     = 0,            \
212                 .name   = "rtc_tps80031",       \
213                 .platform_data = &rtc_data,     \
214         }
215
216 #define TPS_REG(_id, _data)                             \
217         {                                               \
218                 .id      = TPS80031_ID_##_id,           \
219                 .name   = "tps80031-regulator",         \
220                 .platform_data  = &pdata_##_data,       \
221         }
222
223 static struct tps80031_subdev_info tps80031_devs[] = {
224         TPS_REG(VIO, vio),
225         TPS_REG(SMPS1, smps1),
226         TPS_REG(SMPS2, smps2),
227         TPS_REG(SMPS3, smps3),
228         TPS_REG(SMPS4, smps4),
229         TPS_REG(LDO1, ldo1),
230         TPS_REG(LDO2, ldo2),
231         TPS_REG(LDO3, ldo3),
232         TPS_REG(LDO4, ldo4),
233         TPS_REG(LDO5, ldo5),
234         TPS_REG(LDO6, ldo6),
235         TPS_REG(LDO7, ldo7),
236         TPS_REG(LDOLN, ldoln),
237         TPS_REG(LDOUSB, ldousb),
238         TPS_REG(VANA, vana),
239         TPS_REG(VBUS, vbus),
240         TPS_RTC(),
241 };
242
243 struct tps80031_32kclock_plat_data clk32k_pdata = {
244         .en_clk32kg = 1,
245 };
246 static struct tps80031_platform_data tps_platform = {
247         .num_subdevs    = ARRAY_SIZE(tps80031_devs),
248         .subdevs        = tps80031_devs,
249         .irq_base       = ENT_TPS80031_IRQ_BASE,
250         .gpio_base      = ENT_TPS80031_GPIO_BASE,
251         .clk32k_pdata   = &clk32k_pdata,
252 };
253
254 static struct i2c_board_info __initdata enterprise_regulators[] = {
255         {
256                 I2C_BOARD_INFO("tps80031", 0x48),
257                 .irq            = INT_EXTERNAL_PMU,
258                 .platform_data  = &tps_platform,
259         },
260 };
261
262 /************************ GPIO based switch regulator ****************/
263
264 /* REGEN1 from PMU*/
265 static struct regulator_consumer_supply gpio_switch_pmu_5v15_en_supply[] = {
266         REGULATOR_SUPPLY("vdd_5v15", NULL),
267 };
268 static int gpio_switch_pmu_5v15_en_voltages[] = {5000};
269
270 /* REGEN2 from PMU*/
271 static struct regulator_consumer_supply gpio_switch_pmu_3v3_en_supply[] = {
272         REGULATOR_SUPPLY("avdd_usb_hdmi_3v3", NULL),
273         REGULATOR_SUPPLY("avdd_usb", NULL),
274         REGULATOR_SUPPLY("avdd_hdmi", NULL),
275         REGULATOR_SUPPLY("vdd_nct1008", NULL),
276 };
277 static int gpio_switch_pmu_3v3_en_voltages[] = {3300};
278
279 /* SYSEN from PMU*/
280 static struct regulator_consumer_supply gpio_switch_pmu_hdmi_5v0_en_supply[] = {
281         REGULATOR_SUPPLY("hdmi_5v0", NULL),
282 };
283 static int gpio_switch_pmu_hdmi_5v0_en_voltages[] = {5000};
284
285 /* LCD-D16 (GPIO M0) from T30*/
286 static struct regulator_consumer_supply gpio_switch_vdd_fuse_en_supply[] = {
287         REGULATOR_SUPPLY("vdd_fuse", NULL),
288 };
289 static int gpio_switch_vdd_fuse_en_voltages[] = {3300};
290
291 /* LCD-D17 (GPIO M1) from T30*/
292 static struct regulator_consumer_supply gpio_switch_sdmmc3_vdd_sel_supply[] = {
293         REGULATOR_SUPPLY("vddio_sdmmc3_2v85_1v8", NULL),
294         REGULATOR_SUPPLY("sdmmc3_compu_pu", NULL),
295         REGULATOR_SUPPLY("vddio_sdmmc3", NULL),
296         REGULATOR_SUPPLY("vsys_3v7", NULL),
297 };
298 static int gpio_switch_sdmmc3_vdd_sel_voltages[] = {2850};
299
300 /* LCD-D23 (GPIO M7) from T30*/
301 /* 2-0036 is dev_name of ar0832 */
302 /* 2-0010 is dev_name of ov9726 */
303 static struct regulator_consumer_supply gpio_switch_cam_ldo_2v8_en_supply[] = {
304         REGULATOR_SUPPLY("vaa", "2-0036"),
305         REGULATOR_SUPPLY("vaa", "2-0032"),
306         REGULATOR_SUPPLY("avdd", "2-0010"),
307         REGULATOR_SUPPLY("vdd_2v8_cam", NULL),
308 };
309 static int gpio_switch_cam_ldo_2v8_en_voltages[] = {2800};
310
311 /* LCD-D9 (GPIO F1) from T30*/
312 /* 2-0036 is dev_name of ar0832 */
313 /* 2-0010 is dev_name of ov9726 */
314 static struct regulator_consumer_supply gpio_switch_cam_ldo_1v8_en_supply[] = {
315         REGULATOR_SUPPLY("vdd", "2-0036"),
316         REGULATOR_SUPPLY("vdd", "2-0032"),
317         REGULATOR_SUPPLY("dovdd", "2-0010"),
318         REGULATOR_SUPPLY("vdd_1v8_cam", NULL),
319 };
320 static int gpio_switch_cam_ldo_1v8_en_voltages[] = {1800};
321
322 /* Macro for defining gpio switch regulator sub device data */
323 #define GREG_INIT(_id, _name, _input_supply, _gpio_nr, _active_low, \
324                         _init_state, _pg, _enable, _disable)            \
325         static struct gpio_switch_regulator_subdev_data gpio_pdata_##_name =  \
326         {                                                               \
327                 .regulator_name = "gpio-switch-"#_name,                 \
328                 .input_supply   = _input_supply,                        \
329                 .id             = _id,                                  \
330                 .gpio_nr        = _gpio_nr,                             \
331                 .pin_group      = _pg,                                  \
332                 .active_low     = _active_low,                          \
333                 .init_state     = _init_state,                          \
334                 .voltages       = gpio_switch_##_name##_voltages,       \
335                 .n_voltages     = ARRAY_SIZE(gpio_switch_##_name##_voltages), \
336                 .num_consumer_supplies =                                \
337                                 ARRAY_SIZE(gpio_switch_##_name##_supply), \
338                 .consumer_supplies = gpio_switch_##_name##_supply,      \
339                 .constraints = {                                        \
340                         .valid_modes_mask = (REGULATOR_MODE_NORMAL |    \
341                                         REGULATOR_MODE_STANDBY),        \
342                         .valid_ops_mask = (REGULATOR_CHANGE_MODE |      \
343                                         REGULATOR_CHANGE_STATUS |       \
344                                         REGULATOR_CHANGE_VOLTAGE),      \
345                 },                                                      \
346                 .enable_rail = _enable,                                 \
347                 .disable_rail = _disable,                               \
348         }
349
350 GREG_INIT(0, pmu_5v15_en,     NULL,      ENT_TPS80031_GPIO_REGEN1, false, 0, 0, 0, 0);
351 GREG_INIT(1, pmu_3v3_en,      "vdd_5v15", ENT_TPS80031_GPIO_REGEN2, false, 0, 0, 0, 0);
352 GREG_INIT(2, pmu_hdmi_5v0_en, "vdd_5v15", ENT_TPS80031_GPIO_SYSEN, false, 0, 0, 0, 0);
353
354 GREG_INIT(3, vdd_fuse_en, "avdd_usb_hdmi_3v3", TEGRA_GPIO_PM0, false, 0, 0, 0, 0);
355 GREG_INIT(4, sdmmc3_vdd_sel, "vddio_sdmmc_2v85", TEGRA_GPIO_PM1, false, 0, 0, 0, 0);
356 GREG_INIT(5, cam_ldo_2v8_en, NULL, TEGRA_GPIO_PM7, false, 0, 0, 0, 0);
357 GREG_INIT(6, cam_ldo_1v8_en, NULL, TEGRA_GPIO_PF1, false, 0, 0, 0, 0);
358
359 #define ADD_GPIO_REG(_name)     (&gpio_pdata_##_name)
360 static struct gpio_switch_regulator_subdev_data *gswitch_subdevs[] = {
361         ADD_GPIO_REG(pmu_5v15_en),
362         ADD_GPIO_REG(pmu_3v3_en),
363         ADD_GPIO_REG(pmu_hdmi_5v0_en),
364         ADD_GPIO_REG(vdd_fuse_en),
365         ADD_GPIO_REG(sdmmc3_vdd_sel),
366         ADD_GPIO_REG(cam_ldo_2v8_en),
367         ADD_GPIO_REG(cam_ldo_1v8_en),
368 };
369
370 static struct gpio_switch_regulator_platform_data  gswitch_pdata = {
371         .num_subdevs = ARRAY_SIZE(gswitch_subdevs),
372         .subdevs = gswitch_subdevs,
373 };
374
375 static struct platform_device gswitch_regulator_pdata = {
376         .name   = "gpio-switch-regulator",
377         .id     = -1,
378         .dev    = {
379                 .platform_data = &gswitch_pdata,
380         },
381 };
382
383 static int __init enterprise_gpio_switch_regulator_init(void)
384 {
385         int i;
386         for (i = 0; i < gswitch_pdata.num_subdevs; ++i) {
387                 struct gpio_switch_regulator_subdev_data *gswitch_data =
388                                                 gswitch_pdata.subdevs[i];
389                 if (gswitch_data->gpio_nr <= TEGRA_NR_GPIOS)
390                         tegra_gpio_enable(gswitch_data->gpio_nr);
391         }
392         return platform_device_register(&gswitch_regulator_pdata);
393 }
394
395 static void enterprise_power_off(void)
396 {
397         int ret;
398         pr_info("enterprise: Powering off the device\n");
399         ret = tps80031_power_off();
400         if (ret)
401                 pr_err("enterprise: failed to power off\n");
402         while(1);
403 }
404
405 void __init enterprise_tsensor_init(void)
406 {
407         tegra3_tsensor_init(NULL);
408 }
409
410 int __init enterprise_regulator_init(void)
411 {
412         void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
413         u32 pmc_ctrl;
414
415         /* configure the power management controller to trigger PMU
416          * interrupts when low */
417
418         pmc_ctrl = readl(pmc + PMC_CTRL);
419         writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
420
421         i2c_register_board_info(4, enterprise_regulators, 1);
422         enterprise_gpio_switch_regulator_init();
423         pm_power_off = enterprise_power_off;
424         return 0;
425 }
426
427 static void enterprise_board_suspend(int lp_state, enum suspend_stage stg)
428 {
429         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
430                 tegra_console_uart_suspend();
431 }
432
433 static void enterprise_board_resume(int lp_state, enum resume_stage stg)
434 {
435         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
436                 tegra_console_uart_resume();
437 }
438
439 static struct tegra_suspend_platform_data enterprise_suspend_data = {
440         .cpu_timer      = 2000,
441         .cpu_off_timer  = 200,
442         .suspend_mode   = TEGRA_SUSPEND_LP0,
443         .core_timer     = 0x7e7e,
444         .core_off_timer = 0,
445         .corereq_high   = true,
446         .sysclkreq_high = true,
447         .board_suspend = enterprise_board_suspend,
448         .board_resume = enterprise_board_resume,
449 };
450
451 static void enterprise_init_deep_sleep_mode(void)
452 {
453         struct board_info bi;
454         tegra_get_board_info(&bi);
455         if (bi.board_id == BOARD_1205 && bi.fab == ENTERPRISE_FAB_A01)
456                 enterprise_suspend_data.suspend_mode = TEGRA_SUSPEND_LP1;
457 }
458
459 int __init enterprise_suspend_init(void)
460 {
461         enterprise_init_deep_sleep_mode();
462         tegra_init_suspend(&enterprise_suspend_data);
463         return 0;
464 }
465
466 #ifdef CONFIG_TEGRA_EDP_LIMITS
467
468 int __init enterprise_edp_init(void)
469 {
470         tegra_init_cpu_edp_limits(2500); /* 2.5A regulator */
471         return 0;
472 }
473 #endif