ARM: tegra: enterprise: Add IO power detection consumers
[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/iomap.h>
32 #include <mach/irqs.h>
33 #include <mach/pinmux.h>
34
35 #include "gpio-names.h"
36 #include "board-enterprise.h"
37 #include "pm.h"
38 #include "wakeups-t3.h"
39
40 #define PMC_CTRL                0x0
41 #define PMC_CTRL_INTR_LOW       (1 << 17)
42
43 /************************ TPS80031 based regulator ****************/
44 static struct regulator_consumer_supply tps80031_vio_supply[] = {
45         REGULATOR_SUPPLY("vio_1v8", NULL),
46         REGULATOR_SUPPLY("avdd_osc", NULL),
47         REGULATOR_SUPPLY("vddio_sys", NULL),
48         REGULATOR_SUPPLY("vddio_uart", NULL),
49         REGULATOR_SUPPLY("pwrdet_uart", NULL),
50         REGULATOR_SUPPLY("vddio_lcd", NULL),
51         REGULATOR_SUPPLY("pwrdet_lcd", NULL),
52         REGULATOR_SUPPLY("vddio_audio", NULL),
53         REGULATOR_SUPPLY("pwrdet_audio", NULL),
54         REGULATOR_SUPPLY("vddio_bb", NULL),
55         REGULATOR_SUPPLY("pwrdet_bb", NULL),
56         REGULATOR_SUPPLY("vddio_gmi", NULL),
57         REGULATOR_SUPPLY("avdd_usb_pll", NULL),
58         REGULATOR_SUPPLY("vddio_cam", NULL),
59         REGULATOR_SUPPLY("pwrdet_cam", NULL),
60         REGULATOR_SUPPLY("vddio_sdmmc1", NULL),
61         REGULATOR_SUPPLY("pwrdet_sdmmc1", NULL),
62         REGULATOR_SUPPLY("vddio_sdmmc4", NULL),
63         REGULATOR_SUPPLY("pwrdet_sdmmc4", NULL),
64         REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
65         REGULATOR_SUPPLY("vddio_gps", NULL),
66         REGULATOR_SUPPLY("vdd_lcd_buffered", NULL),
67         REGULATOR_SUPPLY("vddio_nand", NULL),
68         REGULATOR_SUPPLY("pwrdet_nand", NULL),
69         REGULATOR_SUPPLY("vddio_sd", NULL),
70         REGULATOR_SUPPLY("vdd_bat", NULL),
71         REGULATOR_SUPPLY("vdd_io", NULL),
72         REGULATOR_SUPPLY("pwrdet_pex_ctl", NULL),
73 };
74
75 static struct regulator_consumer_supply tps80031_smps1_supply[] = {
76         REGULATOR_SUPPLY("vdd_cpu", NULL),
77 };
78
79 static struct regulator_consumer_supply tps80031_smps2_supply[] = {
80         REGULATOR_SUPPLY("vdd_core", NULL),
81 };
82
83 static struct regulator_consumer_supply tps80031_smps3_supply[] = {
84         REGULATOR_SUPPLY("en_vddio_ddr_1v2", NULL),
85         REGULATOR_SUPPLY("vddio_ddr", NULL),
86         REGULATOR_SUPPLY("vdd_lpddr", NULL),
87         REGULATOR_SUPPLY("ddr_comp_pu", NULL),
88 };
89
90 static struct regulator_consumer_supply tps80031_smps4_supply[] = {
91         REGULATOR_SUPPLY("vddio_sdmmc_2v85", NULL),
92         REGULATOR_SUPPLY("pwrdet_sdmmc3", NULL),
93 };
94
95 static struct regulator_consumer_supply tps80031_vana_supply[] = {
96         REGULATOR_SUPPLY("unused_vana", NULL),
97 };
98
99 static struct regulator_consumer_supply tps80031_ldo1_supply[] = {
100         REGULATOR_SUPPLY("avdd_dsi_csi", NULL),
101         REGULATOR_SUPPLY("pwrdet_mipi", NULL),
102 };
103
104 static struct regulator_consumer_supply tps80031_ldo2_supply[] = {
105         REGULATOR_SUPPLY("vdd_rtc", NULL),
106 };
107
108 static struct regulator_consumer_supply tps80031_ldo3_supply[] = {
109         REGULATOR_SUPPLY("vdd_vbrtr", NULL),
110 };
111
112 static struct regulator_consumer_supply tps80031_ldo4_supply[] = {
113         REGULATOR_SUPPLY("avdd_lcd", NULL),
114 };
115
116 static struct regulator_consumer_supply tps80031_ldo5_supply[] = {
117         REGULATOR_SUPPLY("vdd_sensor", NULL),
118         REGULATOR_SUPPLY("vdd_compass", NULL),
119         REGULATOR_SUPPLY("vdd_als", NULL),
120         REGULATOR_SUPPLY("vdd_gyro", NULL),
121         REGULATOR_SUPPLY("vdd_touch", NULL),
122         REGULATOR_SUPPLY("vdd_proxim_diode", NULL),
123 };
124
125 static struct regulator_consumer_supply tps80031_ldo6_supply[] = {
126         REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
127         REGULATOR_SUPPLY("vddf_core_emmc", NULL),
128 };
129
130 static struct regulator_consumer_supply tps80031_ldo7_supply[] = {
131         REGULATOR_SUPPLY("vdd_plla_p_c_s", NULL),
132         REGULATOR_SUPPLY("vdd_pllm", NULL),
133         REGULATOR_SUPPLY("vdd_pllu_d", NULL),
134         REGULATOR_SUPPLY("vdd_pllx", NULL),
135 };
136
137 static struct regulator_consumer_supply tps80031_ldoln_supply[] = {
138         REGULATOR_SUPPLY("vdd_ddr_hs", NULL),
139 };
140
141 static struct regulator_consumer_supply tps80031_ldousb_supply[] = {
142         REGULATOR_SUPPLY("unused_ldousb", NULL),
143 };
144
145 static struct regulator_consumer_supply tps80031_vbus_supply[] = {
146         REGULATOR_SUPPLY("usb_vbus", NULL),
147 };
148
149 #define TPS_PDATA_INIT(_id, _minmv, _maxmv, _supply_reg, _always_on,    \
150         _boot_on, _apply_uv, _init_uV, _init_enable, _init_apply, _flags) \
151         static struct tps80031_regulator_platform_data pdata_##_id = {  \
152                 .regulator = {                                          \
153                         .constraints = {                                \
154                                 .min_uV = (_minmv)*1000,                \
155                                 .max_uV = (_maxmv)*1000,                \
156                                 .valid_modes_mask = (REGULATOR_MODE_NORMAL |  \
157                                                 REGULATOR_MODE_STANDBY),      \
158                                 .valid_ops_mask = (REGULATOR_CHANGE_MODE |    \
159                                                 REGULATOR_CHANGE_STATUS |     \
160                                                 REGULATOR_CHANGE_VOLTAGE),    \
161                                 .always_on = _always_on,                \
162                                 .boot_on = _boot_on,                    \
163                                 .apply_uV = _apply_uv,                  \
164                         },                                              \
165                         .num_consumer_supplies =                        \
166                                 ARRAY_SIZE(tps80031_##_id##_supply),    \
167                         .consumer_supplies = tps80031_##_id##_supply,   \
168                         .supply_regulator = _supply_reg,                \
169                 },                                                      \
170                 .init_uV =  _init_uV * 1000,                            \
171                 .init_enable = _init_enable,                            \
172                 .init_apply = _init_apply,                              \
173                 .flags = _flags,                                        \
174         }
175
176 TPS_PDATA_INIT(vio,   600, 2100, 0, 1, 0, 0, -1, 0, 0, 0);
177 TPS_PDATA_INIT(smps1, 600, 2100, 0, 0, 0, 0, -1, 0, 0, PWR_REQ_INPUT_PREQ2);
178 TPS_PDATA_INIT(smps2, 600, 2100, 0, 0, 0, 0, -1, 0, 0, 0);
179 TPS_PDATA_INIT(smps3, 600, 2100, 0, 1, 0, 0, -1, 0, 0, 0);
180 TPS_PDATA_INIT(smps4, 600, 2100, 0, 0, 0, 0, -1, 0, 0, 0);
181
182 TPS_PDATA_INIT(ldo1, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0);
183 TPS_PDATA_INIT(ldo2, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
184 TPS_PDATA_INIT(ldo3, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0);
185 TPS_PDATA_INIT(ldo4, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
186 TPS_PDATA_INIT(ldo5, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
187 TPS_PDATA_INIT(ldo6, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
188 TPS_PDATA_INIT(ldo7, 1000, 3300, tps80031_rails(VIO), 0, 0, 0, -1, 0, 0, 0);
189 TPS_PDATA_INIT(ldoln, 1000, 3300, tps80031_rails(SMPS3), 0, 0, 0, -1, 0, 0, 0);
190 TPS_PDATA_INIT(ldousb, 1000, 3300, 0, 0, 0, 0, -1, 0, 0, USBLDO_INPUT_VSYS);
191 TPS_PDATA_INIT(vana,  1000, 3300, 0, 0, 0, 0, -1, 0, 0, 0);
192 TPS_PDATA_INIT(vbus,  0, 5000, 0, 0, 0, 0, -1, 0, 0, VBUS_SW_ONLY);
193
194 static struct tps80031_rtc_platform_data rtc_data = {
195         .irq = ENT_TPS80031_IRQ_BASE + TPS80031_INT_RTC_ALARM,
196         .time = {
197                 .tm_year = 2011,
198                 .tm_mon = 0,
199                 .tm_mday = 1,
200                 .tm_hour = 1,
201                 .tm_min = 2,
202                 .tm_sec = 3,
203         },
204 };
205
206 #define TPS_RTC()                               \
207         {                                               \
208                 .id     = 0,            \
209                 .name   = "rtc_tps80031",       \
210                 .platform_data = &rtc_data,     \
211         }
212
213 #define TPS_REG(_id, _data)                             \
214         {                                               \
215                 .id      = TPS80031_ID_##_id,           \
216                 .name   = "tps80031-regulator",         \
217                 .platform_data  = &pdata_##_data,       \
218         }
219
220 static struct tps80031_subdev_info tps80031_devs[] = {
221         TPS_REG(VIO, vio),
222         TPS_REG(SMPS1, smps1),
223         TPS_REG(SMPS2, smps2),
224         TPS_REG(SMPS3, smps3),
225         TPS_REG(SMPS4, smps4),
226         TPS_REG(LDO1, ldo1),
227         TPS_REG(LDO2, ldo2),
228         TPS_REG(LDO3, ldo3),
229         TPS_REG(LDO4, ldo4),
230         TPS_REG(LDO5, ldo5),
231         TPS_REG(LDO6, ldo6),
232         TPS_REG(LDO7, ldo7),
233         TPS_REG(LDOLN, ldoln),
234         TPS_REG(LDOUSB, ldousb),
235         TPS_REG(VANA, vana),
236         TPS_REG(VBUS, vbus),
237         TPS_RTC(),
238 };
239
240 struct tps80031_32kclock_plat_data clk32k_pdata = {
241         .en_clk32kg = 1,
242 };
243 static struct tps80031_platform_data tps_platform = {
244         .num_subdevs    = ARRAY_SIZE(tps80031_devs),
245         .subdevs        = tps80031_devs,
246         .irq_base       = ENT_TPS80031_IRQ_BASE,
247         .gpio_base      = ENT_TPS80031_GPIO_BASE,
248         .clk32k_pdata   = &clk32k_pdata,
249 };
250
251 static struct i2c_board_info __initdata enterprise_regulators[] = {
252         {
253                 I2C_BOARD_INFO("tps80031", 0x48),
254                 .irq            = INT_EXTERNAL_PMU,
255                 .platform_data  = &tps_platform,
256         },
257 };
258
259 /************************ GPIO based switch regulator ****************/
260
261 /* REGEN1 from PMU*/
262 static struct regulator_consumer_supply gpio_switch_pmu_5v15_en_supply[] = {
263         REGULATOR_SUPPLY("vdd_5v15", NULL),
264 };
265 static int gpio_switch_pmu_5v15_en_voltages[] = {5000};
266
267 /* REGEN2 from PMU*/
268 static struct regulator_consumer_supply gpio_switch_pmu_3v3_en_supply[] = {
269         REGULATOR_SUPPLY("avdd_usb_hdmi_3v3", NULL),
270         REGULATOR_SUPPLY("avdd_usb", NULL),
271         REGULATOR_SUPPLY("avdd_hdmi", NULL),
272         REGULATOR_SUPPLY("vdd_nct1008", NULL),
273 };
274 static int gpio_switch_pmu_3v3_en_voltages[] = {3300};
275
276 /* SYSEN from PMU*/
277 static struct regulator_consumer_supply gpio_switch_pmu_hdmi_5v0_en_supply[] = {
278         REGULATOR_SUPPLY("hdmi_5v0", NULL),
279 };
280 static int gpio_switch_pmu_hdmi_5v0_en_voltages[] = {5000};
281
282 /* LCD-D16 (GPIO M0) from T30*/
283 static struct regulator_consumer_supply gpio_switch_vdd_fuse_en_supply[] = {
284         REGULATOR_SUPPLY("vpp_fuse", NULL),
285 };
286 static int gpio_switch_vdd_fuse_en_voltages[] = {3300};
287
288 /* LCD-D17 (GPIO M1) from T30*/
289 static struct regulator_consumer_supply gpio_switch_sdmmc3_vdd_sel_supply[] = {
290         REGULATOR_SUPPLY("vddio_sdmmc3_2v85_1v8", NULL),
291         REGULATOR_SUPPLY("sdmmc3_compu_pu", NULL),
292         REGULATOR_SUPPLY("vddio_sdmmc3", NULL),
293         REGULATOR_SUPPLY("vsys_3v7", NULL),
294 };
295 static int gpio_switch_sdmmc3_vdd_sel_voltages[] = {2850};
296
297 /* LCD-D23 (GPIO M7) from T30*/
298 /* 2-0036 is dev_name of ar0832 */
299 /* 2-0010 is dev_name of ov9726 */
300 static struct regulator_consumer_supply gpio_switch_cam_ldo_2v8_en_supply[] = {
301         REGULATOR_SUPPLY("vaa", "2-0036"),
302         REGULATOR_SUPPLY("vaa", "2-0032"),
303         REGULATOR_SUPPLY("avdd", "2-0010"),
304         REGULATOR_SUPPLY("vdd_2v8_cam", NULL),
305 };
306 static int gpio_switch_cam_ldo_2v8_en_voltages[] = {2800};
307
308 /* LCD-D9 (GPIO F1) from T30*/
309 /* 2-0036 is dev_name of ar0832 */
310 /* 2-0010 is dev_name of ov9726 */
311 static struct regulator_consumer_supply gpio_switch_cam_ldo_1v8_en_supply[] = {
312         REGULATOR_SUPPLY("vdd", "2-0036"),
313         REGULATOR_SUPPLY("vdd", "2-0032"),
314         REGULATOR_SUPPLY("dovdd", "2-0010"),
315         REGULATOR_SUPPLY("vdd_1v8_cam", NULL),
316 };
317 static int gpio_switch_cam_ldo_1v8_en_voltages[] = {1800};
318
319 /* Macro for defining gpio switch regulator sub device data */
320 #define GREG_INIT(_id, _name, _input_supply, _gpio_nr, _active_low, \
321                         _init_state, _pg, _enable, _disable)            \
322         static struct gpio_switch_regulator_subdev_data gpio_pdata_##_name =  \
323         {                                                               \
324                 .regulator_name = "gpio-switch-"#_name,                 \
325                 .input_supply   = _input_supply,                        \
326                 .id             = _id,                                  \
327                 .gpio_nr        = _gpio_nr,                             \
328                 .pin_group      = _pg,                                  \
329                 .active_low     = _active_low,                          \
330                 .init_state     = _init_state,                          \
331                 .voltages       = gpio_switch_##_name##_voltages,       \
332                 .n_voltages     = ARRAY_SIZE(gpio_switch_##_name##_voltages), \
333                 .num_consumer_supplies =                                \
334                                 ARRAY_SIZE(gpio_switch_##_name##_supply), \
335                 .consumer_supplies = gpio_switch_##_name##_supply,      \
336                 .constraints = {                                        \
337                         .valid_modes_mask = (REGULATOR_MODE_NORMAL |    \
338                                         REGULATOR_MODE_STANDBY),        \
339                         .valid_ops_mask = (REGULATOR_CHANGE_MODE |      \
340                                         REGULATOR_CHANGE_STATUS |       \
341                                         REGULATOR_CHANGE_VOLTAGE),      \
342                 },                                                      \
343                 .enable_rail = _enable,                                 \
344                 .disable_rail = _disable,                               \
345         }
346
347 GREG_INIT(0, pmu_5v15_en,     NULL,      ENT_TPS80031_GPIO_REGEN1, false, 0, 0, 0, 0);
348 GREG_INIT(1, pmu_3v3_en,      "vdd_5v15", ENT_TPS80031_GPIO_REGEN2, false, 0, 0, 0, 0);
349 GREG_INIT(2, pmu_hdmi_5v0_en, "vdd_5v15", ENT_TPS80031_GPIO_SYSEN, false, 0, 0, 0, 0);
350
351 GREG_INIT(3, vdd_fuse_en, "avdd_usb_hdmi_3v3", TEGRA_GPIO_PM0, false, 0, 0, 0, 0);
352 GREG_INIT(4, sdmmc3_vdd_sel, "vddio_sdmmc_2v85", TEGRA_GPIO_PM1, false, 0, 0, 0, 0);
353 GREG_INIT(5, cam_ldo_2v8_en, NULL, TEGRA_GPIO_PM7, false, 0, 0, 0, 0);
354 GREG_INIT(6, cam_ldo_1v8_en, NULL, TEGRA_GPIO_PF1, false, 0, 0, 0, 0);
355
356 #define ADD_GPIO_REG(_name)     (&gpio_pdata_##_name)
357 static struct gpio_switch_regulator_subdev_data *gswitch_subdevs[] = {
358         ADD_GPIO_REG(pmu_5v15_en),
359         ADD_GPIO_REG(pmu_3v3_en),
360         ADD_GPIO_REG(pmu_hdmi_5v0_en),
361         ADD_GPIO_REG(vdd_fuse_en),
362         ADD_GPIO_REG(sdmmc3_vdd_sel),
363         ADD_GPIO_REG(cam_ldo_2v8_en),
364         ADD_GPIO_REG(cam_ldo_1v8_en),
365 };
366
367 static struct gpio_switch_regulator_platform_data  gswitch_pdata = {
368         .num_subdevs = ARRAY_SIZE(gswitch_subdevs),
369         .subdevs = gswitch_subdevs,
370 };
371
372 static struct platform_device gswitch_regulator_pdata = {
373         .name   = "gpio-switch-regulator",
374         .id     = -1,
375         .dev    = {
376                 .platform_data = &gswitch_pdata,
377         },
378 };
379
380 static int __init enterprise_gpio_switch_regulator_init(void)
381 {
382         int i;
383         for (i = 0; i < gswitch_pdata.num_subdevs; ++i) {
384                 struct gpio_switch_regulator_subdev_data *gswitch_data =
385                                                 gswitch_pdata.subdevs[i];
386                 if (gswitch_data->gpio_nr <= TEGRA_NR_GPIOS)
387                         tegra_gpio_enable(gswitch_data->gpio_nr);
388         }
389         return platform_device_register(&gswitch_regulator_pdata);
390 }
391
392 static void enterprise_power_off(void)
393 {
394         int ret;
395         pr_info("enterprise: Powering off the device\n");
396         ret = tps80031_power_off();
397         if (ret)
398                 pr_err("enterprise: failed to power off\n");
399         while(1);
400 }
401
402 int __init enterprise_regulator_init(void)
403 {
404         void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
405         u32 pmc_ctrl;
406
407         /* configure the power management controller to trigger PMU
408          * interrupts when low */
409
410         pmc_ctrl = readl(pmc + PMC_CTRL);
411         writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
412
413         i2c_register_board_info(4, enterprise_regulators, 1);
414         enterprise_gpio_switch_regulator_init();
415         pm_power_off = enterprise_power_off;
416         return 0;
417 }
418
419 static void enterprise_board_suspend(int lp_state, enum suspend_stage stg)
420 {
421         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
422                 tegra_console_uart_suspend();
423 }
424
425 static void enterprise_board_resume(int lp_state, enum resume_stage stg)
426 {
427         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
428                 tegra_console_uart_resume();
429 }
430
431 static struct tegra_suspend_platform_data enterprise_suspend_data = {
432         .cpu_timer      = 2000,
433         .cpu_off_timer  = 200,
434         .suspend_mode   = TEGRA_SUSPEND_LP1,
435         .core_timer     = 0x7e7e,
436         .core_off_timer = 0,
437         .corereq_high   = true,
438         .sysclkreq_high = true,
439         .board_suspend = enterprise_board_suspend,
440         .board_resume = enterprise_board_resume,
441 };
442
443 int __init enterprise_suspend_init(void)
444 {
445         tegra_init_suspend(&enterprise_suspend_data);
446         return 0;
447 }