arm: tegra: sh532u focuser board support
[linux-2.6.git] / arch / arm / mach-tegra / board-ventana-power.c
1 /*
2  * Copyright (C) 2010-2012 NVIDIA, Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write to the Free Software
15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
16  * 02111-1307, USA
17  */
18 #include <linux/i2c.h>
19 #include <linux/pda_power.h>
20 #include <linux/platform_device.h>
21 #include <linux/resource.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/mfd/tps6586x.h>
24 #include <linux/gpio.h>
25 #include <linux/io.h>
26 #include <linux/power/gpio-charger.h>
27 #include <linux/regulator/fixed.h>
28
29 #include <mach/iomap.h>
30 #include <mach/irqs.h>
31
32 #include <generated/mach-types.h>
33
34 #include "gpio-names.h"
35 #include "fuse.h"
36 #include "pm.h"
37 #include "wakeups-t2.h"
38 #include "board.h"
39 #include "board-ventana.h"
40
41 #define PMC_CTRL                0x0
42 #define PMC_CTRL_INTR_LOW       (1 << 17)
43
44 #define CHARGING_DISABLE        TEGRA_GPIO_PR6
45
46 int __init ventana_charge_init(void)
47 {
48         gpio_request(CHARGING_DISABLE, "chg_disable");
49         gpio_direction_output(CHARGING_DISABLE, 0);
50         tegra_gpio_enable(CHARGING_DISABLE);
51         return 0;
52 }
53
54 static struct regulator_consumer_supply tps658621_sm0_supply[] = {
55         REGULATOR_SUPPLY("vdd_core", NULL),
56 };
57 static struct regulator_consumer_supply tps658621_sm1_supply[] = {
58         REGULATOR_SUPPLY("vdd_cpu", NULL),
59 };
60 static struct regulator_consumer_supply tps658621_sm2_supply[] = {
61         REGULATOR_SUPPLY("vdd_sm2", NULL),
62 };
63 static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
64         REGULATOR_SUPPLY("vdd_ldo0", NULL),
65         REGULATOR_SUPPLY("p_cam_avdd", NULL),
66 };
67 static struct regulator_consumer_supply tps658621_ldo1_supply[] = {
68         REGULATOR_SUPPLY("vdd_ldo1", NULL),
69         REGULATOR_SUPPLY("avdd_pll", NULL),
70 };
71 static struct regulator_consumer_supply tps658621_ldo2_supply[] = {
72         REGULATOR_SUPPLY("vdd_ldo2", NULL),
73         REGULATOR_SUPPLY("vdd_rtc", NULL),
74         REGULATOR_SUPPLY("vdd_aon", NULL),
75 };
76 static struct regulator_consumer_supply tps658621_ldo3_supply[] = {
77         REGULATOR_SUPPLY("vdd_ldo3", NULL),
78         REGULATOR_SUPPLY("avdd_usb", NULL),
79         REGULATOR_SUPPLY("avdd_usb_pll", NULL),
80 };
81 static struct regulator_consumer_supply tps658621_ldo4_supply[] = {
82         REGULATOR_SUPPLY("vdd_ldo4", NULL),
83         REGULATOR_SUPPLY("avdd_osc", NULL),
84         REGULATOR_SUPPLY("vddio_sys", "panjit_touch"),
85 };
86 static struct regulator_consumer_supply tps658621_ldo5_supply[] = {
87         REGULATOR_SUPPLY("vdd_ldo5", NULL),
88         REGULATOR_SUPPLY("vmmc", "sdhci-tegra.3"),
89 };
90 static struct regulator_consumer_supply tps658621_ldo6_supply[] = {
91         REGULATOR_SUPPLY("vdd_ldo6", NULL),
92         REGULATOR_SUPPLY("vcsi", "tegra_camera"),
93         REGULATOR_SUPPLY("vdd_dmic", "tegra-snd-wm8903.0"),
94         REGULATOR_SUPPLY("vdd_i2c", "3-0030"),
95         REGULATOR_SUPPLY("dvdd", "6-0072"),
96         REGULATOR_SUPPLY("dvdd", "7-0072"),
97 };
98 static struct regulator_consumer_supply tps658621_ldo7_supply[] = {
99         REGULATOR_SUPPLY("vdd_ldo7", NULL),
100         REGULATOR_SUPPLY("avdd_hdmi", NULL),
101         REGULATOR_SUPPLY("vdd_fuse", NULL),
102 };
103 static struct regulator_consumer_supply tps658621_ldo8_supply[] = {
104         REGULATOR_SUPPLY("vdd_ldo8", NULL),
105         REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
106 };
107 static struct regulator_consumer_supply tps658621_ldo9_supply[] = {
108         REGULATOR_SUPPLY("vdd_ldo9", NULL),
109         REGULATOR_SUPPLY("avdd_2v85", NULL),
110         REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
111         REGULATOR_SUPPLY("vdd_spk_amp", "tegra-snd-wm8903.0"),
112 };
113
114 static struct tps6586x_settings sm0_config = {
115         .sm_pwm_mode = PWM_DEFAULT_VALUE,
116         .slew_rate = SLEW_RATE_3520UV_PER_SEC,
117 };
118
119 static struct tps6586x_settings sm1_config = {
120         /*
121          * Current TPS6586x is known for having a voltage glitch if current load
122          * changes from low to high in auto PWM/PFM mode for CPU's Vdd line.
123          */
124         .sm_pwm_mode = PWM_ONLY,
125         .slew_rate = SLEW_RATE_3520UV_PER_SEC,
126 };
127
128 #define REGULATOR_INIT(_id, _minmv, _maxmv, on, config)                 \
129         {                                                               \
130                 .constraints = {                                        \
131                         .min_uV = (_minmv)*1000,                        \
132                         .max_uV = (_maxmv)*1000,                        \
133                         .valid_modes_mask = (REGULATOR_MODE_NORMAL |    \
134                                              REGULATOR_MODE_STANDBY),   \
135                         .valid_ops_mask = (REGULATOR_CHANGE_MODE |      \
136                                            REGULATOR_CHANGE_STATUS |    \
137                                            REGULATOR_CHANGE_VOLTAGE),   \
138                         .always_on = on,                                \
139                         .apply_uV = 1,                                  \
140                 },                                                      \
141                 .num_consumer_supplies = ARRAY_SIZE(tps658621_##_id##_supply),\
142                 .consumer_supplies = tps658621_##_id##_supply,          \
143                 .driver_data = config,                                  \
144         }
145
146 #define ON      1
147 #define OFF     0
148
149 static struct regulator_init_data sm0_data = REGULATOR_INIT(sm0, 725, 1500, ON, &sm0_config);
150 static struct regulator_init_data sm1_data = REGULATOR_INIT(sm1, 725, 1500, ON, &sm1_config);
151 static struct regulator_init_data sm2_data = REGULATOR_INIT(sm2, 3000, 4550, ON, NULL);
152 static struct regulator_init_data ldo0_data = REGULATOR_INIT(ldo0, 1250, 3300, OFF, NULL);
153 static struct regulator_init_data ldo1_data = REGULATOR_INIT(ldo1, 725, 1500, ON, NULL);
154 static struct regulator_init_data ldo2_data = REGULATOR_INIT(ldo2, 725, 1500, OFF, NULL);
155 static struct regulator_init_data ldo3_data = REGULATOR_INIT(ldo3, 1250, 3300, OFF, NULL);
156 static struct regulator_init_data ldo4_data = REGULATOR_INIT(ldo4, 1700, 2475, ON, NULL);
157 static struct regulator_init_data ldo5_data = REGULATOR_INIT(ldo5, 1250, 3300, ON, NULL);
158 static struct regulator_init_data ldo6_data = REGULATOR_INIT(ldo6, 1800, 1800, OFF, NULL);
159 static struct regulator_init_data ldo7_data = REGULATOR_INIT(ldo7, 1250, 3300, OFF, NULL);
160 static struct regulator_init_data ldo8_data = REGULATOR_INIT(ldo8, 1250, 3300, OFF, NULL);
161 static struct regulator_init_data ldo9_data = REGULATOR_INIT(ldo9, 1250, 3300, ON, NULL);
162
163 static struct tps6586x_rtc_platform_data rtc_data = {
164         .irq = TEGRA_NR_IRQS + TPS6586X_INT_RTC_ALM1,
165         .start = {
166                 .year = 2009,
167                 .month = 1,
168                 .day = 1,
169         },
170         .cl_sel = TPS6586X_RTC_CL_SEL_1_5PF /* use lowest (external 20pF cap) */
171 };
172
173 #define TPS_REG(_id, _data)                     \
174         {                                       \
175                 .id = TPS6586X_ID_##_id,        \
176                 .name = "tps6586x-regulator",   \
177                 .platform_data = _data,         \
178         }
179
180 static struct tps6586x_subdev_info tps_devs[] = {
181         TPS_REG(SM_0, &sm0_data),
182         TPS_REG(SM_1, &sm1_data),
183         TPS_REG(SM_2, &sm2_data),
184         TPS_REG(LDO_0, &ldo0_data),
185         TPS_REG(LDO_1, &ldo1_data),
186         TPS_REG(LDO_2, &ldo2_data),
187         TPS_REG(LDO_3, &ldo3_data),
188         TPS_REG(LDO_4, &ldo4_data),
189         TPS_REG(LDO_5, &ldo5_data),
190         TPS_REG(LDO_6, &ldo6_data),
191         TPS_REG(LDO_7, &ldo7_data),
192         TPS_REG(LDO_8, &ldo8_data),
193         TPS_REG(LDO_9, &ldo9_data),
194         {
195                 .id     = 0,
196                 .name   = "tps6586x-rtc",
197                 .platform_data = &rtc_data,
198         },
199 };
200
201 static struct tps6586x_platform_data tps_platform = {
202         .irq_base = TPS6586X_INT_BASE,
203         .num_subdevs = ARRAY_SIZE(tps_devs),
204         .subdevs = tps_devs,
205         .gpio_base = TPS6586X_GPIO_BASE,
206         .use_power_off = true,
207 };
208
209 static struct i2c_board_info __initdata ventana_regulators[] = {
210         {
211                 I2C_BOARD_INFO("tps6586x", 0x34),
212                 .irq            = INT_EXTERNAL_PMU,
213                 .platform_data  = &tps_platform,
214         },
215 };
216
217 static void ventana_board_suspend(int lp_state, enum suspend_stage stg)
218 {
219         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
220                 tegra_console_uart_suspend();
221 }
222
223 static void ventana_board_resume(int lp_state, enum resume_stage stg)
224 {
225         if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
226                 tegra_console_uart_resume();
227 }
228
229 static struct tegra_suspend_platform_data ventana_suspend_data = {
230         /*
231          * Check power on time and crystal oscillator start time
232          * for appropriate settings.
233          */
234         .cpu_timer      = 2000,
235         .cpu_off_timer  = 100,
236         .suspend_mode   = TEGRA_SUSPEND_LP0,
237         .core_timer     = 0x7e7e,
238         .core_off_timer = 0xf,
239         .corereq_high   = false,
240         .sysclkreq_high = true,
241         .board_suspend = ventana_board_suspend,
242         .board_resume = ventana_board_resume,
243 };
244
245 static struct regulator_consumer_supply pnl_pwr_consumer_supply[] = {
246         REGULATOR_SUPPLY("pnl_pwr", NULL),
247 };
248
249 FIXED_VOLTAGE_REG_INIT(2, pnl_pwr, 2800000, PANEL_POWER_EN_GPIO,
250                                 0, 1, 0, REGULATOR_CHANGE_STATUS, 0);
251
252 static struct platform_device *fixed_voltage_regulators[] __initdata = {
253         ADD_FIXED_VOLTAGE_REG(pnl_pwr),
254 };
255
256 int __init ventana_fixed_voltage_regulator_init(void)
257 {
258         int i;
259
260         for (i = 0; i < ARRAY_SIZE(fixed_voltage_regulators); ++i) {
261                 struct fixed_voltage_config *fixed_voltage_regulators_pdata =
262                                 fixed_voltage_regulators[i]->dev.platform_data;
263                 if (fixed_voltage_regulators_pdata->gpio < TEGRA_NR_GPIOS)
264                         tegra_gpio_enable(fixed_voltage_regulators_pdata->gpio);
265         }
266         return platform_add_devices(fixed_voltage_regulators,
267                                 ARRAY_SIZE(fixed_voltage_regulators));
268 }
269
270 int __init ventana_regulator_init(void)
271 {
272         void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
273         void __iomem *chip_id = IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804;
274         u32 pmc_ctrl;
275         u32 minor;
276
277         minor = (readl(chip_id) >> 16) & 0xf;
278         /* A03 (but not A03p) chips do not support LP0 */
279         if (minor == 3 && !(tegra_spare_fuse(18) || tegra_spare_fuse(19)))
280                 ventana_suspend_data.suspend_mode = TEGRA_SUSPEND_LP1;
281
282         /* configure the power management controller to trigger PMU
283          * interrupts when low */
284         pmc_ctrl = readl(pmc + PMC_CTRL);
285         writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
286
287         i2c_register_board_info(4, ventana_regulators, 1);
288
289 //      regulator_has_full_constraints();
290
291         tegra_init_suspend(&ventana_suspend_data);
292
293         ventana_fixed_voltage_regulator_init();
294
295         return 0;
296 }
297
298 static char *ventana_battery[] = {
299         "battery",
300 };
301
302 static struct gpio_charger_platform_data ventana_charger_pdata = {
303         .name = "ac",
304         .type = POWER_SUPPLY_TYPE_MAINS,
305         .gpio = AC_PRESENT_GPIO,
306         .gpio_active_low = 1,
307         .supplied_to = ventana_battery,
308         .num_supplicants = ARRAY_SIZE(ventana_battery),
309 };
310
311 static struct platform_device ventana_charger_device = {
312         .name = "gpio-charger",
313         .dev = {
314                 .platform_data = &ventana_charger_pdata,
315         },
316 };
317
318 int __init ventana_charger_init(void)
319 {
320         tegra_gpio_enable(AC_PRESENT_GPIO);
321         platform_device_register(&ventana_charger_device);
322         return 0;
323 }
324
325 static int __init ventana_pcie_init(void)
326 {
327         int ret;
328
329         if (!machine_is_ventana())
330                 return 0;
331
332         ret = gpio_request(TPS6586X_GPIO_BASE, "pcie_vdd");
333         if (ret < 0)
334                 goto fail;
335
336         ret = gpio_direction_output(TPS6586X_GPIO_BASE, 1);
337         if (ret < 0)
338                 goto fail;
339
340         gpio_export(TPS6586X_GPIO_BASE, false);
341         return 0;
342
343 fail:
344         pr_err("%s: gpio_request failed #%d\n", __func__, TPS6586X_GPIO_BASE);
345         gpio_free(TPS6586X_GPIO_BASE);
346         return ret;
347 }
348
349 static struct regulator_consumer_supply cam1_2v8_consumer_supply[] = {
350         REGULATOR_SUPPLY("cam1_2v8", NULL),
351 };
352
353 static struct regulator_consumer_supply cam2_2v8_consumer_supply[] = {
354         REGULATOR_SUPPLY("cam2_2v8", NULL),
355 };
356
357 FIXED_VOLTAGE_REG_INIT(0, cam1_2v8, 2800000, CAM1_LDO_SHUTDN_L_GPIO,
358                                 0, 1, 0, REGULATOR_CHANGE_STATUS, 0);
359 FIXED_VOLTAGE_REG_INIT(1, cam2_2v8, 2800000, CAM2_LDO_SHUTDN_L_GPIO,
360                                 0, 1, 0, REGULATOR_CHANGE_STATUS, 0);
361
362 static struct platform_device *cam_fixed_voltage_regulators[] __initdata = {
363         ADD_FIXED_VOLTAGE_REG(cam1_2v8),
364         ADD_FIXED_VOLTAGE_REG(cam2_2v8),
365 };
366
367 int __init ventana_cam_fixed_voltage_regulator_init(void)
368 {
369         return platform_add_devices(cam_fixed_voltage_regulators,
370                                 ARRAY_SIZE(cam_fixed_voltage_regulators));
371 }
372
373 late_initcall(ventana_pcie_init);