arch/arm/mach-tegra/board-ventana-power.c

   1 /*
   2  * Copyright (C) 2010 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 <mach/suspend.h>
  26 #include <linux/io.h>
  27
  28 #include <mach/iomap.h>
  29 #include <mach/irqs.h>
  30
  31 #include "gpio-names.h"
  32 #include "power.h"
  33 #include "wakeups-t2.h"
  34 #include "board.h"
  35
  36 #define PMC_CTRL                0x0
  37  #define PMC_CTRL_INTR_LOW      (1 << 17)
  38
  39 static int ac_ok                = TEGRA_GPIO_PV3;
  40 static int charge_disable       = TEGRA_GPIO_PR6;
  41
  42 static int charge_init(struct device *dev)
  43 {
  44         int ret = gpio_request(charge_disable, "chg_disable");
  45         if (ret < 0)
  46                 return ret;
  47
  48         ret = gpio_request(ac_ok, "ac_ok");
  49         if (ret < 0) {
  50                 gpio_free(charge_disable);
  51                 return ret;
  52         }
  53
  54         ret = gpio_direction_output(charge_disable, 0);
  55         if (ret < 0)
  56                 goto cleanup;
  57
  58         ret = gpio_direction_input(ac_ok);
  59         if (ret < 0)
  60                 goto cleanup;
  61
  62         tegra_gpio_enable(ac_ok);
  63         tegra_gpio_enable(charge_disable);
  64
  65         return 0;
  66
  67 cleanup:
  68         gpio_free(ac_ok);
  69         gpio_free(charge_disable);
  70         return ret;
  71 }
  72
  73 static void charge_exit(struct device *dev)
  74 {
  75         gpio_free(charge_disable);
  76 }
  77
  78 static int ac_online(void)
  79 {
  80         return !gpio_get_value(ac_ok);
  81 }
  82
  83 static void set_charge(int flags)
  84 {
  85         if (flags == PDA_POWER_CHARGE_AC)
  86                 gpio_set_value(charge_disable, 0);
  87         else if (!flags)
  88                 gpio_set_value(charge_disable, 1);
  89         /* USB charging not supported on Ventana */
  90 }
  91
  92 static struct resource ventana_pda_resources[] = {
  93         [0] = {
  94                 .name   = "ac",
  95                 .start  = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV3),
  96                 .end    = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV3),
  97                 .flags  = (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
  98                            IORESOURCE_IRQ_LOWEDGE),
  99         },
 100 };
 101
 102 static struct pda_power_pdata ventana_pda_data = {
 103         .is_ac_online   = ac_online,
 104         .exit           = charge_exit,
 105         .init           = charge_init,
 106         .set_charge     = set_charge,
 107 };
 108
 109 static struct platform_device ventana_pda_power_device = {
 110         .name           = "pda-power",
 111         .id             = -1,
 112         .resource       = ventana_pda_resources,
 113         .num_resources  = ARRAY_SIZE(ventana_pda_resources),
 114         .dev    = {
 115                 .platform_data  = &ventana_pda_data,
 116         },
 117 };
 118
 119
 120 static struct regulator_consumer_supply tps658621_sm0_supply[] = {
 121         REGULATOR_SUPPLY("vdd_core", NULL),
 122 };
 123 static struct regulator_consumer_supply tps658621_sm1_supply[] = {
 124         REGULATOR_SUPPLY("vdd_cpu", NULL),
 125 };
 126 static struct regulator_consumer_supply tps658621_sm2_supply[] = {
 127         REGULATOR_SUPPLY("vdd_sm2", NULL),
 128 };
 129 static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
 130         REGULATOR_SUPPLY("p_cam_avdd", NULL),
 131 };
 132 static struct regulator_consumer_supply tps658621_ldo1_supply[] = {
 133         REGULATOR_SUPPLY("avdd_pll", NULL),
 134 };
 135 static struct regulator_consumer_supply tps658621_ldo2_supply[] = {
 136         REGULATOR_SUPPLY("vdd_rtc", NULL),
 137 };
 138 static struct regulator_consumer_supply tps658621_ldo3_supply[] = {
 139         REGULATOR_SUPPLY("avdd_usb", NULL),
 140         REGULATOR_SUPPLY("avdd_usb_pll", NULL),
 141         REGULATOR_SUPPLY("avdd_lvds", NULL),
 142 };
 143 static struct regulator_consumer_supply tps658621_ldo4_supply[] = {
 144         REGULATOR_SUPPLY("avdd_osc", NULL),
 145         REGULATOR_SUPPLY("vddio_sys", "panjit_touch"),
 146 };
 147 static struct regulator_consumer_supply tps658621_ldo5_supply[] = {
 148         REGULATOR_SUPPLY("vcore_mmc", "sdhci-tegra.1"),
 149         REGULATOR_SUPPLY("vcore_mmc", "sdhci-tegra.3"),
 150 };
 151 static struct regulator_consumer_supply tps658621_ldo6_supply[] = {
 152         REGULATOR_SUPPLY("vddio_vi", NULL),
 153 };
 154 static struct regulator_consumer_supply tps658621_ldo7_supply[] = {
 155         REGULATOR_SUPPLY("avdd_hdmi", NULL),
 156         REGULATOR_SUPPLY("vdd_fuse", NULL),
 157 };
 158 static struct regulator_consumer_supply tps658621_ldo8_supply[] = {
 159         REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
 160 };
 161 static struct regulator_consumer_supply tps658621_ldo9_supply[] = {
 162         REGULATOR_SUPPLY("avdd_2v85", NULL),
 163         REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
 164         REGULATOR_SUPPLY("avdd_amp", NULL),
 165 };
 166
 167 #define REGULATOR_INIT(_id, _minmv, _maxmv)                             \
 168         {                                                               \
 169                 .constraints = {                                        \
 170                         .min_uV = (_minmv)*1000,                        \
 171                         .max_uV = (_maxmv)*1000,                        \
 172                         .valid_modes_mask = (REGULATOR_MODE_NORMAL |    \
 173                                              REGULATOR_MODE_STANDBY),   \
 174                         .valid_ops_mask = (REGULATOR_CHANGE_MODE |      \
 175                                            REGULATOR_CHANGE_STATUS |    \
 176                                            REGULATOR_CHANGE_VOLTAGE),   \
 177                 },                                                      \
 178                 .num_consumer_supplies = ARRAY_SIZE(tps658621_##_id##_supply),\
 179                 .consumer_supplies = tps658621_##_id##_supply,          \
 180         }
 181
 182 static struct regulator_init_data sm0_data = REGULATOR_INIT(sm0, 725, 1500);
 183 static struct regulator_init_data sm1_data = REGULATOR_INIT(sm1, 725, 1500);
 184 static struct regulator_init_data sm2_data = REGULATOR_INIT(sm2, 3000, 4550);
 185 static struct regulator_init_data ldo0_data = REGULATOR_INIT(ldo0, 1250, 3300);
 186 static struct regulator_init_data ldo1_data = REGULATOR_INIT(ldo1, 725, 1500);
 187 static struct regulator_init_data ldo2_data = REGULATOR_INIT(ldo2, 725, 1500);
 188 static struct regulator_init_data ldo3_data = REGULATOR_INIT(ldo3, 1250, 3300);
 189 static struct regulator_init_data ldo4_data = REGULATOR_INIT(ldo4, 1700, 2475);
 190 static struct regulator_init_data ldo5_data = REGULATOR_INIT(ldo5, 1250, 3300);
 191 static struct regulator_init_data ldo6_data = REGULATOR_INIT(ldo6, 1250, 3300);
 192 static struct regulator_init_data ldo7_data = REGULATOR_INIT(ldo7, 1250, 3300);
 193 static struct regulator_init_data ldo8_data = REGULATOR_INIT(ldo8, 1250, 3300);
 194 static struct regulator_init_data ldo9_data = REGULATOR_INIT(ldo9, 1250, 3300);
 195
 196 static struct tps6586x_rtc_platform_data rtc_data = {
 197         .irq = TEGRA_NR_IRQS + TPS6586X_INT_RTC_ALM1,
 198 };
 199
 200 #define TPS_REG(_id, _data)                     \
 201         {                                       \
 202                 .id = TPS6586X_ID_##_id,        \
 203                 .name = "tps6586x-regulator",   \
 204                 .platform_data = _data,         \
 205         }
 206
 207 static struct tps6586x_subdev_info tps_devs[] = {
 208         TPS_REG(SM_0, &sm0_data),
 209         TPS_REG(SM_1, &sm1_data),
 210         TPS_REG(SM_2, &sm2_data),
 211         TPS_REG(LDO_0, &ldo0_data),
 212         TPS_REG(LDO_1, &ldo1_data),
 213         TPS_REG(LDO_2, &ldo2_data),
 214         TPS_REG(LDO_3, &ldo3_data),
 215         TPS_REG(LDO_4, &ldo4_data),
 216         TPS_REG(LDO_5, &ldo5_data),
 217         TPS_REG(LDO_6, &ldo6_data),
 218         TPS_REG(LDO_7, &ldo7_data),
 219         TPS_REG(LDO_8, &ldo8_data),
 220         TPS_REG(LDO_9, &ldo9_data),
 221         {
 222                 .id     = 0,
 223                 .name   = "tps6586x-rtc",
 224                 .platform_data = &rtc_data,
 225         },
 226 };
 227
 228 static struct tps6586x_platform_data tps_platform = {
 229         .irq_base = TEGRA_NR_IRQS,
 230         .num_subdevs = ARRAY_SIZE(tps_devs),
 231         .subdevs = tps_devs,
 232         .gpio_base = TEGRA_NR_GPIOS,
 233 };
 234
 235 static struct i2c_board_info __initdata ventana_regulators[] = {
 236         {
 237                 I2C_BOARD_INFO("tps6586x", 0x34),
 238                 .irq            = INT_EXTERNAL_PMU,
 239                 .platform_data  = &tps_platform,
 240         },
 241 };
 242
 243 static struct tegra_suspend_platform_data ventana_suspend_data = {
 244         .cpu_timer      = 2000,
 245         .cpu_off_timer  = 0,
 246         .suspend_mode   = TEGRA_SUSPEND_LP1,
 247         .core_timer     = 0x7e7e,
 248         .core_off_timer = 0,
 249         .separate_req   = true,
 250         .corereq_high   = false,
 251         .sysclkreq_high = true,
 252         .wake_enb       = TEGRA_WAKE_GPIO_PV2,
 253         .wake_high      = 0,
 254         .wake_low       = TEGRA_WAKE_GPIO_PV2,
 255         .wake_any       = 0,
 256 };
 257
 258 int __init ventana_regulator_init(void)
 259 {
 260         void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
 261         u32 pmc_ctrl;
 262
 263         /* configure the power management controller to trigger PMU
 264          * interrupts when low */
 265         pmc_ctrl = readl(pmc + PMC_CTRL);
 266         writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
 267         platform_device_register(&ventana_pda_power_device);
 268         i2c_register_board_info(4, ventana_regulators, 1);
 269         tegra_init_suspend(&ventana_suspend_data);
 270         return 0;
 271 }