/*
* Copyright (C) 2010-2011 NVIDIA, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307, USA
*/
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/mfd/tps6586x.h>
#include <linux/io.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include "board-harmony.h"
#include "pm.h"
#define PMC_CTRL 0x0
#define PMC_CTRL_INTR_LOW (1 << 17)
static struct regulator_consumer_supply tps658621_sm0_supply[] = {
REGULATOR_SUPPLY("vdd_core", NULL),
};
static struct regulator_consumer_supply tps658621_sm1_supply[] = {
REGULATOR_SUPPLY("vdd_cpu", NULL),
};
static struct regulator_consumer_supply tps658621_sm2_supply[] = {
REGULATOR_SUPPLY("vdd_sm2", NULL),
};
static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
REGULATOR_SUPPLY("p_cam_avdd", NULL),
};
static struct regulator_consumer_supply tps658621_ldo1_supply[] = {
REGULATOR_SUPPLY("avdd_pll", NULL),
};
static struct regulator_consumer_supply tps658621_ldo2_supply[] = {
REGULATOR_SUPPLY("vdd_rtc", NULL),
};
static struct regulator_consumer_supply tps658621_ldo3_supply[] = {
REGULATOR_SUPPLY("avdd_usb", NULL),
REGULATOR_SUPPLY("avdd_usb_pll", NULL),
REGULATOR_SUPPLY("avdd_lvds", NULL),
};
static struct regulator_consumer_supply tps658621_ldo4_supply[] = {
REGULATOR_SUPPLY("avdd_osc", NULL),
REGULATOR_SUPPLY("vddio_sys", "panjit_touch"),
};
static struct regulator_consumer_supply tps658621_ldo5_supply[] = {
REGULATOR_SUPPLY("vcore_mmc", "sdhci-tegra.1"),
REGULATOR_SUPPLY("vcore_mmc", "sdhci-tegra.3"),
};
static struct regulator_consumer_supply tps658621_ldo6_supply[] = {
REGULATOR_SUPPLY("avdd_vdac", NULL),
};
static struct regulator_consumer_supply tps658621_ldo7_supply[] = {
REGULATOR_SUPPLY("avdd_hdmi", NULL),
REGULATOR_SUPPLY("vdd_fuse", NULL),
};
static struct regulator_consumer_supply tps658621_ldo8_supply[] = {
REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
};
static struct regulator_consumer_supply tps658621_ldo9_supply[] = {
REGULATOR_SUPPLY("avdd_2v85", NULL),
REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
REGULATOR_SUPPLY("avdd_amp", NULL),
};
/* regulator supplies power to WWAN - by default disable */
static struct regulator_consumer_supply vdd_1v5_consumer_supply[] = {
REGULATOR_SUPPLY("vdd_1v5", NULL),
};
static struct regulator_init_data vdd_1v5_initdata = {
.consumer_supplies = vdd_1v5_consumer_supply,
.num_consumer_supplies = 1,
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
.always_on = 0,
},
};
static struct fixed_voltage_config vdd_1v5 = {
.supply_name = "vdd_1v5",
.microvolts = 1500000, /* Enable 1.5V */
.gpio = TPS_GPIO_EN_1V5, /* GPIO BASE+0 */
.startup_delay = 0,
.enable_high = 0,
.enabled_at_boot = 0,
.init_data = &vdd_1v5_initdata,
};
/* regulator supplies power to WLAN - enable here, to satisfy SDIO probing */
static struct regulator_consumer_supply vdd_1v2_consumer_supply[] = {
REGULATOR_SUPPLY("vdd_1v2", NULL),
};
static struct regulator_init_data vdd_1v2_initdata = {
.consumer_supplies = vdd_1v2_consumer_supply,
.num_consumer_supplies = 1,
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
.always_on = 1,
},
};
static struct fixed_voltage_config vdd_1v2 = {
.supply_name = "vdd_1v2",
.microvolts = 1200000, /* Enable 1.2V */
.gpio = TPS_GPIO_EN_1V2, /* GPIO BASE+1 */
.startup_delay = 0,
.enable_high = 1,
.enabled_at_boot = 1,
.init_data = &vdd_1v2_initdata,
};
/* regulator supplies power to PLL - enable here */
static struct regulator_consumer_supply vdd_1v05_consumer_supply[] = {
REGULATOR_SUPPLY("vdd_1v05", NULL),
};
static struct regulator_init_data vdd_1v05_initdata = {
.consumer_supplies = vdd_1v05_consumer_supply,
.num_consumer_supplies = 1,
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
.always_on = 1,
},
};
static struct fixed_voltage_config vdd_1v05 = {
.supply_name = "vdd_1v05",
.microvolts = 1050000, /* Enable 1.05V */
.gpio = TPS_GPIO_EN_1V05, /* BASE+2 */
.startup_delay = 0,
.enable_high = 1,
.enabled_at_boot = 0,
.init_data = &vdd_1v05_initdata,
};
/* mode pin for 1.05V regulator - enable here */
static struct regulator_consumer_supply vdd_1v05_mode_consumer_supply[] = {
REGULATOR_SUPPLY("vdd_1v05_mode", NULL),
};
static struct regulator_init_data vdd_1v05_mode_initdata = {
.consumer_supplies = vdd_1v05_mode_consumer_supply,
.num_consumer_supplies = 1,
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
.always_on = 1,
},
};
static struct fixed_voltage_config vdd_1v05_mode = {
.supply_name = "vdd_1v05_mode",
.microvolts = 1050000, /* Enable 1.05V */
.gpio = TPS_GPIO_MODE_1V05, /* BASE+3 */
.startup_delay = 0,
.enable_high = 1,
.enabled_at_boot = 0,
.init_data = &vdd_1v05_mode_initdata,
};
#define REGULATOR_INIT(_id, _minmv, _maxmv) \
{ \
.constraints = { \
.min_uV = (_minmv)*1000, \
.max_uV = (_maxmv)*1000, \
.valid_modes_mask = (REGULATOR_MODE_NORMAL | \
REGULATOR_MODE_STANDBY), \
.valid_ops_mask = (REGULATOR_CHANGE_MODE | \
REGULATOR_CHANGE_STATUS | \
REGULATOR_CHANGE_VOLTAGE), \
}, \
.num_consumer_supplies = ARRAY_SIZE(tps658621_##_id##_supply),\
.consumer_supplies = tps658621_##_id##_supply, \
}
static struct regulator_init_data sm0_data = REGULATOR_INIT(sm0, 725, 1500);
static struct regulator_init_data sm1_data = REGULATOR_INIT(sm1, 725, 1500);
static struct regulator_init_data sm2_data = REGULATOR_INIT(sm2, 3000, 4550);
static struct regulator_init_data ldo0_data = REGULATOR_INIT(ldo0, 1250, 3300);
static struct regulator_init_data ldo1_data = REGULATOR_INIT(ldo1, 725, 1500);
static struct regulator_init_data ldo2_data = REGULATOR_INIT(ldo2, 725, 1500);
static struct regulator_init_data ldo3_data = REGULATOR_INIT(ldo3, 1250, 3300);
static struct regulator_init_data ldo4_data = REGULATOR_INIT(ldo4, 1700, 2475);
static struct regulator_init_data ldo5_data = REGULATOR_INIT(ldo5, 1250, 3300);
static struct regulator_init_data ldo6_data = REGULATOR_INIT(ldo6, 1250, 3300);
static struct regulator_init_data ldo7_data = REGULATOR_INIT(ldo7, 1250, 3300);
static struct regulator_init_data ldo8_data = REGULATOR_INIT(ldo8, 1250, 3300);
static struct regulator_init_data ldo9_data = REGULATOR_INIT(ldo9, 1250, 3300);
static struct tps6586x_rtc_platform_data rtc_data = {
.irq = TEGRA_NR_IRQS + TPS6586X_INT_RTC_ALM1,
.start = {
.year = 2009,
.month = 1,
.day = 1,
},
.cl_sel = TPS6586X_RTC_CL_SEL_1_5PF /* use lowest (external 20pF cap) */
};
#define TPS_REG(_id, _data) \
{ \
.id = TPS6586X_ID_##_id, \
.name = "tps6586x-regulator", \
.platform_data = _data, \
}
#define TPS_GPIO_FIXED_REG(_id, _data) \
{ \
.id = _id, \
.name = "reg-fixed-voltage", \
.platform_data = _data, \
}
static struct tps6586x_subdev_info tps_devs[] = {
TPS_REG(SM_0, &sm0_data),
TPS_REG(SM_1, &sm1_data),
TPS_REG(SM_2, &sm2_data),
TPS_REG(LDO_0, &ldo0_data),
TPS_REG(LDO_1, &ldo1_data),
TPS_REG(LDO_2, &ldo2_data),
TPS_REG(LDO_3, &ldo3_data),
TPS_REG(LDO_4, &ldo4_data),
TPS_REG(LDO_5, &ldo5_data),
TPS_REG(LDO_6, &ldo6_data),
TPS_REG(LDO_7, &ldo7_data),
TPS_REG(LDO_8, &ldo8_data),
TPS_REG(LDO_9, &ldo9_data),
TPS_GPIO_FIXED_REG(0, &vdd_1v5),
TPS_GPIO_FIXED_REG(1, &vdd_1v2),
TPS_GPIO_FIXED_REG(2, &vdd_1v05),
TPS_GPIO_FIXED_REG(3, &vdd_1v05_mode),
{
.id = 0,
.name = "tps6586x-rtc",
.platform_data = &rtc_data,
},
};
static struct tps6586x_platform_data tps_platform = {
.irq_base = TEGRA_NR_IRQS,
.num_subdevs = ARRAY_SIZE(tps_devs),
.subdevs = tps_devs,
.gpio_base = HARMONY_GPIO_TPS6586X(0),
.use_power_off = true,
};
static struct i2c_board_info __initdata harmony_regulators[] = {
{
I2C_BOARD_INFO("tps6586x", 0x34),
.irq = INT_EXTERNAL_PMU,
.platform_data = &tps_platform,
},
};
static void harmony_board_suspend(int lp_state, enum suspend_stage stg)
{
if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
tegra_console_uart_suspend();
}
static void harmony_board_resume(int lp_state, enum resume_stage stg)
{
if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
tegra_console_uart_resume();
}
static struct tegra_suspend_platform_data harmony_suspend_data = {
/*
* Check power on time and crystal oscillator start time
* for appropriate settings.
*/
.cpu_timer = 5000,
.cpu_off_timer = 5000,
.suspend_mode = TEGRA_SUSPEND_LP0,
.core_timer = 0x7e7e,
.core_off_timer = 0x7f,
.corereq_high = false,
.sysclkreq_high = true,
.board_suspend = harmony_board_suspend,
.board_resume = harmony_board_resume,
};
int __init harmony_suspend_init(void)
{
tegra_init_suspend(&harmony_suspend_data);
return 0;
}
int __init harmony_regulator_init(void)
{
void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
u32 pmc_ctrl;
/* configure the power management controller to trigger PMU
* interrupts when low */
pmc_ctrl = readl(pmc + PMC_CTRL);
writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
i2c_register_board_info(4, harmony_regulators, 1);
return 0;
}
