/*
* Copyright (C) 2010 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/of.h>
#include <linux/of_i2c.h>
#include <asm/mach-types.h>
#include <mach/irqs.h>
#include "board-harmony.h"
static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
REGULATOR_SUPPLY("pex_clk", NULL),
};
static struct regulator_init_data ldo0_data = {
.supply_regulator = "vdd_sm2",
.constraints = {
.name = "vdd_ldo0",
.min_uV = 3300 * 1000,
.max_uV = 3300 * 1000,
.valid_modes_mask = (REGULATOR_MODE_NORMAL |
REGULATOR_MODE_STANDBY),
.valid_ops_mask = (REGULATOR_CHANGE_MODE |
REGULATOR_CHANGE_STATUS |
REGULATOR_CHANGE_VOLTAGE),
.apply_uV = 1,
},
.num_consumer_supplies = ARRAY_SIZE(tps658621_ldo0_supply),
.consumer_supplies = tps658621_ldo0_supply,
};
#define HARMONY_REGULATOR_INIT(_id, _name, _supply, _minmv, _maxmv, _on)\
static struct regulator_init_data _id##_data = { \
.supply_regulator = _supply, \
.constraints = { \
.name = _name, \
.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), \
.always_on = _on, \
}, \
}
HARMONY_REGULATOR_INIT(sm0, "vdd_sm0", "vdd_sys", 725, 1500, 1);
HARMONY_REGULATOR_INIT(sm1, "vdd_sm1", "vdd_sys", 725, 1500, 1);
HARMONY_REGULATOR_INIT(sm2, "vdd_sm2", "vdd_sys", 3000, 4550, 1);
HARMONY_REGULATOR_INIT(ldo1, "vdd_ldo1", "vdd_sm2", 725, 1500, 1);
HARMONY_REGULATOR_INIT(ldo2, "vdd_ldo2", "vdd_sm2", 725, 1500, 0);
HARMONY_REGULATOR_INIT(ldo3, "vdd_ldo3", "vdd_sm2", 1250, 3300, 1);
HARMONY_REGULATOR_INIT(ldo4, "vdd_ldo4", "vdd_sm2", 1700, 2475, 1);
HARMONY_REGULATOR_INIT(ldo5, "vdd_ldo5", NULL, 1250, 3300, 1);
HARMONY_REGULATOR_INIT(ldo6, "vdd_ldo6", "vdd_sm2", 1250, 3300, 0);
HARMONY_REGULATOR_INIT(ldo7, "vdd_ldo7", "vdd_sm2", 1250, 3300, 0);
HARMONY_REGULATOR_INIT(ldo8, "vdd_ldo8", "vdd_sm2", 1250, 3300, 0);
HARMONY_REGULATOR_INIT(ldo9, "vdd_ldo9", "vdd_sm2", 1250, 3300, 1);
#define TPS_REG(_id, _data) \
{ \
.id = TPS6586X_ID_##_id, \
.name = "tps6586x-regulator", \
.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),
};
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),
};
static struct i2c_board_info __initdata harmony_regulators[] = {
{
I2C_BOARD_INFO("tps6586x", 0x34),
.irq = INT_EXTERNAL_PMU,
.platform_data = &tps_platform,
},
};
int __init harmony_regulator_init(void)
{
regulator_register_always_on(0, "vdd_sys",
NULL, 0, 5000000);
if (machine_is_harmony()) {
i2c_register_board_info(3, harmony_regulators, 1);
} else { /* Harmony, booted using device tree */
struct device_node *np;
struct i2c_adapter *adapter;
np = of_find_node_by_path("/i2c@7000d000");
if (np == NULL) {
pr_err("Could not find device_node for DVC I2C\n");
return -ENODEV;
}
adapter = of_find_i2c_adapter_by_node(np);
if (!adapter) {
pr_err("Could not find i2c_adapter for DVC I2C\n");
return -ENODEV;
}
i2c_new_device(adapter, harmony_regulators);
}
return 0;
}
