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/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* mx53_loco_pmic_da9053.c -- i.MX53 LOCO driver for pmic da9053
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/pm.h>
#include <linux/mfd/da9052/led.h>
#include <linux/mfd/da9052/tsi.h>
#include <mach/irqs.h>
#include <mach/iomux-mx53.h>
#define DA9052_LDO(max, min, rname, suspend_mv) \
{\
.constraints = {\
.name = (rname), \
.max_uV = (max) * 1000,\
.min_uV = (min) * 1000,\
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE\
|REGULATOR_CHANGE_STATUS | REGULATOR_CHANGE_MODE,\
.valid_modes_mask = REGULATOR_MODE_NORMAL,\
.state_mem = { \
.uV = suspend_mv * 1000, \
.mode = REGULATOR_MODE_NORMAL, \
.enabled = (0 == suspend_mv) ? 0 : 1, \
.disabled = 0, \
}, \
},\
}
/* currently the suspend_mv here takes no effects for DA9053
preset-voltage have to be done in the latest stage during
suspend*/
static struct regulator_init_data da9052_regulators_init[] = {
DA9052_LDO(DA9052_LDO1_VOLT_UPPER,
DA9052_LDO1_VOLT_LOWER, "DA9052_LDO1", 1300),
DA9052_LDO(DA9052_LDO2_VOLT_UPPER,
DA9052_LDO2_VOLT_LOWER, "DA9052_LDO2", 1300),
DA9052_LDO(DA9052_LDO34_VOLT_UPPER,
DA9052_LDO34_VOLT_LOWER, "DA9052_LDO3", 3300),
DA9052_LDO(DA9052_LDO34_VOLT_UPPER,
DA9052_LDO34_VOLT_LOWER, "DA9052_LDO4", 2775),
DA9052_LDO(DA9052_LDO567810_VOLT_UPPER,
DA9052_LDO567810_VOLT_LOWER, "DA9052_LDO5", 1300),
DA9052_LDO(DA9052_LDO567810_VOLT_UPPER,
DA9052_LDO567810_VOLT_LOWER, "DA9052_LDO6", 1200),
DA9052_LDO(DA9052_LDO567810_VOLT_UPPER,
DA9052_LDO567810_VOLT_LOWER, "DA9052_LDO7", 2750),
DA9052_LDO(DA9052_LDO567810_VOLT_UPPER,
DA9052_LDO567810_VOLT_LOWER, "DA9052_LDO8", 1800),
DA9052_LDO(DA9052_LDO9_VOLT_UPPER,
DA9052_LDO9_VOLT_LOWER, "DA9052_LDO9", 2500),
DA9052_LDO(DA9052_LDO567810_VOLT_UPPER,
DA9052_LDO567810_VOLT_LOWER, "DA9052_LDO10", 1200),
/* BUCKS */
DA9052_LDO(DA9052_BUCK_CORE_PRO_VOLT_UPPER,
DA9052_BUCK_CORE_PRO_VOLT_LOWER, "DA9052_BUCK_CORE", 850),
DA9052_LDO(DA9052_BUCK_CORE_PRO_VOLT_UPPER,
DA9052_BUCK_CORE_PRO_VOLT_LOWER, "DA9052_BUCK_PRO", 950),
DA9052_LDO(DA9052_BUCK_MEM_VOLT_UPPER,
DA9052_BUCK_MEM_VOLT_LOWER, "DA9052_BUCK_MEM", 1500),
DA9052_LDO(DA9052_BUCK_PERI_VOLT_UPPER,
DA9052_BUCK_PERI_VOLT_LOWER, "DA9052_BUCK_PERI", 2500)
};
static struct da9052_tsi_platform_data da9052_tsi = {
.pen_up_interval = 50,
.tsi_delay_bit_shift = 6,
.tsi_skip_bit_shift = 3,
.num_gpio_tsi_register = 3,
.tsi_supply_voltage = 2500,
/* This is the DA9052 LDO number used for powering the TSI */
.tsi_ref_source = 9,
.max_tsi_delay = TSI_DELAY_4SLOTS,
.max_tsi_skip_slot = TSI_SKIP_330SLOTS,
};
static struct da9052_led_platform_data da9052_gpio_led[] = {
{
.id = DA9052_LED_4,
.name = "LED_GPIO14",
},
{
.id = DA9052_LED_5,
.name = "LED_GPIO15",
},
};
static struct da9052_leds_platform_data da9052_gpio_leds = {
.num_leds = ARRAY_SIZE(da9052_gpio_led),
.led = da9052_gpio_led,
};
static struct da9052_bat_platform_data da9052_bat = {
.sw_temp_control_en = 0,
.monitoring_interval = 500,
.sw_bat_temp_threshold = 60,
.sw_junc_temp_threshold = 120,
.hysteresis_window_size = 1,
.current_monitoring_window = 10,
.bat_with_no_resistor = 62,
.bat_capacity_limit_low = 4,
.bat_capacity_full = 100,
.bat_capacity_limit_high = 70,
.chg_hysteresis_const = 89,
.hysteresis_reading_interval = 1000,
.hysteresis_no_of_reading = 10,
.filter_size = 4,
.bat_volt_cutoff = 2800,
.vbat_first_valid_detect_iteration = 3,
};
static void da9052_init_ssc_cache(struct da9052 *da9052)
{
unsigned char cnt;
/* First initialize all registers as Non-volatile */
for (cnt = 0; cnt < DA9052_REG_CNT; cnt++) {
da9052->ssc_cache[cnt].type = NON_VOLATILE;
da9052->ssc_cache[cnt].status = INVALID;
da9052->ssc_cache[cnt].val = 0;
}
/* Now selectively set type for all Volatile registers */
/* Reg 1 - 9 */
da9052->ssc_cache[DA9052_STATUSA_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_STATUSB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_STATUSC_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_STATUSD_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_EVENTA_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_EVENTB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_EVENTC_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_EVENTD_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_FAULTLOG_REG].type = VOLATILE;
/* Reg 15 */
da9052->ssc_cache[DA9052_CONTROLB_REG].type = VOLATILE;
/* Reg - 17 */
da9052->ssc_cache[DA9052_CONTROLD_REG].type = VOLATILE;
/* Reg - 60 */
da9052->ssc_cache[DA9052_SUPPLY_REG].type = VOLATILE;
/* Reg - 62 */
da9052->ssc_cache[DA9052_CHGBUCK_REG].type = VOLATILE;
/* Reg 67 - 68 */
da9052->ssc_cache[DA9052_INPUTCONT_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_CHGTIME_REG].type = VOLATILE;
/* Reg - 70 */
da9052->ssc_cache[DA9052_BOOST_REG].type = VOLATILE;
/* Reg - 81 */
da9052->ssc_cache[DA9052_ADCMAN_REG].type = VOLATILE;
/* Reg - 83 - 85 */
da9052->ssc_cache[DA9052_ADCRESL_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_ADCRESH_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_VDDRES_REG].type = VOLATILE;
/* Reg - 87 */
da9052->ssc_cache[DA9052_ICHGAV_REG].type = VOLATILE;
/* Reg - 90 */
da9052->ssc_cache[DA9052_TBATRES_REG].type = VOLATILE;
/* Reg - 95 */
da9052->ssc_cache[DA9052_ADCIN4RES_REG].type = VOLATILE;
/* Reg - 98 */
da9052->ssc_cache[DA9052_ADCIN5RES_REG].type = VOLATILE;
/* Reg - 101 */
da9052->ssc_cache[DA9052_ADCIN6RES_REG].type = VOLATILE;
/* Reg - 104 */
da9052->ssc_cache[DA9052_TJUNCRES_REG].type = VOLATILE;
/* Reg 106 - 110 */
da9052->ssc_cache[DA9052_TSICONTB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_TSIXMSB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_TSIYMSB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_TSILSB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_TSIZMSB_REG].type = VOLATILE;
/* Reg 111 - 117 */
da9052->ssc_cache[DA9052_COUNTS_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_COUNTMI_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_COUNTH_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_COUNTD_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_COUNTMO_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_COUNTY_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_ALARMMI_REG].type = VOLATILE;
/* Reg 122 - 125 */
da9052->ssc_cache[DA9052_SECONDA_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_SECONDB_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_SECONDC_REG].type = VOLATILE;
da9052->ssc_cache[DA9052_SECONDD_REG].type = VOLATILE;
/* Following addresses are not assigned to any register */
da9052->ssc_cache[126].type = VOLATILE;
da9052->ssc_cache[127].type = VOLATILE;
}
#define MX53_LOCO_DA9052_IRQ (6*32 + 11) /* GPIO7_11 */
static int __init loco_da9052_init(struct da9052 *da9052)
{
/* Configuring for DA9052 interrupt servce */
/* s3c_gpio_setpull(DA9052_IRQ_PIN, S3C_GPIO_PULL_UP);*/
/* Set interrupt as LOW LEVEL interrupt source */
set_irq_type(IOMUX_TO_IRQ_V3(MX53_LOCO_DA9052_IRQ), IRQF_TRIGGER_LOW);
da9052_init_ssc_cache(da9052);
return 0;
}
static struct da9052_platform_data __initdata da9052_plat = {
.init = loco_da9052_init,
.num_regulators = ARRAY_SIZE(da9052_regulators_init),
.regulators = da9052_regulators_init,
.led_data = &da9052_gpio_leds,
.tsi_data = &da9052_tsi,
.bat_data = &da9052_bat,
/* .gpio_base = GPIO_BOARD_START, */
};
static struct i2c_board_info __initdata da9052_i2c_device = {
I2C_BOARD_INFO(DA9052_SSC_I2C_DEVICE_NAME, DA9052_I2C_ADDR >> 1),
.irq = IOMUX_TO_IRQ_V3(MX53_LOCO_DA9052_IRQ),
.platform_data = &da9052_plat,
};
int __init mx53_loco_init_da9052(void)
{
return i2c_register_board_info(0, &da9052_i2c_device, 1);
}
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