diff options
Diffstat (limited to 'arch/arm/mach-mx5/mx53_loco_pmic_da9053.c')
| -rw-r--r-- | arch/arm/mach-mx5/mx53_loco_pmic_da9053.c | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/mx53_loco_pmic_da9053.c b/arch/arm/mach-mx5/mx53_loco_pmic_da9053.c new file mode 100644 index 000000000000..e11243b67043 --- /dev/null +++ b/arch/arm/mach-mx5/mx53_loco_pmic_da9053.c @@ -0,0 +1,270 @@ +/* + * 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); +} |