diff options
Diffstat (limited to 'arch/arm/mach-mx3/mx35_3ds_pmic_mc13892.c')
| -rw-r--r-- | arch/arm/mach-mx3/mx35_3ds_pmic_mc13892.c | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mx35_3ds_pmic_mc13892.c b/arch/arm/mach-mx3/mx35_3ds_pmic_mc13892.c new file mode 100644 index 000000000000..2199e85733c5 --- /dev/null +++ b/arch/arm/mach-mx3/mx35_3ds_pmic_mc13892.c @@ -0,0 +1,392 @@ +/* + * mx35-3stack-pmic-mc13892.c -- i.MX35 3STACK Driver for Atlas MC13892 PMIC + */ + /* + * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + + /* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include <linux/pmic_external.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/mc13892/core.h> + +#include <mach/iomux-mx35.h> +#include <mach/hardware.h> +/* + * Convenience conversion. + * Here atm, maybe there is somewhere better for this. + */ +#define mV_to_uV(mV) (mV * 1000) +#define uV_to_mV(uV) (uV / 1000) +#define V_to_uV(V) (mV_to_uV(V * 1000)) +#define uV_to_V(uV) (uV_to_mV(uV) / 1000) + +#define STANDBYSECINV_LSH 11 +#define STANDBYSECINV_WID 1 + +/* regulator standby mask */ +#define GEN1_STBY_MASK (1 << 1) +#define IOHI_STBY_MASK (1 << 4) +#define DIG_STBY_MASK (1 << 10) +#define GEN2_STBY_MASK (1 << 13) +#define PLL_STBY_MASK (1 << 16) +#define USB2_STBY_MASK (1 << 19) + +#define GEN3_STBY_MASK (1 << 1) +#define CAM_STBY_MASK (1 << 7) +#define VIDEO_STBY_MASK (1 << 13) +#define AUDIO_STBY_MASK (1 << 16) +#define SD_STBY_MASK (1 << 19) + +/* 0x92412 */ +#define REG_MODE_0_ALL_MASK (GEN1_STBY_MASK | \ + IOHI_STBY_MASK | DIG_STBY_MASK | \ + GEN2_STBY_MASK | PLL_STBY_MASK | \ + USB2_STBY_MASK) +/* 0x92082 */ +#define REG_MODE_1_ALL_MASK (GEN3_STBY_MASK | \ + CAM_STBY_MASK | VIDEO_STBY_MASK | \ + AUDIO_STBY_MASK | SD_STBY_MASK) + +/* CPU */ +static struct regulator_consumer_supply sw1_consumers[] = { + { + .supply = "cpu_vcc", + } +}; + +static struct regulator_consumer_supply vcam_consumers[] = { + { + /* sgtl5000 */ + .supply = "VDDA", + .dev_name = "0-000a", + }, +}; + +struct mc13892; + +static struct regulator_init_data sw1_init = { + .constraints = { + .name = "SW1", + .min_uV = mV_to_uV(600), + .max_uV = mV_to_uV(1375), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .valid_modes_mask = 0, + .always_on = 1, + .boot_on = 1, + .initial_state = PM_SUSPEND_MEM, + .state_mem = { + .uV = 700000, + .mode = REGULATOR_MODE_NORMAL, + .enabled = 1, + }, + }, + .num_consumer_supplies = ARRAY_SIZE(sw1_consumers), + .consumer_supplies = sw1_consumers, +}; + +static struct regulator_init_data sw2_init = { + .constraints = { + .name = "SW2", + .min_uV = mV_to_uV(900), + .max_uV = mV_to_uV(1850), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + .initial_state = PM_SUSPEND_MEM, + .state_mem = { + .uV = 1200000, + .mode = REGULATOR_MODE_NORMAL, + .enabled = 1, + }, + .state_standby = { + .uV = 1000000, + .mode = REGULATOR_MODE_NORMAL, + .enabled = 1, + }, + } +}; + +static struct regulator_init_data sw3_init = { + .constraints = { + .name = "SW3", + .min_uV = mV_to_uV(1100), + .max_uV = mV_to_uV(1850), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data sw4_init = { + .constraints = { + .name = "SW4", + .min_uV = mV_to_uV(1100), + .max_uV = mV_to_uV(1850), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data viohi_init = { + .constraints = { + .name = "VIOHI", + .boot_on = 1, + } +}; + +static struct regulator_init_data vusb_init = { + .constraints = { + .name = "VUSB", + .boot_on = 1, + } +}; + +static struct regulator_init_data swbst_init = { + .constraints = { + .name = "SWBST", + } +}; + +static struct regulator_init_data vdig_init = { + .constraints = { + .name = "VDIG", + .min_uV = mV_to_uV(1050), + .max_uV = mV_to_uV(1800), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + } +}; + +static struct regulator_init_data vpll_init = { + .constraints = { + .name = "VPLL", + .min_uV = mV_to_uV(1050), + .max_uV = mV_to_uV(1800), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + } +}; + +static struct regulator_init_data vusb2_init = { + .constraints = { + .name = "VUSB2", + .min_uV = mV_to_uV(2400), + .max_uV = mV_to_uV(2775), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + } +}; + +static struct regulator_init_data vvideo_init = { + .constraints = { + .name = "VVIDEO", + .min_uV = mV_to_uV(2500), + .max_uV = mV_to_uV(2775), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + } +}; + +static struct regulator_init_data vaudio_init = { + .constraints = { + .name = "VAUDIO", + .min_uV = mV_to_uV(2300), + .max_uV = mV_to_uV(3000), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + } +}; + +static struct regulator_init_data vsd_init = { + .constraints = { + .name = "VSD", + .min_uV = mV_to_uV(1800), + .max_uV = mV_to_uV(3150), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + } +}; + +static struct regulator_init_data vcam_init = { + .constraints = { + .name = "VCAM", + .min_uV = mV_to_uV(2500), + .max_uV = mV_to_uV(3000), + .valid_ops_mask = + REGULATOR_CHANGE_VOLTAGE | REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_FAST | REGULATOR_MODE_NORMAL, + }, + .num_consumer_supplies = ARRAY_SIZE(vcam_consumers), + .consumer_supplies = vcam_consumers, +}; + +static struct regulator_init_data vgen1_init = { + .constraints = { + .name = "VGEN1", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(3150), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + } +}; + +static struct regulator_init_data vgen2_init = { + .constraints = { + .name = "VGEN2", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(3150), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + } +}; + +static struct regulator_init_data vgen3_init = { + .constraints = { + .name = "VGEN3", + .min_uV = mV_to_uV(1800), + .max_uV = mV_to_uV(2900), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + } +}; + +static struct regulator_init_data gpo1_init = { + .constraints = { + .name = "GPO1", + } +}; + +static struct regulator_init_data gpo2_init = { + .constraints = { + .name = "GPO2", + } +}; + +static struct regulator_init_data gpo3_init = { + .constraints = { + .name = "GPO3", + } +}; + +static struct regulator_init_data gpo4_init = { + .constraints = { + .name = "GPO4", + } +}; + +static struct regulator_init_data pwg1_init = { + .constraints = { + .name = "PWG1", + } +}; + +static struct regulator_init_data pwg2_init = { + .constraints = { + .name = "PWG2", + } +}; + +/*! + * the event handler for power on event + */ +static void power_on_evt_handler(void) +{ + pr_info("pwr on event1 is received \n"); +} + +/*! + * pmic board initialization code + */ +static int init_mc13892(void) +{ + unsigned int value; + pmic_event_callback_t power_key_event; + + if (!board_is_rev(BOARD_REV_2)) + return -1; + + /* subscribe PWRON1 event. */ + power_key_event.param = NULL; + power_key_event.func = (void *)power_on_evt_handler; + pmic_event_subscribe(EVENT_PWRONI, power_key_event); + + pmic_read_reg(REG_POWER_CTL2, &value, 0xffffff); + /* Bit 11 (STANDBYSECINV): Active Low */ + value |= 0x00800; + /* Bit 12 (WDIRESET): enable */ + value |= 0x01000; + pmic_write_reg(REG_POWER_CTL2, value, 0xffffff); + + /* Battery charger default settings */ + /* current limit = 1200mA, PLIM = 1000mw, disable auto charge */ + value = 0x210068; + pmic_write_reg(REG_CHARGE, value, 0x018078); + + /* enable standby controll for regulators */ + pmic_read_reg(REG_MODE_0, &value, 0xffffff); + value &= ~REG_MODE_0_ALL_MASK; + value |= (DIG_STBY_MASK | PLL_STBY_MASK | \ + USB2_STBY_MASK); + pmic_write_reg(REG_MODE_0, value, 0xffffff); + + pmic_read_reg(REG_MODE_1, &value, 0xffffff); + value |= REG_MODE_1_ALL_MASK; + pmic_write_reg(REG_MODE_1, value, 0xffffff); + + return 0; +} + +static int mc13892_regulator_init(struct mc13892 *mc13892) +{ + mc13892_register_regulator(mc13892, MC13892_SW1, &sw1_init); + mc13892_register_regulator(mc13892, MC13892_SW2, &sw2_init); + mc13892_register_regulator(mc13892, MC13892_SW3, &sw3_init); + mc13892_register_regulator(mc13892, MC13892_SW4, &sw4_init); + mc13892_register_regulator(mc13892, MC13892_SWBST, &swbst_init); + mc13892_register_regulator(mc13892, MC13892_VIOHI, &viohi_init); + mc13892_register_regulator(mc13892, MC13892_VPLL, &vpll_init); + mc13892_register_regulator(mc13892, MC13892_VDIG, &vdig_init); + mc13892_register_regulator(mc13892, MC13892_VSD, &vsd_init); + mc13892_register_regulator(mc13892, MC13892_VUSB2, &vusb2_init); + mc13892_register_regulator(mc13892, MC13892_VVIDEO, &vvideo_init); + mc13892_register_regulator(mc13892, MC13892_VAUDIO, &vaudio_init); + mc13892_register_regulator(mc13892, MC13892_VCAM, &vcam_init); + mc13892_register_regulator(mc13892, MC13892_VGEN1, &vgen1_init); + mc13892_register_regulator(mc13892, MC13892_VGEN2, &vgen2_init); + mc13892_register_regulator(mc13892, MC13892_VGEN3, &vgen3_init); + mc13892_register_regulator(mc13892, MC13892_VUSB, &vusb_init); + mc13892_register_regulator(mc13892, MC13892_GPO1, &gpo1_init); + mc13892_register_regulator(mc13892, MC13892_GPO2, &gpo2_init); + mc13892_register_regulator(mc13892, MC13892_GPO3, &gpo3_init); + mc13892_register_regulator(mc13892, MC13892_GPO4, &gpo4_init); + mc13892_register_regulator(mc13892, MC13892_PWGT1, &pwg1_init); + mc13892_register_regulator(mc13892, MC13892_PWGT2, &pwg2_init); + + init_mc13892(); + return 0; +} + +static struct mc13892_platform_data mc13892_plat = { + .init = mc13892_regulator_init, +}; + +static struct i2c_board_info __initdata mc13892_i2c_device = { + I2C_BOARD_INFO("mc13892", 0x08), + .irq = IOMUX_TO_IRQ(MX35_GPIO2_0), + .platform_data = &mc13892_plat, +}; + +int __init mx35_3stack_init_mc13892(void) +{ + return i2c_register_board_info(0, &mc13892_i2c_device, 1); +} |