diff options
Diffstat (limited to 'arch/arm/mach-mx5/mx51_babbage_pmic_mc13892.c')
| -rw-r--r-- | arch/arm/mach-mx5/mx51_babbage_pmic_mc13892.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/mx51_babbage_pmic_mc13892.c b/arch/arm/mach-mx5/mx51_babbage_pmic_mc13892.c new file mode 100644 index 000000000000..20ee301ac172 --- /dev/null +++ b/arch/arm/mach-mx5/mx51_babbage_pmic_mc13892.c @@ -0,0 +1,341 @@ +/* + * 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. + */ + +/* + * mx51-babbage-pmic-mc13892.c -- i.MX51 Babbage Driver for Atlas MC13892 PMIC + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/err.h> +#include <linux/pmic_external.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/mc13892.h> +#include <mach/irqs.h> +#include <mach/hardware.h> +#include <linux/gpio.h> +#include <mach/iomux-mx51.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) + +/* CPU */ +static struct regulator_consumer_supply sw1_consumers[] = { + { + .supply = "cpu_vcc", + } +}; + +static struct regulator_consumer_supply vdig_consumers[] = { + { + /* sgtl5000 */ + .supply = "VDDA", + .dev_name = "1-000a", + }, +}; + +static struct regulator_consumer_supply vvideo_consumers[] = { + { + /* sgtl5000 */ + .supply = "VDDIO", + .dev_name = "1-000a", + }, +}; + +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, + .state_mem = { + .uV = 850000, + .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, + .state_mem = { + .uV = 950000, + .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", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data vusb_init = { + .constraints = { + .name = "VUSB", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + .always_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(1650), + .max_uV = mV_to_uV(1650), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(vdig_consumers), + .consumer_supplies = vdig_consumers, +}; + +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 | + REGULATOR_CHANGE_STATUS, + .boot_on = 1, + .always_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 | + REGULATOR_CHANGE_STATUS, + .boot_on = 1, + .always_on = 1, + } +}; + +static struct regulator_init_data vvideo_init = { + .constraints = { + .name = "VVIDEO", + .min_uV = mV_to_uV(2775), + .max_uV = mV_to_uV(2775), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS, + .apply_uV = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(vvideo_consumers), + .consumer_supplies = vvideo_consumers, +}; + +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 | + REGULATOR_CHANGE_STATUS, + } +}; + +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 | + REGULATOR_CHANGE_STATUS, + } +}; + +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 | + REGULATOR_CHANGE_STATUS, + .valid_modes_mask = REGULATOR_MODE_FAST | REGULATOR_MODE_NORMAL, + } +}; + +static struct regulator_init_data vgen1_init = { + .constraints = { + .name = "VGEN1", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(1200), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS, + } +}; + +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 | + REGULATOR_CHANGE_STATUS, + .always_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 | + REGULATOR_CHANGE_STATUS, + .always_on = 1, + } +}; + +static struct regulator_init_data gpo1_init = { + .constraints = { + .name = "GPO1", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + } +}; + +static struct regulator_init_data gpo2_init = { + .constraints = { + .name = "GPO2", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + } +}; + +static struct regulator_init_data gpo3_init = { + .constraints = { + .name = "GPO3", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + } +}; + +static struct regulator_init_data gpo4_init = { + .constraints = { + .name = "GPO4", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + } +}; + +static struct mc13xxx_regulator_init_data mx51_bbg_regulators[] = { + { .id = MC13892_SW1, .init_data = &sw1_init }, + { .id = MC13892_SW2, .init_data = &sw2_init }, + { .id = MC13892_SW3, .init_data = &sw3_init }, + { .id = MC13892_SW4, .init_data = &sw4_init }, + { .id = MC13892_SWBST, .init_data = &swbst_init }, + { .id = MC13892_VIOHI, .init_data = &viohi_init }, + { .id = MC13892_VPLL, .init_data = &vpll_init }, + { .id = MC13892_VDIG, .init_data = &vdig_init }, + { .id = MC13892_VSD, .init_data = &vsd_init }, + { .id = MC13892_VUSB2, .init_data = &vusb2_init }, + { .id = MC13892_VVIDEO, .init_data = &vvideo_init }, + { .id = MC13892_VAUDIO, .init_data = &vaudio_init }, + { .id = MC13892_VCAM, .init_data = &vcam_init }, + { .id = MC13892_VGEN1, .init_data = &vgen1_init }, + { .id = MC13892_VGEN2, .init_data = &vgen2_init }, + { .id = MC13892_VGEN3, .init_data = &vgen3_init }, + { .id = MC13892_VUSB, .init_data = &vusb_init }, + { .id = MC13892_GPO1, .init_data = &gpo1_init }, + { .id = MC13892_GPO2, .init_data = &gpo2_init }, + { .id = MC13892_GPO3, .init_data = &gpo3_init }, + { .id = MC13892_GPO4, .init_data = &gpo4_init }, +}; + +static struct mc13xxx_platform_data mc13892_plat = { + .flags = MC13XXX_USE_REGULATOR, + .regulators = { + .num_regulators = ARRAY_SIZE(mx51_bbg_regulators), + .regulators = mx51_bbg_regulators, + } +}; + +#define MC13892_SPI_IRQ gpio_to_irq(8) +static struct spi_board_info __initdata mc13892_spi_device = { + .modalias = "mc13892", + .irq = MC13892_SPI_IRQ, + .max_speed_hz = 6000000, /* max spi SCK clock speed in HZ */ + .bus_num = 0, + .chip_select = 0, + .platform_data = &mc13892_plat, +}; + + +int __init mx51_babbage_init_mc13892(void) +{ + return spi_register_board_info(&mc13892_spi_device, 1); +} + |