| /* |
| * Device access for Dialog DA9055 PMICs. |
| * |
| * Copyright(c) 2012 Dialog Semiconductor Ltd. |
| * |
| * Author: David Dajun Chen <dchen@diasemi.com> |
| * |
| * 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. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/device.h> |
| #include <linux/input.h> |
| #include <linux/irq.h> |
| #include <linux/mutex.h> |
| |
| #include <linux/mfd/core.h> |
| #include <linux/mfd/da9055/core.h> |
| #include <linux/mfd/da9055/pdata.h> |
| #include <linux/mfd/da9055/reg.h> |
| |
| #define DA9055_IRQ_NONKEY_MASK 0x01 |
| #define DA9055_IRQ_ALM_MASK 0x02 |
| #define DA9055_IRQ_TICK_MASK 0x04 |
| #define DA9055_IRQ_ADC_MASK 0x08 |
| #define DA9055_IRQ_BUCK_ILIM_MASK 0x08 |
| |
| static bool da9055_register_readable(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case DA9055_REG_STATUS_A: |
| case DA9055_REG_STATUS_B: |
| case DA9055_REG_EVENT_A: |
| case DA9055_REG_EVENT_B: |
| case DA9055_REG_EVENT_C: |
| case DA9055_REG_IRQ_MASK_A: |
| case DA9055_REG_IRQ_MASK_B: |
| case DA9055_REG_IRQ_MASK_C: |
| |
| case DA9055_REG_CONTROL_A: |
| case DA9055_REG_CONTROL_B: |
| case DA9055_REG_CONTROL_C: |
| case DA9055_REG_CONTROL_D: |
| case DA9055_REG_CONTROL_E: |
| |
| case DA9055_REG_ADC_MAN: |
| case DA9055_REG_ADC_CONT: |
| case DA9055_REG_VSYS_MON: |
| case DA9055_REG_ADC_RES_L: |
| case DA9055_REG_ADC_RES_H: |
| case DA9055_REG_VSYS_RES: |
| case DA9055_REG_ADCIN1_RES: |
| case DA9055_REG_ADCIN2_RES: |
| case DA9055_REG_ADCIN3_RES: |
| |
| case DA9055_REG_COUNT_S: |
| case DA9055_REG_COUNT_MI: |
| case DA9055_REG_COUNT_H: |
| case DA9055_REG_COUNT_D: |
| case DA9055_REG_COUNT_MO: |
| case DA9055_REG_COUNT_Y: |
| case DA9055_REG_ALARM_H: |
| case DA9055_REG_ALARM_D: |
| case DA9055_REG_ALARM_MI: |
| case DA9055_REG_ALARM_MO: |
| case DA9055_REG_ALARM_Y: |
| |
| case DA9055_REG_GPIO0_1: |
| case DA9055_REG_GPIO2: |
| case DA9055_REG_GPIO_MODE0_2: |
| |
| case DA9055_REG_BCORE_CONT: |
| case DA9055_REG_BMEM_CONT: |
| case DA9055_REG_LDO1_CONT: |
| case DA9055_REG_LDO2_CONT: |
| case DA9055_REG_LDO3_CONT: |
| case DA9055_REG_LDO4_CONT: |
| case DA9055_REG_LDO5_CONT: |
| case DA9055_REG_LDO6_CONT: |
| case DA9055_REG_BUCK_LIM: |
| case DA9055_REG_BCORE_MODE: |
| case DA9055_REG_VBCORE_A: |
| case DA9055_REG_VBMEM_A: |
| case DA9055_REG_VLDO1_A: |
| case DA9055_REG_VLDO2_A: |
| case DA9055_REG_VLDO3_A: |
| case DA9055_REG_VLDO4_A: |
| case DA9055_REG_VLDO5_A: |
| case DA9055_REG_VLDO6_A: |
| case DA9055_REG_VBCORE_B: |
| case DA9055_REG_VBMEM_B: |
| case DA9055_REG_VLDO1_B: |
| case DA9055_REG_VLDO2_B: |
| case DA9055_REG_VLDO3_B: |
| case DA9055_REG_VLDO4_B: |
| case DA9055_REG_VLDO5_B: |
| case DA9055_REG_VLDO6_B: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static bool da9055_register_writeable(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case DA9055_REG_STATUS_A: |
| case DA9055_REG_STATUS_B: |
| case DA9055_REG_EVENT_A: |
| case DA9055_REG_EVENT_B: |
| case DA9055_REG_EVENT_C: |
| case DA9055_REG_IRQ_MASK_A: |
| case DA9055_REG_IRQ_MASK_B: |
| case DA9055_REG_IRQ_MASK_C: |
| |
| case DA9055_REG_CONTROL_A: |
| case DA9055_REG_CONTROL_B: |
| case DA9055_REG_CONTROL_C: |
| case DA9055_REG_CONTROL_D: |
| case DA9055_REG_CONTROL_E: |
| |
| case DA9055_REG_ADC_MAN: |
| case DA9055_REG_ADC_CONT: |
| case DA9055_REG_VSYS_MON: |
| case DA9055_REG_ADC_RES_L: |
| case DA9055_REG_ADC_RES_H: |
| case DA9055_REG_VSYS_RES: |
| case DA9055_REG_ADCIN1_RES: |
| case DA9055_REG_ADCIN2_RES: |
| case DA9055_REG_ADCIN3_RES: |
| |
| case DA9055_REG_COUNT_S: |
| case DA9055_REG_COUNT_MI: |
| case DA9055_REG_COUNT_H: |
| case DA9055_REG_COUNT_D: |
| case DA9055_REG_COUNT_MO: |
| case DA9055_REG_COUNT_Y: |
| case DA9055_REG_ALARM_H: |
| case DA9055_REG_ALARM_D: |
| case DA9055_REG_ALARM_MI: |
| case DA9055_REG_ALARM_MO: |
| case DA9055_REG_ALARM_Y: |
| |
| case DA9055_REG_GPIO0_1: |
| case DA9055_REG_GPIO2: |
| case DA9055_REG_GPIO_MODE0_2: |
| |
| case DA9055_REG_BCORE_CONT: |
| case DA9055_REG_BMEM_CONT: |
| case DA9055_REG_LDO1_CONT: |
| case DA9055_REG_LDO2_CONT: |
| case DA9055_REG_LDO3_CONT: |
| case DA9055_REG_LDO4_CONT: |
| case DA9055_REG_LDO5_CONT: |
| case DA9055_REG_LDO6_CONT: |
| case DA9055_REG_BUCK_LIM: |
| case DA9055_REG_BCORE_MODE: |
| case DA9055_REG_VBCORE_A: |
| case DA9055_REG_VBMEM_A: |
| case DA9055_REG_VLDO1_A: |
| case DA9055_REG_VLDO2_A: |
| case DA9055_REG_VLDO3_A: |
| case DA9055_REG_VLDO4_A: |
| case DA9055_REG_VLDO5_A: |
| case DA9055_REG_VLDO6_A: |
| case DA9055_REG_VBCORE_B: |
| case DA9055_REG_VBMEM_B: |
| case DA9055_REG_VLDO1_B: |
| case DA9055_REG_VLDO2_B: |
| case DA9055_REG_VLDO3_B: |
| case DA9055_REG_VLDO4_B: |
| case DA9055_REG_VLDO5_B: |
| case DA9055_REG_VLDO6_B: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static bool da9055_register_volatile(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case DA9055_REG_STATUS_A: |
| case DA9055_REG_STATUS_B: |
| case DA9055_REG_EVENT_A: |
| case DA9055_REG_EVENT_B: |
| case DA9055_REG_EVENT_C: |
| |
| case DA9055_REG_CONTROL_A: |
| case DA9055_REG_CONTROL_E: |
| |
| case DA9055_REG_ADC_MAN: |
| case DA9055_REG_ADC_RES_L: |
| case DA9055_REG_ADC_RES_H: |
| case DA9055_REG_VSYS_RES: |
| case DA9055_REG_ADCIN1_RES: |
| case DA9055_REG_ADCIN2_RES: |
| case DA9055_REG_ADCIN3_RES: |
| |
| case DA9055_REG_COUNT_S: |
| case DA9055_REG_COUNT_MI: |
| case DA9055_REG_COUNT_H: |
| case DA9055_REG_COUNT_D: |
| case DA9055_REG_COUNT_MO: |
| case DA9055_REG_COUNT_Y: |
| case DA9055_REG_ALARM_MI: |
| |
| case DA9055_REG_BCORE_CONT: |
| case DA9055_REG_BMEM_CONT: |
| case DA9055_REG_LDO1_CONT: |
| case DA9055_REG_LDO2_CONT: |
| case DA9055_REG_LDO3_CONT: |
| case DA9055_REG_LDO4_CONT: |
| case DA9055_REG_LDO5_CONT: |
| case DA9055_REG_LDO6_CONT: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static struct regmap_irq da9055_irqs[] = { |
| [DA9055_IRQ_NONKEY] = { |
| .reg_offset = 0, |
| .mask = DA9055_IRQ_NONKEY_MASK, |
| }, |
| [DA9055_IRQ_ALARM] = { |
| .reg_offset = 0, |
| .mask = DA9055_IRQ_ALM_MASK, |
| }, |
| [DA9055_IRQ_TICK] = { |
| .reg_offset = 0, |
| .mask = DA9055_IRQ_TICK_MASK, |
| }, |
| [DA9055_IRQ_HWMON] = { |
| .reg_offset = 0, |
| .mask = DA9055_IRQ_ADC_MASK, |
| }, |
| [DA9055_IRQ_REGULATOR] = { |
| .reg_offset = 1, |
| .mask = DA9055_IRQ_BUCK_ILIM_MASK, |
| }, |
| }; |
| |
| struct regmap_config da9055_regmap_config = { |
| .reg_bits = 8, |
| .val_bits = 8, |
| |
| .cache_type = REGCACHE_RBTREE, |
| |
| .max_register = DA9055_MAX_REGISTER_CNT, |
| .readable_reg = da9055_register_readable, |
| .writeable_reg = da9055_register_writeable, |
| .volatile_reg = da9055_register_volatile, |
| }; |
| EXPORT_SYMBOL_GPL(da9055_regmap_config); |
| |
| static struct resource da9055_onkey_resource = { |
| .name = "ONKEY", |
| .start = DA9055_IRQ_NONKEY, |
| .end = DA9055_IRQ_NONKEY, |
| .flags = IORESOURCE_IRQ, |
| }; |
| |
| static struct resource da9055_rtc_resource[] = { |
| { |
| .name = "ALM", |
| .start = DA9055_IRQ_ALARM, |
| .end = DA9055_IRQ_ALARM, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .name = "TICK", |
| .start = DA9055_IRQ_TICK, |
| .end = DA9055_IRQ_TICK, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct resource da9055_hwmon_resource = { |
| .name = "HWMON", |
| .start = DA9055_IRQ_HWMON, |
| .end = DA9055_IRQ_HWMON, |
| .flags = IORESOURCE_IRQ, |
| }; |
| |
| static struct resource da9055_ld05_6_resource = { |
| .name = "REGULATOR", |
| .start = DA9055_IRQ_REGULATOR, |
| .end = DA9055_IRQ_REGULATOR, |
| .flags = IORESOURCE_IRQ, |
| }; |
| |
| static struct mfd_cell da9055_devs[] = { |
| { |
| .of_compatible = "dialog,da9055-gpio", |
| .name = "da9055-gpio", |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 1, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 2, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 3, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 4, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 5, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 6, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .id = 7, |
| .resources = &da9055_ld05_6_resource, |
| .num_resources = 1, |
| }, |
| { |
| .of_compatible = "dialog,da9055-regulator", |
| .name = "da9055-regulator", |
| .resources = &da9055_ld05_6_resource, |
| .num_resources = 1, |
| .id = 8, |
| }, |
| { |
| .of_compatible = "dialog,da9055-onkey", |
| .name = "da9055-onkey", |
| .resources = &da9055_onkey_resource, |
| .num_resources = 1, |
| }, |
| { |
| .of_compatible = "dialog,da9055-rtc", |
| .name = "da9055-rtc", |
| .resources = da9055_rtc_resource, |
| .num_resources = ARRAY_SIZE(da9055_rtc_resource), |
| }, |
| { |
| .of_compatible = "dialog,da9055-hwmon", |
| .name = "da9055-hwmon", |
| .resources = &da9055_hwmon_resource, |
| .num_resources = 1, |
| }, |
| { |
| .of_compatible = "dialog,da9055-watchdog", |
| .name = "da9055-watchdog", |
| }, |
| }; |
| |
| static struct regmap_irq_chip da9055_regmap_irq_chip = { |
| .name = "da9055_irq", |
| .status_base = DA9055_REG_EVENT_A, |
| .mask_base = DA9055_REG_IRQ_MASK_A, |
| .ack_base = DA9055_REG_EVENT_A, |
| .num_regs = 3, |
| .irqs = da9055_irqs, |
| .num_irqs = ARRAY_SIZE(da9055_irqs), |
| }; |
| |
| int da9055_device_init(struct da9055 *da9055) |
| { |
| struct da9055_pdata *pdata = da9055->dev->platform_data; |
| int ret; |
| uint8_t clear_events[3] = {0xFF, 0xFF, 0xFF}; |
| |
| if (pdata && pdata->init != NULL) |
| pdata->init(da9055); |
| |
| if (!pdata || !pdata->irq_base) |
| da9055->irq_base = -1; |
| else |
| da9055->irq_base = pdata->irq_base; |
| |
| ret = da9055_group_write(da9055, DA9055_REG_EVENT_A, 3, clear_events); |
| if (ret < 0) |
| return ret; |
| |
| ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq, |
| IRQF_TRIGGER_LOW | IRQF_ONESHOT, |
| da9055->irq_base, &da9055_regmap_irq_chip, |
| &da9055->irq_data); |
| if (ret < 0) |
| return ret; |
| |
| da9055->irq_base = regmap_irq_chip_get_base(da9055->irq_data); |
| |
| ret = mfd_add_devices(da9055->dev, -1, |
| da9055_devs, ARRAY_SIZE(da9055_devs), |
| NULL, da9055->irq_base, NULL); |
| if (ret) |
| goto err; |
| |
| return 0; |
| |
| err: |
| mfd_remove_devices(da9055->dev); |
| return ret; |
| } |
| |
| void da9055_device_exit(struct da9055 *da9055) |
| { |
| regmap_del_irq_chip(da9055->chip_irq, da9055->irq_data); |
| mfd_remove_devices(da9055->dev); |
| } |
| |
| MODULE_DESCRIPTION("Core support for the DA9055 PMIC"); |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>"); |