/* da9063-i2c.c: Interrupt support for Dialog DA9063 * * Copyright 2012 Dialog Semiconductor Ltd. * Copyright 2013 Philipp Zabel, Pengutronix * * Author: Krystian Garbaciak <krystian.garbaciak@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/kernel.h> #include <linux/module.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/mfd/core.h> #include <linux/mfd/da9063/core.h> #include <linux/mfd/da9063/pdata.h> #include <linux/mfd/da9063/registers.h> #include <linux/of.h> #include <linux/regulator/of_regulator.h> static const struct regmap_range da9063_ad_readable_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_AD_REG_SECOND_D, }, { .range_min = DA9063_REG_SEQ, .range_max = DA9063_REG_ID_32_31, }, { .range_min = DA9063_REG_SEQ_A, .range_max = DA9063_REG_AUTO3_LOW, }, { .range_min = DA9063_REG_T_OFFSET, .range_max = DA9063_AD_REG_GP_ID_19, }, { .range_min = DA9063_REG_CHIP_ID, .range_max = DA9063_REG_CHIP_VARIANT, }, }; static const struct regmap_range da9063_ad_writeable_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_REG_PAGE_CON, }, { .range_min = DA9063_REG_FAULT_LOG, .range_max = DA9063_REG_VSYS_MON, }, { .range_min = DA9063_REG_COUNT_S, .range_max = DA9063_AD_REG_ALARM_Y, }, { .range_min = DA9063_REG_SEQ, .range_max = DA9063_REG_ID_32_31, }, { .range_min = DA9063_REG_SEQ_A, .range_max = DA9063_REG_AUTO3_LOW, }, { .range_min = DA9063_REG_CONFIG_I, .range_max = DA9063_AD_REG_MON_REG_4, }, { .range_min = DA9063_AD_REG_GP_ID_0, .range_max = DA9063_AD_REG_GP_ID_19, }, }; static const struct regmap_range da9063_ad_volatile_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_REG_EVENT_D, }, { .range_min = DA9063_REG_CONTROL_A, .range_max = DA9063_REG_CONTROL_B, }, { .range_min = DA9063_REG_CONTROL_E, .range_max = DA9063_REG_CONTROL_F, }, { .range_min = DA9063_REG_BCORE2_CONT, .range_max = DA9063_REG_LDO11_CONT, }, { .range_min = DA9063_REG_DVC_1, .range_max = DA9063_REG_ADC_MAN, }, { .range_min = DA9063_REG_ADC_RES_L, .range_max = DA9063_AD_REG_SECOND_D, }, { .range_min = DA9063_REG_SEQ, .range_max = DA9063_REG_SEQ, }, { .range_min = DA9063_REG_EN_32K, .range_max = DA9063_REG_EN_32K, }, { .range_min = DA9063_AD_REG_MON_REG_5, .range_max = DA9063_AD_REG_MON_REG_6, }, }; static const struct regmap_access_table da9063_ad_readable_table = { .yes_ranges = da9063_ad_readable_ranges, .n_yes_ranges = ARRAY_SIZE(da9063_ad_readable_ranges), }; static const struct regmap_access_table da9063_ad_writeable_table = { .yes_ranges = da9063_ad_writeable_ranges, .n_yes_ranges = ARRAY_SIZE(da9063_ad_writeable_ranges), }; static const struct regmap_access_table da9063_ad_volatile_table = { .yes_ranges = da9063_ad_volatile_ranges, .n_yes_ranges = ARRAY_SIZE(da9063_ad_volatile_ranges), }; static const struct regmap_range da9063_bb_readable_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_BB_REG_SECOND_D, }, { .range_min = DA9063_REG_SEQ, .range_max = DA9063_REG_ID_32_31, }, { .range_min = DA9063_REG_SEQ_A, .range_max = DA9063_REG_AUTO3_LOW, }, { .range_min = DA9063_REG_T_OFFSET, .range_max = DA9063_BB_REG_GP_ID_19, }, { .range_min = DA9063_REG_CHIP_ID, .range_max = DA9063_REG_CHIP_VARIANT, }, }; static const struct regmap_range da9063_bb_writeable_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_REG_PAGE_CON, }, { .range_min = DA9063_REG_FAULT_LOG, .range_max = DA9063_REG_VSYS_MON, }, { .range_min = DA9063_REG_COUNT_S, .range_max = DA9063_BB_REG_ALARM_Y, }, { .range_min = DA9063_REG_SEQ, .range_max = DA9063_REG_ID_32_31, }, { .range_min = DA9063_REG_SEQ_A, .range_max = DA9063_REG_AUTO3_LOW, }, { .range_min = DA9063_REG_CONFIG_I, .range_max = DA9063_BB_REG_MON_REG_4, }, { .range_min = DA9063_BB_REG_GP_ID_0, .range_max = DA9063_BB_REG_GP_ID_19, }, }; static const struct regmap_range da9063_bb_volatile_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_REG_EVENT_D, }, { .range_min = DA9063_REG_CONTROL_A, .range_max = DA9063_REG_CONTROL_B, }, { .range_min = DA9063_REG_CONTROL_E, .range_max = DA9063_REG_CONTROL_F, }, { .range_min = DA9063_REG_BCORE2_CONT, .range_max = DA9063_REG_LDO11_CONT, }, { .range_min = DA9063_REG_DVC_1, .range_max = DA9063_REG_ADC_MAN, }, { .range_min = DA9063_REG_ADC_RES_L, .range_max = DA9063_BB_REG_SECOND_D, }, { .range_min = DA9063_REG_SEQ, .range_max = DA9063_REG_SEQ, }, { .range_min = DA9063_REG_EN_32K, .range_max = DA9063_REG_EN_32K, }, { .range_min = DA9063_BB_REG_MON_REG_5, .range_max = DA9063_BB_REG_MON_REG_6, }, }; static const struct regmap_access_table da9063_bb_readable_table = { .yes_ranges = da9063_bb_readable_ranges, .n_yes_ranges = ARRAY_SIZE(da9063_bb_readable_ranges), }; static const struct regmap_access_table da9063_bb_writeable_table = { .yes_ranges = da9063_bb_writeable_ranges, .n_yes_ranges = ARRAY_SIZE(da9063_bb_writeable_ranges), }; static const struct regmap_access_table da9063_bb_volatile_table = { .yes_ranges = da9063_bb_volatile_ranges, .n_yes_ranges = ARRAY_SIZE(da9063_bb_volatile_ranges), }; static const struct regmap_range_cfg da9063_range_cfg[] = { { .range_min = DA9063_REG_PAGE_CON, .range_max = DA9063_REG_CHIP_VARIANT, .selector_reg = DA9063_REG_PAGE_CON, .selector_mask = 1 << DA9063_I2C_PAGE_SEL_SHIFT, .selector_shift = DA9063_I2C_PAGE_SEL_SHIFT, .window_start = 0, .window_len = 256, } }; static struct regmap_config da9063_regmap_config = { .reg_bits = 8, .val_bits = 8, .ranges = da9063_range_cfg, .num_ranges = ARRAY_SIZE(da9063_range_cfg), .max_register = DA9063_REG_CHIP_VARIANT, .cache_type = REGCACHE_RBTREE, }; static const struct of_device_id da9063_dt_ids[] = { { .compatible = "dlg,da9063", }, { } }; MODULE_DEVICE_TABLE(of, da9063_dt_ids); static int da9063_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct da9063 *da9063; int ret; da9063 = devm_kzalloc(&i2c->dev, sizeof(struct da9063), GFP_KERNEL); if (da9063 == NULL) return -ENOMEM; i2c_set_clientdata(i2c, da9063); da9063->dev = &i2c->dev; da9063->chip_irq = i2c->irq; if (da9063->variant_code == PMIC_DA9063_AD) { da9063_regmap_config.rd_table = &da9063_ad_readable_table; da9063_regmap_config.wr_table = &da9063_ad_writeable_table; da9063_regmap_config.volatile_table = &da9063_ad_volatile_table; } else { da9063_regmap_config.rd_table = &da9063_bb_readable_table; da9063_regmap_config.wr_table = &da9063_bb_writeable_table; da9063_regmap_config.volatile_table = &da9063_bb_volatile_table; } da9063->regmap = devm_regmap_init_i2c(i2c, &da9063_regmap_config); if (IS_ERR(da9063->regmap)) { ret = PTR_ERR(da9063->regmap); dev_err(da9063->dev, "Failed to allocate register map: %d\n", ret); return ret; } return da9063_device_init(da9063, i2c->irq); } static int da9063_i2c_remove(struct i2c_client *i2c) { struct da9063 *da9063 = i2c_get_clientdata(i2c); da9063_device_exit(da9063); return 0; } static const struct i2c_device_id da9063_i2c_id[] = { {"da9063", PMIC_DA9063}, {}, }; MODULE_DEVICE_TABLE(i2c, da9063_i2c_id); static struct i2c_driver da9063_i2c_driver = { .driver = { .name = "da9063", .of_match_table = of_match_ptr(da9063_dt_ids), }, .probe = da9063_i2c_probe, .remove = da9063_i2c_remove, .id_table = da9063_i2c_id, }; module_i2c_driver(da9063_i2c_driver);