244 lines
8.8 KiB
C
244 lines
8.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/* I2C support for Dialog DA9063
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*
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* Copyright 2012 Dialog Semiconductor Ltd.
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* Copyright 2013 Philipp Zabel, Pengutronix
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*
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* Author: Krystian Garbaciak, Dialog Semiconductor
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/err.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/da9063/core.h>
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#include <linux/mfd/da9063/registers.h>
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#include <linux/of.h>
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#include <linux/regulator/of_regulator.h>
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static const struct regmap_range da9063_ad_readable_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_AD_REG_SECOND_D),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
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regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
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regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_AD_REG_GP_ID_19),
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regmap_reg_range(DA9063_REG_CHIP_ID, DA9063_REG_CHIP_VARIANT),
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};
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static const struct regmap_range da9063_ad_writeable_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
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regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
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regmap_reg_range(DA9063_REG_COUNT_S, DA9063_AD_REG_ALARM_Y),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
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regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
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regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_AD_REG_MON_REG_4),
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regmap_reg_range(DA9063_AD_REG_GP_ID_0, DA9063_AD_REG_GP_ID_19),
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};
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static const struct regmap_range da9063_ad_volatile_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
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regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
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regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
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regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
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regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
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regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_AD_REG_SECOND_D),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
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regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
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regmap_reg_range(DA9063_AD_REG_MON_REG_5, DA9063_AD_REG_MON_REG_6),
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};
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static const struct regmap_access_table da9063_ad_readable_table = {
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.yes_ranges = da9063_ad_readable_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063_ad_readable_ranges),
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};
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static const struct regmap_access_table da9063_ad_writeable_table = {
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.yes_ranges = da9063_ad_writeable_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063_ad_writeable_ranges),
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};
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static const struct regmap_access_table da9063_ad_volatile_table = {
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.yes_ranges = da9063_ad_volatile_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063_ad_volatile_ranges),
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};
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static const struct regmap_range da9063_bb_readable_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_BB_REG_SECOND_D),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
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regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
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regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_19),
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regmap_reg_range(DA9063_REG_CHIP_ID, DA9063_REG_CHIP_VARIANT),
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};
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static const struct regmap_range da9063_bb_writeable_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
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regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
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regmap_reg_range(DA9063_REG_COUNT_S, DA9063_BB_REG_ALARM_Y),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
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regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
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regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
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regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_19),
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};
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static const struct regmap_range da9063_bb_volatile_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
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regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
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regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
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regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
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regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
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regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_BB_REG_SECOND_D),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
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regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
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regmap_reg_range(DA9063_BB_REG_MON_REG_5, DA9063_BB_REG_MON_REG_6),
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};
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static const struct regmap_access_table da9063_bb_readable_table = {
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.yes_ranges = da9063_bb_readable_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063_bb_readable_ranges),
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};
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static const struct regmap_access_table da9063_bb_writeable_table = {
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.yes_ranges = da9063_bb_writeable_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063_bb_writeable_ranges),
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};
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static const struct regmap_access_table da9063_bb_volatile_table = {
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.yes_ranges = da9063_bb_volatile_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063_bb_volatile_ranges),
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};
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static const struct regmap_range da9063l_bb_readable_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_MON_A10_RES),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
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regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
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regmap_reg_range(DA9063_REG_T_OFFSET, DA9063_BB_REG_GP_ID_19),
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regmap_reg_range(DA9063_REG_CHIP_ID, DA9063_REG_CHIP_VARIANT),
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};
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static const struct regmap_range da9063l_bb_writeable_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_PAGE_CON),
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regmap_reg_range(DA9063_REG_FAULT_LOG, DA9063_REG_VSYS_MON),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_ID_32_31),
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regmap_reg_range(DA9063_REG_SEQ_A, DA9063_REG_AUTO3_LOW),
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regmap_reg_range(DA9063_REG_CONFIG_I, DA9063_BB_REG_MON_REG_4),
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regmap_reg_range(DA9063_BB_REG_GP_ID_0, DA9063_BB_REG_GP_ID_19),
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};
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static const struct regmap_range da9063l_bb_volatile_ranges[] = {
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regmap_reg_range(DA9063_REG_PAGE_CON, DA9063_REG_EVENT_D),
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regmap_reg_range(DA9063_REG_CONTROL_A, DA9063_REG_CONTROL_B),
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regmap_reg_range(DA9063_REG_CONTROL_E, DA9063_REG_CONTROL_F),
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regmap_reg_range(DA9063_REG_BCORE2_CONT, DA9063_REG_LDO11_CONT),
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regmap_reg_range(DA9063_REG_DVC_1, DA9063_REG_ADC_MAN),
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regmap_reg_range(DA9063_REG_ADC_RES_L, DA9063_REG_MON_A10_RES),
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regmap_reg_range(DA9063_REG_SEQ, DA9063_REG_SEQ),
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regmap_reg_range(DA9063_REG_EN_32K, DA9063_REG_EN_32K),
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regmap_reg_range(DA9063_BB_REG_MON_REG_5, DA9063_BB_REG_MON_REG_6),
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};
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static const struct regmap_access_table da9063l_bb_readable_table = {
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.yes_ranges = da9063l_bb_readable_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063l_bb_readable_ranges),
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};
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static const struct regmap_access_table da9063l_bb_writeable_table = {
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.yes_ranges = da9063l_bb_writeable_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063l_bb_writeable_ranges),
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};
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static const struct regmap_access_table da9063l_bb_volatile_table = {
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.yes_ranges = da9063l_bb_volatile_ranges,
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.n_yes_ranges = ARRAY_SIZE(da9063l_bb_volatile_ranges),
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};
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static const struct regmap_range_cfg da9063_range_cfg[] = {
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{
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.range_min = DA9063_REG_PAGE_CON,
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.range_max = DA9063_REG_CHIP_VARIANT,
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.selector_reg = DA9063_REG_PAGE_CON,
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.selector_mask = 1 << DA9063_I2C_PAGE_SEL_SHIFT,
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.selector_shift = DA9063_I2C_PAGE_SEL_SHIFT,
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.window_start = 0,
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.window_len = 256,
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}
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};
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static struct regmap_config da9063_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.ranges = da9063_range_cfg,
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.num_ranges = ARRAY_SIZE(da9063_range_cfg),
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.max_register = DA9063_REG_CHIP_VARIANT,
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.cache_type = REGCACHE_RBTREE,
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};
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static const struct of_device_id da9063_dt_ids[] = {
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{ .compatible = "dlg,da9063", },
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{ .compatible = "dlg,da9063l", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, da9063_dt_ids);
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static int da9063_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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struct da9063 *da9063;
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int ret;
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da9063 = devm_kzalloc(&i2c->dev, sizeof(struct da9063), GFP_KERNEL);
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if (da9063 == NULL)
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return -ENOMEM;
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i2c_set_clientdata(i2c, da9063);
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da9063->dev = &i2c->dev;
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da9063->chip_irq = i2c->irq;
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da9063->type = id->driver_data;
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if (da9063->variant_code == PMIC_DA9063_AD) {
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da9063_regmap_config.rd_table = &da9063_ad_readable_table;
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da9063_regmap_config.wr_table = &da9063_ad_writeable_table;
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da9063_regmap_config.volatile_table = &da9063_ad_volatile_table;
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} else if (da9063->type == PMIC_TYPE_DA9063L) {
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da9063_regmap_config.rd_table = &da9063l_bb_readable_table;
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da9063_regmap_config.wr_table = &da9063l_bb_writeable_table;
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da9063_regmap_config.volatile_table = &da9063l_bb_volatile_table;
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} else {
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da9063_regmap_config.rd_table = &da9063_bb_readable_table;
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da9063_regmap_config.wr_table = &da9063_bb_writeable_table;
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da9063_regmap_config.volatile_table = &da9063_bb_volatile_table;
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}
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da9063->regmap = devm_regmap_init_i2c(i2c, &da9063_regmap_config);
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if (IS_ERR(da9063->regmap)) {
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ret = PTR_ERR(da9063->regmap);
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dev_err(da9063->dev, "Failed to allocate register map: %d\n",
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ret);
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return ret;
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}
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return da9063_device_init(da9063, i2c->irq);
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}
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static const struct i2c_device_id da9063_i2c_id[] = {
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{ "da9063", PMIC_TYPE_DA9063 },
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{ "da9063l", PMIC_TYPE_DA9063L },
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{},
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};
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MODULE_DEVICE_TABLE(i2c, da9063_i2c_id);
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static struct i2c_driver da9063_i2c_driver = {
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.driver = {
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.name = "da9063",
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.of_match_table = of_match_ptr(da9063_dt_ids),
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},
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.probe = da9063_i2c_probe,
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.id_table = da9063_i2c_id,
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};
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module_i2c_driver(da9063_i2c_driver);
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