275 lines
7.1 KiB
C
275 lines
7.1 KiB
C
/* da9063-i2c.c: Interrupt 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 <krystian.garbaciak@diasemi.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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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/pdata.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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{
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.range_min = DA9063_REG_PAGE_CON,
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.range_max = DA9063_AD_REG_SECOND_D,
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}, {
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.range_min = DA9063_REG_SEQ,
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.range_max = DA9063_REG_ID_32_31,
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}, {
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.range_min = DA9063_REG_SEQ_A,
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.range_max = DA9063_REG_AUTO3_LOW,
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}, {
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.range_min = DA9063_REG_T_OFFSET,
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.range_max = DA9063_AD_REG_GP_ID_19,
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}, {
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.range_min = DA9063_REG_CHIP_ID,
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.range_max = DA9063_REG_CHIP_VARIANT,
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},
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};
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static const struct regmap_range da9063_ad_writeable_ranges[] = {
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{
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.range_min = DA9063_REG_PAGE_CON,
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.range_max = DA9063_REG_PAGE_CON,
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}, {
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.range_min = DA9063_REG_FAULT_LOG,
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.range_max = DA9063_REG_VSYS_MON,
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}, {
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.range_min = DA9063_REG_COUNT_S,
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.range_max = DA9063_AD_REG_ALARM_Y,
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}, {
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.range_min = DA9063_REG_SEQ,
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.range_max = DA9063_REG_ID_32_31,
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}, {
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.range_min = DA9063_REG_SEQ_A,
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.range_max = DA9063_REG_AUTO3_LOW,
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}, {
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.range_min = DA9063_REG_CONFIG_I,
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.range_max = DA9063_AD_REG_MON_REG_4,
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}, {
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.range_min = DA9063_AD_REG_GP_ID_0,
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.range_max = DA9063_AD_REG_GP_ID_19,
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},
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};
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static const struct regmap_range da9063_ad_volatile_ranges[] = {
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{
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.range_min = DA9063_REG_STATUS_A,
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.range_max = DA9063_REG_EVENT_D,
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}, {
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.range_min = DA9063_REG_CONTROL_F,
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.range_max = DA9063_REG_CONTROL_F,
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}, {
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.range_min = DA9063_REG_ADC_MAN,
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.range_max = DA9063_REG_ADC_MAN,
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}, {
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.range_min = DA9063_REG_ADC_RES_L,
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.range_max = DA9063_AD_REG_SECOND_D,
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}, {
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.range_min = DA9063_AD_REG_MON_REG_5,
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.range_max = DA9063_AD_REG_MON_REG_6,
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},
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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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{
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.range_min = DA9063_REG_PAGE_CON,
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.range_max = DA9063_BB_REG_SECOND_D,
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}, {
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.range_min = DA9063_REG_SEQ,
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.range_max = DA9063_REG_ID_32_31,
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}, {
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.range_min = DA9063_REG_SEQ_A,
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.range_max = DA9063_REG_AUTO3_LOW,
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}, {
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.range_min = DA9063_REG_T_OFFSET,
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.range_max = DA9063_BB_REG_GP_ID_19,
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}, {
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.range_min = DA9063_REG_CHIP_ID,
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.range_max = DA9063_REG_CHIP_VARIANT,
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},
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};
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static const struct regmap_range da9063_bb_writeable_ranges[] = {
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{
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.range_min = DA9063_REG_PAGE_CON,
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.range_max = DA9063_REG_PAGE_CON,
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}, {
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.range_min = DA9063_REG_FAULT_LOG,
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.range_max = DA9063_REG_VSYS_MON,
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}, {
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.range_min = DA9063_REG_COUNT_S,
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.range_max = DA9063_BB_REG_ALARM_Y,
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}, {
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.range_min = DA9063_REG_SEQ,
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.range_max = DA9063_REG_ID_32_31,
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}, {
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.range_min = DA9063_REG_SEQ_A,
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.range_max = DA9063_REG_AUTO3_LOW,
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}, {
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.range_min = DA9063_REG_CONFIG_I,
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.range_max = DA9063_BB_REG_MON_REG_4,
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}, {
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.range_min = DA9063_BB_REG_GP_ID_0,
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.range_max = DA9063_BB_REG_GP_ID_19,
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},
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};
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static const struct regmap_range da9063_bb_volatile_ranges[] = {
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{
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.range_min = DA9063_REG_STATUS_A,
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.range_max = DA9063_REG_EVENT_D,
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}, {
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.range_min = DA9063_REG_CONTROL_F,
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.range_max = DA9063_REG_CONTROL_F,
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}, {
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.range_min = DA9063_REG_ADC_MAN,
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.range_max = DA9063_REG_ADC_MAN,
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}, {
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.range_min = DA9063_REG_ADC_RES_L,
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.range_max = DA9063_BB_REG_SECOND_D,
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}, {
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.range_min = DA9063_BB_REG_MON_REG_5,
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.range_max = DA9063_BB_REG_MON_REG_6,
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},
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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_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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{ }
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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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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 {
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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 int da9063_i2c_remove(struct i2c_client *i2c)
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{
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struct da9063 *da9063 = i2c_get_clientdata(i2c);
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da9063_device_exit(da9063);
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return 0;
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}
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static const struct i2c_device_id da9063_i2c_id[] = {
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{"da9063", PMIC_DA9063},
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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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.remove = da9063_i2c_remove,
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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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