forked from luck/tmp_suning_uos_patched
9cb42e2a8e
Add register definitions for DA9063 AD (0x3) silicon variant ID the ability to choose the silicon variant at run-time using regmap configuration. This patch also adds RTC support for the AD silicon changes. It adds both BB and AD support as regmap ranges and then makes the distinction between the two tables at run-time. This allows both AD and BB silicon variants to be supported at the same time. Suggested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Opensource [Steve Twiss] <stwiss.opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
267 lines
6.9 KiB
C
267 lines
6.9 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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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 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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.owner = THIS_MODULE,
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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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