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c942fddf87
linux/drivers/mfd/da9062-core.c
Thomas Gleixner c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 
Based on 3 normalized pattern(s):

  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 this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  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 [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  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 [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Core, IRQ and I2C device driver for DA9061 and DA9062 PMICs
* Copyright (C) 2015-2017 Dialog Semiconductor
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/regmap.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/i2c.h>
#include <linux/mfd/da9062/core.h>
#include <linux/mfd/da9062/registers.h>
#include <linux/regulator/of_regulator.h>
#define DA9062_REG_EVENT_A_OFFSET 0
#define DA9062_REG_EVENT_B_OFFSET 1
#define DA9062_REG_EVENT_C_OFFSET 2
static struct regmap_irq da9061_irqs[] = {
/* EVENT A */
[DA9061_IRQ_ONKEY] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_NONKEY_MASK,
},
[DA9061_IRQ_WDG_WARN] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_WDG_WARN_MASK,
},
[DA9061_IRQ_SEQ_RDY] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_SEQ_RDY_MASK,
},
/* EVENT B */
[DA9061_IRQ_TEMP] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_TEMP_MASK,
},
[DA9061_IRQ_LDO_LIM] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_LDO_LIM_MASK,
},
[DA9061_IRQ_DVC_RDY] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_DVC_RDY_MASK,
},
[DA9061_IRQ_VDD_WARN] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_VDD_WARN_MASK,
},
/* EVENT C */
[DA9061_IRQ_GPI0] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI0_MASK,
},
[DA9061_IRQ_GPI1] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI1_MASK,
},
[DA9061_IRQ_GPI2] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI2_MASK,
},
[DA9061_IRQ_GPI3] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI3_MASK,
},
[DA9061_IRQ_GPI4] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI4_MASK,
},
};
static struct regmap_irq_chip da9061_irq_chip = {
.name = "da9061-irq",
.irqs = da9061_irqs,
.num_irqs = DA9061_NUM_IRQ,
.num_regs = 3,
.status_base = DA9062AA_EVENT_A,
.mask_base = DA9062AA_IRQ_MASK_A,
.ack_base = DA9062AA_EVENT_A,
};
static struct regmap_irq da9062_irqs[] = {
/* EVENT A */
[DA9062_IRQ_ONKEY] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_NONKEY_MASK,
},
[DA9062_IRQ_ALARM] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_ALARM_MASK,
},
[DA9062_IRQ_TICK] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_TICK_MASK,
},
[DA9062_IRQ_WDG_WARN] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_WDG_WARN_MASK,
},
[DA9062_IRQ_SEQ_RDY] = {
.reg_offset = DA9062_REG_EVENT_A_OFFSET,
.mask = DA9062AA_M_SEQ_RDY_MASK,
},
/* EVENT B */
[DA9062_IRQ_TEMP] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_TEMP_MASK,
},
[DA9062_IRQ_LDO_LIM] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_LDO_LIM_MASK,
},
[DA9062_IRQ_DVC_RDY] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_DVC_RDY_MASK,
},
[DA9062_IRQ_VDD_WARN] = {
.reg_offset = DA9062_REG_EVENT_B_OFFSET,
.mask = DA9062AA_M_VDD_WARN_MASK,
},
/* EVENT C */
[DA9062_IRQ_GPI0] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI0_MASK,
},
[DA9062_IRQ_GPI1] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI1_MASK,
},
[DA9062_IRQ_GPI2] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI2_MASK,
},
[DA9062_IRQ_GPI3] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI3_MASK,
},
[DA9062_IRQ_GPI4] = {
.reg_offset = DA9062_REG_EVENT_C_OFFSET,
.mask = DA9062AA_M_GPI4_MASK,
},
};
static struct regmap_irq_chip da9062_irq_chip = {
.name = "da9062-irq",
.irqs = da9062_irqs,
.num_irqs = DA9062_NUM_IRQ,
.num_regs = 3,
.status_base = DA9062AA_EVENT_A,
.mask_base = DA9062AA_IRQ_MASK_A,
.ack_base = DA9062AA_EVENT_A,
};
static struct resource da9061_core_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
};
static struct resource da9061_regulators_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
};
static struct resource da9061_thermal_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
};
static struct resource da9061_wdt_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
};
static struct resource da9061_onkey_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"),
};
static const struct mfd_cell da9061_devs[] = {
{
.name = "da9061-core",
.num_resources = ARRAY_SIZE(da9061_core_resources),
.resources = da9061_core_resources,
},
{
.name = "da9062-regulators",
.num_resources = ARRAY_SIZE(da9061_regulators_resources),
.resources = da9061_regulators_resources,
},
{
.name = "da9061-watchdog",
.num_resources = ARRAY_SIZE(da9061_wdt_resources),
.resources = da9061_wdt_resources,
.of_compatible = "dlg,da9061-watchdog",
},
{
.name = "da9061-thermal",
.num_resources = ARRAY_SIZE(da9061_thermal_resources),
.resources = da9061_thermal_resources,
.of_compatible = "dlg,da9061-thermal",
},
{
.name = "da9061-onkey",
.num_resources = ARRAY_SIZE(da9061_onkey_resources),
.resources = da9061_onkey_resources,
.of_compatible = "dlg,da9061-onkey",
},
};
static struct resource da9062_core_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
};
static struct resource da9062_regulators_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
};
static struct resource da9062_thermal_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
};
static struct resource da9062_wdt_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
};
static struct resource da9062_rtc_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_ALARM, 1, "ALARM", IORESOURCE_IRQ),
DEFINE_RES_NAMED(DA9062_IRQ_TICK, 1, "TICK", IORESOURCE_IRQ),
};
static struct resource da9062_onkey_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
};
static const struct mfd_cell da9062_devs[] = {
{
.name = "da9062-core",
.num_resources = ARRAY_SIZE(da9062_core_resources),
.resources = da9062_core_resources,
},
{
.name = "da9062-regulators",
.num_resources = ARRAY_SIZE(da9062_regulators_resources),
.resources = da9062_regulators_resources,
},
{
.name = "da9062-watchdog",
.num_resources = ARRAY_SIZE(da9062_wdt_resources),
.resources = da9062_wdt_resources,
.of_compatible = "dlg,da9062-wdt",
},
{
.name = "da9062-thermal",
.num_resources = ARRAY_SIZE(da9062_thermal_resources),
.resources = da9062_thermal_resources,
.of_compatible = "dlg,da9062-thermal",
},
{
.name = "da9062-rtc",
.num_resources = ARRAY_SIZE(da9062_rtc_resources),
.resources = da9062_rtc_resources,
.of_compatible = "dlg,da9062-rtc",
},
{
.name = "da9062-onkey",
.num_resources = ARRAY_SIZE(da9062_onkey_resources),
.resources = da9062_onkey_resources,
.of_compatible = "dlg,da9062-onkey",
},
};
static int da9062_clear_fault_log(struct da9062 *chip)
{
int ret;
int fault_log;
ret = regmap_read(chip->regmap, DA9062AA_FAULT_LOG, &fault_log);
if (ret < 0)
return ret;
if (fault_log) {
if (fault_log & DA9062AA_TWD_ERROR_MASK)
dev_dbg(chip->dev, "Fault log entry detected: TWD_ERROR\n");
if (fault_log & DA9062AA_POR_MASK)
dev_dbg(chip->dev, "Fault log entry detected: POR\n");
if (fault_log & DA9062AA_VDD_FAULT_MASK)
dev_dbg(chip->dev, "Fault log entry detected: VDD_FAULT\n");
if (fault_log & DA9062AA_VDD_START_MASK)
dev_dbg(chip->dev, "Fault log entry detected: VDD_START\n");
if (fault_log & DA9062AA_TEMP_CRIT_MASK)
dev_dbg(chip->dev, "Fault log entry detected: TEMP_CRIT\n");
if (fault_log & DA9062AA_KEY_RESET_MASK)
dev_dbg(chip->dev, "Fault log entry detected: KEY_RESET\n");
if (fault_log & DA9062AA_NSHUTDOWN_MASK)
dev_dbg(chip->dev, "Fault log entry detected: NSHUTDOWN\n");
if (fault_log & DA9062AA_WAIT_SHUT_MASK)
dev_dbg(chip->dev, "Fault log entry detected: WAIT_SHUT\n");
ret = regmap_write(chip->regmap, DA9062AA_FAULT_LOG,
fault_log);
}
return ret;
}
static int da9062_get_device_type(struct da9062 *chip)
{
int device_id, variant_id, variant_mrc, variant_vrc;
char *type;
int ret;
ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id);
if (ret < 0) {
dev_err(chip->dev, "Cannot read chip ID.\n");
return -EIO;
}
if (device_id != DA9062_PMIC_DEVICE_ID) {
dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
return -ENODEV;
}
ret = regmap_read(chip->regmap, DA9062AA_VARIANT_ID, &variant_id);
if (ret < 0) {
dev_err(chip->dev, "Cannot read chip variant id.\n");
return -EIO;
}
variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT;
switch (variant_vrc) {
case DA9062_PMIC_VARIANT_VRC_DA9061:
type = "DA9061";
break;
case DA9062_PMIC_VARIANT_VRC_DA9062:
type = "DA9062";
break;
default:
type = "Unknown";
break;
}
dev_info(chip->dev,
"Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
device_id, variant_id, type);
variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT;
if (variant_mrc < DA9062_PMIC_VARIANT_MRC_AA) {
dev_err(chip->dev,
"Cannot support variant MRC: 0x%02X\n", variant_mrc);
return -ENODEV;
}
return ret;
}
static const struct regmap_range da9061_aa_readable_ranges[] = {
regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4),
regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT),
regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C),
regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG),
regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E),
regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K),
regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M),
regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID),
};
static const struct regmap_range da9061_aa_writeable_ranges[] = {
regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON),
regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C),
regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4),
regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT),
regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C),
regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG),
regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
};
static const struct regmap_range da9061_aa_volatile_ranges[] = {
regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B),
regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F),
regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
};
static const struct regmap_access_table da9061_aa_readable_table = {
.yes_ranges = da9061_aa_readable_ranges,
.n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges),
};
static const struct regmap_access_table da9061_aa_writeable_table = {
.yes_ranges = da9061_aa_writeable_ranges,
.n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges),
};
static const struct regmap_access_table da9061_aa_volatile_table = {
.yes_ranges = da9061_aa_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges),
};
static const struct regmap_range_cfg da9061_range_cfg[] = {
{
.range_min = DA9062AA_PAGE_CON,
.range_max = DA9062AA_CONFIG_ID,
.selector_reg = DA9062AA_PAGE_CON,
.selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
.selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
.window_start = 0,
.window_len = 256,
}
};
static struct regmap_config da9061_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.ranges = da9061_range_cfg,
.num_ranges = ARRAY_SIZE(da9061_range_cfg),
.max_register = DA9062AA_CONFIG_ID,
.cache_type = REGCACHE_RBTREE,
.rd_table = &da9061_aa_readable_table,
.wr_table = &da9061_aa_writeable_table,
.volatile_table = &da9061_aa_volatile_table,
};
static const struct regmap_range da9062_aa_readable_ranges[] = {
regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT),
regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG),
regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A),
regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B),
regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT),
regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E),
regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K),
regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M),
regmap_reg_range(DA9062AA_TRIM_CLDR, DA9062AA_GP_ID_19),
regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID),
};
static const struct regmap_range da9062_aa_writeable_ranges[] = {
regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON),
regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C),
regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT),
regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_ALARM_Y),
regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG),
regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A),
regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B),
regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT),
regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
};
static const struct regmap_range da9062_aa_volatile_ranges[] = {
regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B),
regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F),
regmap_reg_range(DA9062AA_BUCK2_CONT, DA9062AA_BUCK4_CONT),
regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
regmap_reg_range(DA9062AA_EN_32K, DA9062AA_EN_32K),
};
static const struct regmap_access_table da9062_aa_readable_table = {
.yes_ranges = da9062_aa_readable_ranges,
.n_yes_ranges = ARRAY_SIZE(da9062_aa_readable_ranges),
};
static const struct regmap_access_table da9062_aa_writeable_table = {
.yes_ranges = da9062_aa_writeable_ranges,
.n_yes_ranges = ARRAY_SIZE(da9062_aa_writeable_ranges),
};
static const struct regmap_access_table da9062_aa_volatile_table = {
.yes_ranges = da9062_aa_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(da9062_aa_volatile_ranges),
};
static const struct regmap_range_cfg da9062_range_cfg[] = {
{
.range_min = DA9062AA_PAGE_CON,
.range_max = DA9062AA_CONFIG_ID,
.selector_reg = DA9062AA_PAGE_CON,
.selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
.selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
.window_start = 0,
.window_len = 256,
}
};
static struct regmap_config da9062_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.ranges = da9062_range_cfg,
.num_ranges = ARRAY_SIZE(da9062_range_cfg),
.max_register = DA9062AA_CONFIG_ID,
.cache_type = REGCACHE_RBTREE,
.rd_table = &da9062_aa_readable_table,
.wr_table = &da9062_aa_writeable_table,
.volatile_table = &da9062_aa_volatile_table,
};
static const struct of_device_id da9062_dt_ids[] = {
{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },
{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
{ }
};
MODULE_DEVICE_TABLE(of, da9062_dt_ids);
static int da9062_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct da9062 *chip;
const struct of_device_id *match;
unsigned int irq_base;
const struct mfd_cell *cell;
const struct regmap_irq_chip *irq_chip;
const struct regmap_config *config;
int cell_num;
int ret;
chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
if (i2c->dev.of_node) {
match = of_match_node(da9062_dt_ids, i2c->dev.of_node);
if (!match)
return -EINVAL;
chip->chip_type = (uintptr_t)match->data;
} else {
chip->chip_type = id->driver_data;
}
i2c_set_clientdata(i2c, chip);
chip->dev = &i2c->dev;
if (!i2c->irq) {
dev_err(chip->dev, "No IRQ configured\n");
return -EINVAL;
}
switch (chip->chip_type) {
case COMPAT_TYPE_DA9061:
cell = da9061_devs;
cell_num = ARRAY_SIZE(da9061_devs);
irq_chip = &da9061_irq_chip;
config = &da9061_regmap_config;
break;
case COMPAT_TYPE_DA9062:
cell = da9062_devs;
cell_num = ARRAY_SIZE(da9062_devs);
irq_chip = &da9062_irq_chip;
config = &da9062_regmap_config;
break;
default:
dev_err(chip->dev, "Unrecognised chip type\n");
return -ENODEV;
}
chip->regmap = devm_regmap_init_i2c(i2c, config);
if (IS_ERR(chip->regmap)) {
ret = PTR_ERR(chip->regmap);
dev_err(chip->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
ret = da9062_clear_fault_log(chip);
if (ret < 0)
dev_warn(chip->dev, "Cannot clear fault log\n");
ret = da9062_get_device_type(chip);
if (ret)
return ret;
ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
-1, irq_chip,
&chip->regmap_irq);
if (ret) {
dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
i2c->irq, ret);
return ret;
}
irq_base = regmap_irq_chip_get_base(chip->regmap_irq);
ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
cell_num, NULL, irq_base,
NULL);
if (ret) {
dev_err(chip->dev, "Cannot register child devices\n");
regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
return ret;
}
return ret;
}
static int da9062_i2c_remove(struct i2c_client *i2c)
{
struct da9062 *chip = i2c_get_clientdata(i2c);
mfd_remove_devices(chip->dev);
regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
return 0;
}
static const struct i2c_device_id da9062_i2c_id[] = {
{ "da9061", COMPAT_TYPE_DA9061 },
{ "da9062", COMPAT_TYPE_DA9062 },
{ },
};
MODULE_DEVICE_TABLE(i2c, da9062_i2c_id);
static struct i2c_driver da9062_i2c_driver = {
.driver = {
.name = "da9062",
.of_match_table = of_match_ptr(da9062_dt_ids),
},
.probe = da9062_i2c_probe,
.remove = da9062_i2c_remove,
.id_table = da9062_i2c_id,
};
module_i2c_driver(da9062_i2c_driver);
MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062");
MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>");
MODULE_LICENSE("GPL");
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