linux/drivers/mfd/da9062-core.c

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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>
2019-05-27 06:55:06 +00:00
// 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/of_device.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
#define DA9062_IRQ_LOW 0
#define DA9062_IRQ_HIGH 1
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 const struct resource da9061_core_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
};
static const struct resource da9061_regulators_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
};
static const struct resource da9061_thermal_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
};
static const struct resource da9061_wdt_resources[] = {
DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
};
static const 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 const struct resource da9062_core_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
};
static const struct resource da9062_regulators_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
};
static const struct resource da9062_thermal_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
};
static const struct resource da9062_wdt_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
};
static const 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 const struct resource da9062_onkey_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
};
static const struct resource da9062_gpio_resources[] = {
DEFINE_RES_NAMED(DA9062_IRQ_GPI0, 1, "GPI0", IORESOURCE_IRQ),
DEFINE_RES_NAMED(DA9062_IRQ_GPI1, 1, "GPI1", IORESOURCE_IRQ),
DEFINE_RES_NAMED(DA9062_IRQ_GPI2, 1, "GPI2", IORESOURCE_IRQ),
DEFINE_RES_NAMED(DA9062_IRQ_GPI3, 1, "GPI3", IORESOURCE_IRQ),
DEFINE_RES_NAMED(DA9062_IRQ_GPI4, 1, "GPI4", 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-watchdog",
},
{
.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",
},
{
.name = "da9062-gpio",
.num_resources = ARRAY_SIZE(da9062_gpio_resources),
.resources = da9062_gpio_resources,
.of_compatible = "dlg,da9062-gpio",
},
};
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 u32 da9062_configure_irq_type(struct da9062 *chip, int irq, u32 *trigger)
{
u32 irq_type = 0;
struct irq_data *irq_data = irq_get_irq_data(irq);
if (!irq_data) {
dev_err(chip->dev, "Invalid IRQ: %d\n", irq);
return -EINVAL;
}
*trigger = irqd_get_trigger_type(irq_data);
switch (*trigger) {
case IRQ_TYPE_LEVEL_HIGH:
irq_type = DA9062_IRQ_HIGH;
break;
case IRQ_TYPE_LEVEL_LOW:
irq_type = DA9062_IRQ_LOW;
break;
default:
dev_warn(chip->dev, "Unsupported IRQ type: %d\n", *trigger);
return -EINVAL;
}
return regmap_update_bits(chip->regmap, DA9062AA_CONFIG_A,
DA9062AA_IRQ_TYPE_MASK,
irq_type << DA9062AA_IRQ_TYPE_SHIFT);
}
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_CONFIG_A, DA9062AA_CONFIG_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_CONFIG_A, DA9062AA_CONFIG_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_CONFIG_J, DA9062AA_CONFIG_J),
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_CONFIG_J, DA9062AA_CONFIG_J),
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;
unsigned int irq_base;
const struct mfd_cell *cell;
const struct regmap_irq_chip *irq_chip;
const struct regmap_config *config;
int cell_num;
u32 trigger_type = 0;
int ret;
chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
if (i2c->dev.of_node)
chip->chip_type = (uintptr_t)of_device_get_match_data(&i2c->dev);
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;
}
/* If SMBus is not available and only I2C is possible, enter I2C mode */
if (i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) {
dev_info(chip->dev, "Entering I2C mode!\n");
ret = regmap_clear_bits(chip->regmap, DA9062AA_CONFIG_J,
DA9062AA_TWOWIRE_TO_MASK);
if (ret < 0) {
dev_err(chip->dev, "Failed to set Two-Wire Bus Mode.\n");
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 = da9062_configure_irq_type(chip, i2c->irq, &trigger_type);
if (ret < 0) {
dev_err(chip->dev, "Failed to configure IRQ type\n");
return ret;
}
ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
trigger_type | IRQF_SHARED | IRQF_ONESHOT,
-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;
}
i2c: Make remove callback return void The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Crt Mori <cmo@melexis.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/* Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5 Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860 Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-15 08:02:30 +00:00
static void 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);
}
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 = 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");