mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
![Adam Ward](/assets/img/avatar_default.png)
Add function which iterates the regulator descriptors for the confirmed variant ID and registers each buck. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/1fd53c3ab032ef3c8a92f80a2247381db1c09ced.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
598 lines
17 KiB
C
598 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
//
|
|
// DA9121 Single-channel dual-phase 10A buck converter
|
|
//
|
|
// Copyright (C) 2020 Axis Communications AB
|
|
//
|
|
// DA9130 Single-channel dual-phase 10A buck converter (Automotive)
|
|
// DA9217 Single-channel dual-phase 6A buck converter
|
|
// DA9122 Dual-channel single-phase 5A buck converter
|
|
// DA9131 Dual-channel single-phase 5A buck converter (Automotive)
|
|
// DA9220 Dual-channel single-phase 3A buck converter
|
|
// DA9132 Dual-channel single-phase 3A buck converter (Automotive)
|
|
//
|
|
// Copyright (C) 2020 Dialog Semiconductor
|
|
|
|
#include <linux/of_device.h>
|
|
#include <linux/of_gpio.h>
|
|
#include <linux/regulator/of_regulator.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/regulator/driver.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/err.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/regulator/da9121.h>
|
|
|
|
#include "da9121-regulator.h"
|
|
|
|
/* Chip data */
|
|
struct da9121 {
|
|
struct device *dev;
|
|
struct da9121_pdata *pdata;
|
|
struct regmap *regmap;
|
|
struct regulator_dev *rdev[DA9121_IDX_MAX];
|
|
int variant_id;
|
|
};
|
|
|
|
/* Define ranges for different variants, enabling translation to/from
|
|
* registers. Maximums give scope to allow for transients.
|
|
*/
|
|
struct da9121_range {
|
|
int val_min;
|
|
int val_max;
|
|
int val_stp;
|
|
int reg_min;
|
|
int reg_max;
|
|
};
|
|
|
|
struct da9121_range da9121_10A_2phase_current = {
|
|
.val_min = 7000000,
|
|
.val_max = 20000000,
|
|
.val_stp = 1000000,
|
|
.reg_min = 1,
|
|
.reg_max = 14,
|
|
};
|
|
|
|
struct da9121_range da9121_6A_2phase_current = {
|
|
.val_min = 7000000,
|
|
.val_max = 12000000,
|
|
.val_stp = 1000000,
|
|
.reg_min = 1,
|
|
.reg_max = 6,
|
|
};
|
|
|
|
struct da9121_range da9121_5A_1phase_current = {
|
|
.val_min = 3500000,
|
|
.val_max = 10000000,
|
|
.val_stp = 500000,
|
|
.reg_min = 1,
|
|
.reg_max = 14,
|
|
};
|
|
|
|
struct da9121_range da9121_3A_1phase_current = {
|
|
.val_min = 3500000,
|
|
.val_max = 6000000,
|
|
.val_stp = 500000,
|
|
.reg_min = 1,
|
|
.reg_max = 6,
|
|
};
|
|
|
|
struct da9121_variant_info {
|
|
int num_bucks;
|
|
int num_phases;
|
|
struct da9121_range *current_range;
|
|
};
|
|
|
|
static const struct da9121_variant_info variant_parameters[] = {
|
|
{ 1, 2, &da9121_10A_2phase_current }, //DA9121_TYPE_DA9121_DA9130
|
|
{ 2, 1, &da9121_3A_1phase_current }, //DA9121_TYPE_DA9220_DA9132
|
|
{ 2, 1, &da9121_5A_1phase_current }, //DA9121_TYPE_DA9122_DA9131
|
|
{ 1, 2, &da9121_6A_2phase_current }, //DA9121_TYPE_DA9217
|
|
};
|
|
|
|
static const struct regulator_ops da9121_buck_ops = {
|
|
.enable = regulator_enable_regmap,
|
|
.disable = regulator_disable_regmap,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
};
|
|
|
|
static struct of_regulator_match da9121_matches[] = {
|
|
[DA9121_IDX_BUCK1] = { .name = "buck1" },
|
|
[DA9121_IDX_BUCK2] = { .name = "buck2" },
|
|
};
|
|
|
|
static int da9121_of_parse_cb(struct device_node *np,
|
|
const struct regulator_desc *desc,
|
|
struct regulator_config *config)
|
|
{
|
|
struct da9121 *chip = config->driver_data;
|
|
struct da9121_pdata *pdata;
|
|
struct gpio_desc *ena_gpiod;
|
|
|
|
if (chip->pdata == NULL) {
|
|
pdata = devm_kzalloc(chip->dev, sizeof(*pdata), GFP_KERNEL);
|
|
if (!pdata)
|
|
return -ENOMEM;
|
|
} else {
|
|
pdata = chip->pdata;
|
|
}
|
|
|
|
pdata->num_buck++;
|
|
|
|
if (pdata->num_buck > variant_parameters[chip->variant_id].num_bucks) {
|
|
dev_err(chip->dev, "Error: excessive regulators for device\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ena_gpiod = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0,
|
|
GPIOD_OUT_HIGH |
|
|
GPIOD_FLAGS_BIT_NONEXCLUSIVE,
|
|
"da9121-enable");
|
|
if (!IS_ERR(ena_gpiod))
|
|
config->ena_gpiod = ena_gpiod;
|
|
|
|
if (variant_parameters[chip->variant_id].num_bucks == 2) {
|
|
uint32_t ripple_cancel;
|
|
uint32_t ripple_reg;
|
|
int ret;
|
|
|
|
if (of_property_read_u32(da9121_matches[pdata->num_buck].of_node,
|
|
"dlg,ripple-cancel", &ripple_cancel)) {
|
|
if (pdata->num_buck > 1)
|
|
ripple_reg = DA9xxx_REG_BUCK_BUCK2_7;
|
|
else
|
|
ripple_reg = DA9121_REG_BUCK_BUCK1_7;
|
|
|
|
ret = regmap_update_bits(chip->regmap, ripple_reg,
|
|
DA9xxx_MASK_BUCK_BUCKx_7_CHx_RIPPLE_CANCEL,
|
|
ripple_cancel);
|
|
if (ret < 0)
|
|
dev_err(chip->dev, "Cannot set ripple mode, err: %d\n", ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define DA9121_MIN_MV 300
|
|
#define DA9121_MAX_MV 1900
|
|
#define DA9121_STEP_MV 10
|
|
#define DA9121_MIN_SEL (DA9121_MIN_MV / DA9121_STEP_MV)
|
|
#define DA9121_N_VOLTAGES (((DA9121_MAX_MV - DA9121_MIN_MV) / DA9121_STEP_MV) \
|
|
+ 1 + DA9121_MIN_SEL)
|
|
|
|
static const struct regulator_desc da9121_reg = {
|
|
.id = DA9121_IDX_BUCK1,
|
|
.name = "da9121",
|
|
.of_match = "buck1",
|
|
.of_parse_cb = da9121_of_parse_cb,
|
|
.owner = THIS_MODULE,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.ops = &da9121_buck_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = DA9121_N_VOLTAGES,
|
|
.min_uV = DA9121_MIN_MV * 1000,
|
|
.uV_step = DA9121_STEP_MV * 1000,
|
|
.linear_min_sel = DA9121_MIN_SEL,
|
|
.vsel_reg = DA9121_REG_BUCK_BUCK1_5,
|
|
.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
|
|
.enable_reg = DA9121_REG_BUCK_BUCK1_0,
|
|
.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
|
|
/* Default value of BUCK_BUCK1_0.CH1_SRC_DVC_UP */
|
|
.ramp_delay = 20000,
|
|
/* tBUCK_EN */
|
|
.enable_time = 20,
|
|
};
|
|
|
|
static const struct regulator_desc da9220_reg[2] = {
|
|
{
|
|
.id = DA9121_IDX_BUCK1,
|
|
.name = "DA9220/DA9132 BUCK1",
|
|
.of_match = "buck1",
|
|
.of_parse_cb = da9121_of_parse_cb,
|
|
.owner = THIS_MODULE,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.ops = &da9121_buck_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = DA9121_N_VOLTAGES,
|
|
.min_uV = DA9121_MIN_MV * 1000,
|
|
.uV_step = DA9121_STEP_MV * 1000,
|
|
.linear_min_sel = DA9121_MIN_SEL,
|
|
.enable_reg = DA9121_REG_BUCK_BUCK1_0,
|
|
.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
|
|
.vsel_reg = DA9121_REG_BUCK_BUCK1_5,
|
|
.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
|
|
},
|
|
{
|
|
.id = DA9121_IDX_BUCK2,
|
|
.name = "DA9220/DA9132 BUCK2",
|
|
.of_match = "buck2",
|
|
.of_parse_cb = da9121_of_parse_cb,
|
|
.owner = THIS_MODULE,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.ops = &da9121_buck_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = DA9121_N_VOLTAGES,
|
|
.min_uV = DA9121_MIN_MV * 1000,
|
|
.uV_step = DA9121_STEP_MV * 1000,
|
|
.linear_min_sel = DA9121_MIN_SEL,
|
|
.enable_reg = DA9xxx_REG_BUCK_BUCK2_0,
|
|
.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
|
|
.vsel_reg = DA9xxx_REG_BUCK_BUCK2_5,
|
|
.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
|
|
}
|
|
};
|
|
|
|
static const struct regulator_desc da9122_reg[2] = {
|
|
{
|
|
.id = DA9121_IDX_BUCK1,
|
|
.name = "DA9122/DA9131 BUCK1",
|
|
.of_match = "buck1",
|
|
.of_parse_cb = da9121_of_parse_cb,
|
|
.owner = THIS_MODULE,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.ops = &da9121_buck_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = DA9121_N_VOLTAGES,
|
|
.min_uV = DA9121_MIN_MV * 1000,
|
|
.uV_step = DA9121_STEP_MV * 1000,
|
|
.linear_min_sel = DA9121_MIN_SEL,
|
|
.enable_reg = DA9121_REG_BUCK_BUCK1_0,
|
|
.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
|
|
.vsel_reg = DA9121_REG_BUCK_BUCK1_5,
|
|
.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
|
|
},
|
|
{
|
|
.id = DA9121_IDX_BUCK2,
|
|
.name = "DA9122/DA9131 BUCK2",
|
|
.of_match = "buck2",
|
|
.of_parse_cb = da9121_of_parse_cb,
|
|
.owner = THIS_MODULE,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.ops = &da9121_buck_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = DA9121_N_VOLTAGES,
|
|
.min_uV = DA9121_MIN_MV * 1000,
|
|
.uV_step = DA9121_STEP_MV * 1000,
|
|
.linear_min_sel = DA9121_MIN_SEL,
|
|
.enable_reg = DA9xxx_REG_BUCK_BUCK2_0,
|
|
.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
|
|
.vsel_reg = DA9xxx_REG_BUCK_BUCK2_5,
|
|
.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
|
|
}
|
|
};
|
|
|
|
static const struct regulator_desc da9217_reg = {
|
|
.id = DA9121_IDX_BUCK1,
|
|
.name = "DA9217 BUCK1",
|
|
.of_match = "buck1",
|
|
.of_parse_cb = da9121_of_parse_cb,
|
|
.owner = THIS_MODULE,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.ops = &da9121_buck_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = DA9121_N_VOLTAGES,
|
|
.min_uV = DA9121_MIN_MV * 1000,
|
|
.uV_step = DA9121_STEP_MV * 1000,
|
|
.linear_min_sel = DA9121_MIN_SEL,
|
|
.enable_reg = DA9121_REG_BUCK_BUCK1_0,
|
|
.enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN,
|
|
.vsel_reg = DA9121_REG_BUCK_BUCK1_5,
|
|
.vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT,
|
|
};
|
|
|
|
static const struct regulator_desc *local_da9121_regulators[][DA9121_IDX_MAX] = {
|
|
[DA9121_TYPE_DA9121_DA9130] = { &da9121_reg, NULL },
|
|
[DA9121_TYPE_DA9220_DA9132] = { &da9220_reg[0], &da9220_reg[1] },
|
|
[DA9121_TYPE_DA9122_DA9131] = { &da9122_reg[0], &da9122_reg[1] },
|
|
[DA9121_TYPE_DA9217] = { &da9217_reg, NULL },
|
|
};
|
|
|
|
static int da9121_set_regulator_config(struct da9121 *chip)
|
|
{
|
|
struct regulator_config config = { };
|
|
unsigned int max_matches = variant_parameters[chip->variant_id].num_bucks;
|
|
int ret = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < max_matches; i++) {
|
|
const struct regulator_desc *regl_desc =
|
|
local_da9121_regulators[chip->variant_id][i];
|
|
|
|
config.dev = chip->dev;
|
|
config.driver_data = chip;
|
|
config.regmap = chip->regmap;
|
|
|
|
chip->rdev[i] = devm_regulator_register(chip->dev,
|
|
regl_desc, &config);
|
|
if (IS_ERR(chip->rdev[i])) {
|
|
dev_err(chip->dev, "Failed to register regulator %s, %d/%d\n",
|
|
regl_desc->name, (i+1), max_matches);
|
|
ret = PTR_ERR(chip->rdev[i]);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
/* DA9121 chip register model */
|
|
static const struct regmap_range da9121_1ch_readable_ranges[] = {
|
|
regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_MASK_3),
|
|
regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3),
|
|
regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_6),
|
|
regmap_reg_range(DA9121_REG_OTP_DEVICE_ID, DA9121_REG_OTP_CONFIG_ID),
|
|
};
|
|
|
|
static const struct regmap_access_table da9121_1ch_readable_table = {
|
|
.yes_ranges = da9121_1ch_readable_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(da9121_1ch_readable_ranges),
|
|
};
|
|
|
|
static const struct regmap_range da9121_2ch_readable_ranges[] = {
|
|
regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_MASK_3),
|
|
regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3),
|
|
regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_7),
|
|
regmap_reg_range(DA9xxx_REG_BUCK_BUCK2_0, DA9xxx_REG_BUCK_BUCK2_7),
|
|
regmap_reg_range(DA9121_REG_OTP_DEVICE_ID, DA9121_REG_OTP_CONFIG_ID),
|
|
};
|
|
|
|
static const struct regmap_access_table da9121_2ch_readable_table = {
|
|
.yes_ranges = da9121_2ch_readable_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(da9121_2ch_readable_ranges),
|
|
};
|
|
|
|
static const struct regmap_range da9121_1ch_writeable_ranges[] = {
|
|
regmap_reg_range(DA9121_REG_SYS_EVENT_0, DA9121_REG_SYS_MASK_3),
|
|
regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3),
|
|
regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_2),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_4, DA9121_REG_BUCK_BUCK1_6),
|
|
};
|
|
|
|
static const struct regmap_access_table da9121_1ch_writeable_table = {
|
|
.yes_ranges = da9121_1ch_writeable_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(da9121_1ch_writeable_ranges),
|
|
};
|
|
|
|
static const struct regmap_range da9121_2ch_writeable_ranges[] = {
|
|
regmap_reg_range(DA9121_REG_SYS_EVENT_0, DA9121_REG_SYS_MASK_3),
|
|
regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3),
|
|
regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_2),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_4, DA9121_REG_BUCK_BUCK1_7),
|
|
regmap_reg_range(DA9xxx_REG_BUCK_BUCK2_0, DA9xxx_REG_BUCK_BUCK2_2),
|
|
regmap_reg_range(DA9xxx_REG_BUCK_BUCK2_4, DA9xxx_REG_BUCK_BUCK2_7),
|
|
};
|
|
|
|
static const struct regmap_access_table da9121_2ch_writeable_table = {
|
|
.yes_ranges = da9121_2ch_writeable_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(da9121_2ch_writeable_ranges),
|
|
};
|
|
|
|
|
|
static const struct regmap_range da9121_volatile_ranges[] = {
|
|
regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_EVENT_2),
|
|
regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1),
|
|
regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_6),
|
|
};
|
|
|
|
static const struct regmap_access_table da9121_volatile_table = {
|
|
.yes_ranges = da9121_volatile_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(da9121_volatile_ranges),
|
|
};
|
|
|
|
/* DA9121 regmap config for 1 channel variants */
|
|
static struct regmap_config da9121_1ch_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = DA9121_REG_OTP_CONFIG_ID,
|
|
.rd_table = &da9121_1ch_readable_table,
|
|
.wr_table = &da9121_1ch_writeable_table,
|
|
.volatile_table = &da9121_volatile_table,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
/* DA9121 regmap config for 2 channel variants */
|
|
static struct regmap_config da9121_2ch_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = DA9121_REG_OTP_CONFIG_ID,
|
|
.rd_table = &da9121_2ch_readable_table,
|
|
.wr_table = &da9121_2ch_writeable_table,
|
|
.volatile_table = &da9121_volatile_table,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip)
|
|
{
|
|
u32 device_id;
|
|
u8 chip_id = chip->variant_id;
|
|
u32 variant_id;
|
|
u8 variant_mrc, variant_vrc;
|
|
char *type;
|
|
const char *name;
|
|
bool config_match = false;
|
|
int ret = 0;
|
|
|
|
ret = regmap_read(chip->regmap, DA9121_REG_OTP_DEVICE_ID, &device_id);
|
|
if (ret < 0) {
|
|
dev_err(chip->dev, "Cannot read device ID: %d\n", ret);
|
|
goto error;
|
|
}
|
|
|
|
ret = regmap_read(chip->regmap, DA9121_REG_OTP_VARIANT_ID, &variant_id);
|
|
if (ret < 0) {
|
|
dev_err(chip->dev, "Cannot read variant ID: %d\n", ret);
|
|
goto error;
|
|
}
|
|
|
|
if (device_id != DA9121_DEVICE_ID) {
|
|
dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
|
|
ret = -ENODEV;
|
|
goto error;
|
|
}
|
|
|
|
variant_vrc = variant_id & DA9121_MASK_OTP_VARIANT_ID_VRC;
|
|
|
|
switch (variant_vrc) {
|
|
case DA9121_VARIANT_VRC:
|
|
type = "DA9121/DA9130";
|
|
config_match = (chip_id == DA9121_TYPE_DA9121_DA9130);
|
|
break;
|
|
case DA9220_VARIANT_VRC:
|
|
type = "DA9220/DA9132";
|
|
config_match = (chip_id == DA9121_TYPE_DA9220_DA9132);
|
|
break;
|
|
case DA9122_VARIANT_VRC:
|
|
type = "DA9122/DA9131";
|
|
config_match = (chip_id == DA9121_TYPE_DA9122_DA9131);
|
|
break;
|
|
case DA9217_VARIANT_VRC:
|
|
type = "DA9217";
|
|
config_match = (chip_id == DA9121_TYPE_DA9217);
|
|
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);
|
|
|
|
if (!config_match) {
|
|
dev_err(chip->dev, "Device tree configuration '%s' does not match detected device.\n", name);
|
|
ret = -EINVAL;
|
|
goto error;
|
|
}
|
|
|
|
variant_mrc = (variant_id & DA9121_MASK_OTP_VARIANT_ID_MRC)
|
|
>> DA9121_SHIFT_OTP_VARIANT_ID_MRC;
|
|
|
|
if ((device_id == DA9121_DEVICE_ID) &&
|
|
(variant_mrc < DA9121_VARIANT_MRC_BASE)) {
|
|
dev_err(chip->dev,
|
|
"Cannot support variant MRC: 0x%02X\n", variant_mrc);
|
|
ret = -EINVAL;
|
|
}
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static int da9121_assign_chip_model(struct i2c_client *i2c,
|
|
struct da9121 *chip)
|
|
{
|
|
struct regmap_config *regmap;
|
|
int ret = 0;
|
|
|
|
chip->dev = &i2c->dev;
|
|
|
|
switch (chip->variant_id) {
|
|
case DA9121_TYPE_DA9121_DA9130:
|
|
fallthrough;
|
|
case DA9121_TYPE_DA9217:
|
|
regmap = &da9121_1ch_regmap_config;
|
|
break;
|
|
case DA9121_TYPE_DA9122_DA9131:
|
|
fallthrough;
|
|
case DA9121_TYPE_DA9220_DA9132:
|
|
regmap = &da9121_2ch_regmap_config;
|
|
break;
|
|
}
|
|
|
|
/* Set these up for of_regulator_match call which may want .of_map_modes */
|
|
da9121_matches[0].desc = local_da9121_regulators[chip->variant_id][0];
|
|
da9121_matches[1].desc = local_da9121_regulators[chip->variant_id][1];
|
|
|
|
chip->regmap = devm_regmap_init_i2c(i2c, regmap);
|
|
if (IS_ERR(chip->regmap)) {
|
|
ret = PTR_ERR(chip->regmap);
|
|
dev_err(chip->dev, "Failed to configure a register map: %d\n",
|
|
ret);
|
|
}
|
|
|
|
ret = da9121_check_device_type(i2c, chip);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct of_device_id da9121_dt_ids[] = {
|
|
{ .compatible = "dlg,da9121", .data = (void *) DA9121_TYPE_DA9121_DA9130 },
|
|
{ .compatible = "dlg,da9130", .data = (void *) DA9121_TYPE_DA9121_DA9130 },
|
|
{ .compatible = "dlg,da9217", .data = (void *) DA9121_TYPE_DA9217 },
|
|
{ .compatible = "dlg,da9122", .data = (void *) DA9121_TYPE_DA9122_DA9131 },
|
|
{ .compatible = "dlg,da9131", .data = (void *) DA9121_TYPE_DA9122_DA9131 },
|
|
{ .compatible = "dlg,da9220", .data = (void *) DA9121_TYPE_DA9220_DA9132 },
|
|
{ .compatible = "dlg,da9132", .data = (void *) DA9121_TYPE_DA9220_DA9132 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, da9121_dt_ids);
|
|
|
|
static inline int da9121_of_get_id(struct device *dev)
|
|
{
|
|
const struct of_device_id *id = of_match_device(da9121_dt_ids, dev);
|
|
|
|
if (!id) {
|
|
dev_err(dev, "%s: Failed\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
return (uintptr_t)id->data;
|
|
}
|
|
|
|
static int da9121_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct da9121 *chip;
|
|
int ret = 0;
|
|
|
|
chip = devm_kzalloc(&i2c->dev, sizeof(struct da9121), GFP_KERNEL);
|
|
if (!chip) {
|
|
ret = -ENOMEM;
|
|
goto error;
|
|
}
|
|
|
|
chip->pdata = i2c->dev.platform_data;
|
|
chip->variant_id = da9121_of_get_id(&i2c->dev);
|
|
|
|
ret = da9121_assign_chip_model(i2c, chip);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = da9121_set_regulator_config(chip);
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
static const struct i2c_device_id da9121_i2c_id[] = {
|
|
{"da9121", DA9121_TYPE_DA9121_DA9130},
|
|
{"da9130", DA9121_TYPE_DA9121_DA9130},
|
|
{"da9217", DA9121_TYPE_DA9217},
|
|
{"da9122", DA9121_TYPE_DA9122_DA9131},
|
|
{"da9131", DA9121_TYPE_DA9122_DA9131},
|
|
{"da9220", DA9121_TYPE_DA9220_DA9132},
|
|
{"da9132", DA9121_TYPE_DA9220_DA9132},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, da9121_i2c_id);
|
|
|
|
static struct i2c_driver da9121_regulator_driver = {
|
|
.driver = {
|
|
.name = "da9121",
|
|
.of_match_table = of_match_ptr(da9121_dt_ids),
|
|
},
|
|
.probe = da9121_i2c_probe,
|
|
.id_table = da9121_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(da9121_regulator_driver);
|
|
|
|
MODULE_LICENSE("GPL v2");
|