[PATCH 1/2] power: supply: bq24257_charger: Make chip type and name in sync

Biju Das
2023-09-02T19:33:44Z

Add struct bq2425x_chip_info to make enum bq2425x_chip and it's name in
sync and replace chip->info in struct bq24257_device and add struct
bq2425x_chip_info as match data for OF/ACPI/ID tables.

Simpilfy probe() by replacing acpi_match_device() and id lookup for
retrieving match data by using i2c_get_match_data().

Drop bq2425x_chip_name as there is no user and also drop the comment
related to syncing chip and name as it is taken care by struct
bq2425x_chip_info.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
drivers/power/supply/bq24257_charger.c | 70 +++++++++++++-------------
1 file changed, 35 insertions(+), 35 deletions(-)

diff --git a/drivers/power/supply/bq24257_charger.c b/drivers/power/supply/bq24257_charger.c
index 2852860abf86..188812f4a79b 100644
--- a/drivers/power/supply/bq24257_charger.c
+++ b/drivers/power/supply/bq24257_charger.c
@@ -35,20 +35,15 @@

#define BQ24257_ILIM_SET_DELAY 1000 /* msec */

-/*
- * When adding support for new devices make sure that enum bq2425x_chip and
- * bq2425x_chip_name[] always stay in sync!
- */
enum bq2425x_chip {
BQ24250,
BQ24251,
BQ24257,
};

-static const char *const bq2425x_chip_name[] = {
- "bq24250",
- "bq24251",
- "bq24257",
+struct bq2425x_chip_info {
+ const char *const name;
+ enum bq2425x_chip chip;
};

enum bq24257_fields {
@@ -84,7 +79,7 @@ struct bq24257_device {
struct device *dev;
struct power_supply *charger;

- enum bq2425x_chip chip;
+ const struct bq2425x_chip_info *info;

struct regmap *rmap;
struct regmap_field *rmap_fields[F_MAX_FIELDS];
@@ -329,7 +324,7 @@ static int bq24257_power_supply_get_property(struct power_supply *psy,
break;

case POWER_SUPPLY_PROP_MODEL_NAME:
- val->strval = bq2425x_chip_name[bq->chip];
+ val->strval = bq->info->name;
break;

case POWER_SUPPLY_PROP_ONLINE:
@@ -947,10 +942,8 @@ static int bq24257_fw_probe(struct bq24257_device *bq)

static int bq24257_probe(struct i2c_client *client)
{
- const struct i2c_device_id *id = i2c_client_get_device_id(client);
struct i2c_adapter *adapter = client->adapter;
struct device *dev = &client->dev;
- const struct acpi_device_id *acpi_id;
struct bq24257_device *bq;
int ret;
int i;
@@ -967,17 +960,9 @@ static int bq24257_probe(struct i2c_client *client)
bq->client = client;
bq->dev = dev;

- if (ACPI_HANDLE(dev)) {
- acpi_id = acpi_match_device(dev->driver->acpi_match_table,
- &client->dev);
- if (!acpi_id) {
- dev_err(dev, "Failed to match ACPI device\n");
- return -ENODEV;
- }
- bq->chip = (enum bq2425x_chip)acpi_id->driver_data;
- } else {
- bq->chip = (enum bq2425x_chip)id->driver_data;
- }
+ bq->info = i2c_get_match_data(client);
+ if (!bq->info)
+ return dev_err_probe(dev, -ENODEV, "Failed to match device\n");

mutex_init(&bq->lock);

@@ -1015,7 +1000,7 @@ static int bq24257_probe(struct i2c_client *client)
* used for the automatic setting of the input current limit setting so
* explicitly disable that feature.
*/
- if (bq->chip == BQ24250)
+ if (bq->info->chip == BQ24250)
bq->iilimit_autoset_enable = false;

if (bq->iilimit_autoset_enable)
@@ -1028,7 +1013,7 @@ static int bq24257_probe(struct i2c_client *client)
* the PG state. We also use a SW-based approach for all other devices
* if the PG pin is either not defined or can't be probed.
*/
- if (bq->chip != BQ24250)
+ if (bq->info->chip != BQ24250)
bq24257_pg_gpio_probe(bq);

if (PTR_ERR(bq->pg) == -EPROBE_DEFER)
@@ -1066,7 +1051,7 @@ static int bq24257_probe(struct i2c_client *client)
bq24257_irq_handler_thread,
IRQF_TRIGGER_FALLING |
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
- bq2425x_chip_name[bq->chip], bq);
+ bq->info->name, bq);
if (ret) {
dev_err(dev, "Failed to request IRQ #%d\n", client->irq);
return ret;
@@ -1132,27 +1117,42 @@ static const struct dev_pm_ops bq24257_pm = {
SET_SYSTEM_SLEEP_PM_OPS(bq24257_suspend, bq24257_resume)
};

+static const struct bq2425x_chip_info bq24250_info = {
+ .name = "bq24250",
+ .chip = BQ24250,
+};
+
+static const struct bq2425x_chip_info bq24251_info = {
+ .name = "bq24251",
+ .chip = BQ24251,
+};
+
+static const struct bq2425x_chip_info bq24257_info = {
+ .name = "bq24257",
+ .chip = BQ24257,
+};
+
static const struct i2c_device_id bq24257_i2c_ids[] = {
- { "bq24250", BQ24250 },
- { "bq24251", BQ24251 },
- { "bq24257", BQ24257 },
+ { "bq24250", (kernel_ulong_t)&bq24250_info },
+ { "bq24251", (kernel_ulong_t)&bq24251_info },
+ { "bq24257", (kernel_ulong_t)&bq24257_info },
{},
};
MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids);

static const struct of_device_id bq24257_of_match[] __maybe_unused = {
- { .compatible = "ti,bq24250", },
- { .compatible = "ti,bq24251", },
- { .compatible = "ti,bq24257", },
+ { .compatible = "ti,bq24250", &bq24250_info },
+ { .compatible = "ti,bq24251", &bq24251_info },
+ { .compatible = "ti,bq24257", &bq24257_info },
{ },
};
MODULE_DEVICE_TABLE(of, bq24257_of_match);

#ifdef CONFIG_ACPI
static const struct acpi_device_id bq24257_acpi_match[] = {
- { "BQ242500", BQ24250 },
- { "BQ242510", BQ24251 },
- { "BQ242570", BQ24257 },
+ { "BQ242500", (kernel_ulong_t)&bq24250_info },
+ { "BQ242510", (kernel_ulong_t)&bq24251_info },
+ { "BQ242570", (kernel_ulong_t)&bq24257_info },
{},
};
MODULE_DEVICE_TABLE(acpi, bq24257_acpi_match);
--
2.25.1