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eeprom: at24: use devm_i2c_new_dummy_device() 

Now that it's upstream, use the resource managed version
of i2c_new_dummy_device().

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
This commit is contained in:
Bartosz Golaszewski 2019-05-20 09:10:41 +02:00
parent a188339ca5
commit e7308628d0
1 changed files with 9 additions and 29 deletions
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38
drivers/misc/eeprom/at24.c
View File

@ -507,14 +507,6 @@ static const struct at24_chip_data *at24_get_chip_data(struct device *dev)
return cdata;
}
static void at24_remove_dummy_clients(struct at24_data *at24)
{
int i;
for (i = 1; i < at24->num_addresses; i++)
i2c_unregister_device(at24->client[i].client);
}
static int at24_make_dummy_client(struct at24_data *at24, unsigned int index,
struct regmap_config *regmap_config)
{
@ -527,18 +519,14 @@ static int at24_make_dummy_client(struct at24_data *at24, unsigned int index,
dev = &base_client->dev;
addr = base_client->addr + index;
dummy_client = i2c_new_dummy(base_client->adapter,
base_client->addr + index);
if (!dummy_client) {
dev_err(dev, "address 0x%02x unavailable\n", addr);
return -EADDRINUSE;
}
dummy_client = devm_i2c_new_dummy_device(dev, base_client->adapter,
base_client->addr + index);
if (IS_ERR(dummy_client))
return PTR_ERR(dummy_client);
regmap = devm_regmap_init_i2c(dummy_client, regmap_config);
if (IS_ERR(regmap)) {
i2c_unregister_device(dummy_client);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
}
at24->client[index].client = dummy_client;
at24->client[index].regmap = regmap;
@ -693,10 +681,8 @@ static int at24_probe(struct i2c_client *client)
/* use dummy devices for multiple-address chips */
for (i = 1; i < num_addresses; i++) {
err = at24_make_dummy_client(at24, i, &regmap_config);
if (err) {
at24_remove_dummy_clients(at24);
if (err)
return err;
}
}
i2c_set_clientdata(client, at24);
@ -713,7 +699,7 @@ static int at24_probe(struct i2c_client *client)
pm_runtime_idle(dev);
if (err) {
err = -ENODEV;
goto err_clients;
goto err_runtime_pm;
}
nvmem_config.name = dev_name(dev);
@ -733,7 +719,7 @@ static int at24_probe(struct i2c_client *client)
at24->nvmem = devm_nvmem_register(dev, &nvmem_config);
if (IS_ERR(at24->nvmem)) {
err = PTR_ERR(at24->nvmem);
goto err_clients;
goto err_runtime_pm;
}
dev_info(dev, "%u byte %s EEPROM, %s, %u bytes/write\n",
@ -742,8 +728,7 @@ static int at24_probe(struct i2c_client *client)
return 0;
err_clients:
at24_remove_dummy_clients(at24);
err_runtime_pm:
pm_runtime_disable(dev);
return err;
@ -751,11 +736,6 @@ static int at24_probe(struct i2c_client *client)
static int at24_remove(struct i2c_client *client)
{
struct at24_data *at24;
at24 = i2c_get_clientdata(client);
at24_remove_dummy_clients(at24);
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);