diff mbox series

[1/2] eeprom: at24: use devm_i2c_new_dummy_device()

Message ID 20190519204012.31861-2-brgl@bgdev.pl
State Superseded
Headers show
Series at24: use devm_i2c_new_dummy_device() | expand

Commit Message

Bartosz Golaszewski May 19, 2019, 8:40 p.m. UTC 
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Now that it's upstream, use the resource managed version
of i2c_new_dummy().

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 drivers/misc/eeprom/at24.c | 28 ++++++----------------------
 1 file changed, 6 insertions(+), 22 deletions(-)

Comments

Wolfram Sang May 19, 2019, 8:52 p.m. UTC | #1 
> Now that it's upstream, use the resource managed version
> of i2c_new_dummy().

That was fast :)

> -	dummy_client = i2c_new_dummy(base_client->adapter,
> -				     base_client->addr + index);
> +	dummy_client = devm_i2c_new_dummy_device(dev, base_client->adapter,
> +						 base_client->addr + index);
>  	if (!dummy_client) {

Oh well, the confusion starts already :/ devm_i2c_new_dummy_device()
returns an ERR_PTR.
Bartosz Golaszewski May 20, 2019, 6:14 a.m. UTC | #2 
niedz., 19 maj 2019 o 22:52 Wolfram Sang <wsa@the-dreams.de> napisał(a):
>
>
> > Now that it's upstream, use the resource managed version
> > of i2c_new_dummy().
>
> That was fast :)
>
> > -     dummy_client = i2c_new_dummy(base_client->adapter,
> > -                                  base_client->addr + index);
> > +     dummy_client = devm_i2c_new_dummy_device(dev, base_client->adapter,
> > +                                              base_client->addr + index);
> >       if (!dummy_client) {
>
> Oh well, the confusion starts already :/ devm_i2c_new_dummy_device()
> returns an ERR_PTR.
>

Ugh, sorry for that, especially since I followed the discussion on
that series. :(

I should not be sending out patches late on Sundays I guess.

Bart
diff mbox series

Patch

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 63aa541c9608..9ea196f0749f 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -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)
 {
@@ -527,8 +519,8 @@  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);
+	dummy_client = devm_i2c_new_dummy_device(dev, base_client->adapter,
+						 base_client->addr + index);
 	if (!dummy_client) {
 		dev_err(dev, "address 0x%02x unavailable\n", addr);
 		return -EADDRINUSE;
@@ -693,10 +685,8 @@  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 +703,7 @@  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 +723,7 @@  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 +732,7 @@  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 +740,6 @@  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);