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i2c: mux: pca954x: use helper variable in probe

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This creates a struct device *dev helper variable in probe()
which IMO makes the code less cluttered and easier to read.
Also rename the of_node veriable to the common shortform "np"
(node pointer).

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[peda: slightly edited commit message and removed some surplus newlines]
Signed-off-by: Peter Rosin <peda@axentia.se>
This commit is contained in:
Linus Walleij 2018-06-05 15:42:36 +02:00 committed by Peter Rosin
parent d72e90f33a
commit 6856909ce5
1 changed files with 11 additions and 13 deletions
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24
drivers/i2c/muxes/i2c-mux-pca954x.c
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@ -368,7 +368,8 @@ static int pca954x_probe(struct i2c_client *client,
{
struct i2c_adapter *adap = to_i2c_adapter(client->dev.parent);
struct pca954x_platform_data *pdata = dev_get_platdata(&client->dev);
struct device_node *of_node = client->dev.of_node;
struct device *dev = &client->dev;
struct device_node *np = dev->of_node;
bool idle_disconnect_dt;
struct gpio_desc *gpio;
int num, force, class;
@ -379,8 +380,7 @@ static int pca954x_probe(struct i2c_client *client,
if (!i2c_check_functionality(adap, I2C_FUNC_SMBUS_BYTE))
return -ENODEV;
muxc = i2c_mux_alloc(adap, &client->dev,
PCA954X_MAX_NCHANS, sizeof(*data), 0,
muxc = i2c_mux_alloc(adap, dev, PCA954X_MAX_NCHANS, sizeof(*data), 0,
pca954x_select_chan, pca954x_deselect_mux);
if (!muxc)
return -ENOMEM;
@ -390,7 +390,7 @@ static int pca954x_probe(struct i2c_client *client,
data->client = client;
/* Reset the mux if a reset GPIO is specified. */
gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH);
gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
if (gpio) {
@ -400,7 +400,7 @@ static int pca954x_probe(struct i2c_client *client,
udelay(1);
}
data->chip = of_device_get_match_data(&client->dev);
data->chip = of_device_get_match_data(dev);
if (!data->chip)
data->chip = &chips[id->driver_data];
@ -414,8 +414,7 @@ static int pca954x_probe(struct i2c_client *client,
if (!ret &&
(id.manufacturer_id != data->chip->id.manufacturer_id ||
id.part_id != data->chip->id.part_id)) {
dev_warn(&client->dev,
"unexpected device id %03x-%03x-%x\n",
dev_warn(dev, "unexpected device id %03x-%03x-%x\n",
id.manufacturer_id, id.part_id,
id.die_revision);
return -ENODEV;
@ -427,14 +426,14 @@ static int pca954x_probe(struct i2c_client *client,
* initializes the mux to disconnected state.
*/
if (i2c_smbus_write_byte(client, 0) < 0) {
dev_warn(&client->dev, "probe failed\n");
dev_warn(dev, "probe failed\n");
return -ENODEV;
}
data->last_chan = 0; /* force the first selection */
idle_disconnect_dt = of_node &&
of_property_read_bool(of_node, "i2c-mux-idle-disconnect");
idle_disconnect_dt = np &&
of_property_read_bool(np, "i2c-mux-idle-disconnect");
ret = pca954x_irq_setup(muxc);
if (ret)
@ -465,7 +464,7 @@ static int pca954x_probe(struct i2c_client *client,
}
if (data->irq) {
ret = devm_request_threaded_irq(&client->dev, data->client->irq,
ret = devm_request_threaded_irq(dev, data->client->irq,
NULL, pca954x_irq_handler,
IRQF_ONESHOT | IRQF_SHARED,
"pca954x", data);
@ -473,8 +472,7 @@ static int pca954x_probe(struct i2c_client *client,
goto fail_cleanup;
}
dev_info(&client->dev,
"registered %d multiplexed busses for I2C %s %s\n",
dev_info(dev, "registered %d multiplexed busses for I2C %s %s\n",
num, data->chip->muxtype == pca954x_ismux
? "mux" : "switch", client->name);