diff mbox series

[v1,2/2] backlight: mp3309c: Utilise temporary variable for struct device

Message ID 20231214195158.1335727-3-andriy.shevchenko@linux.intel.com
State New
Headers show
Series backlight: mp3309c: Allow to use on non-OF platforms | expand

Commit Message

Andy Shevchenko Dec. 14, 2023, 7:51 p.m. UTC 
We have a temporary variable to keep pointer to struct device.
Utilise it where it makes sense.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/video/backlight/mp3309c.c | 38 +++++++++++++------------------
 1 file changed, 16 insertions(+), 22 deletions(-)

Comments

Flavio Suligoi Dec. 15, 2023, 2:13 p.m. UTC | #1 
> Subject: [PATCH v1 2/2] backlight: mp3309c: Utilise temporary variable
> for struct device
> 
> We have a temporary variable to keep pointer to struct device.
> Utilise it where it makes sense.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/video/backlight/mp3309c.c | 38 +++++++++++++------------------
>  1 file changed, 16 insertions(+), 22 deletions(-)
> 

Hi Andy,

I tested the patch in both pwm and analog-ic dimming-mode and everything is ok.
Thanks for the optimizations!

Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Daniel Thompson Dec. 15, 2023, 4:11 p.m. UTC | #2 
On Thu, Dec 14, 2023 at 09:51:14PM +0200, Andy Shevchenko wrote:
> We have a temporary variable to keep pointer to struct device.
> Utilise it where it makes sense.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>


Daniel.
diff mbox series

Patch

diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c
index d9b08f191999..57eb1bcc054d 100644
--- a/drivers/video/backlight/mp3309c.c
+++ b/drivers/video/backlight/mp3309c.c
@@ -224,10 +224,9 @@  static int pm3309c_parse_dt_node(struct mp3309c_chip *chip,
 	 */
 	pdata->dimming_mode = DIMMING_ANALOG_I2C;
 	if (device_property_present(dev, "pwms")) {
-		chip->pwmd = devm_pwm_get(chip->dev, NULL);
+		chip->pwmd = devm_pwm_get(dev, NULL);
 		if (IS_ERR(chip->pwmd))
-			return dev_err_probe(chip->dev, PTR_ERR(chip->pwmd),
-					     "error getting pwm data\n");
+			return dev_err_probe(dev, PTR_ERR(chip->pwmd), "error getting pwm data\n");
 		pdata->dimming_mode = DIMMING_PWM;
 		pwm_apply_args(chip->pwmd);
 	}
@@ -245,11 +244,9 @@  static int pm3309c_parse_dt_node(struct mp3309c_chip *chip,
 		num_levels = ANALOG_I2C_NUM_LEVELS;
 
 		/* Enable GPIO used in I2C dimming mode only */
-		chip->enable_gpio = devm_gpiod_get(chip->dev, "enable",
-						   GPIOD_OUT_HIGH);
+		chip->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
 		if (IS_ERR(chip->enable_gpio))
-			return dev_err_probe(chip->dev,
-					     PTR_ERR(chip->enable_gpio),
+			return dev_err_probe(dev, PTR_ERR(chip->enable_gpio),
 					     "error getting enable gpio\n");
 	} else {
 		/*
@@ -267,8 +264,7 @@  static int pm3309c_parse_dt_node(struct mp3309c_chip *chip,
 	}
 
 	/* Fill brightness levels array */
-	pdata->levels = devm_kcalloc(chip->dev, num_levels,
-				     sizeof(*pdata->levels), GFP_KERNEL);
+	pdata->levels = devm_kcalloc(dev, num_levels, sizeof(*pdata->levels), GFP_KERNEL);
 	if (!pdata->levels)
 		return -ENOMEM;
 	if (device_property_present(dev, "brightness-levels")) {
@@ -287,8 +283,7 @@  static int pm3309c_parse_dt_node(struct mp3309c_chip *chip,
 	if (ret)
 		pdata->default_brightness = pdata->max_brightness;
 	if (pdata->default_brightness > pdata->max_brightness) {
-		dev_err(chip->dev,
-			"default brightness exceeds max brightness\n");
+		dev_err(dev, "default brightness exceeds max brightness\n");
 		pdata->default_brightness = pdata->max_brightness;
 	}
 
@@ -329,32 +324,33 @@  static int pm3309c_parse_dt_node(struct mp3309c_chip *chip,
 
 static int mp3309c_probe(struct i2c_client *client)
 {
-	struct mp3309c_platform_data *pdata = dev_get_platdata(&client->dev);
+	struct device *dev = &client->dev;
+	struct mp3309c_platform_data *pdata = dev_get_platdata(dev);
 	struct mp3309c_chip *chip;
 	struct backlight_properties props;
 	struct pwm_state pwmstate;
 	int ret;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "failed to check i2c functionality\n");
+		dev_err(dev, "failed to check i2c functionality\n");
 		return -EOPNOTSUPP;
 	}
 
-	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
+	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
 
-	chip->dev = &client->dev;
+	chip->dev = dev;
 
 	chip->regmap = devm_regmap_init_i2c(client, &mp3309c_regmap);
 	if (IS_ERR(chip->regmap))
-		return dev_err_probe(&client->dev, PTR_ERR(chip->regmap),
+		return dev_err_probe(dev, PTR_ERR(chip->regmap),
 				     "failed to allocate register map\n");
 
 	i2c_set_clientdata(client, chip);
 
 	if (!pdata) {
-		pdata = devm_kzalloc(chip->dev, sizeof(*pdata), GFP_KERNEL);
+		pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 		if (!pdata)
 			return -ENOMEM;
 
@@ -371,11 +367,10 @@  static int mp3309c_probe(struct i2c_client *client)
 	props.type = BACKLIGHT_RAW;
 	props.power = FB_BLANK_UNBLANK;
 	props.fb_blank = FB_BLANK_UNBLANK;
-	chip->bl = devm_backlight_device_register(chip->dev, "mp3309c",
-						  chip->dev, chip,
+	chip->bl = devm_backlight_device_register(dev, "mp3309c", dev, chip,
 						  &mp3309c_bl_ops, &props);
 	if (IS_ERR(chip->bl))
-		return dev_err_probe(chip->dev, PTR_ERR(chip->bl),
+		return dev_err_probe(dev, PTR_ERR(chip->bl),
 				     "error registering backlight device\n");
 
 	/* In PWM dimming mode, enable pwm device */
@@ -387,8 +382,7 @@  static int mp3309c_probe(struct i2c_client *client)
 		pwmstate.enabled = true;
 		ret = pwm_apply_state(chip->pwmd, &pwmstate);
 		if (ret)
-			return dev_err_probe(chip->dev, ret,
-					     "error setting pwm device\n");
+			return dev_err_probe(dev, ret, "error setting pwm device\n");
 	}
 
 	chip->pdata->status = FIRST_POWER_ON;