Re: [PATCH v2 3/7] pwm: max7360: Add MAX7360 PWM support

[Christophe JAILLET]

Le 23/12/2024 à 17:42, mathieu.dubois-briand@xxxxxxxxxxx a écrit :
> From: Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
>
> Add driver for Maxim Integrated MAX7360 PWM controller, supporting up to
> 8 independent PWM outputs.
>
> Signed-off-by: Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@xxxxxxxxxxx>

...

> +static int max7360_pwm_probe(struct platform_device *pdev)
> +{
> +	struct max7360_pwm *max7360_pwm;
> +	struct pwm_chip *chip;
> +	int ret;
> +
> +	if (!pdev->dev.parent)
> +		return dev_err_probe(&pdev->dev, -ENODEV, "no parent device\n");
> +
> +	chip = devm_pwmchip_alloc(pdev->dev.parent, MAX7360_NUM_PWMS,
> +				  sizeof(*max7360_pwm));
> +	if (IS_ERR(chip))
> +		return PTR_ERR(chip);
> +	chip->ops = &max7360_pwm_ops;
> +
> +	max7360_pwm = to_max7360_pwm(chip);
> +	max7360_pwm->parent = pdev->dev.parent;
> +
> +	max7360_pwm->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> +	if (!max7360_pwm->regmap)
> +		return dev_err_probe(&pdev->dev, -ENODEV,
> +				     "could not get parent regmap\n");
> +
> +	ret = devm_pwmchip_add(&pdev->dev, chip);
> +	if (ret != 0)
> +		dev_err_probe(&pdev->dev, ret, "failed to add PWM chip");

Missing return, or done on purpose?

> +
> +	return 0;
> +}