Re: [PATCH v3 2/2] iio: light: bh1750: Add hardware reset support via GPIO

[Krzysztof Kozlowski <krzk@kernel.org>]

On 19/03/2025 17:11, Sergio Perez wrote:
>  struct bh1750_chip_info {
> @@ -248,6 +253,24 @@ static int bh1750_probe(struct i2c_client *client)
>  	data->client = client;
>  	data->chip_info = &bh1750_chip_info_tbl[id->driver_data];
>  
> +	/* Get reset GPIO from device tree */
> +	data->reset_gpio = devm_gpiod_get_optional(&client->dev,
> +									"reset", GPIOD_OUT_HIGH);


Mess indentation.

> +	if (IS_ERR(data->reset_gpio))
> +		return dev_err_probe(&client->dev, PTR_ERR(data->reset_gpio),
> +							"Failed to get reset GPIO\n");
> +
> +	/* Perform hardware reset if GPIO is provided */
> +	if (data->reset_gpio) {
> +		/* Perform reset sequence: low-high */
> +		gpiod_set_value_cansleep(data->reset_gpio, 0);
> +		fsleep(BH1750_RESET_DELAY_US);
> +		gpiod_set_value_cansleep(data->reset_gpio, 1);


So you keep device at reset state. This wasn't tested or your DTS is wrong.

I expect to acknowledge/respond to each of this comments above. Next
version, which is supposed to be v5, should fix them.

Best regards,
Krzysztof