Re: [PATCH 3/3] regulator: add regulator driver for the Nexperia NEX10000UB

[Mark Brown]

On Fri, Sep 18, 2026 at 09:25:39AM +0200, Neil Armstrong wrote:
> Add regulator support for the Nexperia NEX10000UB dual output LCD
> bias power supply which provides programmable positive and negative
> output voltages mainly for display panels applications.

> +static int nex10000ub_of_parse_cb(struct device_node *np,
> +				  const struct regulator_desc *desc,
> +				  struct regulator_config *config)
> +{
> +	struct gpio_desc *ena_gpiod;
> +
> +	ena_gpiod = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0,
> +					   GPIOD_ASIS, desc->name);

This is GPIOD_ASIS so the direction might not have been configured.

> +	if (IS_ERR(ena_gpiod))
> +		return PTR_ERR(ena_gpiod);

The binding says the property is optional.

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