> Without hooking .irq_request_resources, gpiolib cannot set
> GPIOD_FLAG_USED_AS_IRQ. This breaks pin direction locking and can allow
> userspace or another driver to reconfigure an active IRQ pin as an output
> 
> Fixes: 1c8ace2d0725 ("pinctrl: airoha: Add support for EN7581 SoC")
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>

Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>

> ---
>  drivers/pinctrl/airoha/pinctrl-airoha.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pinctrl/airoha/pinctrl-airoha.c b/drivers/pinctrl/airoha/pinctrl-airoha.c
> index f85941ccea560..d218a1f01648b 100644
> --- a/drivers/pinctrl/airoha/pinctrl-airoha.c
> +++ b/drivers/pinctrl/airoha/pinctrl-airoha.c
> @@ -2676,6 +2676,7 @@ static const struct irq_chip airoha_gpio_irq_chip = {
>  	.irq_mask_ack = airoha_irq_mask,
>  	.irq_set_type = airoha_irq_type,
>  	.flags = IRQCHIP_SET_TYPE_MASKED | IRQCHIP_IMMUTABLE,
> +	GPIOCHIP_IRQ_RESOURCE_HELPERS,
>  };
>  
>  static int airoha_pinctrl_add_gpiochip(struct airoha_pinctrl *pinctrl,
> -- 
> 2.53.0
>