Re: [PATCH] gpio: pcie-idio-24: Use irqchip template

[William Breathitt Gray <vilhelm.gray@gmail.com>]

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On Wed, Jul 22, 2020 at 01:00:27PM +0200, Linus Walleij wrote:
> This makes the driver use the irqchip template to assign
> properties to the gpio_irq_chip instead of using the
> explicit call to gpiochip_irqchip_add().
> 
> The irqchip is instead added while adding the gpiochip.
> 
> Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>

> ---
>  drivers/gpio/gpio-pcie-idio-24.c | 17 ++++++++++-------
>  1 file changed, 10 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-pcie-idio-24.c b/drivers/gpio/gpio-pcie-idio-24.c
> index 1d475794a50f..a68941d19ac6 100644
> --- a/drivers/gpio/gpio-pcie-idio-24.c
> +++ b/drivers/gpio/gpio-pcie-idio-24.c
> @@ -457,6 +457,7 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  	int err;
>  	const size_t pci_bar_index = 2;
>  	const char *const name = pci_name(pdev);
> +	struct gpio_irq_chip *girq;
>  
>  	idio24gpio = devm_kzalloc(dev, sizeof(*idio24gpio), GFP_KERNEL);
>  	if (!idio24gpio)
> @@ -490,6 +491,15 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  	idio24gpio->chip.set = idio_24_gpio_set;
>  	idio24gpio->chip.set_multiple = idio_24_gpio_set_multiple;
>  
> +	girq = &idio24gpio->chip.irq;
> +	girq->chip = &idio_24_irqchip;
> +	/* This will let us handle the parent IRQ in the driver */
> +	girq->parent_handler = NULL;
> +	girq->num_parents = 0;
> +	girq->parents = NULL;
> +	girq->default_type = IRQ_TYPE_NONE;
> +	girq->handler = handle_edge_irq;
> +
>  	raw_spin_lock_init(&idio24gpio->lock);
>  
>  	/* Software board reset */
> @@ -501,13 +511,6 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  		return err;
>  	}
>  
> -	err = gpiochip_irqchip_add(&idio24gpio->chip, &idio_24_irqchip, 0,
> -		handle_edge_irq, IRQ_TYPE_NONE);
> -	if (err) {
> -		dev_err(dev, "Could not add irqchip (%d)\n", err);
> -		return err;
> -	}
> -
>  	err = devm_request_irq(dev, pdev->irq, idio_24_irq_handler, IRQF_SHARED,
>  		name, idio24gpio);
>  	if (err) {
> -- 
> 2.26.2
> 

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