Re: [PATCH] gpio: merrifield: Pass irqchip when adding gpiochip

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

On Mon, Aug 12, 2019 at 10:23:31AM +0200, Linus Walleij wrote:
> We need to convert all old gpio irqchips to pass the irqchip
> setup along when adding the gpio_chip. For more info see
> drivers/gpio/TODO.
> 
> For chained irqchips this is a pretty straight-forward
> conversion.

All three Intel GPIO changes with kcalloc() fix I was commenting about
pushed to my review and testing queue. Thanks!

> 
> Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Cc: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
> Cc: David Cohen <david.a.cohen@xxxxxxxxxxxxxxx>
> Cc: Thierry Reding <treding@xxxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> Andy: when you're happy with this you can either supply an
> ACK and I will merge it or you can merge it into your tree
> for a later pull request, just tell me what you prefer.
> ---
>  drivers/gpio/gpio-merrifield.c | 28 ++++++++++++++++------------
>  1 file changed, 16 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-merrifield.c b/drivers/gpio/gpio-merrifield.c
> index 3302125e5265..299277951791 100644
> --- a/drivers/gpio/gpio-merrifield.c
> +++ b/drivers/gpio/gpio-merrifield.c
> @@ -397,6 +397,7 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id
>  {
>  	const struct mrfld_gpio_pinrange *range;
>  	const char *pinctrl_dev_name;
> +	struct gpio_irq_chip *girq;
>  	struct mrfld_gpio *priv;
>  	u32 gpio_base, irq_base;
>  	void __iomem *base;
> @@ -444,6 +445,21 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id
>  
>  	raw_spin_lock_init(&priv->lock);
>  
> +	girq = &priv->chip.irq;
> +	girq->chip = &mrfld_irqchip;
> +	girq->parent_handler = mrfld_irq_handler;
> +	girq->num_parents = 1;
> +	girq->parents = devm_kcalloc(&pdev->dev, 1,
> +				     sizeof(*girq->parents),
> +				     GFP_KERNEL);
> +	if (!girq->parents)
> +		return -ENOMEM;
> +	girq->parents[0] = pdev->irq;
> +	girq->default_type = IRQ_TYPE_NONE;
> +	girq->handler = handle_bad_irq;
> +
> +	mrfld_irq_init_hw(priv);
> +
>  	pci_set_drvdata(pdev, priv);
>  	retval = devm_gpiochip_add_data(&pdev->dev, &priv->chip, priv);
>  	if (retval) {
> @@ -465,18 +481,6 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id
>  		}
>  	}
>  
> -	retval = gpiochip_irqchip_add(&priv->chip, &mrfld_irqchip, irq_base,
> -				      handle_bad_irq, IRQ_TYPE_NONE);
> -	if (retval) {
> -		dev_err(&pdev->dev, "could not connect irqchip to gpiochip\n");
> -		return retval;
> -	}
> -
> -	mrfld_irq_init_hw(priv);
> -
> -	gpiochip_set_chained_irqchip(&priv->chip, &mrfld_irqchip, pdev->irq,
> -				     mrfld_irq_handler);
> -
>  	return 0;
>  }
>  
> -- 
> 2.21.0
> 

-- 
With Best Regards,
Andy Shevchenko