linux-kernel - Re: [Regression] "irqdomain: Don't set type when mapping an IRQ" breaks nexus7 gpio buttons

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Date:	Mon, 8 Aug 2016 23:48:47 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	John Stultz <john.stultz@...aro.org>
Cc:	Jon Hunter <jonathanh@...dia.com>,
	Marc Zyngier <marc.zyngier@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	lkml <linux-kernel@...r.kernel.org>,
	Bjorn Andersson <bjorn.andersson@...aro.org>
Subject: Re: [Regression] "irqdomain: Don't set type when mapping an IRQ"
 breaks nexus7 gpio buttons

On Sat, Aug 6, 2016 at 1:45 AM, John Stultz <john.stultz@...aro.org> wrote:

> @@ -614,7 +615,11 @@ unsigned int irq_create_fwspec_mapping(struct
> irq_fwspec *fwspec)
>                  * it now and return the interrupt number.
>                  */
>                 if (irq_get_trigger_type(virq) == IRQ_TYPE_NONE) {
> -                       irq_set_irq_type(virq, type);
> +                       irq_data = irq_get_irq_data(virq);
> +                       if (!irq_data)
> +                               return 0;
> +
> +                       irqd_set_trigger_type(irq_data, type);
>                         return virq;
>                 }
>
> If I revert just that, it works again.

This makes my platform work too.
Tested-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij