linux-kernel - Re: [PATCH 1/1] gpio: altera: Use handle_level_irq when configured as a level

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Date:   Thu, 23 Feb 2017 15:52:37 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Phil Reid <preid@...ctromag.com.au>
Cc:     Tien Hock Loh <thloh@...era.com>,
        Alexandre Courbot <gnurou@...il.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] gpio: altera: Use handle_level_irq when configured as
 a level_high

On Fri, Feb 17, 2017 at 10:12 AM, Phil Reid <preid@...ctromag.com.au> wrote:

>         ret = gpiochip_irqchip_add(&altera_gc->mmchip.gc, &altera_irq_chip, 0,
> -               handle_simple_irq, IRQ_TYPE_NONE);
> +               altera_gc->interrupt_trigger == IRQ_TYPE_LEVEL_HIGH ?
> +               handle_level_irq : handle_simple_irq, IRQ_TYPE_NONE);

I would say: set it to handle_bad_irq() for everything and then set it
to handle_level_irq() or handle_simple_irq() in the .set_type() function
using the rq_set_handler_locked() callback like everyone else,
nicely reflecting the synthesized trigger type.

I think that would work?

Yours,
Linus Walleij