linux-kernel - Re: [PATCH v3 2/2] pinctrl: stm32: Add level interrupt support to gpio irq chip

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Date:   Thu, 20 Feb 2020 10:04:11 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Alexandre Torgue <alexandre.torgue@...com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Marek Vasut <marex@...x.de>
Subject: Re: [PATCH v3 2/2] pinctrl: stm32: Add level interrupt support to
 gpio irq chip

On Wed, Feb 19, 2020 at 3:32 PM Alexandre Torgue
<alexandre.torgue@...com> wrote:

> GPIO hardware block is directly linked to EXTI block but EXTI handles
> external interrupts only on edge. To be able to handle GPIO interrupt on
> level a "hack" is done in gpio irq chip: parent interrupt (exti irq chip)
> is retriggered following interrupt type and gpio line value.
>
> Signed-off-by: Alexandre Torgue <alexandre.torgue@...com>
> Tested-by: Marek Vasut <marex@...x.de>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

If Marc want to merge it with patch 1/2 go ahead!

Alternatively I can merge both patches.

Thanks to you & Marek for hashing this out, excellent work!

Yours,
Linus Walleij