linux-kernel - Re: [PATCH 1/2] [RFC] gpio: pcf857x: Switch to use gpiolib irqchip helpers

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Date:	Wed, 4 Mar 2015 13:49:44 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Geert Uytterhoeven <geert+renesas@...der.be>
Cc:	Alexandre Courbot <gnurou@...il.com>,
	George Cherian <george.cherian@...com>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-sh@...r.kernel.org" <linux-sh@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] [RFC] gpio: pcf857x: Switch to use gpiolib irqchip helpers

On Thu, Feb 5, 2015 at 4:49 PM, Geert Uytterhoeven
<geert+renesas@...der.be> wrote:

> Switch the PCF857x GPIO driver to use the gpiolib irqchip helpers.
> This driver uses a nested threaded interrupt, hence handle_nested_irq()
> and gpiochip_set_chained_irqchip() must be used.
>
> Note that this removes the checks added in commit 21fd3cd1874a2ac8
> ("gpio: pcf857x: call the gpio user handler iff gpio_to_irq is done"),
> as the interrupt mappings are no longer created on-demand by the driver,
> but by gpiochip_irqchip_add() during initialization.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>

Patch applied.

Yours,
Linus Walleij
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