linux-kernel - Re: [PATCH 1/7] pinctrl: mediatek: emulate GPIO interrupt on both-edges

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Message-ID: <CACRpkdbhuouBuXv0X4M5VHikvWV_rLFd+LjU=PndgTVm4+retg@mail.gmail.com>
Date:	Tue, 10 Feb 2015 16:24:56 +0800
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Chaotian Jing <chaotian.jing@...iatek.com>
Cc:	Rob Herring <robh+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	srv_heupstream@...iatek.com, Sascha Hauer <kernel@...gutronix.de>,
	Mark Rutland <mark.rutland@....com>,
	Will Deacon <will.deacon@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Catalin Marinas <catalin.marinas@....com>,
	Eddie Huang <eddie.huang@...iatek.com>,
	Hongzhou Yang <hongzhou.yang@...iatek.com>,
	James Liao <jamesjj.liao@...iatek.com>,
	"Joe.C" <yingjoe.chen@...iatek.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	bin.zhang@...iatek.com
Subject: Re: [PATCH 1/7] pinctrl: mediatek: emulate GPIO interrupt on both-edges

On Tue, Jan 27, 2015 at 2:15 PM, Chaotian Jing
<chaotian.jing@...iatek.com> wrote:

> From: Yingjoe Chen <yingjoe.chen@...iatek.com>
>
> MTK EINT does not support generating interrupt on both edges.
> Emulate this by changing edge polarity while enable irq,
> set types and interrupt handling. This follows an example of
> drivers/gpio/gpio-mxc.c.
>
> Signed-off-by: Yingjoe Chen <yingjoe.chen@...iatek.com>
> Signed-off-by: Chaotian Jing <chaotian.jing@...iatek.com>

Patch applied on top of the rest of the mtk pinctrl support.
Adding Hongzhou's ACK on top.

Yours,
Linus Walleij
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