linux-kernel - Re: [PATCH 6/6] pinctrl: mt8173: set GPIO16 to usb iddig mode

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Date:	Wed, 11 May 2016 11:32:26 -0700
From:	Hongzhou Yang <hongzhou.yang@...iatek.com>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	Chunfeng Yun <chunfeng.yun@...iatek.com>,
	Maoguang Meng <maoguang.meng@...iatek.com>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	Felipe Balbi <felipe.balbi@...ux.intel.com>,
	Mathias Nyman <mathias.nyman@...el.com>,
	"Alan Stern" <stern@...land.harvard.edu>,
	Rob Herring <robh+dt@...nel.org>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Pawel Moll <pawel.moll@....com>,
	"Kumar Gala" <galak@...eaurora.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	"Biao Huang" <biao.huang@...iatek.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"moderated list:ARM/Mediatek SoC support" 
	<linux-mediatek@...ts.infradead.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH 6/6] pinctrl: mt8173: set GPIO16 to usb iddig mode

On Wed, 2016-05-11 at 13:56 +0200, Linus Walleij wrote:
> On Tue, May 10, 2016 at 10:23 AM, Chunfeng Yun
> <chunfeng.yun@...iatek.com> wrote:
> 
> > the default mode of GPIO16 pin is gpio, when set EINT16 to
> > IRQ_TYPE_LEVEL_HIGH, no interrupt is triggered, it can be
> > fixed when set its default mode as usb iddig.
> >
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> 

Chunfeng, GPIO16 can be used as EINT16 mode, but the pinmux should be 0.
If you want to set its default mode to iddig, you should set it in dts.

Yours,
Hongzhou