[PATCH 6/6] pinctrl: mt8173: set GPIO16 to usb iddig mode
From: chunfeng.yun@mediatek.com (chunfeng yun)
Date: 2016-05-12 01:41:45
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linux-devicetree, linux-gpio, linux-mediatek, lkml
Hi, On Wed, 2016-05-11 at 11:32 -0700, Hongzhou Yang wrote:
On Wed, 2016-05-11 at 13:56 +0200, Linus Walleij wrote:quoted
On Tue, May 10, 2016 at 10:23 AM, Chunfeng Yun [off-list ref] wrote:quoted
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@mediatek.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.
I set it in DTS, but it didn't work, because when usb driver requested IRQ, pinmux was switched back to default mode set by MTK_EINT_FUNCTION().
Yours, Hongzhou