[PATCH 6/6] pinctrl: mt8173: set GPIO16 to usb iddig mode
From: Hongzhou Yang <hidden>
Date: 2016-05-12 02:09:15
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linux-devicetree, linux-gpio, linux-mediatek, lkml
On Thu, 2016-05-12 at 09:41 +0800, chunfeng yun wrote:
Hi, On Wed, 2016-05-11 at 11:32 -0700, Hongzhou Yang wrote:quoted
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().
After confirmed, there are something wrong with data sheet and pinmux table, and GPIO16 can only receive interrupt by mode 1. So Acked-by: Hongzhou Yang <redacted> Yours, Hongzhou