[PATCH 6/6] pinctrl: mt8173: set GPIO16 to usb iddig mode

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