linux-kernel - Re: [PATCH] extcon: ptn5150: handle pending IRQ events during system resume

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Message-ID: <uodhj25r4z4icqc4htdemvhvwwe6ntqd4nlimcrquilaj7o4dy@47h3wgr3qvek>
Date: Sat, 15 Nov 2025 10:31:18 +0800
From: Xu Yang <xu.yang_2@....com>
To: Fabio Estevam <festevam@...il.com>
Cc: krzk@...nel.org, myungjoo.ham@...sung.com, cw00.choi@...sung.com, 
	linux-kernel@...r.kernel.org, imx@...ts.linux.dev
Subject: Re: [PATCH] extcon: ptn5150: handle pending IRQ events during system
 resume

On Fri, Nov 14, 2025 at 08:54:03AM -0300, Fabio Estevam wrote:
> On Fri, Nov 14, 2025 at 4:42 AM Xu Yang <xu.yang_2@....com> wrote:
> >
> > When the system is suspended and ptn5150 wakeup interrupt is disabled,
> > any changes on ptn5150 will only be record in interrupt status
> > registers and won't fire an IRQ since its trigger type is falling
> > edge. So the HW interrupt line will keep at low state and any further
> > changes won't trigger IRQ anymore. To fix it, this will schedule a
> > work to check whether any IRQ are pending and handle it accordingly.
> >
> > Signed-off-by: Xu Yang <xu.yang_2@....com>
> 
> Fixes tag?

Will add it in v2.

Thanks,
Xu Yang