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

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Message-ID: <CAOMZO5DNGKjRLUVKgyziG9nEzPtyRVcPWc21x0wc20ZjuS6E-A@mail.gmail.com>
Date: Fri, 14 Nov 2025 08:54:03 -0300
From: Fabio Estevam <festevam@...il.com>
To: Xu Yang <xu.yang_2@....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 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?