linux-kernel - Re: [PATCH v4] usb: core: adds support for PM control of specific USB dev skip suspend.

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Message-ID: <0e9d0183-e262-4184-a7b0-9ab16e736b91@kernel.org>
Date: Wed, 23 Oct 2024 08:26:40 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: huanglei814 <huanglei814@....com>, gregkh@...uxfoundation.org,
 mathias.nyman@...el.com
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
 huanglei <huanglei@...inos.cn>
Subject: Re: [PATCH v4] usb: core: adds support for PM control of specific USB
 dev skip suspend.

On 23/10/2024 05:44, huanglei814 wrote:
> From: huanglei <huanglei@...inos.cn>
> 
> All USB devices are brought into suspend power state after system suspend.
> It is desirable for some specific manufacturers buses to keep their devices
> in normal state even after system suspend.
> 
> Signed-off-by: huanglei <huanglei@...inos.cn>
> ---
> v3->v4:
> - Cancel SUSPENDED state judgment when enter suspend，because udev will not enter.
> - Change "usb-skip-suspend" to "usb-never-suspend"

Nothing improved in respect of bindings.

Still NAK.

Best regards,
Krzysztof