From: sashiko-bot@kernel.org
To: "ChunAn Wu" <an.wu@canonical.com>, linux-serial@vger.kernel.org
Subject: Re: [PATCH] serdev: handle devices without an ACPI or device tree node
Date: Mon, 19 Oct 2026 06:03:40 +0000 [thread overview]
Message-ID: <sashiko-outbox-176681@kernel.org> (raw)
In-Reply-To: <20261019054513.1966382-1-an.wu@canonical.com>
> Some drivers, such as dell-uart-backlight, manually instantiate serdev
> clients without an ACPI companion or device tree node.
>
> For these devices, both modalias helpers return -ENODEV. This makes the
> modalias sysfs read fail and suppresses the device add uevent, even
> though the device is registered and bound to its driver.
>
> Return success with no modalias when neither metadata source exists.
> Devices with ACPI or device tree metadata keep their existing alias
> generation and error handling.
>
> Signed-off-by: ChunAn Wu <an.wu@canonical.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261019054513.1966382-1-an.wu@canonical.com?part=1
next prev parent reply other threads:[~2026-10-19 6:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 5:45 [PATCH] serdev: handle devices without an ACPI or device tree node ChunAn Wu
2026-10-19 6:03 ` sashiko-bot [this message]
2026-10-19 6:43 ` An Wu
2026-10-20 16:42 ` Markus Probst
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