From nobody Sat Oct 4 06:34:44 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8860E27876E; Tue, 19 Aug 2025 11:21:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755602468; cv=none; b=OUQhNLIJ7QaZDkUPPtQweCO92dbZxdsqkM7pYQpvZzLKHgcfRjcYxmVBHsWOSI83ZJXmyZretA10JIo7WK1wflh5XHSSZGH6LgIA06CdJcUuzyK95u6Z139LyuejLjbsSAgHQH5sXi1mKSQlnGPo5xSi1vTZW9PSpWlPVcHaxFE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755602468; c=relaxed/simple; bh=zg3sIRBucPRKdjvD/EFZO1qKU1bTJV+UdCfQrDwIHNg=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=bdIAoj6gFWKc9mYAqPhzI68g4ba0EYDNBRKI7t+lNMr3rjtOGWB88ucioqeKmOrPufeMp72QH78FNUDcYZX7CAKPYgIPHYBn/cVMz9nXRBlQR+R5yu8sA8oe6NY7hOPOSxWEOUeNkFDkDuikBiMMNSHraCmqgxiAyVW3I+qSG2A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G0uurZQx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="G0uurZQx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C31AEC4CEF1; Tue, 19 Aug 2025 11:21:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755602468; bh=zg3sIRBucPRKdjvD/EFZO1qKU1bTJV+UdCfQrDwIHNg=; h=From:To:Cc:Subject:Date:From; b=G0uurZQxc66TBpAYTCqLjxnDYExA+Lpv2EWDN3P01TSqUx2MA14Xk4u1G5mNf0g9z K/41329Ux6Z9dnNTXrl0iidugros1p32PFOGNTKISqHLaR64+7i4O0rdARTqZCvdMz P3YUONUZJGJlLmriXFXp2/580Ilkh7gZAqm+/4reFOCGmo4LwaM03wVyQAog2yheg3 5A4tEBuZMTjgkMOXJev/7/QKn/xPUhBa6yAdpqU6e9Iw2a3nRwhFZjxyM7PWyc04+D nr4LKRCQ/HiD4u+MmiU4iv3ubUzazn/Me4GzXRwiUaQcCAwRnebNbTIuC517rIR5Yg 5NBkw8fhah49Q== From: Michael Walle To: Srinivas Kandagatla , Miquel Raynal , Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, Michael Walle , stable@vger.kernel.org Subject: [PATCH v2] nvmem: layouts: fix automatic module loading Date: Tue, 19 Aug 2025 13:21:03 +0200 Message-Id: <20250819112103.1084387-1-mwalle@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" To support loading of a layout module automatically the MODALIAS variable in the uevent is needed. Add it. Fixes: fc29fd821d9a ("nvmem: core: Rework layouts to become regular devices= ") Cc: stable@vger.kernel.org Signed-off-by: Michael Walle Reviewed-by: Miquel Raynal --- I'm still not sure if the sysfs modalias file is required or not. It seems to work without it. I could't find any documentation about it. v2: - add Cc: stable --- drivers/nvmem/layouts.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/nvmem/layouts.c b/drivers/nvmem/layouts.c index 65d39e19f6ec..f381ce1e84bd 100644 --- a/drivers/nvmem/layouts.c +++ b/drivers/nvmem/layouts.c @@ -45,11 +45,24 @@ static void nvmem_layout_bus_remove(struct device *dev) return drv->remove(layout); } =20 +static int nvmem_layout_bus_uevent(const struct device *dev, + struct kobj_uevent_env *env) +{ + int ret; + + ret =3D of_device_uevent_modalias(dev, env); + if (ret !=3D ENODEV) + return ret; + + return 0; +} + static const struct bus_type nvmem_layout_bus_type =3D { .name =3D "nvmem-layout", .match =3D nvmem_layout_bus_match, .probe =3D nvmem_layout_bus_probe, .remove =3D nvmem_layout_bus_remove, + .uevent =3D nvmem_layout_bus_uevent, }; =20 int __nvmem_layout_driver_register(struct nvmem_layout_driver *drv, --=20 2.39.5