From: Ridham Khurana <khurana.ridham222@gmail.com>
To: "Marek Behún" <kabel@kernel.org>
Cc: soc@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org, Shuah Khan <shuah@kernel.org>,
Jori Koolstra <jkoolstra@xs4all.nl>,
Brigham Campbell <me@brighamcampbell.com>,
linux-kernel-mentees@lists.linux.dev,
Ridham Khurana <khurana.ridham222@gmail.com>
Subject: [PATCH RESEND] platform: cznic: turris-omnia-mcu: Add missing MODULE_DEVICE_TABLE()
Date: Mon, 21 Sep 2026 20:41:47 +0000 [thread overview]
Message-ID: <20260921204204.797294-1-khurana.ridham222@gmail.com> (raw)
The driver wires of_omnia_mcu_match into the i2c_driver's
.of_match_table but never exports it with MODULE_DEVICE_TABLE(), so no
module alias is generated and the module is not autoloaded when the MCU
is probed from the device tree.
Found by code inspection. Not tested on the hardware itself; with the
module built, the alias lookup
$ modprobe -R 'of:Nsystem-controllerT(null)Ccznic,turris-omnia-mcu'
reports no match before this change and resolves to turris_omnia_mcu
after it.
Fixes: 992f1a3d4e88 ("platform: cznic: Add preliminary support for Turris Omnia MCU")
Signed-off-by: Ridham Khurana <khurana.ridham222@gmail.com>
---
Resend of the original posting, unchanged, widening Cc to the SoC tree
(drivers/platform/cznic goes upstream through it). No response to the
original posting or to the ping on Sep 9.
Build-tested on linux-next (next-20260921).
Link: https://lore.kernel.org/all/20260827113241.993923-1-khurana.ridham222@gmail.com/
drivers/platform/cznic/turris-omnia-mcu-base.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/cznic/turris-omnia-mcu-base.c b/drivers/platform/cznic/turris-omnia-mcu-base.c
index e8fc0d7b3343..f0416302a1f3 100644
--- a/drivers/platform/cznic/turris-omnia-mcu-base.c
+++ b/drivers/platform/cznic/turris-omnia-mcu-base.c
@@ -403,6 +403,7 @@ static const struct of_device_id of_omnia_mcu_match[] = {
{ .compatible = "cznic,turris-omnia-mcu" },
{}
};
+MODULE_DEVICE_TABLE(of, of_omnia_mcu_match);
static struct i2c_driver omnia_mcu_driver = {
.probe = omnia_mcu_probe,
--
2.47.3
next reply other threads:[~2026-09-21 20:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 20:41 Ridham Khurana [this message]
2026-10-01 11:42 ` [PATCH RESEND] platform: cznic: turris-omnia-mcu: Add missing MODULE_DEVICE_TABLE() Krzysztof Kozlowski
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