From nobody Sat Feb 7 15:11:06 2026 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 B8ED8318ECD; Wed, 4 Feb 2026 16:42:22 +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=1770223342; cv=none; b=UbhTKt7T7jY55wV/5YEf1lPz5lVaJoJLL63l0SbNn2jxeIf4obTPPWbqxHzIBF6wh5j51PRbkr8LP6Oxz4m3ml/82F/sOYMi3yd9bHL6VKBfHf6mKx8MfH/vD98anvSh1qMdrhz0GrARX8rTqGQ1ytPauANX6g3XmskD/7gVnDM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770223342; c=relaxed/simple; bh=8vlCqZN8hg/vKDcQStitR8SkolD3k0bhlYMeJ63mYRA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=bgkdyKAgF6SeNQKqgOq6gEwYLuC0i5P9i0Mv7VPg3LylB32vIdydUnpJHbuMVqnpn7A1VRExGCFjLBrUHkeY7SgtOCNWISDVCpKvn6gCKFVGqRzrOtamilo/1hyjUz0+lNgiy0C2kTIK2GM2po70gZ6oCVlaIvJA9uu9BfwtnHk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Gm/kNNoV; 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="Gm/kNNoV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDA6EC4CEF7; Wed, 4 Feb 2026 16:42:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770223342; bh=8vlCqZN8hg/vKDcQStitR8SkolD3k0bhlYMeJ63mYRA=; h=From:To:Cc:Subject:Date:From; b=Gm/kNNoVNwrjDDx2urSYktUZmEnqy0m934PRoaxD4nU8LRVk7/+a79twhIcIbWa4f KNpKjCkzhKmLeP00WYgh6VreESUFatjOJwumsLg9tCR/aqRohAPG2/4MZr16aPBeFn FQqLi8Z/fkY0iVbpoGpF/Fixy6qC4sX+0bTCZ4579EvyOu66fTpvbK2dzx8cPPOQNt FJNtOaq4kxhB/pxDm0600TXTE2cVexQ8juM0yA14l2bzajYVjd9LEUk/ytj761sc6O vtimFY8NVi3paqPz50vnJA4LiN4gMhOFVzniyxmU/uqgfs15dHTQc7mPU1oieRZOIE IqhFgV9pphlMw== From: Arnd Bergmann To: Alexandre Belloni Cc: Arnd Bergmann , Jonathan Cameron , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i3c@lists.infradead.org, linux-iio@vger.kernel.org Subject: [PATCH] [v3, apply after -rc1] i3c: simplify combined i3c/i2c dependencies Date: Wed, 4 Feb 2026 17:41:58 +0100 Message-Id: <20260204164216.544409-1-arnd@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" From: Arnd Bergmann All combined i2c/i3c drivers appear to suffer from the same link time problem when CONFIG_I3C is set to 'm': arm-linux-gnueabi-ld: drivers/iio/magnetometer/mmc5633.o: in function `mmc5= 633_i3c_driver_init': mmc5633.c:(.init.text+0x30): undefined reference to `i3c_driver_register_wi= th_owner' This was previously fixed every time by marking individual drivers as 'depends on I2C; depends on I3C || !I3C', but this gets tedious and is somewhat confusing. Add a Kconfig symbol 'I3C_OR_I2C' to help replace those dependencies, and use this in all the existing drivers that had already fixed it as well as the new mmc5633 driver. Fixes: 6e5f6bf2e3f0 ("iio: magnetometer: Add mmc5633 sensor") Reviewed-by: Jonathan Cameron Signed-off-by: Arnd Bergmann Acked-by: Guenter Roeck Acked-by: Jonathan Cameron --- v2: restore accidentally deleted lines v3: rebase on top of Jonathan's IIO patch in linux-next --- drivers/hwmon/Kconfig | 6 ++---- drivers/i3c/Kconfig | 12 ++++++++++++ drivers/iio/magnetometer/Kconfig | 3 +-- drivers/misc/amd-sbi/Kconfig | 3 +-- 4 files changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 41c381764c2b..ecfba861f66d 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1493,8 +1493,7 @@ config SENSORS_LM73 =20 config SENSORS_LM75 tristate "National Semiconductor LM75 and compatibles" - depends on I2C - depends on I3C || !I3C + depends on I3C_OR_I2C select REGMAP_I2C select REGMAP_I3C if I3C help @@ -2392,8 +2391,7 @@ config SENSORS_TMP103 =20 config SENSORS_TMP108 tristate "Texas Instruments TMP108" - depends on I2C - depends on I3C || !I3C + depends on I3C_OR_I2C select REGMAP_I2C select REGMAP_I3C if I3C help diff --git a/drivers/i3c/Kconfig b/drivers/i3c/Kconfig index 30a441506f61..626c54b386d5 100644 --- a/drivers/i3c/Kconfig +++ b/drivers/i3c/Kconfig @@ -22,3 +22,15 @@ menuconfig I3C if I3C source "drivers/i3c/master/Kconfig" endif # I3C + +config I3C_OR_I2C + tristate + default m if I3C=3Dm + default I2C + help + Device drivers using module_i3c_i2c_driver() can use either + i2c or i3c hosts, but cannot be built-in for the kernel when + CONFIG_I3C=3Dm. + + Add 'depends on I2C_OR_I3C' in Kconfig for those drivers to + get the correct dependencies. diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kc= onfig index 9345fb6d5317..fb313e591e85 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -143,8 +143,7 @@ config MMC5633 tristate "MEMSIC MMC5633 3-axis magnetic sensor" select REGMAP_I2C select REGMAP_I3C if I3C - depends on I2C - depends on I3C || !I3C + depends on I3C_OR_I2C help Say yes here to build support for the MEMSIC MMC5633 3-axis magnetic sensor. diff --git a/drivers/misc/amd-sbi/Kconfig b/drivers/misc/amd-sbi/Kconfig index be022c71a90c..30e7fad7356c 100644 --- a/drivers/misc/amd-sbi/Kconfig +++ b/drivers/misc/amd-sbi/Kconfig @@ -1,10 +1,9 @@ # SPDX-License-Identifier: GPL-2.0-only config AMD_SBRMI_I2C tristate "AMD side band RMI support" - depends on I2C + depends on I3C_OR_I2C depends on ARM || ARM64 || COMPILE_TEST select REGMAP_I2C - depends on I3C || !I3C select REGMAP_I3C if I3C help Side band RMI over I2C/I3C support for AMD out of band management. --=20 2.39.5