[PATCH v2 0/2] firmware: arm_scmi: Ensure automatic module loading

[Bjorn Andersson]

SCMI drivers such as the Arm SCMI CPUfreq driver are allowed to built as
modules, but they are then not automatically loaded. Rework the SCMI
device table alias support to make modpost consume the information from
MODULE_DEVICE_TABLE(scmi, ...) and allow drivers to be loaded based on
this information, if known. Also add a protocol-based alias to also
trigger driver loading when only the SCMI protocol id is known.

Signed-off-by: Bjorn Andersson <bjorn.andersson at oss.qualcomm.com>
---
Changes in v2:
- Use request_module_nowait()
- Drop #include <linux/mod_devicetable.h> from scmi_protocol.h
- Link to v1: https://patch.msgid.link/20260616-scmi-modalias-v1-0-662b8dd52ab2@oss.qualcomm.com

To: Sudeep Holla <sudeep.holla at kernel.org>
To: Cristian Marussi <cristian.marussi at arm.com>
To: Michael Turquette <mturquette at baylibre.com>
To: Nicolas Schier <nsc at kernel.org>
Cc: Stephen Boyd <sboyd at kernel.org>
Cc: Brian Masney <bmasney at redhat.com>
Cc: "Rafael J. Wysocki" <rafael at kernel.org>
Cc: Viresh Kumar <viresh.kumar at linaro.org>
Cc: Frank Li <Frank.Li at nxp.com>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Guenter Roeck <linux at roeck-us.net>
Cc: Jyoti Bhayana <jbhayana at google.com>
Cc: Jonathan Cameron <jic23 at kernel.org>
Cc: David Lechner <dlechner at baylibre.com>
Cc: Nuno Sá <nuno.sa at analog.com>
Cc: Andy Shevchenko <andy at kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov at gmail.com>
Cc: Ulf Hansson <ulfh at kernel.org>
Cc: Liam Girdwood <lgirdwood at gmail.com>
Cc: Mark Brown <broonie at kernel.org>
Cc: Philipp Zabel <p.zabel at pengutronix.de>
Cc: Alexandre Belloni <alexandre.belloni at bootlin.com>
Cc: Nathan Chancellor <nathan at kernel.org>
Cc: arm-scmi at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-clk at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Cc: linux-pm at vger.kernel.org
Cc: imx at lists.linux.dev
Cc: linux-hwmon at vger.kernel.org
Cc: linux-iio at vger.kernel.org
Cc: linux-input at vger.kernel.org
Cc: linux-rtc at vger.kernel.org
Cc: linux-kbuild at vger.kernel.org

---
Bjorn Andersson (2):
      module: add SCMI device table alias support
      firmware: arm_scmi: request modules for discovered protocols

 drivers/clk/clk-scmi.c                         |  1 +
 drivers/cpufreq/scmi-cpufreq.c                 |  1 +
 drivers/firmware/arm_scmi/bus.c                | 20 ++++++++++----------
 drivers/firmware/arm_scmi/driver.c             |  3 +++
 drivers/firmware/arm_scmi/scmi_power_control.c |  1 +
 drivers/firmware/imx/sm-cpu.c                  |  1 +
 drivers/firmware/imx/sm-lmm.c                  |  1 +
 drivers/firmware/imx/sm-misc.c                 |  1 +
 drivers/hwmon/scmi-hwmon.c                     |  1 +
 drivers/iio/common/scmi_sensors/scmi_iio.c     |  1 +
 drivers/input/keyboard/imx-sm-bbm-key.c        |  1 +
 drivers/pmdomain/arm/scmi_perf_domain.c        |  1 +
 drivers/pmdomain/arm/scmi_pm_domain.c          |  1 +
 drivers/powercap/arm_scmi_powercap.c           |  1 +
 drivers/regulator/scmi-regulator.c             |  1 +
 drivers/reset/reset-scmi.c                     |  1 +
 drivers/rtc/rtc-imx-sm-bbm.c                   |  1 +
 include/linux/mod_devicetable.h                | 12 ++++++++++++
 include/linux/scmi_protocol.h                  |  5 +----
 scripts/mod/devicetable-offsets.c              |  4 ++++
 scripts/mod/file2alias.c                       | 13 +++++++++++++
 21 files changed, 58 insertions(+), 14 deletions(-)
---
base-commit: 8d6dbbbe3ba62de0a63e962ee004afb848c8e3ac
change-id: 20260616-scmi-modalias-0f32421bd452

Best regards,
--  
Bjorn Andersson <bjorn.andersson at oss.qualcomm.com>