[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@xxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxxxxxxxx

To: Sudeep Holla <sudeep.holla@xxxxxxxxxx>
To: Cristian Marussi <cristian.marussi@xxxxxxx>
To: Michael Turquette <mturquette@xxxxxxxxxxxx>
To: Nicolas Schier <nsc@xxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
Cc: Brian Masney <bmasney@xxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Cc: Frank Li <Frank.Li@xxxxxxx>
Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
Cc: Fabio Estevam <festevam@xxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Jyoti Bhayana <jbhayana@xxxxxxxxxx>
Cc: Jonathan Cameron <jic23@xxxxxxxxxx>
Cc: David Lechner <dlechner@xxxxxxxxxxxx>
Cc: Nuno Sá <nuno.sa@xxxxxxxxxx>
Cc: Andy Shevchenko <andy@xxxxxxxxxx>
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Ulf Hansson <ulfh@xxxxxxxxxx>
Cc: Liam Girdwood <lgirdwood@xxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: arm-scmi@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-clk@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-pm@xxxxxxxxxxxxxxx
Cc: imx@xxxxxxxxxxxxxxx
Cc: linux-hwmon@xxxxxxxxxxxxxxx
Cc: linux-iio@xxxxxxxxxxxxxxx
Cc: linux-input@xxxxxxxxxxxxxxx
Cc: linux-rtc@xxxxxxxxxxxxxxx
Cc: linux-kbuild@xxxxxxxxxxxxxxx

---
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@xxxxxxxxxxxxxxxx>