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Expose the IOC and board temperature sensors of LSI / Broadcom SAS HBAs through hwmon. Readings come from MPI IO Unit Page 7 via the accessor added in the preceding patch. The same fields are exposed by Broadcom's userspace tooling through the /dev/mpt[23]ctl ioctl path (typically root-only): IOCTemperature and BoardTemperature in lsiutil; ROC and Controller in storcli. With this driver, sensors(1) shows them unprivileged: $ sensors mpt3sas-pci-0200 mpt3sas-pci-0200 Adapter: PCI adapter IOC: +42.0°C Each channel is gated independently by its *TemperatureUnits field through is_visible(); cards that populate only one sensor expose only one input file, and cards that populate neither do not register an hwmon device. The hwmon code is gated directly on CONFIG_HWMON. IS_REACHABLE() is used rather than IS_ENABLED() so that SCSI_MPT3SAS=y with HWMON=m still builds; in that configuration, the sensors are not exposed (same pattern as i915 and xe). Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Louis Sautier <sautier.louis@gmail.com> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Link: https://patch.msgid.link/20260630224922.2543096-3-sautier.louis@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
14 lines
338 B
Makefile
14 lines
338 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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# mpt3sas makefile
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obj-$(CONFIG_SCSI_MPT3SAS) += mpt3sas.o
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mpt3sas-y += mpt3sas_base.o \
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mpt3sas_config.o \
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mpt3sas_scsih.o \
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mpt3sas_transport.o \
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mpt3sas_ctl.o \
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mpt3sas_trigger_diag.o \
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mpt3sas_warpdrive.o \
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mpt3sas_debugfs.o \
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mpt3sas-$(CONFIG_HWMON) += mpt3sas_hwmon.o
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