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Add a new driver for the Kontron SMARC-sAM67 board management controller. It has two voltage sensors and one temperature sensor. Signed-off-by: Michael Walle <mwalle@kernel.org> Link: https://lore.kernel.org/r/20250912120745.2295115-7-mwalle@kernel.org [groeck: Added sa67 to index.rst] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
42 lines
1.0 KiB
ReStructuredText
42 lines
1.0 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-only
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Kernel driver sa67mcu
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=====================
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Supported chips:
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* Kontron sa67mcu
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Prefix: 'sa67mcu'
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Datasheet: not available
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Authors: Michael Walle <mwalle@kernel.org>
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Description
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-----------
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The sa67mcu is a board management controller which also exposes a hardware
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monitoring controller.
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The controller has two voltage and one temperature sensor. The values are
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hold in two 8 bit registers to form one 16 bit value. Reading the lower byte
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will also capture the high byte to make the access atomic. The unit of the
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volatge sensors are 1mV and the unit of the temperature sensor is 0.1degC.
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Sysfs entries
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-------------
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The following attributes are supported.
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======================= ========================================================
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in0_label "VDDIN"
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in0_input Measured VDDIN voltage.
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in1_label "VDD_RTC"
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in1_input Measured VDD_RTC voltage.
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temp1_input MCU temperature. Roughly the board temperature.
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======================= ========================================================
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