Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.0 KiB
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37 lines
1.0 KiB
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.. SPDX-License-Identifier: GPL-2.0-only
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Kernel driver sl28cpld
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======================
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Supported chips:
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* Kontron sl28cpld
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Prefix: 'sl28cpld'
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Datasheet: not available
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Authors: Michael Walle <michael@walle.cc>
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Description
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-----------
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The sl28cpld is a board management controller which also exposes a hardware
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monitoring controller. At the moment this controller supports a single fan
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supervisor. In the future there might be other flavours and additional
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hardware monitoring might be supported.
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The fan supervisor has a 7 bit counter register and a counter period of 1
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second. If the 7 bit counter overflows, the supervisor will automatically
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switch to x8 mode to support a wider input range at the loss of
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granularity.
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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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fan1_input Fan RPM. Assuming 2 pulses per revolution.
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======================= ========================================================
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