Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) .. SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) Kernel driver sl28cpld
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) ======================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) Supported chips:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)    * Kontron sl28cpld
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)      Prefix: 'sl28cpld'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)      Datasheet: not available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Authors: Michael Walle <michael@walle.cc>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Description
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) -----------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) The sl28cpld is a board management controller which also exposes a hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) monitoring controller. At the moment this controller supports a single fan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) supervisor. In the future there might be other flavours and additional
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) hardware monitoring might be supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) The fan supervisor has a 7 bit counter register and a counter period of 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) second. If the 7 bit counter overflows, the supervisor will automatically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) switch to x8 mode to support a wider input range at the loss of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) granularity.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) Sysfs entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) -------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) The following attributes are supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) ======================= ========================================================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) fan1_input		Fan RPM. Assuming 2 pulses per revolution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ======================= ========================================================