Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) Kernel driver smsc47m1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) ======================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Supported chips:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)   * SMSC LPC47B27x, LPC47M112, LPC47M10x, LPC47M13x, LPC47M14x,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)     LPC47M15x and LPC47M192
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)     Addresses scanned: none, address read from Super I/O config space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)     Prefix: 'smsc47m1'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)     Datasheets:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	http://www.smsc.com/media/Downloads_Public/Data_Sheets/47b272.pdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	http://www.smsc.com/media/Downloads_Public/Data_Sheets/47m10x.pdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	http://www.smsc.com/media/Downloads_Public/Data_Sheets/47m112.pdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	http://www.smsc.com/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)   * SMSC LPC47M292
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)     Addresses scanned: none, address read from Super I/O config space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)     Prefix: 'smsc47m2'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)     Datasheet: Not public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)   * SMSC LPC47M997
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)     Addresses scanned: none, address read from Super I/O config space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)     Prefix: 'smsc47m1'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)     Datasheet: none
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) Authors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)      - Mark D. Studebaker <mdsxyz123@yahoo.com>,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)      - With assistance from Bruce Allen <ballen@uwm.edu>, and his
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)        fan.c program:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)        - http://www.lsc-group.phys.uwm.edu/%7Eballen/driver/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)      - Gabriele Gorla <gorlik@yahoo.com>,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)      - Jean Delvare <jdelvare@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) Description
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) -----------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) The Standard Microsystems Corporation (SMSC) 47M1xx Super I/O chips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) contain monitoring and PWM control circuitry for two fans.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) The LPC47M15x, LPC47M192 and LPC47M292 chips contain a full 'hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) monitoring block' in addition to the fan monitoring and control. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) hardware monitoring block is not supported by this driver, use the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) smsc47m192 driver for that.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) No documentation is available for the 47M997, but it has the same device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) ID as the 47M15x and 47M192 chips and seems to be compatible.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) Fan rotation speeds are reported in RPM (rotations per minute). An alarm is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) triggered if the rotation speed has dropped below a programmable limit. Fan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) readings can be divided by a programmable divider (1, 2, 4 or 8) to give
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) the readings more range or accuracy. Not all RPM values can accurately be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) represented, so some rounding is done. With a divider of 2, the lowest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) representable value is around 2600 RPM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) PWM values are from 0 to 255.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) If an alarm triggers, it will remain triggered until the hardware register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) is read at least once. This means that the cause for the alarm may
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) already have disappeared! Note that in the current implementation, all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) hardware registers are read whenever any data is read (unless it is less
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) than 1.5 seconds since the last update). This means that you can easily
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) miss once-only alarms.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) ------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) The lm_sensors project gratefully acknowledges the support of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) Intel in the development of this driver.