From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- Documentation/hwmon/tc654.rst | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/hwmon/tc654.rst (limited to 'Documentation/hwmon/tc654.rst') diff --git a/Documentation/hwmon/tc654.rst b/Documentation/hwmon/tc654.rst new file mode 100644 index 000000000..ce546ee6d --- /dev/null +++ b/Documentation/hwmon/tc654.rst @@ -0,0 +1,34 @@ +Kernel driver tc654 +=================== + +Supported chips: + + * Microchip TC654 and TC655 + + Prefix: 'tc654' + Datasheet: http://ww1.m + icrochip.com/downloads/en/DeviceDoc/20001734C.pdf + +Authors: + - Chris Packham + - Masahiko Iwamoto + +Description +----------- +This driver implements support for the Microchip TC654 and TC655. + +The TC654 uses the 2-wire interface compatible with the SMBUS 2.0 +specification. The TC654 has two (2) inputs for measuring fan RPM and +one (1) PWM output which can be used for fan control. + +Configuration Notes +------------------- +Ordinarily the pwm1_mode ABI is used for controlling the pwm output +mode. However, for this chip the output is always pwm, and the +pwm1_mode determines if the pwm output is controlled via the pwm1 value +or via the Vin analog input. + + +Setting pwm1_mode to 1 will cause the pwm output to be driven based on +the pwm1 value. Setting pwm1_mode to 0 will cause the pwm output to be +driven based on the Vin input. -- cgit v1.2.3