Signed-off-by: John Muir <[email protected]>
---
.../devicetree/bindings/hwmon/max31760.txt | 58 ++++++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/max31760.txt
diff --git a/Documentation/devicetree/bindings/hwmon/max31760.txt
b/Documentation/devicetree/bindings/hwmon/max31760.txt
new file mode 100644
index 000000000000..43787a77c322
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max31760.txt
@@ -0,0 +1,58 @@
+MAX31760 fan controller
+-----------------------
+
+This device supports I2C only. Many properties of this device are configurable
+thorugh the hwmon interface. See also Documentation/hwmon/max31760.
+
+Required node properties:
+- compatible : "maxim,max31760"
+- reg : The I2C address of the device. This is 0x50 - 0x57 depending on the
+ hardware configuration.
+
+Optional node properties:
+- maxim,fan1-enabled - 1 to enable, 0 to disable. Default: 1.
+- maxim,fan2-enabled - 1 to enable, 0 to disable. Default: 1.
+- maxim,fan1-label - String: Hwmon fan1_label.
+- maxim,fan2-label - String: Hwmon fan2_label.
+- maxim,fan-fail-full-only - Set to 1 to assert a fan failure only when the
+ PWM is at 100%. Default: 0.
+- maxim,fan-rd-signal - Set to 1 if fan(s) provide a rotation
+ detection (RD) signal, or 0 if the fan
+ generates square-wave pulses. Default: 0.
+- maxim,fan-rd-polarity - 0: RD is low when the fan is running.
+ 1: RD is high when the fan is running.
+ Only relevant when fan-rd-signal is 1.
+ Default: 0.
+- maxim,fan-signal-enabled - Set to 1 if externally driving FF/FS low
+ should force PWM output to 100%. Default: 0.
+- maxim,fan-spin-up-enabled - For fan startup: Set to 1 to set the PWM to
+ 100% until tach is detected or two seconds
+ have passed before reducing to the target
+ value. Default: 0.
+- maxim,pwm-polarity - 0: 100% PWM is when PWM is high.
+ 1: 100% PWM is when PWM is low.
+ Default: 0.
+- maxim,pwm-pulse-stretch-enabled
+ - 1 to enable PWM pulse stretching, 0 to
+ disable. Default: 0.
+- maxim,pwm-zero-fan-can-fail - 0: Fan failure detection disabled when PWM is
+ ramping to 0%.
+ 1: Fan failure detection enabled for all PWM
+ values.
+ Default: 0.
+- maxim,temp1-label - String: Hwmon temp1_label.
+- maxim,temp2-label - String: Hwmon temp2_label.
+- maxim,temp2-ideality - Set ideality factor for the remote temperature
+ sensor. Integer with range 0 to 63,
+ representing a multiplication factor of 0.9844
+ to 1.0489. Default: 24 (1.0080).
+
+Example:
+ max31760@50 {
+ compatible = "maxim,max31760";
+ reg = <0x50>;
+ maxim,fan1-label = "Left";
+ maxim,fan2-label = "Right";
+ maxim,fan-spin-up-enabled = <1>;
+ maxim,temp2-label = "CPU";
+ };
--
2.12.2.715.g7642488e1d-goog
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
