[PATCH v4 2/2] hwmon: Add driver for Texas Instruments TMP512/513 sensor chips

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dt-bindings: Add TMP512/513 documentation

Add documentation for TMP512/513 sensor chips

Signed-off-by: Eric Tremblay <etremblay@xxxxxxxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/hwmon/tmp513.txt      | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/tmp513.txt

diff --git a/Documentation/devicetree/bindings/hwmon/tmp513.txt b/Documentation/devicetree/bindings/hwmon/tmp513.txt
new file mode 100644
index 000000000000..dbfade74f6b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/tmp513.txt
@@ -0,0 +1,32 @@
+TMP513 system monitor sensor
+-------------------------
+
+Require node properties:
+- compatible: one of
+		"ti,tmp512"
+		"ti,tmp513"
+- reg : the I2C address of the device. This is 0x5c, 0x5d, 0x5e, or 0x5f.
+
+Optional properties:
+- shunt-resistor-uohm : The shunt resistor value in uOhm. If 0, the calibration process
+		will be skiped and the current and power measurement engine will not work.
+		Temperature and voltage measurement will continue to work. The shunt value also
+		need to respect : rshunt <= pga-gain * 40 * 1000 * 1000. If not, it's not possible
+		to compute a valid calibration value. Default to 1000 uOhm.
+- pga-gain: The gain value for the PGA function. This is 8, 4, 2 or 1. Default to 8.
+		The PGA gain affect the shunt voltage range.
+		The range will be equal to: pga-gain * 40mV.
+- bus-voltage-range: 32V or 16V, default to 32V.
+- nfactor: u8 array of three(TMP513) or two(TMP512) n-Factor value for each remote
+		temperature channel. Default to 0.
+		See datasheet Table 11 for n-Factor range list and value interpretation.
+
+Example:
+	tmp513@5c {
+		  compatible = "ti,tmp513";
+		  reg = <0x5C>;
+		  shunt-resistor-uohm = <330000>;
+		  bus-voltage-range = <32>;
+		  pga-gain = <8>;
+		  nfactor = [01 F3 00];
+	};
-- 
2.17.1





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