From: "Tremblay, Eric" <etremblay@distech-controls.com>
To: "linux-hwmon@vger.kernel.org" <linux-hwmon@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Cc: Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
Jonathan Corbet <corbet@lwn.net>
Subject: [PATCH v6 1/2] hwmon: Add driver for Texas Instruments TMP512/513 sensor chips
Date: Tue, 29 Oct 2019 15:04:31 +0000 [thread overview]
Message-ID: <DM6PR01MB4844A7A2E7DCA9168D44F34195610@DM6PR01MB4844.prod.exchangelabs.com> (raw)
dt-bindings: hwmon: Add TMP512/513
Add dt-binding for TMP512/513 sensor chips
Signed-off-by: Eric Tremblay <etremblay@distech-controls.com>
---
.../devicetree/bindings/hwmon/ti,tmp513.yaml | 88 +++++++++++++++++++
1 file changed, 88 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml
new file mode 100644
index 000000000000..e5f3c72ff548
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2018 Linaro Ltd.
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/ti,tmp513.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TMP513/512 system monitor sensor
+
+maintainers:
+ - Eric Tremblay <etremblay@distech-controls.com>
+
+description: |
+ The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors that include
+ remote sensors, a local temperature sensor, and a high-side current shunt monitor.
+ These system monitors have the capability of measuring remote temperatures,
+ on-chip temperatures, and system voltage/power/current consumption.
+
+ Datasheets:
+ http://www.ti.com/lit/gpn/tmp513
+ http://www.ti.com/lit/gpn/tmp512
+
+
+properties:
+ compatible:
+ enum:
+ - ti,tmp512
+ - ti,tmp513
+
+ reg:
+ maxItems: 1
+
+ shunt-resistor-micro-ohms:
+ description: |
+ 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: 1000
+
+ ti,pga-gain:
+ description: |
+ The gain value for the PGA function. This is 8, 4, 2 or 1.
+ The PGA gain affect the shunt voltage range.
+ The range will be equal to: pga-gain * 40mV
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 4, 8]
+ default: 8
+
+ ti,bus-voltage-range-volt:
+ description: |
+ This is the operating range of the bus voltage
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [16, 32]
+ default: 32
+
+ ti,nfactor:
+ description: |
+ Array of three(TMP513) or two(TMP512) n-Factor value for each remote
+ temperature channel.
+ See datasheet Table 11 for n-Factor range list and value interpretation.
+ allOf:
+ - $ref: /schemas/types.yaml#definitions/uint8-array
+ - minItems: 2
+ maxItems: 3
+ items:
+ default: 0
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ i2c {
+ tmp513@5c {
+ compatible = "ti,tmp513";
+ reg = <0x5C>;
+ shunt-resistor-micro-ohms = <330000>;
+ ti,bus-voltage-range-volts = <32>;
+ ti,pga-gain = <8>;
+ ti,nfactor = [01 F3 00];
+ };
+ };
--
2.17.1
next reply other threads:[~2019-10-29 15:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 15:04 Tremblay, Eric [this message]
2019-11-02 15:15 ` [PATCH v6 1/2] hwmon: Add driver for Texas Instruments TMP512/513 sensor chips Guenter Roeck
2019-11-02 15:30 ` Guenter Roeck
2019-11-04 14:28 ` Tremblay, Eric
2019-11-04 21:45 ` Rob Herring
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