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Message-Id: <1443825574-12779-1-git-send-email-const@MakeLinux.com>
Date: Sat, 3 Oct 2015 01:39:34 +0300
From: Constantine Shulyupin <const@...eLinux.com>
To: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
lm-sensors@...sensors.org, Arnd Bergmann <arnd@...db.de>,
Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>
Cc: Constantine Shulyupin <const@...eLinux.com>
Subject: [PATCH v6] Documentation: add Device tree bindings for hwmon/nct7802
Introduced subnodes sensor, fan and peci with properties.
Signed-off-by: Constantine Shulyupin <const@...eLinux.com>
---
Changed in v6:
- Removed previous definition.
- Introduced subnodes sensor, fan and peci with properties.
Changed in v5:
- Fixed typos
Changed in v4:
- Removed registers initialization by names
- Added properties nuvoton,sensor*-type
Changed in v3:
- Fixed vendor prefix
- Added short registers description,
full registers description is available at
https://www.nuvoton.com/hq/products/cloud-computing/hardware-monitors/desktop-server-series/nct7802y/
Changed in v2:
- Removed nct7802,reg-init
- Added registers initialization by names
Introduced in v1:
- nct7802,reg-init
---
.../devicetree/bindings/hwmon/nct7802.txt | 66 ++++++++++++++++++++++
1 file changed, 66 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/nct7802.txt
diff --git a/Documentation/devicetree/bindings/hwmon/nct7802.txt b/Documentation/devicetree/bindings/hwmon/nct7802.txt
new file mode 100644
index 0000000..88ee599
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/nct7802.txt
@@ -0,0 +1,66 @@
+Nuvoton NCT7802Y Hardware Monitoring IC
+
+Required node properties:
+
+ - "compatible": must be "nuvoton,nct7802"
+ - "reg": I2C bus address of the device
+ - #address-cells=<1>;
+ - #size-cells=<0>;
+
+Optional subnodes:
+
+Subnode "sensor" properties:
+ - "reg": index in range 0..3
+ - "compatible", allowed values:
+ - "nuvoton,nct7802-thermal-diode"
+ - "nuvoton,nct7802-thermistor"
+ - "nuvoton,nct7802-voltage"
+
+Sensor at address 2 can't be "nuvoton,nct7802-thermal-diode".
+
+Subnode "fan":
+Required properties:
+ - "reg" :index of in range 0 .. 2.
+ - "compatible", allowed values:
+ "nuvoton,nct7802-fan-pwm" :PWM powered fan
+ "nuvoton,nct7802-fan-dc" :direct current powered fan
+Optional boolean properties:
+ - "invert" :inverted polarity
+ - "open-drain" :open-drain output instead push pull
+
+Subnode "peci" properties:
+ - "reg" :index in range 0..1
+ - "compatible", should be "nuvoton,nct7802-peci"
+
+Not defined sensors, fans and PECI modules will be disabled.
+
+Example nct7802 node:
+
+nct7802 {
+ compatible = "nuvoton,nct7802";
+ reg = <0x2a>;
+ #address-cells=<1>;
+ #size-cells=<0>;
+ sensor@0 {
+ reg = <0>;
+ compatible = "nuvoton,nct7802-thermistor";
+ };
+ sensor@2 {
+ reg = <2>;
+ compatible = "nuvoton,nct7802-thermal-diode";
+ };
+ fan@0 {
+ reg = <0>;
+ compatible = "nuvoton,nct7802-fan-pwm";
+ };
+ fan@1 {
+ reg = <1>;
+ compatible = "nuvoton,nct7802-fan-dc";
+ invert;
+ open-drain;
+ };
+ peci@0 {
+ reg = <0>;
+ compatible = "nuvoton,nct7802-peci";
+ };
+};
--
1.9.1
--
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