linux-kernel - [PATCH v2 1/2] dt-bindings: hwmon: add binding documentation for adt7475

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Message-Id: <20181108225607.7521-2-chris.packham@alliedtelesis.co.nz>
Date:   Fri,  9 Nov 2018 11:56:06 +1300
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     linux@...ck-us.net, robh+dt@...nel.org, jdelvare@...e.com
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH v2 1/2] dt-bindings: hwmon: add binding documentation for adt7475

With the addition of the invert-pwm property the adt7475 needs its own
binding documentation rather being captured under trivial-devices.txt.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
Changes in v2:
- use pwm-polarity attiribute to indicate normal or inverted polarity.

 .../devicetree/bindings/hwmon/adt7475.txt     | 24 +++++++++++++++++++
 .../devicetree/bindings/trivial-devices.txt   |  4 ----
 2 files changed, 24 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/hwmon/adt7475.txt

diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.txt b/Documentation/devicetree/bindings/hwmon/adt7475.txt
new file mode 100644
index 000000000000..d9212b5e9036
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adt7475.txt
@@ -0,0 +1,24 @@
+*ADT7475 hwmon sensor.
+
+Required properties:
+- compatible: One of
+	"adi,adt7473"
+	"adi,adt7475"
+	"adi,adt7476"
+	"adi,adt7490"
+
+- reg: I2C address
+
+optional properties:
+
+- pwm-polarity: This configures the polarity of the PWM. 0
+		(PWM_POLARITY_NORMAL) uses logic high for 100% duty cycle. 1
+                (PWM_POLARITY_INVERSED) uses logic low for 100% duty cycle.
+
+Example:
+
+hwmon@2e {
+	compatible = ;
+	reg = <0x2e>;
+	pwm-polarity = <1>;
+};
diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt
index 69c934aec13b..4f29100d6bbf 100644
--- a/Documentation/devicetree/bindings/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/trivial-devices.txt
@@ -14,10 +14,6 @@ ad,ad7414		SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert an
 ad,adm9240		ADM9240:  Complete System Hardware Monitor for uProcessor-Based Systems
 adi,adt7461		+/-1C TDM Extended Temp Range I.C
 adt7461			+/-1C TDM Extended Temp Range I.C
-adi,adt7473		+/-1C TDM Extended Temp Range I.C
-adi,adt7475		+/-1C TDM Extended Temp Range I.C
-adi,adt7476		+/-1C TDM Extended Temp Range I.C
-adi,adt7490		+/-1C TDM Extended Temp Range I.C
 adi,adxl345		Three-Axis Digital Accelerometer
 adi,adxl346		Three-Axis Digital Accelerometer (backward-compatibility value "adi,adxl345" must be listed too)
 ams,iaq-core		AMS iAQ-Core VOC Sensor
-- 
2.19.1