linux-kernel - [PATCH v4 2/2] devicetree: hwmon: shtc1: Add sensirion,shtc1.yaml

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Message-Id: <20200708040748.9014-3-chris.ruehl@gtsys.com.hk>
Date:   Wed,  8 Jul 2020 12:07:47 +0800
From:   Chris Ruehl <chris.ruehl@...ys.com.hk>
To:     Chris Ruehl <chris.ruehl@...ys.com.hk>
Cc:     Jack Lo <jack.lo@...ys.com.hk>, devicetree@...r.kernel.org,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 2/2] devicetree: hwmon: shtc1: Add sensirion,shtc1.yaml

Add documentation for the newly added DTS support in the shtc1 driver.
To align with the drivers logic to have high precision by default
a boolean sensirion,low_precision is used to switch to low precision.

Signed-off-by: Chris Ruehl <chris.ruehl@...ys.com.hk>
---
 .../bindings/hwmon/sensirion,shtc1.yaml       | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml b/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
new file mode 100644
index 000000000000..6725a7b646b7
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/sensirion,shtc1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sensirion SHTC1 Humidity and Temperature Sensor IC
+
+maintainers:
+  - chris.ruehl@...ys.com.hk
+
+description: |
+  The SHTC1, SHTW1 and SHTC3 are digital humidity and temperature sensor
+  designed especially for battery-driven high-volume consumer electronics
+  applications.
+  For further information refere to Documentation/hwmon/shtc1.rst
+
+  This binding document describes the binding for the hardware monitor
+  portion of the driver.
+
+properties:
+  compatible:
+    enum:
+      - sensirion,shtc1
+      - sensirion,shtw1
+      - sensirion,shtc3
+
+  reg:
+    maxItems: 1
+    description: I2C address 0x70
+
+  sensirion,blocking_io:
+    $ref: /schemas/types.yaml#definitions/flag
+    description:
+      If set the i2c bus hold until measure finished.
+
+  sensirion,low_precision:
+    $ref: /schemas/types.yaml#definitions/flag
+    description:
+      If set aquire data with low precision (not recommended).
+      The driver aquire data with high precision by default.
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    i2c1 {
+      status = "okay";
+      clock-frequency = <400000>;
+
+      shtc3@70 {
+        compatible = "sensirion,shtc3";
+        reg = <0x70>
+        sensirion,blocking_io;
+        status = "okay";
+      };
+    };
+...
-- 
2.20.1