From: Stefan Tatschner <rumpelsepp@sevenbyte.org>
Date: Mon, 29 May 2017 19:46:16 +0000 (+0200)
Subject: Add device tree config for htu21
X-Git-Tag: archive/raspbian/4.9.82-1+deb9u3+rpi1_jessie~5^2~205
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=1fb3e942d0d10ddc3d872cbee380655826a5961c;p=linux-4.9.git

Add device tree config for htu21

See: https://github.com/raspberrypi/linux/pull/2041

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---

diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index bd7563be019c..1a905dba7fe1 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -673,6 +673,8 @@ Params: addr                    Set the address for the BME280, BMP280, TMP102
         bmp280                  Select the Bosch Sensortronic BMP280
                                 Valid addresses 0x76-0x77, default 0x76
 
+        htu21                   Select the HTU21 temperature and humidity sensor
+
         lm75                    Select the Maxim LM75 temperature sensor
                                 Valid addresses 0x48-0x4f, default 0x4f
 
diff --git a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
index d2f0008addfa..17c27e3b666a 100644
--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
@@ -67,6 +67,21 @@
 	};
 
 	fragment@4 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			htu21: htu21@40 {
+				compatible = "htu21";
+				reg = <0x40>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@5 {
 		target = <&i2c_arm>;
 		__dormant__ {
 			#address-cells = <1>;
@@ -81,7 +96,7 @@
 		};
 	};
 
-	fragment@5 {
+	fragment@6 {
 		target = <&i2c_arm>;
 		__dormant__ {
 			#address-cells = <1>;
@@ -96,7 +111,7 @@
 		};
 	};
 
-	fragment@6 {
+	fragment@7 {
 		target = <&i2c_arm>;
 		__dormant__ {
 			#address-cells = <1>;
@@ -118,9 +133,10 @@
 		bmp085 = <0>,"+1";
 		bmp180 = <0>,"+2";
 		bmp280 = <0>,"+3";
-		lm75 = <0>,"+4";
+		htu21 = <0>,"+4";
+		lm75 = <0>,"+5";
 		lm75addr = <&lm75>,"reg:0";
-		si7020 = <0>,"+5";
-		tmp102 = <0>,"+6";
+		si7020 = <0>,"+6";
+		tmp102 = <0>,"+7";
 	};
 };