Include tsl4531, veml6070 and hdc100x dtoverlay (#2252)

This commit adds the needed kernel config keys and extends the
i2c-sensor-overlay.dts file with support for:
* the Texas Instruments HDC100x temp sensor
* the AMS TSL4531 digital ambient light sensor
* the Vishay VEML6070 ultraviolet light sensor

Author: ubergesundheit

arch/arm/boot/dts/overlays/README

@@ -756,8 +756,8 @@ Name:   i2c-sensor
 Info:   Adds support for a number of I2C barometric pressure and temperature
         sensors on i2c_arm
 Load:   dtoverlay=i2c-sensor,<param>=<val>
-Params: addr                    Set the address for the BME280, BMP280, TMP102
-                                or LM75
+Params: addr                    Set the address for the BME280, BMP280, TMP102,
+                                HDC100X or LM75
 
         bme280                  Select the Bosch Sensortronic BME280
                                 Valid addresses 0x76-0x77, default 0x76
@@ -769,6 +769,9 @@ Params: addr                    Set the address for the BME280, BMP280, TMP102
         bmp280                  Select the Bosch Sensortronic BMP280
                                 Valid addresses 0x76-0x77, default 0x76
 
+        hdc100x                 Select the Texas Instruments HDC100x temp sensor
+                                Valid addresses 0x40-0x43, default 0x40
+
         htu21                   Select the HTU21 temperature and humidity sensor
 
         lm75                    Select the Maxim LM75 temperature sensor
@@ -782,6 +785,12 @@ Params: addr                    Set the address for the BME280, BMP280, TMP102
         tmp102                  Select the Texas Instruments TMP102 temp sensor
                                 Valid addresses 0x48-0x4b, default 0x48
 
+        tsl4531                 Select the AMS TSL4531 digital ambient light
+                                sensor
+
+        veml6070                Select the Vishay VEML6070 ultraviolet light
+                                sensor
+
 
 Name:   i2c0-bcm2708
 Info:   Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations

arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts

@@ -126,9 +126,54 @@
 		};
 	};
 
+	fragment@8 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			hdc100x: hdc100x@40 {
+				compatible = "hdc100x";
+				reg = <0x40>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@9 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			tsl4531: tsl4531@29 {
+				compatible = "tsl4531";
+				reg = <0x29>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@10 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			veml6070: veml6070@38 {
+				compatible = "veml6070";
+				reg = <0x38>;
+				status = "okay";
+			};
+		};
+	};
+
 	__overrides__ {
 		addr =  <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
-			<&lm75>,"reg:0";
+			<&lm75>,"reg:0",<&hdc100x>,"reg:0";
 		bme280 = <0>,"+0";
 		bmp085 = <0>,"+1";
 		bmp180 = <0>,"+2";
@@ -138,5 +183,8 @@
 		lm75addr = <&lm75>,"reg:0";
 		si7020 = <0>,"+6";
 		tmp102 = <0>,"+7";
+		hdc100x = <0>,"+8";
+		tsl4531 = <0>,"+9";
+		veml6070 = <0>,"+10";
 	};
 };

arch/arm/configs/bcm2709_defconfig

@@ -1184,8 +1184,11 @@ CONFIG_IIO_BUFFER_CB=m
 CONFIG_MCP320X=m
 CONFIG_MCP3422=m
 CONFIG_DHT11=m
+CONFIG_HDC100X=m
 CONFIG_HTU21=m
 CONFIG_INV_MPU6050_I2C=m
+CONFIG_TSL4531=m
+CONFIG_VEML6070=m
 CONFIG_BMP280=m
 CONFIG_PWM_BCM2835=m
 CONFIG_PWM_PCA9685=m

arch/arm/configs/bcmrpi_defconfig

@@ -1190,8 +1190,11 @@ CONFIG_IIO_BUFFER_CB=m
 CONFIG_MCP320X=m
 CONFIG_MCP3422=m
 CONFIG_DHT11=m
+CONFIG_HDC100X=m
 CONFIG_HTU21=m
 CONFIG_INV_MPU6050_I2C=m
+CONFIG_TSL4531=m
+CONFIG_VEML6070=m
 CONFIG_BMP280=m
 CONFIG_PWM_BCM2835=m
 CONFIG_PWM_PCA9685=m