From fa6a21d6e2e8d5416ec9d2ca7841777aa0822796 Mon Sep 17 00:00:00 2001
From: Mart Lubbers <mart@martlubbers.net>
Date: Tue, 11 May 2021 11:51:35 +0200
Subject: [PATCH] overlays: add bh1750 and ccs811 to i2c-sensor (#4334)

See: https://github.com/raspberrypi/linux/pull/4334
---
 arch/arm/boot/dts/overlays/README             | 15 +++++---
 .../boot/dts/overlays/i2c-sensor-overlay.dts  | 35 ++++++++++++++++++-
 2 files changed, 45 insertions(+), 5 deletions(-)

--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1482,11 +1482,15 @@ Params: abx80x                  Select o
 
 
 Name:   i2c-sensor
-Info:   Adds support for a number of I2C barometric pressure and temperature
-        sensors on i2c_arm
+Info:   Adds support for a number of I2C barometric pressure, temperature,
+        light level and chemical sensors on i2c_arm
 Load:   dtoverlay=i2c-sensor,<param>=<val>
-Params: addr                    Set the address for the BME280, BME680, BMP280,
-                                DS1621, HDC100X, LM75, SHT3x or TMP102
+Params: addr                    Set the address for the BH1750, BME280, BME680,
+                                BMP280, CCS811, DS1621, HDC100X, LM75, SHT3x or
+                                TMP102
+
+        bh1750                  Select the Rohm BH1750 ambient light sensor
+                                Valid addresses 0x23 or 0x5c, default 0x23
 
         bme280                  Select the Bosch Sensortronic BME280
                                 Valid addresses 0x76-0x77, default 0x76
@@ -1501,6 +1505,9 @@ Params: addr                    Set the
         bmp280                  Select the Bosch Sensortronic BMP280
                                 Valid addresses 0x76-0x77, default 0x76
 
+        ccs811                  Select the AMS CCS811 digital gas sensor
+                                Valid addresses 0x5a-0x5b, default 0x5b
+
         ds1621                  Select the Dallas Semiconductors DS1621 temp
                                 sensor. Valid addresses 0x48-0x4f, default 0x48
 
--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
@@ -261,10 +261,41 @@
 		};
 	};
 
+	fragment@17 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ccs811: ccs811@5b {
+				compatible = "ccs811";
+				reg = <0x5b>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@18 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			bh1750: bh1750@23 {
+				compatible = "bh1750";
+				reg = <0x23>;
+				status = "okay";
+			};
+		};
+	};
+
 	__overrides__ {
 		addr =  <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
 			<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
-			<&ds1621>,"reg:0", <&bme680>,"reg:0";
+			<&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0",
+			<&bh1750>,"reg:0";
 		bme280 = <0>,"+0";
 		bmp085 = <0>,"+1";
 		bmp180 = <0>,"+2";
@@ -283,5 +314,7 @@
 		bme680 = <0>,"+14";
 		sps30 = <0>,"+15";
 		sgp30 = <0>,"+16";
+		ccs811 = <0>, "+17";
+		bh1750 = <0>, "+18";
 	};
 };