1 files changed, 92 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0558-BCM270X_DT-Add-i2c-sensor-overlay.patch b/target/linux/brcm2708/patches-4.4/0558-BCM270X_DT-Add-i2c-sensor-overlay.patch
new file mode 100644
index 0000000..4e653c3
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0558-BCM270X_DT-Add-i2c-sensor-overlay.patch
@@ -0,0 +1,92 @@
+From b2a2630ad69cc2f76fc027f1e730d6d82f84ea82 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 5 Dec 2016 17:10:44 +0000
+Subject: [PATCH] BCM270X_DT: Add i2c-sensor overlay
+
+The i2c-sensor overlay is a container for various pressure and
+temperature sensors, currently bmp085 and bmp280. The standalone
+bmp085_i2c-sensor overlay is now deprecated.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/Makefile               |  1 +
+ arch/arm/boot/dts/overlays/README                 | 12 ++++++--
+ arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts | 34 +++++++++++++++++++++++
+ 3 files changed, 45 insertions(+), 2 deletions(-)
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -42,6 +42,7 @@ dtbo-$(RPI_DT_OVERLAYS) += i2c-gpio.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += i2c-mux.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += i2c-pwm-pca9685a.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += i2c-rtc.dtbo
++dtbo-$(RPI_DT_OVERLAYS) += i2c-sensor.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += i2c0-bcm2708.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += i2c1-bcm2708.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += i2s-gpio28-31.dtbo
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -283,8 +283,7 @@ Params: swap_lr                 Reverse
+ 
+ 
+ Name:   bmp085_i2c-sensor
+-Info:   Configures the BMP085/BMP180 digital barometric pressure and temperature
+-        sensors from Bosch Sensortec
++Info:   This overlay is now deprecated - see i2c-sensor
+ Load:   dtoverlay=bmp085_i2c-sensor
+ Params: <None>
+ 
+@@ -536,6 +535,15 @@ Params: abx80x                  Select o
+                                 source
+ 
+ 
++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: bmp085                  Select the Bosch sensortronic BMP085
++
++        bmp280                  Select the Bosch sensortronic BMP280
++
++
+ Name:   i2c0-bcm2708
+ Info:   Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
+         are usable on all platforms.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+@@ -0,0 +1,34 @@
++// Definitions for a few digital barometric pressure and temperature sensors
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2708";
++
++        fragment@0 {
++                target = <&i2c_arm>;
++                __overlay__ {
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++                        status = "okay";
++
++                        bmp085: bmp085@77 {
++                                compatible = "bosch,bmp085";
++                                reg = <0x77>;
++                                default-oversampling = <3>;
++                                status = "disable";
++                        };
++
++                        bmp280: bmp280@76 {
++                                compatible = "bosch,bmp280";
++                                reg = <0x76>;
++                                status = "disable";
++                        };
++                };
++        };
++
++	__overrides__ {
++		bmp085 = <&bmp085>,"status";
++		bmp280 = <&bmp280>,"status";
++	};
++};