diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0558-BCM270X_DT-Add-i2c-sensor-overlay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0558-BCM270X_DT-Add-i2c-sensor-overlay.patch | 92 |
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"; ++ }; ++}; |