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91 lines
2.6 KiB
Diff
91 lines
2.6 KiB
Diff
From 72b5fe0084ce231fc0325cdf6151da0e83f5ef4e Mon Sep 17 00:00:00 2001
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From: Alex Tucker <alex@floop.org.uk>
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Date: Tue, 3 Jan 2017 21:30:41 +0000
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Subject: [PATCH] Add support for Silicon Labs Si7013/20/21
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humidity/temperature sensor. (#1765)
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---
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arch/arm/boot/dts/overlays/README | 3 ++
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arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts | 49 +++++++++++++----------
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2 files changed, 31 insertions(+), 21 deletions(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -543,6 +543,9 @@ Params: bmp085 Select t
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bmp280 Select the Bosch sensortronic BMP280
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+ si7020 Select the Silicon Labs Si7013/20/21 humidity/
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+ temperature sensor
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+
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Name: i2c0-bcm2708
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Info: Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
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--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
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@@ -1,34 +1,41 @@
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-// Definitions for a few digital barometric pressure and temperature sensors
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+// Definitions for I2C based sensors using the Industrial IO interface.
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/dts-v1/;
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/plugin/;
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/ {
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- compatible = "brcm,bcm2708";
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+ compatible = "brcm,bcm2708";
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- fragment@0 {
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- target = <&i2c_arm>;
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- __overlay__ {
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- #address-cells = <1>;
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- #size-cells = <0>;
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- status = "okay";
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-
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- bmp085: bmp085@77 {
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- compatible = "bosch,bmp085";
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- reg = <0x77>;
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- default-oversampling = <3>;
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- status = "disable";
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- };
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-
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- bmp280: bmp280@76 {
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- compatible = "bosch,bmp280";
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- reg = <0x76>;
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- status = "disable";
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- };
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- };
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- };
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+ fragment@0 {
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+ target = <&i2c_arm>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ bmp085: bmp085@77 {
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+ compatible = "bosch,bmp085";
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+ reg = <0x77>;
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+ default-oversampling = <3>;
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+ status = "disable";
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+ };
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+
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+ bmp280: bmp280@76 {
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+ compatible = "bosch,bmp280";
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+ reg = <0x76>;
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+ status = "disable";
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+ };
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+
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+ si7020: si7020@40 {
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+ compatible = "si7020";
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+ reg = <0x40>;
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+ status = "disable";
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+ };
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+ };
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+ };
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__overrides__ {
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bmp085 = <&bmp085>,"status";
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bmp280 = <&bmp280>,"status";
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+ si7020 = <&si7020>,"status";
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};
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};
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