1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
From 72b5fe0084ce231fc0325cdf6151da0e83f5ef4e Mon Sep 17 00:00:00 2001
From: Alex Tucker <alex@floop.org.uk>
Date: Tue, 3 Jan 2017 21:30:41 +0000
Subject: [PATCH] Add support for Silicon Labs Si7013/20/21
humidity/temperature sensor. (#1765)
---
arch/arm/boot/dts/overlays/README | 3 ++
arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts | 49 +++++++++++++----------
2 files changed, 31 insertions(+), 21 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -543,6 +543,9 @@ Params: bmp085 Select t
bmp280 Select the Bosch sensortronic BMP280
+ si7020 Select the Silicon Labs Si7013/20/21 humidity/
+ temperature sensor
+
Name: i2c0-bcm2708
Info: Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
@@ -1,34 +1,41 @@
-// Definitions for a few digital barometric pressure and temperature sensors
+// Definitions for I2C based sensors using the Industrial IO interface.
/dts-v1/;
/plugin/;
/ {
- compatible = "brcm,bcm2708";
+ 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";
- };
- };
- };
+ 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";
+ };
+
+ si7020: si7020@40 {
+ compatible = "si7020";
+ reg = <0x40>;
+ status = "disable";
+ };
+ };
+ };
__overrides__ {
bmp085 = <&bmp085>,"status";
bmp280 = <&bmp280>,"status";
+ si7020 = <&si7020>,"status";
};
};
|
