target/linux/brcm2708/patches-4.4/0563-Add-support-for-Silicon-Labs-Si7013-20-21-humidity-t.patch

   1 From 72b5fe0084ce231fc0325cdf6151da0e83f5ef4e Mon Sep 17 00:00:00 2001
   2 From: Alex Tucker <alex@floop.org.uk>
   3 Date: Tue, 3 Jan 2017 21:30:41 +0000
   4 Subject: [PATCH] Add support for Silicon Labs Si7013/20/21
   5  humidity/temperature sensor. (#1765)
   6
   7 ---
   8  arch/arm/boot/dts/overlays/README                 |  3 ++
   9  arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts | 49 +++++++++++++----------
  10  2 files changed, 31 insertions(+), 21 deletions(-)
  11
  12 diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
  13 index 7aee1af..44ad21f 100644
  14 --- a/arch/arm/boot/dts/overlays/README
  15 +++ b/arch/arm/boot/dts/overlays/README
  16 @@ -543,6 +543,9 @@ Params: bmp085                  Select the Bosch sensortronic BMP085
  17
  18          bmp280                  Select the Bosch sensortronic BMP280
  19
  20 +        si7020                  Select the Silicon Labs Si7013/20/21 humidity/
  21 +                                temperature sensor
  22 +
  23
  24  Name:   i2c0-bcm2708
  25  Info:   Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
  26 diff --git a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  27 index f6d134c..31bda8d 100644
  28 --- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  29 +++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  30 @@ -1,34 +1,41 @@
  31 -// Definitions for a few digital barometric pressure and temperature sensors
  32 +// Definitions for I2C based sensors using the Industrial IO interface.
  33  /dts-v1/;
  34  /plugin/;
  35
  36  / {
  37 -        compatible = "brcm,bcm2708";
  38 +       compatible = "brcm,bcm2708";
  39
  40 -        fragment@0 {
  41 -                target = <&i2c_arm>;
  42 -                __overlay__ {
  43 -                        #address-cells = <1>;
  44 -                        #size-cells = <0>;
  45 -                        status = "okay";
  46 +       fragment@0 {
  47 +               target = <&i2c_arm>;
  48 +               __overlay__ {
  49 +                       #address-cells = <1>;
  50 +                       #size-cells = <0>;
  51 +                       status = "okay";
  52
  53 -                        bmp085: bmp085@77 {
  54 -                                compatible = "bosch,bmp085";
  55 -                                reg = <0x77>;
  56 -                                default-oversampling = <3>;
  57 -                                status = "disable";
  58 -                        };
  59 +                       bmp085: bmp085@77 {
  60 +                               compatible = "bosch,bmp085";
  61 +                               reg = <0x77>;
  62 +                               default-oversampling = <3>;
  63 +                               status = "disable";
  64 +                       };
  65
  66 -                        bmp280: bmp280@76 {
  67 -                                compatible = "bosch,bmp280";
  68 -                                reg = <0x76>;
  69 -                                status = "disable";
  70 -                        };
  71 -                };
  72 -        };
  73 +                       bmp280: bmp280@76 {
  74 +                               compatible = "bosch,bmp280";
  75 +                               reg = <0x76>;
  76 +                               status = "disable";
  77 +                       };
  78 +
  79 +                       si7020: si7020@40 {
  80 +                               compatible = "si7020";
  81 +                               reg = <0x40>;
  82 +                               status = "disable";
  83 +                       };
  84 +               };
  85 +       };
  86
  87         __overrides__ {
  88                 bmp085 = <&bmp085>,"status";
  89                 bmp280 = <&bmp280>,"status";
  90 +               si7020 = <&si7020>,"status";
  91         };
  92  };
  93 --
  94 2.1.4
  95