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 --- a/arch/arm/boot/dts/overlays/README
  13 +++ b/arch/arm/boot/dts/overlays/README
  14 @@ -543,6 +543,9 @@ Params: bmp085                  Select t
  15
  16          bmp280                  Select the Bosch sensortronic BMP280
  17
  18 +        si7020                  Select the Silicon Labs Si7013/20/21 humidity/
  19 +                                temperature sensor
  20 +
  21
  22  Name:   i2c0-bcm2708
  23  Info:   Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
  24 --- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  25 +++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  26 @@ -1,34 +1,41 @@
  27 -// Definitions for a few digital barometric pressure and temperature sensors
  28 +// Definitions for I2C based sensors using the Industrial IO interface.
  29  /dts-v1/;
  30  /plugin/;
  31
  32  / {
  33 -        compatible = "brcm,bcm2708";
  34 +       compatible = "brcm,bcm2708";
  35
  36 -        fragment@0 {
  37 -                target = <&i2c_arm>;
  38 -                __overlay__ {
  39 -                        #address-cells = <1>;
  40 -                        #size-cells = <0>;
  41 -                        status = "okay";
  42 -
  43 -                        bmp085: bmp085@77 {
  44 -                                compatible = "bosch,bmp085";
  45 -                                reg = <0x77>;
  46 -                                default-oversampling = <3>;
  47 -                                status = "disable";
  48 -                        };
  49 -
  50 -                        bmp280: bmp280@76 {
  51 -                                compatible = "bosch,bmp280";
  52 -                                reg = <0x76>;
  53 -                                status = "disable";
  54 -                        };
  55 -                };
  56 -        };
  57 +       fragment@0 {
  58 +               target = <&i2c_arm>;
  59 +               __overlay__ {
  60 +                       #address-cells = <1>;
  61 +                       #size-cells = <0>;
  62 +                       status = "okay";
  63 +
  64 +                       bmp085: bmp085@77 {
  65 +                               compatible = "bosch,bmp085";
  66 +                               reg = <0x77>;
  67 +                               default-oversampling = <3>;
  68 +                               status = "disable";
  69 +                       };
  70 +
  71 +                       bmp280: bmp280@76 {
  72 +                               compatible = "bosch,bmp280";
  73 +                               reg = <0x76>;
  74 +                               status = "disable";
  75 +                       };
  76 +
  77 +                       si7020: si7020@40 {
  78 +                               compatible = "si7020";
  79 +                               reg = <0x40>;
  80 +                               status = "disable";
  81 +                       };
  82 +               };
  83 +       };
  84
  85         __overrides__ {
  86                 bmp085 = <&bmp085>,"status";
  87                 bmp280 = <&bmp280>,"status";
  88 +               si7020 = <&si7020>,"status";
  89         };
  90  };