target/linux/bcm27xx/patches-5.15/950-0670-overlays-Add-MAX30102-HR-to-i2c-sensor-overlay.patch

   1 From 2f995c2231e449016206dd2905b87846adc2b357 Mon Sep 17 00:00:00 2001
   2 From: coldspark29 <jan.claussen10@web.de>
   3 Date: Wed, 18 Aug 2021 13:41:04 +0200
   4 Subject: [PATCH] overlays: Add MAX30102 HR to i2c-sensor overlay
   5
   6 Add support for the MAX30102 heart rate and blood oxygen sensor to the
   7 i2c-sensor overlay.
   8
   9 See: https://github.com/raspberrypi/linux/pull/4535
  10
  11 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  12 ---
  13  arch/arm/boot/dts/overlays/README             |  6 ++++++
  14  .../boot/dts/overlays/i2c-sensor-overlay.dts  | 20 +++++++++++++++++++
  15  2 files changed, 26 insertions(+)
  16
  17 --- a/arch/arm/boot/dts/overlays/README
  18 +++ b/arch/arm/boot/dts/overlays/README
  19 @@ -1725,6 +1725,9 @@ Params: addr                    Set the
  20
  21          htu21                   Select the HTU21 temperature and humidity sensor
  22
  23 +        int_pin                 Set the GPIO to use for interrupts (max30102
  24 +                                only)
  25 +
  26          lm75                    Select the Maxim LM75 temperature sensor
  27                                  Valid addresses 0x48-0x4f, default 0x4f
  28
  29 @@ -1733,6 +1736,9 @@ Params: addr                    Set the
  30          max17040                Select the Maxim Integrated MAX17040 battery
  31                                  monitor
  32
  33 +        max30102                Select the Maxim Integrated MAX30102 heart-rate
  34 +                                and blood-oxygen sensor
  35 +
  36          sht3x                   Select the Sensiron SHT3x temperature and
  37                                  humidity sensor. Valid addresses 0x44-0x45,
  38                                  default 0x44
  39 --- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  40 +++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
  41 @@ -291,11 +291,30 @@
  42                 };
  43         };
  44
  45 +       fragment@19 {
  46 +               target = <&i2c_arm>;
  47 +               __dormant__ {
  48 +                       #address-cells = <1>;
  49 +                       #size-cells = <0>;
  50 +                       status = "okay";
  51 +
  52 +                       max30102: max30102@57 {
  53 +                               compatible = "maxim,max30102";
  54 +                               reg = <0x57>;
  55 +                               maxim,red-led-current-microamp = <7000>;
  56 +                               maxim,ir-led-current-microamp  = <7000>;
  57 +                               interrupt-parent = <&gpio>;
  58 +                               interrupts = <4 2>;
  59 +                       };
  60 +               };
  61 +       };
  62 +
  63         __overrides__ {
  64                 addr =  <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
  65                         <&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
  66                         <&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0",
  67                         <&bh1750>,"reg:0";
  68 +               int_pin = <&max30102>, "interrupts:0";
  69                 bme280 = <0>,"+0";
  70                 bmp085 = <0>,"+1";
  71                 bmp180 = <0>,"+2";
  72 @@ -316,5 +335,6 @@
  73                 sgp30 = <0>,"+16";
  74                 ccs811 = <0>, "+17";
  75                 bh1750 = <0>, "+18";
  76 +               max30102 = <0>,"+19";
  77         };
  78  };