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79 lines
2.5 KiB
Diff
79 lines
2.5 KiB
Diff
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From 2f995c2231e449016206dd2905b87846adc2b357 Mon Sep 17 00:00:00 2001
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From: coldspark29 <jan.claussen10@web.de>
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Date: Wed, 18 Aug 2021 13:41:04 +0200
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Subject: [PATCH] overlays: Add MAX30102 HR to i2c-sensor overlay
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Add support for the MAX30102 heart rate and blood oxygen sensor to the
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i2c-sensor overlay.
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See: https://github.com/raspberrypi/linux/pull/4535
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/README | 6 ++++++
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.../boot/dts/overlays/i2c-sensor-overlay.dts | 20 +++++++++++++++++++
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2 files changed, 26 insertions(+)
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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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@@ -1725,6 +1725,9 @@ Params: addr Set the
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htu21 Select the HTU21 temperature and humidity sensor
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+ int_pin Set the GPIO to use for interrupts (max30102
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+ only)
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+
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lm75 Select the Maxim LM75 temperature sensor
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Valid addresses 0x48-0x4f, default 0x4f
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@@ -1733,6 +1736,9 @@ Params: addr Set the
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max17040 Select the Maxim Integrated MAX17040 battery
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monitor
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+ max30102 Select the Maxim Integrated MAX30102 heart-rate
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+ and blood-oxygen sensor
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+
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sht3x Select the Sensiron SHT3x temperature and
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humidity sensor. Valid addresses 0x44-0x45,
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default 0x44
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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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@@ -291,11 +291,30 @@
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};
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};
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+ fragment@19 {
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+ target = <&i2c_arm>;
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+ __dormant__ {
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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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+ max30102: max30102@57 {
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+ compatible = "maxim,max30102";
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+ reg = <0x57>;
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+ maxim,red-led-current-microamp = <7000>;
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+ maxim,ir-led-current-microamp = <7000>;
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+ interrupt-parent = <&gpio>;
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+ interrupts = <4 2>;
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+ };
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+ };
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+ };
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+
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__overrides__ {
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addr = <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
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<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
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<&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0",
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<&bh1750>,"reg:0";
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+ int_pin = <&max30102>, "interrupts:0";
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bme280 = <0>,"+0";
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bmp085 = <0>,"+1";
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bmp180 = <0>,"+2";
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@@ -316,5 +335,6 @@
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sgp30 = <0>,"+16";
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ccs811 = <0>, "+17";
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bh1750 = <0>, "+18";
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+ max30102 = <0>,"+19";
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};
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};
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