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From 4fdc12dae89db7fd02bfbef1a15a0b78263a7764 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Tue, 1 Nov 2022 08:47:21 +0000
Subject: [PATCH] overlays: i2c-sensor: Add mcp980x support
See: https://github.com/raspberrypi/linux/issues/5234
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/overlays/README | 4 ++++
.../boot/dts/overlays/i2c-sensor-common.dtsi | 17 ++++++++++++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1981,6 +1981,10 @@ Params: addr Set the
max30102 Select the Maxim Integrated MAX30102 heart-rate
and blood-oxygen sensor
+ mcp980x Select the Maxim MCP980x range of temperature
+ sensors (e.g. MCP9808).
+ Valid addresses are 0x18-0x1f (default 0x18)
+
sht3x Select the Sensiron SHT3x temperature and
humidity sensor. Valid addresses 0x44-0x45,
default 0x44
--- a/arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi
+++ b/arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi
@@ -323,6 +323,20 @@
};
};
+ fragment@21 {
+ target = <&i2cbus>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ mcp980x: mcp980x@18 {
+ compatible = "maxim,mcp980x";
+ reg = <0x18>;
+ };
+ };
+ };
+
__overrides__ {
bme280 = <0>,"+0";
bmp085 = <0>,"+1";
@@ -346,11 +360,12 @@
bh1750 = <0>, "+18";
max30102 = <0>,"+19";
aht10 = <0>,"+20";
+ mcp980x = <0>,"+21";
addr = <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
<&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0",
- <&bh1750>,"reg:0";
+ <&bh1750>,"reg:0", <&mcp980x>,"reg:0";
int_pin = <&max30102>, "interrupts:0";
};
};
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