OpenWrt – Rev 1
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From 3c258618cbc0cddb7076b61a08755aa4f73d27db Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Sun, 15 Apr 2018 10:36:15 +0100
Subject: [PATCH 274/454] overlays: Add ds1621 to the i2c-sensor overlay
The ds1621 enables the Dallas Semiconductors DS1621 temperature
sensor.
See: https://github.com/raspberrypi/linux/issues/2509
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/README | 15 +++++++++------
.../boot/dts/overlays/i2c-sensor-overlay.dts | 19 ++++++++++++++++++-
2 files changed, 27 insertions(+), 7 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -821,8 +821,8 @@ Name: i2c-sensor
Info: Adds support for a number of I2C barometric pressure and temperature
sensors on i2c_arm
Load: dtoverlay=i2c-sensor,<param>=<val>
-Params: addr Set the address for the BME280, BMP280, TMP102,
- HDC100X, LM75 or SHT3x
+Params: addr Set the address for the BME280, BMP280, DS1621,
+ HDC100X, LM75, SHT3x or TMP102
bme280 Select the Bosch Sensortronic BME280
Valid addresses 0x76-0x77, default 0x76
@@ -834,6 +834,9 @@ Params: addr Set the
bmp280 Select the Bosch Sensortronic BMP280
Valid addresses 0x76-0x77, default 0x76
+ ds1621 Select the Dallas Semiconductors DS1621 temp
+ sensor. Valid addresses 0x48-9x4f, default 0x48
+
hdc100x Select the Texas Instruments HDC100x temp sensor
Valid addresses 0x40-0x43, default 0x40
@@ -844,6 +847,10 @@ Params: addr Set the
lm75addr Deprecated - use addr parameter instead
+ sht3x Select the Sensiron SHT3x temperature and
+ humidity sensor. Valid addresses 0x44-0x45,
+ default 0x44
+
si7020 Select the Silicon Labs Si7013/20/21 humidity/
temperature sensor
@@ -856,10 +863,6 @@ Params: addr Set the
veml6070 Select the Vishay VEML6070 ultraviolet light
sensor
- sht3x Select the Sensiron SHT3x temperature and
- humidity sensor. Valid addresses 0x44-0x45,
- default 0x44
-
Name: i2c0-bcm2708
Info: Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
@@ -186,9 +186,25 @@
};
};
+ fragment@12 {
+ target = <&i2c_arm>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ ds1621: ds1621@48 {
+ compatible = "ds1621";
+ reg = <0x48>;
+ status = "okay";
+ };
+ };
+ };
+
__overrides__ {
addr = <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
- <&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0";
+ <&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
+ <&ds1621>,"reg:0";
bme280 = <0>,"+0";
bmp085 = <0>,"+1";
bmp180 = <0>,"+2";
@@ -202,5 +218,6 @@
tsl4531 = <0>,"+9";
veml6070 = <0>,"+10";
sht3x = <0>,"+11";
+ ds1621 = <0>,"+12";
};
};