From: Dag Bakke <dag@bakke.com>
Date: Mon, 30 May 2022 09:57:06 +0000 (+0200)
Subject: overlays: dht11: make sensor readable via hwmon
X-Git-Tag: accepted/tizen/unified/20230118.172025~561
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=45599fd8fe420ede67b0a28767a335d1d203f9cf;p=platform%2Fkernel%2Flinux-rpi.git

overlays: dht11: make sensor readable via hwmon

Add a patch to make the sensor readable via the IIO/hwmon bridge.

Signed-off-by: Dag Bakke <dag@bakke.com>
---

diff --git a/arch/arm/boot/dts/overlays/dht11-overlay.dts b/arch/arm/boot/dts/overlays/dht11-overlay.dts
index 6feeeb4..8b0fc6b 100644
--- a/arch/arm/boot/dts/overlays/dht11-overlay.dts
+++ b/arch/arm/boot/dts/overlays/dht11-overlay.dts
@@ -10,13 +10,19 @@
 	fragment@0 {
 		target-path = "/";
 		__overlay__ {
-
-			dht11: dht11@0 {
+			dht11: dht11@4 {
 				compatible = "dht11";
 				pinctrl-names = "default";
 				pinctrl-0 = <&dht11_pins>;
 				gpios = <&gpio 4 0>;
 				status = "okay";
+				#io-channel-cells = <1>;
+			};
+
+			iio: iio-hwmon@4 {
+				compatible = "iio-hwmon";
+				status = "okay";
+				io-channels = <&dht11 0>, <&dht11 1>;
 			};
 		};
 	};
@@ -24,7 +30,7 @@
 	fragment@1 {
 		target = <&gpio>;
 		__overlay__ {
-			dht11_pins: dht11_pins@0 {
+			dht11_pins: dht11_pins@4 {
 				brcm,pins = <4>;
 				brcm,function = <0>; // in
 				brcm,pull = <0>; // off
@@ -36,6 +42,7 @@
 		gpiopin = <&dht11_pins>,"brcm,pins:0",
 			<&dht11_pins>, "reg:0",
 			<&dht11>,"gpios:4",
-			<&dht11>,"reg:0";
+			<&dht11>,"reg:0",
+			<&iio>,"reg:0";
 	};
 };