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-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0365-overlays-dht11-Allow-multiple-instantiation.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0365-overlays-dht11-Allow-multiple-instantiation.patch b/target/linux/bcm27xx/patches-5.4/950-0365-overlays-dht11-Allow-multiple-instantiation.patch
new file mode 100644
index 0000000000..b75f1d4988
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0365-overlays-dht11-Allow-multiple-instantiation.patch
@@ -0,0 +1,34 @@
+From 5c1a2df946720816c155ff38b01bcd49a0f44f78 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 18 Dec 2019 10:41:33 +0000
+Subject: [PATCH] overlays: dht11: Allow multiple instantiation
+
+Add addresses to the dht11 and dht11_pins nodes to allow unique names
+to be generated by assigning to the "reg" property.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/dht11-overlay.dts | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/dht11-overlay.dts
++++ b/arch/arm/boot/dts/overlays/dht11-overlay.dts
+@@ -24,7 +24,7 @@
+ fragment@1 {
+ target = <&gpio>;
+ __overlay__ {
+- dht11_pins: dht11_pins {
++ dht11_pins: dht11_pins@0 {
+ brcm,pins = <4>;
+ brcm,function = <0>; // in
+ brcm,pull = <0>; // off
+@@ -34,6 +34,8 @@
+
+ __overrides__ {
+ gpiopin = <&dht11_pins>,"brcm,pins:0",
+- <&dht11>,"gpios:4";
++ <&dht11_pins>, "reg:0",
++ <&dht11>,"gpios:4",
++ <&dht11>,"reg:0";
+ };
+ };