bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0379-overlays-dht11-Allow-multiple-instantiation.patch b/target/linux/bcm27xx/patches-5.4/950-0379-overlays-dht11-Allow-multiple-instantiation.patch
new file mode 100644
index 0000000000..b75f1d4988
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0379-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";
+ 	};
+ };