brcm2708: update to latest patches from RPi Foundation

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0691-overlays-mcp23017-rename-the-GPIO-pins-node-with-the.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0691-overlays-mcp23017-rename-the-GPIO-pins-node-with-the.patch b/target/linux/brcm2708/patches-4.19/950-0691-overlays-mcp23017-rename-the-GPIO-pins-node-with-the.patch
new file mode 100644 (file)
index 0000000..09dbf4a
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0691-overlays-mcp23017-rename-the-GPIO-pins-node-with-the.patch
@@ -0,0 +1,37 @@
+From 9802671acf4250d6541d175ba599da03cee8acc1 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 5 Sep 2019 17:36:38 +0100
+Subject: [PATCH] overlays: mcp23017: rename the GPIO pins node with
+ the device
+
+In order to allow the overlay to be loaded multiple times the
+GPIO node for the interrupt line needs to be unique.
+Rename it based on the MCP23017 I2C address
+
+https://github.com/raspberrypi/linux/issues/3207
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/mcp23017-overlay.dts | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/mcp23017-overlay.dts
++++ b/arch/arm/boot/dts/overlays/mcp23017-overlay.dts
+@@ -16,7 +16,7 @@
+       fragment@1 {
+               target = <&gpio>;
+               __overlay__ {
+-                      mcp23017_pins: mcp23017_pins {
++                      mcp23017_pins: mcp23017_pins@20 {
+                               brcm,pins = <4>;
+                               brcm,function = <0>;
+                       };
+@@ -55,7 +55,7 @@
+       __overrides__ {
+               gpiopin = <&mcp23017_pins>,"brcm,pins:0",
+                               <&mcp23017>,"interrupts:0";
+-              addr = <&mcp23017>,"reg:0";
++              addr = <&mcp23017>,"reg:0", <&mcp23017_pins>,"reg:0";
+               mcp23008 = <0>,"=3";
+       };
+ };