diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0691-overlays-mcp23017-rename-the-GPIO-pins-node-with-the.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0691-overlays-mcp23017-rename-the-GPIO-pins-node-with-the.patch | 37 |
1 files changed, 37 insertions, 0 deletions
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 index 0000000000..09dbf4a021 --- /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"; + }; + }; |