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