openwrtv3/target/linux/brcm2708/patches-4.4/0383-BCM270X_DT-Make-i2c-gpio-usable-by-other-overlays.patch

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From 5e5cb8f76037673c14925324606738587f65427c Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Mon, 6 Jun 2016 09:23:37 +0100
Subject: [PATCH] BCM270X_DT: Make i2c-gpio usable by other overlays
Modify the i2c-gpio overlay to export symbol i2c-gpio for use by other
overlays. Export the alias as well for good measure.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 15 +++++++++++++++
1 file changed, 15 insertions(+)
--- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
@@ -19,6 +19,21 @@
};
};
};
+
+ fragment@1 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c_gpio = "/i2c@0";
+ };
+ };
+
+ fragment@2 {
+ target-path = "/__symbols__";
+ __overlay__ {
+ i2c_gpio = "/i2c@0";
+ };
+ };
+
__overrides__ {
i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
i2c_gpio_scl = <&i2c_gpio>,"gpios:16";