[PATCH] arm: dts: allwinner: enable overlay support for sun8i-h2-plus pi boards

[Nisarg Rajput]

>From a0c7eaa6032748bb79953282a984064a922c916f Mon Sep 17 00:00:00 2001
From: ixnisarg <rajputnisarg17 at outlook.com>
Date: Sun, 3 May 2026 15:42:38 +0000
Subject: [PATCH] arm: dts: allwinner: enable overlay support for sun8i-h2-plus
 pi boards

Add DTC_FLAGS -@ for all H2+ pi-class devices to enable device-tree
overlay support. This follows the same approach used for H3 pi boards
in commit 0801a3a9f35854c91f1f3ab8e879c3d14912d214 ("arm: dts: Enable
device-tree overlay support for sun8i-h3 pi devices").

The -@ flag populates the __symbols__ node in the DTB which is required
for applying device-tree overlays from the bootloader or firmware.

Boards affected:
- sun8i-h2-plus-bananapi-m2-zero
- sun8i-h2-plus-libretech-all-h3-cc
- sun8i-h2-plus-orangepi-r1
- sun8i-h2-plus-orangepi-zero

Signed-off-by: ixnisarg <rajputnisarg17 at outlook.com>
---
 arch/arm/boot/dts/allwinner/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/allwinner/Makefile b/arch/arm/boot/dts/allwinner/Makefile
index 296be33ec934..2e0cc454df74 100644
--- a/arch/arm/boot/dts/allwinner/Makefile
+++ b/arch/arm/boot/dts/allwinner/Makefile
@@ -198,6 +198,12 @@ DTC_FLAGS_sun8i-h3-nanopi-r1 := -@
 DTC_FLAGS_sun8i-h3-orangepi-pc := -@
 DTC_FLAGS_sun8i-h3-bananapi-m2-plus-v1.2 := -@
 DTC_FLAGS_sun8i-h3-orangepi-pc-plus := -@
+
+# Enables support for device-tree overlays for H2+ pi boards
+DTC_FLAGS_sun8i-h2-plus-bananapi-m2-zero := -@
+DTC_FLAGS_sun8i-h2-plus-libretech-all-h3-cc := -@
+DTC_FLAGS_sun8i-h2-plus-orangepi-r1 := -@
+DTC_FLAGS_sun8i-h2-plus-orangepi-zero := -@
 dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-a23-evb.dtb \
 	sun8i-a23-gt90h-v4.dtb \
-- 
2.43.0



Thanks,
Nisarg...