linux-kernel - [PATCH] arm64: dts: mediatek: Makefile: Generate symbols for DTBO support

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Message-ID: <20240620101830.1097548-1-angelogioacchino.delregno@collabora.com>
Date: Thu, 20 Jun 2024 12:18:30 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: linux-mediatek@...ts.infradead.org
Cc: matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	kernel@...labora.com
Subject: [PATCH] arm64: dts: mediatek: Makefile: Generate symbols for DTBO support

Add DTC_FLAGS '-@' for mt7986a-bananapi-bpi-r3 and -mini to
instruct the devicetree compiler to enable generation of symbols.

This allows proper support for Device Tree Overlay(s) for those
boards; future boards that need DTBO support are expected to add
their own DTC_FLAGS_{dtb-name}.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 arch/arm64/boot/dts/mediatek/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 56d551da917e..5dbb695d053f 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -84,3 +84,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8390-genio-700-evk.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-kontron-3-5-sbc-i1200.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-radxa-nio-12l.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8516-pumpkin.dtb
+
+# Device tree overlays support
+DTC_FLAGS_mt7986a-bananapi-bpi-r3 := -@
+DTC_FLAGS_mt7986a-bananapi-bpi-r3-mini := -@
-- 
2.45.2