linux-kernel - [PATCH 07/10] arm64: dts: imx8mp-sr-som: build dtbs with symbols for overlay support

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Message-Id: <20251027-imx8mp-hb-iiot-v1-7-683f86357818@solid-run.com>
Date: Mon, 27 Oct 2025 18:48:16 +0100
From: Josua Mayer <josua@...id-run.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Jessica Zhang <jessica.zhang@....qualcomm.com>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Dmitry Torokhov <dmitry.torokhov@...il.com>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Cc: Jon Nettleton <jon@...id-run.com>,
 Mikhail Anikin <mikhail.anikin@...id-run.com>,
 Yazan Shhady <yazan.shhady@...id-run.com>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 linux-input@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, Josua Mayer <josua@...id-run.com>
Subject: [PATCH 07/10] arm64: dts: imx8mp-sr-som: build dtbs with symbols
 for overlay support

Build all dtbs based on SolidRun i.MX8MP SoM with symbols (adding -@ to
dtc flags) to enable support for device-tree addons.

The SoM has a camera connector for basler cameras that can be enabled by
downstream dtbo.
Hence by extension all boards based on this SoM should support addons.

Signed-off-by: Josua Mayer <josua@...id-run.com>
---
 arch/arm64/boot/dts/freescale/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 525ef180481d3..8bda6fb0ff9c1 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -197,6 +197,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-aristainetos3-helios-lvds.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-aristainetos3-proton2s.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-beacon-kit.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-cubox-m.dtb
+DTC_FLAGS_imx8mp-cubox-m := -@
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-data-modul-edm-sbc.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-model-a.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-som-a-bmb-08.dtb
@@ -207,9 +208,13 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-picoitx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-edm-g-wb.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-mate.dtb
+DTC_FLAGS_imx8mp-hummingboard-mate := -@
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-pro.dtb
+DTC_FLAGS_imx8mp-hummingboard-pro := -@
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-pulse.dtb
+DTC_FLAGS_imx8mp-hummingboard-pulse := -@
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-ripple.dtb
+DTC_FLAGS_imx8mp-hummingboard-ripple := -@
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-icore-mx8mp-edimm2.2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-iota2-lumpy.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-bl-osm-s.dtb

-- 
2.51.0