[PATCH] arm64: dts: rockchip: Enable device-tree overlay support for select devices

[Chris Morgan]

From: Chris Morgan <macromorgan at hotmail.com>

Add the '-@' DTC option for the Rock 5B and Indiedroid Nova devices.
These two devices are relatively new both with external GPIO headers
for expansion. This does impact the filesize of the DTB substantially.

rk3588-rock-5b.dtb		75352 -> 150094 bytes
rk3588s-indiedroid-nova.dtb	69507 -> 136739 bytes

Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index f906a868b71a..26f306db0aea 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -1,4 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
+
+# Enable support for external device-tree overlays
+DTC_FLAGS_rk3588-rock-5b			:= -@
+DTC_FLAGS_rk3588s-indiedroid-nova		:= -@
+
 dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-evb.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-engicam-px30-core-ctouch2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-engicam-px30-core-ctouch2-of10.dtb
-- 
2.34.1