arm64: dts: rockchip: add overlay test for WolfVision PF5

The WolfVision PF5 can have a PF5 Visualizer display and PF5 IO Expander
board connected to it. Therefore, let's generate an overlay test so the
application of the two overlays are validated against the base DTB.

Suggested-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://lore.kernel.org/r/20250211-pre-ict-jaguar-v6-1-4484b0f88cfc@cherry.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 57c5c013cc0893163f19e702b83879f8120aad06..95139430f9c40f971911a4ae69c0f41e2e063140 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -171,3 +171,25 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-orangepi-5.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-orangepi-5b.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-rock-5a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-rock-5c.dtb
+
+# Overlay application tests
+#
+# A .dtbo must have its own
+#
+#  dtb-$(CONFIG_ARCH_ROCKCHIP) += <overlay>.dtbo
+#
+# entry, and at least one overlay application test reflecting a possible
+# hardware combination in real life:
+#
+#  dtb-$(CONFIG_ARCH_ROCKCHIP) += <overlay-application-test>.dtb
+#  <overlay-application-test>-dtbs := <base>.dtb <overlay-1>.dtbo [<overlay-2>.dtbo ...]
+#
+# This will make the <base>.dtb have symbols (like when DTC_FLAGS has -@ passed)
+# and generate a new DTB (<overlay-application-test>.dtb) which is the
+# result of the application of <overlay-1>.dtbo and other listed overlays on top
+# of <base>.dtb.
+
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-vz-2-uhd.dtb
+rk3568-wolfvision-pf5-vz-2-uhd-dtbs := rk3568-wolfvision-pf5.dtb \
+       rk3568-wolfvision-pf5-display-vz.dtbo \
+       rk3568-wolfvision-pf5-io-expander.dtbo