arm64: dts: rockchip: add overlay tests for Rock 5B PCIe overlays

According to commit 40658534756f ("arm64: dts: rockchip: Add rock5b
overlays for PCIe endpoint mode"), Rock 5B can operate in PCIe endpoint
mode. For that to work, the rk3588-rock-5b-pcie-ep.dtbo overlay needs to
be applied on Rock 5B base Device Tree. If that Rock 5B is connected to
another Rock 5B, the latter needs to apply the
rk3588-rock-5b-pcie-srns.dtbo overlay.

In order to make sure the overlays are still valid in the future, let's
add a validation test by applying the overlays on top of the main base
at build time.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
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-v6-3-4484b0f88cfc@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 c4c5ce62bda0c64c9834e367a0281718ac37648b..ff205991633ea880fd655ae29e133c73cb21dca4 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -201,3 +201,11 @@ rk3588-edgeble-neu6a-wifi-dtbs := rk3588-edgeble-neu6a-io.dtb \
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-edgeble-neu6b-wifi.dtb
 rk3588-edgeble-neu6b-wifi-dtbs := rk3588-edgeble-neu6b-io.dtb \
        rk3588-edgeble-neu6a-wifi.dtbo
+
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-pcie-ep.dtb
+rk3588-rock-5b-pcie-ep-dtbs := rk3588-rock-5b.dtb \
+       rk3588-rock-5b-pcie-ep.dtbo
+
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-pcie-srns.dtb
+rk3588-rock-5b-pcie-srns-dtbs := rk3588-rock-5b.dtb \
+       rk3588-rock-5b-pcie-srns.dtbo