fix: move the kernel version judgment to rk3588-can.mak

arch/arm64/boot/dts/rockchip/overlays/Makefile

@@ -18,13 +18,10 @@ ifeq ($(strip $(CONFIG_CPU_RK3588)), y)
 	CONFIG_CLK_RK3588 ?= y
 endif
 
-# 防止 make deb 打包时运行
+# Prevent make deb from running when packaging
 ifeq ($(strip $(CONFIG_CLK_RK3588)), y)
-	# 判断内核版本为 bsp 6.1 时不编译 can 相关 overlays
-	ifeq ($(shell echo $(KERNELRELEASE) | grep -q '6\.1\..*-rk2312' && echo 1 || echo 0),0)
-		$(info include $(src)/rk3588-can.mak)
-		include $(src)/rk3588-can.mak
-	endif
+	$(info include $(src)/rk3588-can.mak)
+	include $(src)/rk3588-can.mak
 endif
 
 dtb-$(CONFIG_CLK_RK3308) += \

arch/arm64/boot/dts/rockchip/overlays/rk3588-can.mak

@@ -1,11 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 
-dtb-$(CONFIG_CPU_RK3588) += \
-	rk3588-can1-m0.dtbo \
-	rk3588-can1-m1.dtbo \
-	rk3588-can2-m1.dtbo
 
-targets += $(dtb-y)
-
-always-y		:= $(dtb-y)
-clean-files		:= *.dtbo *.scr
+# Can-related overlays are not compiled when kernel version is bsp 6.1.
+ifeq ($(shell echo $(KERNELRELEASE) | grep -q '6\.1\..*-rk2312' && echo 1 || echo 0),0)
+	dtb-$(CONFIG_CPU_RK3588) += \
+		rk3588-can1-m0.dtbo \
+		rk3588-can1-m1.dtbo \
+		rk3588-can2-m1.dtbo
+endif