$ ./out/target/product/project_name/obj/KERNEL_OBJ/scripts/dtc/dtc -I dtb -O dts -o decompiled.dts ~/project/linux_repo/out/target/product/project_name/obj/KERNEL_OBJ/arch/arm64/boot/dts/your.dtb

也就是

scripts/dtc/dtc -I dtb -O dts -o you_want.dts your.dtb

Usage: dtc [options] <input file>

• -I, --in-format <arg>
  Input formats are:
  dts - device tree source text
  dtb - device tree blob
  fs - /proc/device-tree style directory

• -O, --out-format <arg>
  Output formats are:
  dts - device tree source text
  dtb - device tree blob
  asm - assembler source

• -o, --out <arg>
  Output file

注意

一個是大寫 O
一個是小寫 o