[arm:cex7 151/154] ERROR: Input tree has errors, aborting (use -f to force output)

[arm:cex7 151/154] ERROR: Input tree has errors, aborting (use -f to force output)

[kernel test robot]

tree:   git://git.armlinux.org.uk/~rmk/linux-arm.git cex7
head:   ceb9c4a67bf5af34dd9e4809b3fc581562772f2a
commit: 6ed5eed0063857d895c002a4a0f6753ad30fd801 [151/154] arm64: dts: lx2160a: add optee support             [*experimental*]
config: arm64-randconfig-r035-20220415 (https://download.01.org/0day-ci/archive/20220416/202204160340.3VtMHUZ9-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6b7e6ea489f6dd45a9b0da9ac20871560917b9b0)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        git remote add arm git://git.armlinux.org.uk/~rmk/linux-arm.git
        git fetch --no-tags arm cex7
        git checkout 6ed5eed0063857d895c002a4a0f6753ad30fd801
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi:1765.11-1771.4: ERROR (duplicate_node_names): /firmware: Duplicate node name
>> ERROR: Input tree has errors, aborting (use -f to force output)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp