ifeq ($(TARGET_KERNEL_DIR),)
TARGET_KERNEL_DIR := $(srctree)
endif
# drv/base and drv/gpu init function called by late_initcall
# drv/gpu depends on drv/osal
driver_link_level := \
    $(TARGET_KERNEL_DIR)/drivers/drv/base \
    $(TARGET_KERNEL_DIR)/drivers/drv/gpu \

# level 0
driver_link_level += \
    $(TARGET_KERNEL_DIR)/drivers/drv/osal \

# level 1
driver_link_level += \
    $(TARGET_KERNEL_DIR)/drivers/drv/dftevent \
    $(TARGET_KERNEL_DIR)/drivers/drv/common \

# level 2
driver_link_level += \
    $(TARGET_KERNEL_DIR)/drivers/drv/dmcu \
    $(TARGET_KERNEL_DIR)/drivers/drv/custom \
    $(TARGET_KERNEL_DIR)/drivers/drv/token \
    $(TARGET_KERNEL_DIR)/drivers/drv/ssm \
    $(TARGET_KERNEL_DIR)/drivers/drv/gpio \
    $(TARGET_KERNEL_DIR)/drivers/drv/i2c/gpio_i2c \
    $(TARGET_KERNEL_DIR)/drivers/drv/ir \
    $(TARGET_KERNEL_DIR)/drivers/drv/pdm \
    $(TARGET_KERNEL_DIR)/drivers/drv/asr \
    $(TARGET_KERNEL_DIR)/drivers/drv/pq \
    $(TARGET_KERNEL_DIR)/drivers/drv/panel \
    $(TARGET_KERNEL_DIR)/drivers/drv/vpss \
    $(TARGET_KERNEL_DIR)/drivers/drv/keyslot \
    $(TARGET_KERNEL_DIR)/drivers/drv/cipher \
    $(TARGET_KERNEL_DIR)/drivers/drv/otp \
    $(TARGET_KERNEL_DIR)/drivers/drv/klad \
    $(TARGET_KERNEL_DIR)/drivers/drv/hdmitx \
    $(TARGET_KERNEL_DIR)/drivers/drv/hdmirx \
    $(TARGET_KERNEL_DIR)/drivers/drv/hddec \
    $(TARGET_KERNEL_DIR)/drivers/drv/vfe \
    $(TARGET_KERNEL_DIR)/drivers/drv/tvd \
    $(TARGET_KERNEL_DIR)/drivers/drv/aiao \
    $(TARGET_KERNEL_DIR)/drivers/drv/aflt \
    $(TARGET_KERNEL_DIR)/drivers/drv/memc \
    $(TARGET_KERNEL_DIR)/drivers/drv/vo \
    $(TARGET_KERNEL_DIR)/drivers/drv/rm \
    $(TARGET_KERNEL_DIR)/drivers/drv/gfx2d \
    $(TARGET_KERNEL_DIR)/drivers/drv/tde \
    $(TARGET_KERNEL_DIR)/drivers/drv/jpgd \
    $(TARGET_KERNEL_DIR)/drivers/drv/gfbg \
    $(TARGET_KERNEL_DIR)/drivers/drv/i2c/std_i2c \
    $(TARGET_KERNEL_DIR)/drivers/drv/jpge \
    $(TARGET_KERNEL_DIR)/drivers/drv/spi \
    $(TARGET_KERNEL_DIR)/drivers/drv/frontend \
    $(TARGET_KERNEL_DIR)/drivers/drv/demux \
    $(TARGET_KERNEL_DIR)/drivers/drv/ivp \
    $(TARGET_KERNEL_DIR)/drivers/drv/tsio \
    $(TARGET_KERNEL_DIR)/drivers/drv/tsr2rcipher \
    $(TARGET_KERNEL_DIR)/drivers/drv/pwm \
    $(TARGET_KERNEL_DIR)/drivers/drv/pvr \
    $(TARGET_KERNEL_DIR)/drivers/drv/sync \
    $(TARGET_KERNEL_DIR)/drivers/drv/avplay \
    $(TARGET_KERNEL_DIR)/drivers/drv/adsp \
    $(TARGET_KERNEL_DIR)/drivers/drv/sif \
    $(TARGET_KERNEL_DIR)/drivers/drv/adec \
    $(TARGET_KERNEL_DIR)/drivers/drv/vfmw \
    $(TARGET_KERNEL_DIR)/drivers/drv/vdec \
    $(TARGET_KERNEL_DIR)/drivers/drv/amp \
    $(TARGET_KERNEL_DIR)/drivers/drv/sci \
    $(TARGET_KERNEL_DIR)/drivers/drv/omxvdec \
    $(TARGET_KERNEL_DIR)/drivers/drv/aenc \
    $(TARGET_KERNEL_DIR)/drivers/drv/venc \
    $(TARGET_KERNEL_DIR)/drivers/drv/vi \
    $(TARGET_KERNEL_DIR)/drivers/drv/pmoc \
    $(TARGET_KERNEL_DIR)/drivers/drv/dvfs \
    $(TARGET_KERNEL_DIR)/drivers/drv/lsadc \
    $(TARGET_KERNEL_DIR)/drivers/drv/spread \
    $(TARGET_KERNEL_DIR)/drivers/drv/ci \
    $(TARGET_KERNEL_DIR)/drivers/drv/vbi \
    $(TARGET_KERNEL_DIR)/drivers/drv/npu \