Adding Custom DeviceTree Overlay

Technical Support
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5

Hello @erdemkahraman,

I could build the dts files that you provided successfully for colibri-imx6 machine for BSP 5.7.2.

Here is the structure of my custom layer:

rudhi@nb:~/Yocto/ref_image_bsp5/oe-core/layers/meta-customer$ tree
.
├── conf
│   └── layer.conf
├── COPYING.MIT
├── README      
└── recipes-kernel
    └── linux
        ├── device-tree-overlays
        │   └── colibri-imx6_gpio-keys_overlay.dts
        ├── device-tree-overlays_%.bbappend

Here is the device-tree-overlays_%.bbappend file:

 FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"

SRC_URI += "\
    file://colibri-imx6_gpio-keys_overlay.dts \
"

TEZI_EXTERNAL_KERNEL_DEVICETREE += "\
    colibri-imx6_gpio-keys_overlay.dtbo \
"

TEZI_EXTERNAL_KERNEL_DEVICETREE_BOOT = "\
    colibri-imx6_gpio-keys_overlay.dtbo \
"

do_collect_overlays:prepend() {
    cp ${WORKDIR}/colibri-imx6_gpio-keys_overlay.dts ${S}
}

After this, execute the bitbake command to build compile the overlays:
MACHINE=colibri-imx6 bitbake device-tree-overlays

I could find the output dtbo file here: build/deploy/images/colibri-imx6/overlays/colibri-imx6_gpio-keys_overlay.dtbo