Adding custom overlays to Yocto image

Technical Support
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6

Hi @spasoye ,

Glad your problem was solved. Thank you for your help @John1 !

Your initial overlay looks mostly correct @spasoye . Apart from using % instead of * for the bbappend version you should put an override in TEZI_EXTERNAL_KERNEL_DEVICETREE_BOOT as @John1 did e.g.

TEZI_EXTERNAL_KERNEL_DEVICETREE_BOOT:colibri-imx8x

For reference, here’s how you can add overlays with mainline images (iMX6 and iMX7 SoMs):

device-tree-overlays-mainline_git.bbappend 
FILESEXTRAPATHS:prepend := "${THISDIR}/device-tree-overlays-mainline:"

CUSTOM_OVERLAYS_SOURCE = " \
    <custom_overlay1>.dts \
    <custom_overlay2>.dts \
"

CUSTOM_OVERLAYS_BINARY = " \
    <custom_overlay1>.dtbo \
    <custom_overlay2>.dtbo \
"

SRC_URI += " \
    file://<custom_overlay1>.dts \
    file://<custom_overlay2>.dts \
"

TEZI_EXTERNAL_KERNEL_DEVICETREE_BOOT:use-mainline-bsp += " \
    ${CUSTOM_OVERLAYS_BINARY} \
"

do_collect_overlays:prepend() {

    for DTS in ${CUSTOM_OVERLAYS_SOURCE}; do
        cp ${WORKDIR}/${DTS} ${S}
    done

}

Best regards,
Lucas Akira