On Fri, May 5, 2023 at 6:38 PM Randolph Sapp via lists.openembedded.org <rs=ti.com@lists.openembedded.org> wrote:
From: Randolph Sapp <rs@ti.com>

Fedora/Redhat and Arch are somewhat standardized on their dtb directory
structure. Let's add some flags to configure yocto to mimic that
behavior.

Add the following variables to the kernel class:
        - KERNEL_DTBDEST (controls the destination directory for dtbs)
        - KERNEL_DTBVENDORED (controls if vendor subdirectories are to
          be respected)

Currently KERNEL_DTBDEST is expected to be a subdir of KERNEL_IMAGEDEST
and KERNEL_DTBVENDORED is expected to be "true"/"false". This only
applies to the package directory structure. The deploydir structure is
purposely left untouched for compatibility with existing recipes.

By default this is configured to behave the same as the current recipe
and produce a flat dtb directory at KERNEL_IMAGEDEST.

Signed-off-by: Randolph Sapp <rs@ti.com>
---

Well, suppose I was breaking things by submitting this to kirkstone
first. This is just the master version of the following patchset:
https://lists.openembedded.org/g/openembedded-core/message/180754

I'd love to get that series merged as well if this patch is acceptable.

 meta/classes-recipe/kernel-devicetree.bbclass | 22 ++++++++++++++-----
 meta/classes-recipe/kernel.bbclass            |  2 ++
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/meta/classes-recipe/kernel-devicetree.bbclass b/meta/classes-recipe/kernel-devicetree.bbclass
index 4d0ecb1032..a6c6c5f227 100644
--- a/meta/classes-recipe/kernel-devicetree.bbclass
+++ b/meta/classes-recipe/kernel-devicetree.bbclass
...
 
-               dtb_base_name=`basename $dtb .$dtb_ext`
                dtb_path=`get_real_dtb_path_in_kernel "$dtb"`
-               install -m 0644 $dtb_path ${D}/${KERNEL_IMAGEDEST}/$dtb_base_name.$dtb_ext
+               if [ ${KERNEL_DTBVENDORED} == "false" ]; then

dash doesn't like this:

 /bin/dash -c "if [ false == "false" ]; then echo foo; fi"

add quotes or use single '='.

+                       dtb_ext=${dtb##*.}
+                       dtb_base_name=`basename $dtb .$dtb_ext`
+                       dtb=$dtb_base_name.$dtb_ext
+               fi
+               install -Dm 0644 $dtb_path ${D}/${KERNEL_DTBDEST}/$dtb
        done
 }

@@ -88,7 +97,10 @@ do_deploy:append() {
                dtb_ext=${dtb##*.}
                dtb_base_name=`basename $dtb .$dtb_ext`
                install -d $deployDir
-               install -m 0644 ${D}/${KERNEL_IMAGEDEST}/$dtb_base_name.$dtb_ext $deployDir/$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext
+               if [ ${KERNEL_DTBVENDORED} == "false" ]; then

Same here
 
+                       dtb=$dtb_base_name.$dtb_ext
+               fi
+               install -m 0644 ${D}/${KERNEL_DTBDEST}/$dtb $deployDir/$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext
                if [ "${KERNEL_IMAGETYPE_SYMLINK}" = "1" ] ; then
                        ln -sf $dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext $deployDir/$dtb_base_name.$dtb_ext
                fi