Add Linux DFL backport driver

conf/layer.conf

@@ -10,4 +10,4 @@ BBFILE_PATTERN_meta-ofs = "^${LAYERDIR}/"
 BBFILE_PRIORITY_meta-ofs = "6"
 
 LAYERDEPENDS_meta-ofs = "core"
-LAYERSERIES_COMPAT_meta-ofs = "kirkstone"
+LAYERSERIES_COMPAT_meta-ofs = "kirkstone nanbield"

recipes-kernel/intel-fpga-dfl-mod/intel-fpga-dfl-mod_git.bb

@@ -0,0 +1,24 @@
+SUMMARY = "Backport version of the linux-dfl (Device Feature List) kernel driver for FPGA devices"
+DESCRIPTION = "${SUMMARY}"
+LICENSE = "GPL-2.0-only"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=b234ee4d69f5fce4486a80fdaf4a4263"
+
+inherit module
+
+#SRC_URI = "git://github.com/OFS/linux-dfl-backport;protocol=https;branch=intel/fpga-ofs-dev-6.6-lts"
+SRC_URI = "git://github.com/OFS/linux-dfl-backport;protocol=https;branch=pcolberg/dfhv1"
+SRCREV = "${AUTOREV}"
+S = "${WORKDIR}/git"
+MODULES_INSTALL_TARGET = "install"
+EXTRA_OEMAKE += "KERNELDIR=${STAGING_KERNEL_DIR} KERNELBUILDDIR=${STAGING_KERNEL_BUILDDIR}"
+
+# Do not split modules into separate, per-module packages such as
+# kernel-module-fpga-bridge-6.1.55-altera, which will result in
+# build failure due to conflicting .packagedata file entries if
+# the kernel recipe builds the same module packages already.
+KERNEL_SPLIT_MODULES = "0"
+
+# The inherit of module.bbclass will automatically name module packages with
+# "kernel-module-" prefix as required by the oe-core build environment.
+
+RPROVIDES:${PN} += "kernel-module-intel-fpga-dfl"