rockchip-rk3588 collabora: new branch (by @lanefu)

- `bsdextrautils` for kernel 6.4 (only if collabora branch)
- kernel 6.4 major, but skip rtw88 driver patching

config/boards/rock-5b.conf

@@ -3,7 +3,7 @@ BOARD_NAME="Rock 5B"
 BOARDFAMILY="rockchip-rk3588"
 BOARD_MAINTAINER="amazingfate linhz0hz"
 BOOTCONFIG="rock-5b-rk3588_defconfig"
-KERNEL_TARGET="legacy,edge,midstream"
+KERNEL_TARGET="legacy,edge,midstream,collabora"
 FULL_DESKTOP="yes"
 BOOT_LOGO="desktop"
 BOOT_FDT_FILE="rockchip/rk3588-rock-5b.dtb"

config/sources/families/rockchip-rk3588.conf

@@ -50,10 +50,27 @@ case $BRANCH in
 		KERNEL_DRIVERS_SKIP+=(driver_rtw88) # This is a 6.2-rcX kernel, while the rtw88 driver patching expects 6.2.0+
 		;;
 
+	collabora)
+		# Collabora's rk3588, where the action is these days
+		SKIP_BOOTSPLASH="yes"
+		LINUXFAMILY=rockchip-rk3588
+		LINUXCONFIG='linux-rockchip-rk3588-'$BRANCH
+		KERNEL_MAJOR_MINOR="6.4"                   # Major and minor versions of this kernel.
+		KERNELPATCHDIR='rockchip-rk3588-collabora' # Empty/nonexisting, so zero patches, hopefully
+		KERNELSOURCE='https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux.git'
+		KERNELBRANCH='branch:rk3588'
+		KERNEL_DRIVERS_SKIP+=(driver_rtw88) # This is a custom kernel, while the rtw88 driver patching expects pure mainline
+		;;
 esac
 
 prepare_boot_configuration
 
+function add_host_dependencies__collabora_kernel() {
+	[[ "${BRANCH}" != "collabora" ]] && return 0
+	display_alert "Extra deps for collabora kernels" "bsdextrautils" "debug"
+	export EXTRA_BUILD_DEPS="${EXTRA_BUILD_DEPS} bsdextrautils" # @TODO: convert to array later
+}
+
 family_tweaks_bsp() {
 	:
 }

lib/functions/general/git-ref2info.sh

@@ -113,7 +113,7 @@ function memoized_git_ref_to_info() {
 					esac
 					;;
 
-				"https://gitlab.com/"* | "https://source.denx.de/"*)
+				"https://gitlab.com/"* | "https://source.denx.de/"* | "https://gitlab.collabora.com/"*)
 					# GitLab is more complex than GitHub, there can be more levels.
 					# This code is incomplete... but it works for now.
 					# Example: input:  https://gitlab.com/rk3588_linux/rk/kernel.git