Upstream-Status: Pending [Not submitted to upstream yet]
Signed-off-by: Arpita S.K <arpita.s.k@arm.com>

From 8a7bea4e7d08395036ffc2fde57c4fb44315e181 Mon Sep 17 00:00:00 2001
From: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Date: Mon, 25 Oct 2021 13:12:11 +0100
Subject: [PATCH 1/2] build: add Yocto support

This commit allows to build the driver under Yocto

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
---
 Kbuild   |  4 ----
 Makefile | 40 +++++++++++-----------------------------
 2 files changed, 11 insertions(+), 33 deletions(-)
 delete mode 100644 Kbuild

diff --git a/Kbuild b/Kbuild
deleted file mode 100644
index 330b019..0000000
--- a/Kbuild
+++ /dev/null
@@ -1,4 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-
-arm-ffa-user-objs := arm_ffa_user.o
-obj-m := arm-ffa-user.o
diff --git a/Makefile b/Makefile
index 62dbfb1..90dfaef 100644
--- a/Makefile
+++ b/Makefile
@@ -1,33 +1,15 @@
-# SPDX-License-Identifier: GPL-2.0-only
+arm-ffa-user-objs := arm_ffa_user.o
+obj-m := arm-ffa-user.o
 
-ARCH			:= arm64
-CROSS_COMPILE		?= aarch64-linux-gnu-
+SRC := $(shell pwd)
 
-ROOT			?= $(CURDIR)/..
-KDIR			?= $(ROOT)/linux
-TARGET_DIR		?= $(ROOT)/shared
-BUILD_DIR		?= $(CURDIR)/build
-BUILD_DIR_MAKEFILE 	?= $(BUILD_DIR)/Makefile
+all:
+	$(MAKE) -C $(KERNEL_SRC) M=$(SRC)
 
-all: module
+modules_install:
+	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
 
-clean: module-clean
-
-install: all
-	cp $(BUILD_DIR)/arm-ffa-user.ko $(TARGET_DIR)/
-	cp load_module.sh $(TARGET_DIR)/
-
-module: $(BUILD_DIR_MAKEFILE)
-	$(MAKE) -C $(KDIR) M=$(BUILD_DIR) src=$(CURDIR) modules \
-		ARCH=$(ARCH) CROSS_COMPILE="$(CROSS_COMPILE)"
-
-module-clean:
-	$(MAKE) -C $(KDIR) M=$(BUILD_DIR) src=$(CURDIR) clean \
-		ARCH=$(ARCH) CROSS_COMPILE="$(CROSS_COMPILE)"
-	rm $(BUILD_DIR_MAKEFILE)
-
-$(BUILD_DIR):
-	mkdir -p "$@"
-
-$(BUILD_DIR_MAKEFILE): $(BUILD_DIR)
-	touch "$@"
+clean:
+	rm -f *.o *~ core .depend .*.cmd *.ko *.mod.c
+	rm -f Module.markers Module.symvers modules.order
+	rm -rf .tmp_versions Modules.symvers
-- 
2.17.1