From 48002b010188b35e6d35531f990b8004f1ddd021 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Mon, 12 Sep 2022 06:40:28 +0000
Subject: [PATCH] device-tree/Makefile: Tune relative path

The relative path from the device-tree/platform to $TOP
varies between local and GVS build. The folder "nvidia"
in out folder is introduced in the local build which is
not there in the GVs build.

Check the relative path of $TOP and adjust accordingly.

Bug 3787936

Change-Id: I5a34e64a8903f662153c361c2fc7e3ee432d6c14
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2775081
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
---
 Makefile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 949deaf..5310871 100644
--- a/Makefile
+++ b/Makefile
@@ -17,8 +17,15 @@ DTC_CPP_FLAGS += -DLINUX_VERSION=504 -DTEGRA_HOST1X_DT_VERSION=1
 
 tegra-dtstree := $(TOP)/hardware/nvidia
 
-# From out/l4t-t186ref-debug-aarch64/nvidia/kernel-nvidia-oot/nvidia-oot/device-tree/platform
-tegra-rel-dtstree := ../../../../../../../hardware/nvidia
+# Get relative path for tegra-dtstree from this makefile
+null :=
+space :=$(null) $(null)
+obj-path := $(obj)
+obj-path-from-top := $(subst $(TOP),,$(obj-path))
+rel-top-path := $(subst /, $(space)/,$(obj-path-from-top))
+rel-top-path := $(patsubst /%,../,$(rel-top-path))
+rel-top-path := $(subst $(space),,$(rel-top-path))
+tegra-rel-dtstree := $(rel-top-path)/hardware/nvidia
 
 DTC_INCLUDE :=
 # SOC independent common include