From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 10 May 2017 19:05:16 +0000 (+0200)
Subject: tee: add ARM_SMCCC dependency
X-Git-Tag: accepted/tizen/unified/20190130.053716~64
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6c9d6dd7f0fae07c42f12d3ebab8c85aab385749;p=profile%2Fcommon%2Fplatform%2Fkernel%2Flinux-artik7.git

tee: add ARM_SMCCC dependency

For the moment, the tee subsystem only makes sense in combination with
the op-tee driver that depends on ARM_SMCCC, so let's hide the subsystem
from users that can't select that.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

[egukim: Backported from mainline kernel v4.12]
Signed-off-by:eunggu kim <egukim@dignsys.com>

Change-Id: I043b28e0e44ee8b9bb1310af4ff811af39fd5f84
---

diff --git a/drivers/tee/Kconfig b/drivers/tee/Kconfig
index 2330a4e..a6df12d 100644
--- a/drivers/tee/Kconfig
+++ b/drivers/tee/Kconfig
@@ -1,6 +1,7 @@
 # Generic Trusted Execution Environment Configuration
 config TEE
 	tristate "Trusted Execution Environment support"
+	depends on HAVE_ARM_SMCCC || COMPILE_TEST
 	select DMA_SHARED_BUFFER
 	select GENERIC_ALLOCATOR
 	help