linux-kernel - [PATCH 1/2] of: Allow selection of OF_DYNAMIC and OF_OVERLAY if OF

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Message-Id: <1422029405-9353-2-git-send-email-geert+renesas@glider.be>
Date:	Fri, 23 Jan 2015 17:10:04 +0100
From:	Geert Uytterhoeven <geert+renesas@...der.be>
To:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 1/2] of: Allow selection of OF_DYNAMIC and OF_OVERLAY if OF_UNITTEST

Currently OF_DYNAMIC and OF_OVERLAY are not visible to the user, and are
selected automatically only when needed.

Allow them to be enabled manually to improve device tree unit test
coverage.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 drivers/of/Kconfig | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 38d1c51f58b108db..e9301686493933cc 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -34,7 +34,11 @@ config OF_PROMTREE
 # Hardly any platforms need this.  It is safe to select, but only do so if you
 # need it.
 config OF_DYNAMIC
-	bool
+	bool "Support for dynamic device trees" if OF_UNITTEST
+	help
+	  On some platforms, the device tree can be manipulated at runtime.
+	  While this option is selected automatically on such platforms, you
+	  can enable it manually to improve device tree unit test coverage.
 
 config OF_ADDRESS
 	def_bool y
@@ -84,9 +88,14 @@ config OF_RESOLVE
 	bool
 
 config OF_OVERLAY
-	bool
+	bool "Support for device tree overlays" if OF_UNITTEST
 	depends on OF
 	select OF_DYNAMIC
 	select OF_RESOLVE
+	help
+	  Overlays are a method to dynamically modify part of the kernel's
+	  device tree with dynamically loaded data.
+	  While this option is selected automatically when needed, you can
+	  enable it manually to improve device tree unit test coverage.
 
 endmenu # OF
-- 
1.9.1

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