linux-kernel - [PATCH 1/8] goldfish: refactor goldfish platform configs

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Message-Id: <1448413812-24289-2-git-send-email-jinqian@android.com>
Date:	Tue, 24 Nov 2015 17:10:05 -0800
From:	Jin Qian <jinqian@...roid.com>
To:	Ralf Baechle <ralf@...ux-mips.org>,
	Huacai Chen <chenhc@...ote.com>,
	Greg Hackmann <ghackmann@...gle.com>,
	Miodrag Dinic <miodrag.dinic@...tec.com>,
	linux-kernel@...r.kernel.org
Cc:	Jin Qian <jinqian@...roid.com>
Subject: [PATCH 1/8] goldfish: refactor goldfish platform configs

From: Greg Hackmann <ghackmann@...gle.com>

On new virtual devices, the goldfish virtual bus can be replaced with
autoprobing infrastructure like Device Tree.  Refactor the goldfish
kernel configs to better accommodate this.

Move the goldfish platform into a menuconfig in the style of the chrome
platform, and separate the goldfish bus into its own config option.

Signed-off-by: Greg Hackmann <ghackmann@...gle.com>
(cherry picked from commit 711910868190ee3645c1c52701bdde844447783f)
Signed-off-by: Jin Qian <jinqian@...roid.com>
---
 drivers/platform/Kconfig           |  3 +--
 drivers/platform/goldfish/Kconfig  | 18 ++++++++++++++++++
 drivers/platform/goldfish/Makefile |  2 +-
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index 0adccbf..c11db8b 100644
--- a/drivers/platform/Kconfig
+++ b/drivers/platform/Kconfig
@@ -4,8 +4,7 @@ endif
 if MIPS
 source "drivers/platform/mips/Kconfig"
 endif
-if GOLDFISH
+
 source "drivers/platform/goldfish/Kconfig"
-endif
 
 source "drivers/platform/chrome/Kconfig"
diff --git a/drivers/platform/goldfish/Kconfig b/drivers/platform/goldfish/Kconfig
index 635ef25..1ae3690 100644
--- a/drivers/platform/goldfish/Kconfig
+++ b/drivers/platform/goldfish/Kconfig
@@ -1,5 +1,23 @@
+menuconfig GOLDFISH
+	bool "Platform support for Goldfish virtual devices"
+	depends on X86_32 || X86_64 || ARM || ARM64
+	---help---
+	  Say Y here to get to see options for the Goldfish virtual platform.
+	  This option alone does not add any kernel code.
+
+	  Unless you are building for the Android Goldfish emulator say N here.
+
+if GOLDFISH
+
+config GOLDFISH_BUS
+	tristate "Goldfish platform bus"
+	---help---
+	  This is a virtual bus to host Goldfish Android Virtual Devices.
+
 config GOLDFISH_PIPE
 	tristate "Goldfish virtual device for QEMU pipes"
 	---help---
 	  This is a virtual device to drive the QEMU pipe interface used by
 	  the Goldfish Android Virtual Device.
+
+endif # GOLDFISH
diff --git a/drivers/platform/goldfish/Makefile b/drivers/platform/goldfish/Makefile
index a002239..d348712 100644
--- a/drivers/platform/goldfish/Makefile
+++ b/drivers/platform/goldfish/Makefile
@@ -1,5 +1,5 @@
 #
 # Makefile for Goldfish platform specific drivers
 #
-obj-$(CONFIG_GOLDFISH)	+=	pdev_bus.o
+obj-$(CONFIG_GOLDFISH_BUS)	+= pdev_bus.o
 obj-$(CONFIG_GOLDFISH_PIPE)	+= goldfish_pipe.o
-- 
2.6.0.rc2.230.g3dd15c0

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