linux-kernel - [RFCv2 8/9] xshm: Makefile and Kconfig for M7400 Shared Memory Drivers

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Date:	Tue, 29 Nov 2011 20:39:09 +0100
From:	Sjur Brændeland <sjur.brandeland@...ricsson.com>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Walleij <linus.walleij@...aro.org>, sjurbren@...il.com,
	Paul Bolle <pebolle@...cali.nl>,
	Sjur Brændeland <sjur.brandeland@...ricsson.com>
Subject: [RFCv2 8/9] xshm: Makefile and Kconfig for M7400 Shared Memory Drivers

Signed-off-by: Sjur Brændeland <sjur.brandeland@...ricsson.com>
---

Changes from RFCv2. These are pointed out by Paul Bolle:
o Replaced comment with proper dependency to C2C_DRIVER driver
o Fixed unnecessary name-change for xshm_chr
o Introduced CONFIG_XSHM_CHR that automatically selects CONFIG_XSHM

 drivers/Kconfig       |    2 ++
 drivers/Makefile      |    1 +
 drivers/xshm/Kconfig  |   17 +++++++++++++++++
 drivers/xshm/Makefile |    3 +++
 4 files changed, 23 insertions(+), 0 deletions(-)
 create mode 100644 drivers/xshm/Kconfig
 create mode 100644 drivers/xshm/Makefile

diff --git a/drivers/Kconfig b/drivers/Kconfig
index 041426c..742f028 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -138,4 +138,6 @@ source "drivers/virt/Kconfig"
 
 source "drivers/devfreq/Kconfig"
 
+source "drivers/xshm/Kconfig"
+
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 91077ac..30eae54 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -121,6 +121,7 @@ obj-$(CONFIG_VLYNQ)		+= vlynq/
 obj-$(CONFIG_STAGING)		+= staging/
 obj-y				+= platform/
 obj-y				+= ieee802154/
+obj-$(CONFIG_XSHM)		+= xshm/
 #common clk code
 obj-y				+= clk/
 
diff --git a/drivers/xshm/Kconfig b/drivers/xshm/Kconfig
new file mode 100644
index 0000000..bae0da2
--- /dev/null
+++ b/drivers/xshm/Kconfig
@@ -0,0 +1,17 @@
+# XSHM gets selected by whoever wants it.
+config XSHM
+	depends on CONFIG_C2C
+	tristate
+
+config XSHM_CHR
+	tristate "Character device for External Shared Memory (XSHM)"
+	select XSHM
+	default n
+	---help---
+	Say "Y" if you want to character device for External Shared
+	Memory (XSHM) IPC mechanism. XSHM is an IPC protocol used to
+	talk to external device such as modem over a shared memory
+	(e.g. Chip to Chip).
+	Only say "M" here if you want to test XSHM and needs to load
+	and unload its module.
+	If unsure say N.
diff --git a/drivers/xshm/Makefile b/drivers/xshm/Makefile
new file mode 100644
index 0000000..954bd22
--- /dev/null
+++ b/drivers/xshm/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_XSHM) += xshm.o
+xshm-objs := xshm_boot.o xshm_dev.o
+obj-$(CONFIG_XSHM_CHR) +=  xshm_chr.o
-- 
1.7.0.4

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