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Message-ID: <8dd3427d60e01c3e7a6eceb7dfd72d5a896b5008.1371018406.git.rubini@gnudd.com>
Date: Wed, 12 Jun 2013 09:13:25 +0200
From: Alessandro Rubini <rubini@...dd.com>
To: linux-kernel@...r.kernel.org
Cc: Juan David Gonzalez Cobas <juan.david.gonzalez.cobas@...n.ch>,
"Emilio G. Cota" <cota@...ap.org>,
Samuel Iglesias Gonsalvez <siglesias@...lia.com>,
gregkh@...uxfoundation.org, Rob Landley <rob@...dley.net>,
linux-doc@...r.kernel.org
Subject: [PATCH 1/8] FMC: create drivers/fmc and toplevel Kconfig question
This commit creates the drivers/fmc directory and puts the necessary
hooks for kbuild and kconfig. The code is currently a placeholder
that only registers an empty bus.
Signed-off-by: Alessandro Rubini <rubini@...dd.com>
Acked-by: Juan David Gonzalez Cobas <dcobas@...n.ch>
Acked-by: Emilio G. Cota <cota@...ap.org>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@...lia.com>
---
MAINTAINERS | 9 +++++++++
drivers/Kconfig | 2 ++
drivers/Makefile | 1 +
drivers/fmc/Kconfig | 17 +++++++++++++++++
drivers/fmc/Makefile | 4 ++++
drivers/fmc/fmc-core.c | 24 ++++++++++++++++++++++++
6 files changed, 57 insertions(+), 0 deletions(-)
create mode 100644 drivers/fmc/Kconfig
create mode 100644 drivers/fmc/Makefile
create mode 100644 drivers/fmc/fmc-core.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d97b3e..10ebdfc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3322,6 +3322,15 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/floppy.git
S: Odd fixes
F: drivers/block/floppy.c
+FMC SUBSYSTEM
+M: Alessandro Rubini <rubini@...dd.com>
+W: http://www.ohwr.org/projects/fmc-bus
+S: Supported
+F: drivers/fmc/
+F: include/linux/fmc*.h
+F: include/linux/ipmi-fru.h
+K: fmc_d.*register
+
FPU EMULATOR
M: Bill Metzenthen <billm@...bpc.org.au>
W: http://floatingpoint.sourceforge.net/emulator/index.html
diff --git a/drivers/Kconfig b/drivers/Kconfig
index b8ec9cf..aa43b91 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -164,4 +164,6 @@ source "drivers/ipack/Kconfig"
source "drivers/reset/Kconfig"
+source "drivers/fmc/Kconfig"
+
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index bbf3810..ab93de8 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -151,3 +151,4 @@ obj-$(CONFIG_IIO) += iio/
obj-$(CONFIG_VME_BUS) += vme/
obj-$(CONFIG_IPACK_BUS) += ipack/
obj-$(CONFIG_NTB) += ntb/
+obj-$(CONFIG_FMC) += fmc/
diff --git a/drivers/fmc/Kconfig b/drivers/fmc/Kconfig
new file mode 100644
index 0000000..e287902
--- /dev/null
+++ b/drivers/fmc/Kconfig
@@ -0,0 +1,17 @@
+#
+# FMC (ANSI-VITA 57.1) bus support
+#
+
+menuconfig FMC
+ tristate "FMC support"
+ help
+
+ FMC (FPGA Mezzanine Carrier) is a mechanical and electrical
+ standard for mezzanine cards that plug into a carrier board.
+ This kernel subsystem supports the matching between carrier
+ and mezzanine based on identifiers stored in the internal I2C
+ EEPROM, as well as having carrier-independent drivers.
+
+ The framework was born outside of the kernel and at this time
+ the off-tree code base is more complete. Code and documentation
+ is at git://ohwr.org/fmc-projects/fmc-bus.git .
diff --git a/drivers/fmc/Makefile b/drivers/fmc/Makefile
new file mode 100644
index 0000000..a2784d8
--- /dev/null
+++ b/drivers/fmc/Makefile
@@ -0,0 +1,4 @@
+
+obj-$(CONFIG_FMC) += fmc.o
+
+fmc-y = fmc-core.o
diff --git a/drivers/fmc/fmc-core.c b/drivers/fmc/fmc-core.c
new file mode 100644
index 0000000..fc3547f
--- /dev/null
+++ b/drivers/fmc/fmc-core.c
@@ -0,0 +1,24 @@
+/* Temporary placeholder so the empty code can build */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+static struct bus_type fmc_bus_type = {
+ .name = "fmc",
+};
+
+static int fmc_init(void)
+{
+ return bus_register(&fmc_bus_type);
+}
+
+static void fmc_exit(void)
+{
+ bus_unregister(&fmc_bus_type);
+}
+
+module_init(fmc_init);
+module_exit(fmc_exit);
+
+MODULE_LICENSE("GPL");
--
1.7.7.2
--
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