linux-kernel - [PATCH 1/2][v2] driver/memory:Move Freescale IFC driver to a common driver

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Date:	Wed, 15 Jan 2014 17:43:23 +0530
From:	Prabhakar Kushwaha <prabhakar@...escale.com>
To:	<arnd@...db.de>, <gregkh@...uxfoundation.org>
CC:	<linux-kernel@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<scottwood@...escale.com>,
	Prabhakar Kushwaha <prabhakar@...escale.com>
Subject: [PATCH 1/2][v2] driver/memory:Move Freescale IFC driver to a common driver

Freescale IFC controller has been used for mpc8xxx. It will be used
for ARM-based SoC as well. This patch moves the driver to driver/memory
and fix the header file includes.

Also remove module_platform_driver() and  instead call
platform_driver_register() from subsys_initcall() to make sure this module
has been loaded before MTD partition parsing starts.

Signed-off-by: Prabhakar Kushwaha <prabhakar@...escale.com>
---
Changes for v2:
	- Move fsl_ifc in driver/memory

 arch/powerpc/sysdev/Makefile                       |    1 -
 drivers/memory/Makefile                            |    1 +
 {arch/powerpc/sysdev => drivers/memory}/fsl_ifc.c  |    8 ++++++--
 drivers/mtd/nand/fsl_ifc_nand.c                    |    2 +-
 .../include/asm => include/linux}/fsl_ifc.h        |    0
 5 files changed, 8 insertions(+), 4 deletions(-)
 rename {arch/powerpc/sysdev => drivers/memory}/fsl_ifc.c (98%)
 rename {arch/powerpc/include/asm => include/linux}/fsl_ifc.h (100%)

diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index f67ac90..afbcc37 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -21,7 +21,6 @@ obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o fsl_mpic_err.o
 obj-$(CONFIG_FSL_PCI)		+= fsl_pci.o $(fsl-msi-obj-y)
 obj-$(CONFIG_FSL_PMC)		+= fsl_pmc.o
 obj-$(CONFIG_FSL_LBC)		+= fsl_lbc.o
-obj-$(CONFIG_FSL_IFC)		+= fsl_ifc.o
 obj-$(CONFIG_FSL_GTM)		+= fsl_gtm.o
 obj-$(CONFIG_FSL_85XX_CACHE_SRAM)	+= fsl_85xx_l2ctlr.o fsl_85xx_cache_sram.o
 obj-$(CONFIG_SIMPLE_GPIO)	+= simple_gpio.o
diff --git a/drivers/memory/Makefile b/drivers/memory/Makefile
index 969d923..f2bf25c 100644
--- a/drivers/memory/Makefile
+++ b/drivers/memory/Makefile
@@ -6,6 +6,7 @@ ifeq ($(CONFIG_DDR),y)
 obj-$(CONFIG_OF)		+= of_memory.o
 endif
 obj-$(CONFIG_TI_EMIF)		+= emif.o
+obj-$(CONFIG_FSL_IFC)		+= fsl_ifc.o
 obj-$(CONFIG_MVEBU_DEVBUS)	+= mvebu-devbus.o
 obj-$(CONFIG_TEGRA20_MC)	+= tegra20-mc.o
 obj-$(CONFIG_TEGRA30_MC)	+= tegra30-mc.o
diff --git a/arch/powerpc/sysdev/fsl_ifc.c b/drivers/memory/fsl_ifc.c
similarity index 98%
rename from arch/powerpc/sysdev/fsl_ifc.c
rename to drivers/memory/fsl_ifc.c
index d7fc722..135a950 100644
--- a/arch/powerpc/sysdev/fsl_ifc.c
+++ b/drivers/memory/fsl_ifc.c
@@ -30,8 +30,8 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/fsl_ifc.h>
 #include <asm/prom.h>
-#include <asm/fsl_ifc.h>
 
 struct fsl_ifc_ctrl *fsl_ifc_ctrl_dev;
 EXPORT_SYMBOL(fsl_ifc_ctrl_dev);
@@ -299,7 +299,11 @@ static struct platform_driver fsl_ifc_ctrl_driver = {
 	.remove      = fsl_ifc_ctrl_remove,
 };
 
-module_platform_driver(fsl_ifc_ctrl_driver);
+static int __init fsl_ifc_init(void)
+{
+	return platform_driver_register(&fsl_ifc_ctrl_driver);
+}
+subsys_initcall(fsl_ifc_init);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Freescale Semiconductor");
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 4335577..865b323 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -30,7 +30,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand_ecc.h>
-#include <asm/fsl_ifc.h>
+#include <linux/fsl_ifc.h>
 
 #define FSL_IFC_V1_1_0	0x01010000
 #define ERR_BYTE		0xFF /* Value returned for read
diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/include/linux/fsl_ifc.h
similarity index 100%
rename from arch/powerpc/include/asm/fsl_ifc.h
rename to include/linux/fsl_ifc.h
-- 
1.7.9.5



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