[ARM] Allow MTD device name to be passed via platform data

Allow SA1100 devices to pass the name of the flash device to the
SA1100 map driver.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-sa1100/generic.c

@@ -23,6 +23,7 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/mach/map.h>
+#include <asm/mach/flash.h>
 #include <asm/irq.h>
 
 #include "generic.h"
@@ -283,6 +284,7 @@ static struct platform_device sa11x0mtd_device = {
 void sa11x0_set_flash_data(struct flash_platform_data *flash,
 			   struct resource *res, int nr)
 {
+	flash->name = "sa1100";
 	sa11x0mtd_device.dev.platform_data = flash;
 	sa11x0mtd_device.resource = res;
 	sa11x0mtd_device.num_resources = nr;

drivers/mtd/maps/sa1100-flash.c

@@ -301,7 +301,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 			break;
 
 		subdev->map.name = subdev->name;
-		sprintf(subdev->name, "sa1100-%d", i);
+		sprintf(subdev->name, "%s-%d", plat->name, i);
 		subdev->plat = plat;
 
 		ret = sa1100_probe_subdev(subdev, res);
@@ -323,7 +323,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 	 * otherwise fail.  Either way, it'll be called "sa1100".
 	 */
 	if (info->num_subdev == 1) {
-		strcpy(info->subdev[0].name, "sa1100");
+		strcpy(info->subdev[0].name, plat->name);
 		info->mtd = info->subdev[0].mtd;
 		ret = 0;
 	} else if (info->num_subdev > 1) {
@@ -336,7 +336,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 			cdev[i] = info->subdev[i].mtd;
 
 		info->mtd = mtd_concat_create(cdev, info->num_subdev,
-					      "sa1100");
+					      plat->name);
 		if (info->mtd == NULL)
 			ret = -ENXIO;
 #else

include/asm-arm/mach/flash.h

@@ -14,6 +14,7 @@ struct mtd_partition;
 
 /*
  * map_name:	the map probe function name
+ * name:	flash device name (eg, as used with mtdparts=)
  * width:	width of mapped device
  * init:	method called at driver/device initialisation
  * exit:	method called at driver/device removal
@@ -23,6 +24,7 @@ struct mtd_partition;
  */
 struct flash_platform_data {
 	const char	*map_name;
+	const char	*name;
 	unsigned int	width;
 	int		(*init)(void);
 	void		(*exit)(void);