mtd: introduce mtd_suspend interface

Signed-off-by: Artem Bityutskiy <[e-mail]>
Signed-off-by: David Woodhouse <[e-mail]>

drivers/mtd/maps/physmap.c

···
 
 	for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
 		if (info->mtd[i]->suspend && info->mtd[i]->resume)
-			if (info->mtd[i]->suspend(info->mtd[i]) == 0)
+			if (mtd_suspend(info->mtd[i]) == 0)
 				info->mtd[i]->resume(info->mtd[i]);
 }
 #else

drivers/mtd/maps/pxa2xx-flash.c

···
 {
 	struct pxa2xx_flash_info *info = platform_get_drvdata(dev);
 
-	if (info && info->mtd->suspend(info->mtd) == 0)
+	if (info && mtd_suspend(info->mtd) == 0)
 		info->mtd->resume(info->mtd);
 }
 #else

drivers/mtd/maps/rbtx4939-flash.c

···
 	struct rbtx4939_flash_info *info = platform_get_drvdata(dev);
 
 	if (info->mtd->suspend && info->mtd->resume)
-		if (info->mtd->suspend(info->mtd) == 0)
+		if (mtd_suspend(info->mtd) == 0)
 			info->mtd->resume(info->mtd);
 }
 #else

drivers/mtd/maps/sa1100-flash.c

···
 static void sa1100_mtd_shutdown(struct platform_device *dev)
 {
 	struct sa_info *info = platform_get_drvdata(dev);
-	if (info && info->mtd->suspend(info->mtd) == 0)
+	if (info && mtd_suspend(info->mtd) == 0)
 		info->mtd->resume(info->mtd);
 }
 #else

drivers/mtd/mtdconcat.c

···
 
 	for (i = 0; i < concat->num_subdev; i++) {
 		struct mtd_info *subdev = concat->subdev[i];
-		if ((rc = subdev->suspend(subdev)) < 0)
+		if ((rc = mtd_suspend(subdev)) < 0)
 			return rc;
 	}
 	return rc;

drivers/mtd/mtdcore.c

···
 	struct mtd_info *mtd = dev_to_mtd(dev);
 
 	if (mtd && mtd->suspend)
-		return mtd->suspend(mtd);
+		return mtd_suspend(mtd);
 	else
 		return 0;
 }

drivers/mtd/mtdpart.c

···
 static int part_suspend(struct mtd_info *mtd)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->suspend(part->master);
+	return mtd_suspend(part->master);
 }
 
 static void part_resume(struct mtd_info *mtd)

drivers/mtd/nand/nomadik_nand.c

···
 	struct nomadik_nand_host *host = dev_get_drvdata(dev);
 	int ret = 0;
 	if (host)
-		ret = host->mtd.suspend(&host->mtd);
+		ret = mtd_suspend(&host->mtd);
 	return ret;
 }
 

drivers/mtd/nand/pxa3xx_nand.c

···
 
 	for (cs = 0; cs < pdata->num_cs; cs++) {
 		mtd = info->host[cs]->mtd;
-		mtd->suspend(mtd);
+		mtd_suspend(mtd);
 	}
 
 	return 0;

include/linux/mtd/mtd.h

···
 	int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
 	int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
 	int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
+	int (*suspend) (struct mtd_info *mtd);
 
 	/* Backing device capabilities for this device
 	 * - provides mmap capabilities
···
 	struct backing_dev_info *backing_dev_info;
 
 	/* Power Management functions */
-	int (*suspend) (struct mtd_info *mtd);
 	void (*resume) (struct mtd_info *mtd);
 
 	/* Bad block management functions */
···
 static inline int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	return mtd->is_locked(mtd, ofs, len);
+}
+
+static inline int mtd_suspend(struct mtd_info *mtd)
+{
+	return mtd->suspend(mtd);
 }
 
 static inline struct mtd_info *dev_to_mtd(struct device *dev)