diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 76a76751da3660ce63123844d97eca891d2cbab2..6659b2275c0c6a5ce150906c25ac1d106700065a 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -37,9 +37,9 @@
 #define	OPCODE_NORM_READ	0x03	/* Read data bytes (low frequency) */
 #define	OPCODE_FAST_READ	0x0b	/* Read data bytes (high frequency) */
 #define	OPCODE_PP		0x02	/* Page program (up to 256 bytes) */
-#define	OPCODE_BE_4K 		0x20	/* Erase 4KiB block */
+#define	OPCODE_BE_4K		0x20	/* Erase 4KiB block */
 #define	OPCODE_BE_32K		0x52	/* Erase 32KiB block */
-#define	OPCODE_BE		0xc7	/* Erase whole flash block */
+#define	OPCODE_CHIP_ERASE	0xc7	/* Erase whole flash chip */
 #define	OPCODE_SE		0xd8	/* Sector erase (usually 64KiB) */
 #define	OPCODE_RDID		0x9f	/* Read JEDEC ID */
 
@@ -167,7 +167,7 @@ static int wait_till_ready(struct m25p *flash)
  *
  * Returns 0 if successful, non-zero otherwise.
  */
-static int erase_block(struct m25p *flash)
+static int erase_chip(struct m25p *flash)
 {
 	DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB\n",
 			flash->spi->dev.bus_id, __func__,
@@ -181,7 +181,7 @@ static int erase_block(struct m25p *flash)
 	write_enable(flash);
 
 	/* Set up command buffer. */
-	flash->command[0] = OPCODE_BE;
+	flash->command[0] = OPCODE_CHIP_ERASE;
 
 	spi_write(flash->spi, flash->command, 1);
 
@@ -250,15 +250,18 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 	mutex_lock(&flash->lock);
 
-	/* REVISIT in some cases we could speed up erasing large regions
-	 * by using OPCODE_SE instead of OPCODE_BE_4K
-	 */
-
-	/* now erase those sectors */
-	if (len == flash->mtd.size && erase_block(flash)) {
+	/* whole-chip erase? */
+	if (len == flash->mtd.size && erase_chip(flash)) {
 		instr->state = MTD_ERASE_FAILED;
 		mutex_unlock(&flash->lock);
 		return -EIO;
+
+	/* REVISIT in some cases we could speed up erasing large regions
+	 * by using OPCODE_SE instead of OPCODE_BE_4K.  We may have set up
+	 * to use "small sector erase", but that's not always optimal.
+	 */
+
+	/* "sector"-at-a-time erase */
 	} else {
 		while (len) {
 			if (erase_sector(flash, addr)) {
@@ -574,10 +577,11 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi)
 	for (tmp = 0, info = m25p_data;
 			tmp < ARRAY_SIZE(m25p_data);
 			tmp++, info++) {
-		if (info->jedec_id == jedec)
-			if (ext_jedec != 0 && info->ext_id != ext_jedec)
+		if (info->jedec_id == jedec) {
+			if (info->ext_id != 0 && info->ext_id != ext_jedec)
 				continue;
 			return info;
+		}
 	}
 	dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec);
 	return NULL;
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 42d844f8f6bfef79bdfef42ed48b33368ac4ecd0..dfbf3f270cea9441a7261b69ca3c9f8aa9c87770 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -19,7 +19,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/concat.h>
-#include <asm/io.h>
+#include <linux/io.h>
 
 #define MAX_RESOURCES		4
 
@@ -27,7 +27,6 @@ struct physmap_flash_info {
 	struct mtd_info		*mtd[MAX_RESOURCES];
 	struct mtd_info		*cmtd;
 	struct map_info		map[MAX_RESOURCES];
-	struct resource		*res;
 #ifdef CONFIG_MTD_PARTITIONS
 	int			nr_parts;
 	struct mtd_partition	*parts;
@@ -70,16 +69,7 @@ static int physmap_flash_remove(struct platform_device *dev)
 #endif
 			map_destroy(info->mtd[i]);
 		}
-
-		if (info->map[i].virt != NULL)
-			iounmap(info->map[i].virt);
-	}
-
-	if (info->res != NULL) {
-		release_resource(info->res);
-		kfree(info->res);
 	}
-
 	return 0;
 }
 
@@ -101,7 +91,8 @@ static int physmap_flash_probe(struct platform_device *dev)
 	if (physmap_data == NULL)
 		return -ENODEV;
 
-	info = kzalloc(sizeof(struct physmap_flash_info), GFP_KERNEL);
+	info = devm_kzalloc(&dev->dev, sizeof(struct physmap_flash_info),
+			    GFP_KERNEL);
 	if (info == NULL) {
 		err = -ENOMEM;
 		goto err_out;
@@ -114,10 +105,10 @@ static int physmap_flash_probe(struct platform_device *dev)
 		       (unsigned long long)(dev->resource[i].end - dev->resource[i].start + 1),
 		       (unsigned long long)dev->resource[i].start);
 
-		info->res = request_mem_region(dev->resource[i].start,
-					       dev->resource[i].end - dev->resource[i].start + 1,
-					       dev->dev.bus_id);
-		if (info->res == NULL) {
+		if (!devm_request_mem_region(&dev->dev,
+			dev->resource[i].start,
+			dev->resource[i].end - dev->resource[i].start + 1,
+			dev->dev.bus_id)) {
 			dev_err(&dev->dev, "Could not reserve memory region\n");
 			err = -ENOMEM;
 			goto err_out;
@@ -129,7 +120,8 @@ static int physmap_flash_probe(struct platform_device *dev)
 		info->map[i].bankwidth = physmap_data->width;
 		info->map[i].set_vpp = physmap_data->set_vpp;
 
-		info->map[i].virt = ioremap(info->map[i].phys, info->map[i].size);
+		info->map[i].virt = devm_ioremap(&dev->dev, info->map[i].phys,
+						 info->map[i].size);
 		if (info->map[i].virt == NULL) {
 			dev_err(&dev->dev, "Failed to ioremap flash region\n");
 			err = EIO;
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index 024e3fffd4bb49b6176af4701c07e344120a3fc2..a83192f80eba5176b6bbad4649bd5996159b086a 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -163,9 +163,11 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun,
 	ret = parse_mtd_partitions(&fun->mtd, part_types, &fun->parts, 0);
 
 #ifdef CONFIG_MTD_OF_PARTS
-	if (ret == 0)
-		ret = of_mtd_parse_partitions(fun->dev, &fun->mtd,
-					      flash_np, &fun->parts);
+	if (ret == 0) {
+		ret = of_mtd_parse_partitions(fun->dev, flash_np, &fun->parts);
+		if (ret < 0)
+			goto err;
+	}
 #endif
 	if (ret > 0)
 		ret = add_mtd_partitions(&fun->mtd, fun->parts, ret);
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index 75c899039023051e9b0f8dda595d734ff9aebdc0..9bd6c9ac844396553cbbfcf026860ff4420bce25 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -141,6 +141,7 @@ static int __devinit pasemi_nand_probe(struct of_device *ofdev,
 	}
 
 	lpcctl = pci_resource_start(pdev, 0);
+	pci_dev_put(pdev);
 
 	if (!request_region(lpcctl, 4, driver_name)) {
 		err = -EBUSY;
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index c0fa9c9edf089c1a039ded475fb13740cfa52d1f..15f0a26730aea38e4c65708aac43473a8da02122 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -269,6 +269,7 @@ static struct pxa3xx_nand_timing stm2GbX16_timing = {
 
 static struct pxa3xx_nand_flash stm2GbX16 = {
 	.timing = &stm2GbX16_timing,
+	.cmdset	= &largepage_cmdset,
 	.page_per_block = 64,
 	.page_size = 2048,
 	.flash_width = 16,
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index e39b21d3e168e5bb3cabf1a076193bca3f33bcab..a7e4d985f5ef553892a4fba5890647324f1c156c 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -32,19 +32,18 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
 
-#include <asm/io.h>
 #include <asm/mach/flash.h>
-#include <asm/arch/gpmc.h>
-#include <asm/arch/onenand.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/pm.h>
+#include <mach/gpmc.h>
+#include <mach/onenand.h>
+#include <mach/gpio.h>
+#include <mach/pm.h>
 
-#include <linux/dma-mapping.h>
-#include <asm/dma-mapping.h>
-#include <asm/arch/dma.h>
+#include <mach/dma.h>
 
-#include <asm/arch/board.h>
+#include <mach/board.h>
 
 #define DRIVER_NAME "omap2-onenand"