Merge tag 'mtd/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/…

…git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "MTD core
   - block2mtd: page index should use pgoff_t
   - maps: physmap: minimal Runtime PM support
   - maps: pcmciamtd: avoid possible sleep-in-atomic-context bugs
   - concat: Fix a comment referring to an unknown symbol

  Raw NAND:
   - Macronix: Use match_string() helper
   - Atmel: switch to using devm_fwnode_gpiod_get()
   - Denali: rework the SKIP_BYTES feature and add reset controlling
   - Brcmnand: set appropriate DMA mask
   - Cadence: add unspecified HAS_IOMEM dependency
   - Various cleanup.

  Onenand:
   - Rename Samsung and Omap2 drivers to avoid possible build warnings
   - Enable compile testing
   - Various build issues
   - Kconfig cleanup

  SPI-NAND:
   - Support for Toshiba TC58CVG2S0HRAIJ

  SPI-NOR:
   - Add support for TB selection using SR bit 6,
   - Add support for few flashes"

* tag 'mtd/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (41 commits)
  mtd: concat: Fix a comment referring to an unknown symbol
  mtd: rawnand: add unspecified HAS_IOMEM dependency
  mtd: block2mtd: page index should use pgoff_t
  mtd: maps: physmap: Add minimal Runtime PM support
  mtd: maps: pcmciamtd: fix possible sleep-in-atomic-context bugs in pcmciamtd_set_vpp()
  mtd: onenand: Rename omap2 driver to avoid a build warning
  mtd: onenand: Use a better name for samsung driver
  mtd: rawnand: atmel: switch to using devm_fwnode_gpiod_get()
  mtd: spinand: add support for Toshiba TC58CVG2S0HRAIJ
  mtd: rawnand: macronix: Use match_string() helper to simplify the code
  mtd: sharpslpart: Fix unsigned comparison to zero
  mtd: onenand: Enable compile testing of OMAP and Samsung drivers
  mtd: onenand: samsung: Fix printing format for size_t on 64-bit
  mtd: onenand: samsung: Fix pointer cast -Wpointer-to-int-cast warnings on 64 bit
  mtd: rawnand: denali: remove hard-coded DENALI_DEFAULT_OOB_SKIP_BYTES
  mtd: rawnand: denali_dt: add reset controlling
  dt-bindings: mtd: denali_dt: document reset property
  mtd: rawnand: denali_dt: Add support for configuring SPARE_AREA_SKIP_BYTES
  mtd: rawnand: denali_dt: error out if platform has no associated data
  mtd: rawnand: brcmnand: Set appropriate DMA mask
  ...

Documentation/devicetree/bindings/mtd/denali-nand.txt

@@ -14,6 +14,11 @@ Required properties:
     interface clock, and the ECC circuit clock.
   - clock-names: should contain "nand", "nand_x", "ecc"
 
+Optional properties:
+  - resets: may contain phandles to the controller core reset, the register
+    reset
+  - reset-names: may contain "nand", "reg"
+
 Sub-nodes:
   Sub-nodes represent available NAND chips.
 
@@ -46,6 +51,8 @@ nand: nand@ff900000 {
 	reg-names = "nand_data", "denali_reg";
 	clocks = <&nand_clk>, <&nand_x_clk>, <&nand_ecc_clk>;
 	clock-names = "nand", "nand_x", "ecc";
+	resets = <&nand_rst>, <&nand_reg_rst>;
+	reset-names = "nand", "reg";
 	interrupts = <0 144 4>;
 
 	nand@0 {

drivers/mtd/devices/block2mtd.c

@@ -44,7 +44,7 @@ struct block2mtd_dev {
 static LIST_HEAD(blkmtd_device_list);
 
 
-static struct page *page_read(struct address_space *mapping, int index)
+static struct page *page_read(struct address_space *mapping, pgoff_t index)
 {
 	return read_mapping_page(mapping, index, NULL);
 }
@@ -54,7 +54,7 @@ static int _block2mtd_erase(struct block2mtd_dev *dev, loff_t to, size_t len)
 {
 	struct address_space *mapping = dev->blkdev->bd_inode->i_mapping;
 	struct page *page;
-	int index = to >> PAGE_SHIFT;	// page index
+	pgoff_t index = to >> PAGE_SHIFT;	// page index
 	int pages = len >> PAGE_SHIFT;
 	u_long *p;
 	u_long *max;
@@ -103,7 +103,7 @@ static int block2mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
 {
 	struct block2mtd_dev *dev = mtd->priv;
 	struct page *page;
-	int index = from >> PAGE_SHIFT;
+	pgoff_t index = from >> PAGE_SHIFT;
 	int offset = from & (PAGE_SIZE-1);
 	int cpylen;
 
@@ -137,7 +137,7 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf,
 {
 	struct page *page;
 	struct address_space *mapping = dev->blkdev->bd_inode->i_mapping;
-	int index = to >> PAGE_SHIFT;	// page index
+	pgoff_t index = to >> PAGE_SHIFT;	// page index
 	int offset = to & ~PAGE_MASK;	// page offset
 	int cpylen;
 

drivers/mtd/maps/pcmciamtd.c

@@ -294,24 +294,23 @@ static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *f
 }
 
 
-static DEFINE_SPINLOCK(pcmcia_vpp_lock);
+static DEFINE_MUTEX(pcmcia_vpp_lock);
 static int pcmcia_vpp_refcnt;
 static void pcmciamtd_set_vpp(struct map_info *map, int on)
 {
 	struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 	struct pcmcia_device *link = dev->p_dev;
-	unsigned long flags;
 
 	pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp);
-	spin_lock_irqsave(&pcmcia_vpp_lock, flags);
+	mutex_lock(&pcmcia_vpp_lock);
 	if (on) {
 		if (++pcmcia_vpp_refcnt == 1)   /* first nested 'on' */
 			pcmcia_fixup_vpp(link, dev->vpp);
 	} else {
 		if (--pcmcia_vpp_refcnt == 0)   /* last nested 'off' */
 			pcmcia_fixup_vpp(link, 0);
 	}
-	spin_unlock_irqrestore(&pcmcia_vpp_lock, flags);
+	mutex_unlock(&pcmcia_vpp_lock);
 }
 
 

drivers/mtd/maps/physmap-core.c

@@ -38,6 +38,7 @@
 #include <linux/mtd/cfi_endian.h>
 #include <linux/io.h>
 #include <linux/of_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/gpio/consumer.h>
 
 #include "physmap-gemini.h"
@@ -64,16 +65,16 @@ static int physmap_flash_remove(struct platform_device *dev)
 {
 	struct physmap_flash_info *info;
 	struct physmap_flash_data *physmap_data;
-	int i, err;
+	int i, err = 0;
 
 	info = platform_get_drvdata(dev);
 	if (!info)
-		return 0;
+		goto out;
 
 	if (info->cmtd) {
 		err = mtd_device_unregister(info->cmtd);
 		if (err)
-			return err;
+			goto out;
 
 		if (info->cmtd != info->mtds[0])
 			mtd_concat_destroy(info->cmtd);
@@ -88,7 +89,10 @@ static int physmap_flash_remove(struct platform_device *dev)
 	if (physmap_data && physmap_data->exit)
 		physmap_data->exit(dev);
 
-	return 0;
+out:
+	pm_runtime_put(&dev->dev);
+	pm_runtime_disable(&dev->dev);
+	return err;
 }
 
 static void physmap_set_vpp(struct map_info *map, int state)
@@ -484,13 +488,19 @@ static int physmap_flash_probe(struct platform_device *dev)
 		return -EINVAL;
 	}
 
+	pm_runtime_enable(&dev->dev);
+	pm_runtime_get_sync(&dev->dev);
+
 	if (dev->dev.of_node)
 		err = physmap_flash_of_init(dev);
 	else
 		err = physmap_flash_pdata_init(dev);
 
-	if (err)
+	if (err) {
+		pm_runtime_put(&dev->dev);
+		pm_runtime_disable(&dev->dev);
 		return err;
+	}
 
 	for (i = 0; i < info->nmaps; i++) {
 		struct resource *res;

drivers/mtd/mtdconcat.c

@@ -841,10 +841,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],	/* subdevices to c
 	return &concat->mtd;
 }
 
-/*
- * This function destroys an MTD object obtained from concat_mtd_devs()
- */
-
+/* Cleans the context obtained from mtd_concat_create() */
 void mtd_concat_destroy(struct mtd_info *mtd)
 {
 	struct mtd_concat *concat = CONCAT(mtd);

drivers/mtd/nand/onenand/Kconfig

@@ -25,20 +25,20 @@ config MTD_ONENAND_GENERIC
 
 config MTD_ONENAND_OMAP2
 	tristate "OneNAND on OMAP2/OMAP3 support"
-	depends on ARCH_OMAP2 || ARCH_OMAP3
+	depends on ARCH_OMAP2 || ARCH_OMAP3 || (COMPILE_TEST && ARM)
 	depends on OF || COMPILE_TEST
 	help
 	  Support for a OneNAND flash device connected to an OMAP2/OMAP3 SoC
 	  via the GPMC memory controller.
 	  Enable dmaengine and gpiolib for better performance.
 
 config MTD_ONENAND_SAMSUNG
-        tristate "OneNAND on Samsung SOC controller support"
-        depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS4
-        help
-          Support for a OneNAND flash device connected to an Samsung SOC.
-          S3C64XX uses command mapping method.
-          S5PC110/S5PC210 use generic OneNAND method.
+	tristate "OneNAND on Samsung SOC controller support"
+	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS4 || COMPILE_TEST
+	help
+	  Support for a OneNAND flash device connected to an Samsung SOC.
+	  S3C64XX uses command mapping method.
+	  S5PC110/S5PC210 use generic OneNAND method.
 
 config MTD_ONENAND_OTP
 	bool "OneNAND OTP Support"

drivers/mtd/nand/onenand/Makefile

@@ -8,7 +8,7 @@ obj-$(CONFIG_MTD_ONENAND)		+= onenand.o
 
 # Board specific.
 obj-$(CONFIG_MTD_ONENAND_GENERIC)	+= generic.o
-obj-$(CONFIG_MTD_ONENAND_OMAP2)		+= omap2.o
-obj-$(CONFIG_MTD_ONENAND_SAMSUNG)       += samsung_mtd.o
+obj-$(CONFIG_MTD_ONENAND_OMAP2)		+= onenand_omap2.o
+obj-$(CONFIG_MTD_ONENAND_SAMSUNG)       += onenand_samsung.o
 
 onenand-objs = onenand_base.o onenand_bbt.o

drivers/mtd/nand/onenand/onenand_base.c

@@ -1248,44 +1248,44 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
 
 	stats = mtd->ecc_stats;
 
- 	/* Read-while-load method */
+	/* Read-while-load method */
 
- 	/* Do first load to bufferRAM */
- 	if (read < len) {
- 		if (!onenand_check_bufferram(mtd, from)) {
+	/* Do first load to bufferRAM */
+	if (read < len) {
+		if (!onenand_check_bufferram(mtd, from)) {
 			this->command(mtd, ONENAND_CMD_READ, from, writesize);
- 			ret = this->wait(mtd, FL_READING);
- 			onenand_update_bufferram(mtd, from, !ret);
+			ret = this->wait(mtd, FL_READING);
+			onenand_update_bufferram(mtd, from, !ret);
 			if (mtd_is_eccerr(ret))
 				ret = 0;
- 		}
- 	}
+		}
+	}
 
 	thislen = min_t(int, writesize, len - read);
 	column = from & (writesize - 1);
 	if (column + thislen > writesize)
 		thislen = writesize - column;
 
- 	while (!ret) {
- 		/* If there is more to load then start next load */
- 		from += thislen;
- 		if (read + thislen < len) {
+	while (!ret) {
+		/* If there is more to load then start next load */
+		from += thislen;
+		if (read + thislen < len) {
 			this->command(mtd, ONENAND_CMD_READ, from, writesize);
- 			/*
- 			 * Chip boundary handling in DDP
- 			 * Now we issued chip 1 read and pointed chip 1
+			/*
+			 * Chip boundary handling in DDP
+			 * Now we issued chip 1 read and pointed chip 1
 			 * bufferram so we have to point chip 0 bufferram.
- 			 */
- 			if (ONENAND_IS_DDP(this) &&
- 			    unlikely(from == (this->chipsize >> 1))) {
- 				this->write_word(ONENAND_DDP_CHIP0, this->base + ONENAND_REG_START_ADDRESS2);
- 				boundary = 1;
- 			} else
- 				boundary = 0;
- 			ONENAND_SET_PREV_BUFFERRAM(this);
- 		}
- 		/* While load is going, read from last bufferRAM */
- 		this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
+			 */
+			if (ONENAND_IS_DDP(this) &&
+			    unlikely(from == (this->chipsize >> 1))) {
+				this->write_word(ONENAND_DDP_CHIP0, this->base + ONENAND_REG_START_ADDRESS2);
+				boundary = 1;
+			} else
+				boundary = 0;
+			ONENAND_SET_PREV_BUFFERRAM(this);
+		}
+		/* While load is going, read from last bufferRAM */
+		this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
 
 		/* Read oob area if needed */
 		if (oobbuf) {
@@ -1301,24 +1301,24 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
 			oobcolumn = 0;
 		}
 
- 		/* See if we are done */
- 		read += thislen;
- 		if (read == len)
- 			break;
- 		/* Set up for next read from bufferRAM */
- 		if (unlikely(boundary))
- 			this->write_word(ONENAND_DDP_CHIP1, this->base + ONENAND_REG_START_ADDRESS2);
- 		ONENAND_SET_NEXT_BUFFERRAM(this);
- 		buf += thislen;
+		/* See if we are done */
+		read += thislen;
+		if (read == len)
+			break;
+		/* Set up for next read from bufferRAM */
+		if (unlikely(boundary))
+			this->write_word(ONENAND_DDP_CHIP1, this->base + ONENAND_REG_START_ADDRESS2);
+		ONENAND_SET_NEXT_BUFFERRAM(this);
+		buf += thislen;
 		thislen = min_t(int, writesize, len - read);
- 		column = 0;
- 		cond_resched();
- 		/* Now wait for load */
- 		ret = this->wait(mtd, FL_READING);
- 		onenand_update_bufferram(mtd, from, !ret);
+		column = 0;
+		cond_resched();
+		/* Now wait for load */
+		ret = this->wait(mtd, FL_READING);
+		onenand_update_bufferram(mtd, from, !ret);
 		if (mtd_is_eccerr(ret))
 			ret = 0;
- 	}
+	}
 
 	/*
 	 * Return success, if no ECC failures, else -EBADMSG

drivers/mtd/nand/onenand/samsung_mtd.c → drivers/mtd/nand/onenand/onenand_samsung.c

@@ -248,7 +248,7 @@ static unsigned short s3c_onenand_readw(void __iomem *addr)
 	}
 
 	/* BootRAM access control */
-	if ((unsigned int) addr < ONENAND_DATARAM && onenand->bootram_command) {
+	if ((unsigned long)addr < ONENAND_DATARAM && onenand->bootram_command) {
 		if (word_addr == 0)
 			return s3c_read_reg(MANUFACT_ID_OFFSET);
 		if (word_addr == 1)
@@ -289,7 +289,7 @@ static void s3c_onenand_writew(unsigned short value, void __iomem *addr)
 	}
 
 	/* BootRAM access control */
-	if ((unsigned int)addr < ONENAND_DATARAM) {
+	if ((unsigned long)addr < ONENAND_DATARAM) {
 		if (value == ONENAND_CMD_READID) {
 			onenand->bootram_command = 1;
 			return;
@@ -658,7 +658,7 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
 		dma_dst = dma_map_single(dev, buf, count, DMA_FROM_DEVICE);
 	}
 	if (dma_mapping_error(dev, dma_dst)) {
-		dev_err(dev, "Couldn't map a %d byte buffer for DMA\n", count);
+		dev_err(dev, "Couldn't map a %zu byte buffer for DMA\n", count);
 		goto normal;
 	}
 	err = s5pc110_dma_ops(dma_dst, dma_src,
@@ -728,13 +728,12 @@ static void s3c_onenand_check_lock_status(struct mtd_info *mtd)
 	struct onenand_chip *this = mtd->priv;
 	struct device *dev = &onenand->pdev->dev;
 	unsigned int block, end;
-	int tmp;
 
 	end = this->chipsize >> this->erase_shift;
 
 	for (block = 0; block < end; block++) {
 		unsigned int mem_addr = onenand->mem_addr(block, 0, 0);
-		tmp = s3c_read_cmd(CMD_MAP_01(onenand, mem_addr));
+		s3c_read_cmd(CMD_MAP_01(onenand, mem_addr));
 
 		if (s3c_read_reg(INT_ERR_STAT_OFFSET) & LOCKED_BLK) {
 			dev_err(dev, "block %d is write-protected!\n", block);

drivers/mtd/nand/raw/Kconfig

@@ -452,7 +452,7 @@ config MTD_NAND_PLATFORM
 
 config MTD_NAND_CADENCE
 	tristate "Support Cadence NAND (HPNFC) controller"
-	depends on OF || COMPILE_TEST
+	depends on (OF || COMPILE_TEST) && HAS_IOMEM
 	help
 	  Enable the driver for NAND flash on platforms using a Cadence NAND
 	  controller.

drivers/mtd/nand/raw/atmel/nand-controller.c

@@ -1578,9 +1578,8 @@ static struct atmel_nand *atmel_nand_create(struct atmel_nand_controller *nc,
 
 	nand->numcs = numcs;
 
-	gpio = devm_fwnode_get_index_gpiod_from_child(nc->dev, "det", 0,
-						      &np->fwnode, GPIOD_IN,
-						      "nand-det");
+	gpio = devm_fwnode_gpiod_get(nc->dev, of_fwnode_handle(np),
+				     "det", GPIOD_IN, "nand-det");
 	if (IS_ERR(gpio) && PTR_ERR(gpio) != -ENOENT) {
 		dev_err(nc->dev,
 			"Failed to get detect gpio (err = %ld)\n",
@@ -1624,9 +1623,10 @@ static struct atmel_nand *atmel_nand_create(struct atmel_nand_controller *nc,
 			nand->cs[i].rb.type = ATMEL_NAND_NATIVE_RB;
 			nand->cs[i].rb.id = val;
 		} else {
-			gpio = devm_fwnode_get_index_gpiod_from_child(nc->dev,
-							"rb", i, &np->fwnode,
-							GPIOD_IN, "nand-rb");
+			gpio = devm_fwnode_gpiod_get_index(nc->dev,
+							   of_fwnode_handle(np),
+							   "rb", i, GPIOD_IN,
+							   "nand-rb");
 			if (IS_ERR(gpio) && PTR_ERR(gpio) != -ENOENT) {
 				dev_err(nc->dev,
 					"Failed to get R/B gpio (err = %ld)\n",
@@ -1640,10 +1640,10 @@ static struct atmel_nand *atmel_nand_create(struct atmel_nand_controller *nc,
 			}
 		}
 
-		gpio = devm_fwnode_get_index_gpiod_from_child(nc->dev, "cs",
-							      i, &np->fwnode,
-							      GPIOD_OUT_HIGH,
-							      "nand-cs");
+		gpio = devm_fwnode_gpiod_get_index(nc->dev,
+						   of_fwnode_handle(np),
+						   "cs", i, GPIOD_OUT_HIGH,
+						   "nand-cs");
 		if (IS_ERR(gpio) && PTR_ERR(gpio) != -ENOENT) {
 			dev_err(nc->dev,
 				"Failed to get CS gpio (err = %ld)\n",