openwrtv3/target/linux/brcm63xx/patches-4.4/000-4.5-06-mtd-nand-drop-unnecessary-partition-parser-data.patch

From a61ae81a1907af1987ad4c77300508327bc48b23 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:25 -0700
Subject: [PATCH 06/11] mtd: nand: drop unnecessary partition parser data

All of these drivers set up a parser data struct just to communicate DT
partition data. This field has been deprecated and is instead supported
by telling nand_scan_ident() about the 'flash_node'.

This patch:
 * sets chip->flash_node for those drivers that didn't already (but used
   OF partitioning)
 * drops the parser data
 * switches to the simpler mtd_device_register() where possible, now
   that we've eliminated one of the auxiliary parameters

Now that we've assigned chip->flash_node for these drivers, we can
probably rely on nand_dt_init() to do more of the DT parsing for us, but
for now, I don't want to fiddle with each of these drivers. The parsing
is done in duplicate for now on some drivers. I don't think this should
break things. (Famous last words.)

(Rolled in some changes by Boris Brezillon)

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
 drivers/mtd/nand/atmel_nand.c                 |  7 +++----
 drivers/mtd/nand/brcmnand/brcmnand.c          |  3 +--
 drivers/mtd/nand/davinci_nand.c               | 10 +++-------
 drivers/mtd/nand/fsl_elbc_nand.c              |  5 ++---
 drivers/mtd/nand/fsl_ifc_nand.c               |  5 ++---
 drivers/mtd/nand/fsl_upm.c                    |  5 ++---
 drivers/mtd/nand/fsmc_nand.c                  |  7 +++----
 drivers/mtd/nand/gpio.c                       |  8 +++-----
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c        |  5 ++---
 drivers/mtd/nand/hisi504_nand.c               |  5 ++---
 drivers/mtd/nand/lpc32xx_mlc.c                |  7 +++----
 drivers/mtd/nand/lpc32xx_slc.c                |  7 +++----
 drivers/mtd/nand/mpc5121_nfc.c                |  5 ++---
 drivers/mtd/nand/mxc_nand.c                   |  5 ++---
 drivers/mtd/nand/ndfc.c                       |  5 ++---
 drivers/mtd/nand/omap2.c                      |  6 ++----
 drivers/mtd/nand/orion_nand.c                 |  6 ++----
 drivers/mtd/nand/plat_nand.c                  |  5 ++---
 drivers/mtd/nand/pxa3xx_nand.c                | 10 +++++-----
 drivers/mtd/nand/sh_flctl.c                   |  6 ++----
 drivers/mtd/nand/socrates_nand.c              |  5 ++---
 drivers/mtd/nand/sunxi_nand.c                 |  4 +---
 drivers/mtd/nand/vf610_nfc.c                  |  6 +-----
 drivers/staging/mt29f_spinand/mt29f_spinand.c |  5 ++---
 24 files changed, 54 insertions(+), 88 deletions(-)

--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -2093,7 +2093,6 @@ static int atmel_nand_probe(struct platf
 	struct mtd_info *mtd;
 	struct nand_chip *nand_chip;
 	struct resource *mem;
-	struct mtd_part_parser_data ppdata = {};
 	int res, irq;
 
 	/* Allocate memory for the device structure (and zero it) */
@@ -2117,6 +2116,7 @@ static int atmel_nand_probe(struct platf
 	nand_chip = &host->nand_chip;
 	host->dev = &pdev->dev;
 	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+		nand_set_flash_node(nand_chip, pdev->dev.of_node);
 		/* Only when CONFIG_OF is enabled of_node can be parsed */
 		res = atmel_of_init_port(host, pdev->dev.of_node);
 		if (res)
@@ -2259,9 +2259,8 @@ static int atmel_nand_probe(struct platf
 	}
 
 	mtd->name = "atmel_nand";
-	ppdata.of_node = pdev->dev.of_node;
-	res = mtd_device_parse_register(mtd, NULL, &ppdata,
-			host->board.parts, host->board.num_parts);
+	res = mtd_device_register(mtd, host->board.parts,
+				  host->board.num_parts);
 	if (!res)
 		return res;
 
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1939,7 +1939,6 @@ static int brcmnand_init_cs(struct brcmn
 	struct nand_chip *chip;
 	int ret;
 	u16 cfg_offs;
-	struct mtd_part_parser_data ppdata = { .of_node = dn };
 
 	ret = of_property_read_u32(dn, "reg", &host->cs);
 	if (ret) {
@@ -2018,7 +2017,7 @@ static int brcmnand_init_cs(struct brcmn
 	if (nand_scan_tail(mtd))
 		return -ENXIO;
 
-	return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	return mtd_device_register(mtd, NULL, 0);
 }
 
 static void brcmnand_save_restore_cs_config(struct brcmnand_host *host,
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -687,6 +687,7 @@ static int nand_davinci_probe(struct pla
 
 	info->mtd.priv		= &info->chip;
 	info->mtd.dev.parent	= &pdev->dev;
+	nand_set_flash_node(&info->chip, pdev->dev.of_node);
 
 	info->chip.IO_ADDR_R	= vaddr;
 	info->chip.IO_ADDR_W	= vaddr;
@@ -842,13 +843,8 @@ syndrome_done:
 	if (pdata->parts)
 		ret = mtd_device_parse_register(&info->mtd, NULL, NULL,
 					pdata->parts, pdata->nr_parts);
-	else {
-		struct mtd_part_parser_data	ppdata;
-
-		ppdata.of_node = pdev->dev.of_node;
-		ret = mtd_device_parse_register(&info->mtd, NULL, &ppdata,
-						NULL, 0);
-	}
+	else
+		ret = mtd_device_register(&info->mtd, NULL, 0);
 	if (ret < 0)
 		goto err;
 
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -748,6 +748,7 @@ static int fsl_elbc_chip_init(struct fsl
 	/* Fill in fsl_elbc_mtd structure */
 	priv->mtd.priv = chip;
 	priv->mtd.dev.parent = priv->dev;
+	nand_set_flash_node(chip, priv->dev->of_node);
 
 	/* set timeout to maximum */
 	priv->fmr = 15 << FMR_CWTO_SHIFT;
@@ -823,9 +824,7 @@ static int fsl_elbc_nand_probe(struct pl
 	int bank;
 	struct device *dev;
 	struct device_node *node = pdev->dev.of_node;
-	struct mtd_part_parser_data ppdata;
 
-	ppdata.of_node = pdev->dev.of_node;
 	if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs)
 		return -ENODEV;
 	lbc = fsl_lbc_ctrl_dev->regs;
@@ -911,7 +910,7 @@ static int fsl_elbc_nand_probe(struct pl
 
 	/* First look for RedBoot table or partitions on the command
 	 * line, these take precedence over device tree information */
-	mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata,
+	mtd_device_parse_register(&priv->mtd, part_probe_types, NULL,
 				  NULL, 0);
 
 	printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n",
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -883,6 +883,7 @@ static int fsl_ifc_chip_init(struct fsl_
 	/* Fill in fsl_ifc_mtd structure */
 	priv->mtd.priv = chip;
 	priv->mtd.dev.parent = priv->dev;
+	nand_set_flash_node(chip, priv->dev->of_node);
 
 	/* fill in nand_chip structure */
 	/* set up function call table */
@@ -1030,9 +1031,7 @@ static int fsl_ifc_nand_probe(struct pla
 	int ret;
 	int bank;
 	struct device_node *node = dev->dev.of_node;
-	struct mtd_part_parser_data ppdata;
 
-	ppdata.of_node = dev->dev.of_node;
 	if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs)
 		return -ENODEV;
 	ifc = fsl_ifc_ctrl_dev->regs;
@@ -1128,7 +1127,7 @@ static int fsl_ifc_nand_probe(struct pla
 
 	/* First look for RedBoot table or partitions on the command
 	 * line, these take precedence over device tree information */
-	mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata,
+	mtd_device_parse_register(&priv->mtd, part_probe_types, NULL,
 						NULL, 0);
 
 	dev_info(priv->dev, "IFC NAND device at 0x%llx, bank %d\n",
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -159,7 +159,6 @@ static int fun_chip_init(struct fsl_upm_
 {
 	int ret;
 	struct device_node *flash_np;
-	struct mtd_part_parser_data ppdata;
 
 	fun->chip.IO_ADDR_R = fun->io_base;
 	fun->chip.IO_ADDR_W = fun->io_base;
@@ -182,6 +181,7 @@ static int fun_chip_init(struct fsl_upm_
 	if (!flash_np)
 		return -ENODEV;
 
+	nand_set_flash_node(&fun->chip, flash_np);
 	fun->mtd.name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start,
 				  flash_np->name);
 	if (!fun->mtd.name) {
@@ -193,8 +193,7 @@ static int fun_chip_init(struct fsl_upm_
 	if (ret)
 		goto err;
 
-	ppdata.of_node = flash_np;
-	ret = mtd_device_parse_register(&fun->mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(&fun->mtd, NULL, 0);
 err:
 	of_node_put(flash_np);
 	if (ret)
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -926,7 +926,6 @@ static int __init fsmc_nand_probe(struct
 {
 	struct fsmc_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct device_node __maybe_unused *np = pdev->dev.of_node;
-	struct mtd_part_parser_data ppdata = {};
 	struct fsmc_nand_data *host;
 	struct mtd_info *mtd;
 	struct nand_chip *nand;
@@ -1016,6 +1015,7 @@ static int __init fsmc_nand_probe(struct
 	nand = &host->nand;
 	mtd->priv = nand;
 	nand->priv = host;
+	nand_set_flash_node(nand, np);
 
 	host->mtd.dev.parent = &pdev->dev;
 	nand->IO_ADDR_R = host->data_va;
@@ -1175,9 +1175,8 @@ static int __init fsmc_nand_probe(struct
 	 * Check for partition info passed
 	 */
 	host->mtd.name = "nand";
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(&host->mtd, NULL, &ppdata,
-					host->partitions, host->nr_partitions);
+	ret = mtd_device_register(&host->mtd, host->partitions,
+				  host->nr_partitions);
 	if (ret)
 		goto err_probe;
 
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -209,7 +209,6 @@ static int gpio_nand_probe(struct platfo
 	struct gpiomtd *gpiomtd;
 	struct nand_chip *chip;
 	struct resource *res;
-	struct mtd_part_parser_data ppdata = {};
 	int ret = 0;
 
 	if (!pdev->dev.of_node && !dev_get_platdata(&pdev->dev))
@@ -268,6 +267,7 @@ static int gpio_nand_probe(struct platfo
 		chip->dev_ready = gpio_nand_devready;
 	}
 
+	nand_set_flash_node(chip, pdev->dev.of_node);
 	chip->IO_ADDR_W		= chip->IO_ADDR_R;
 	chip->ecc.mode		= NAND_ECC_SOFT;
 	chip->options		= gpiomtd->plat.options;
@@ -291,10 +291,8 @@ static int gpio_nand_probe(struct platfo
 		gpiomtd->plat.adjust_parts(&gpiomtd->plat,
 					   gpiomtd->mtd_info.size);
 
-	ppdata.of_node = pdev->dev.of_node;
-	ret = mtd_device_parse_register(&gpiomtd->mtd_info, NULL, &ppdata,
-					gpiomtd->plat.parts,
-					gpiomtd->plat.num_parts);
+	ret = mtd_device_register(&gpiomtd->mtd_info, gpiomtd->plat.parts,
+				  gpiomtd->plat.num_parts);
 	if (!ret)
 		return 0;
 
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1888,7 +1888,6 @@ static int gpmi_nand_init(struct gpmi_na
 {
 	struct mtd_info  *mtd = &this->mtd;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_part_parser_data ppdata = {};
 	int ret;
 
 	/* init current chip */
@@ -1901,6 +1900,7 @@ static int gpmi_nand_init(struct gpmi_na
 
 	/* init the nand_chip{}, we don't support a 16-bit NAND Flash bus. */
 	chip->priv		= this;
+	nand_set_flash_node(chip, this->pdev->dev.of_node);
 	chip->select_chip	= gpmi_select_chip;
 	chip->cmd_ctrl		= gpmi_cmd_ctrl;
 	chip->dev_ready		= gpmi_dev_ready;
@@ -1954,8 +1954,7 @@ static int gpmi_nand_init(struct gpmi_na
 	if (ret)
 		goto err_out;
 
-	ppdata.of_node = this->pdev->dev.of_node;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret)
 		goto err_out;
 	return 0;
--- a/drivers/mtd/nand/hisi504_nand.c
+++ b/drivers/mtd/nand/hisi504_nand.c
@@ -704,7 +704,6 @@ static int hisi_nfc_probe(struct platfor
 	struct mtd_info   *mtd;
 	struct resource	  *res;
 	struct device_node *np = dev->of_node;
-	struct mtd_part_parser_data ppdata;
 
 	host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
 	if (!host)
@@ -742,6 +741,7 @@ static int hisi_nfc_probe(struct platfor
 	mtd->dev.parent         = &pdev->dev;
 
 	chip->priv		= host;
+	nand_set_flash_node(chip, np);
 	chip->cmdfunc		= hisi_nfc_cmdfunc;
 	chip->select_chip	= hisi_nfc_select_chip;
 	chip->read_byte		= hisi_nfc_read_byte;
@@ -805,8 +805,7 @@ static int hisi_nfc_probe(struct platfor
 		goto err_res;
 	}
 
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(dev, "Err MTD partition=%d\n", ret);
 		goto err_mtd;
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -647,7 +647,6 @@ static int lpc32xx_nand_probe(struct pla
 	struct nand_chip *nand_chip;
 	struct resource *rc;
 	int res;
-	struct mtd_part_parser_data ppdata = {};
 
 	/* Allocate memory for the device structure (and zero it) */
 	host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
@@ -682,6 +681,7 @@ static int lpc32xx_nand_probe(struct pla
 	host->pdata = dev_get_platdata(&pdev->dev);
 
 	nand_chip->priv = host;		/* link the private data structures */
+	nand_set_flash_node(nand_chip, pdev->dev.of_node);
 	mtd->priv = nand_chip;
 	mtd->dev.parent = &pdev->dev;
 
@@ -786,9 +786,8 @@ static int lpc32xx_nand_probe(struct pla
 
 	mtd->name = DRV_NAME;
 
-	ppdata.of_node = pdev->dev.of_node;
-	res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts,
-					host->ncfg->num_parts);
+	res = mtd_device_register(mtd, host->ncfg->parts,
+				  host->ncfg->num_parts);
 	if (!res)
 		return res;
 
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -763,7 +763,6 @@ static int lpc32xx_nand_probe(struct pla
 	struct mtd_info *mtd;
 	struct nand_chip *chip;
 	struct resource *rc;
-	struct mtd_part_parser_data ppdata = {};
 	int res;
 
 	rc = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -803,6 +802,7 @@ static int lpc32xx_nand_probe(struct pla
 	mtd = &host->mtd;
 	chip = &host->nand_chip;
 	chip->priv = host;
+	nand_set_flash_node(chip, pdev->dev.of_node);
 	mtd->priv = chip;
 	mtd->owner = THIS_MODULE;
 	mtd->dev.parent = &pdev->dev;
@@ -908,9 +908,8 @@ static int lpc32xx_nand_probe(struct pla
 	}
 
 	mtd->name = "nxp_lpc3220_slc";
-	ppdata.of_node = pdev->dev.of_node;
-	res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts,
-					host->ncfg->num_parts);
+	res = mtd_device_register(mtd, host->ncfg->parts,
+				  host->ncfg->num_parts);
 	if (!res)
 		return res;
 
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -639,7 +639,6 @@ static int mpc5121_nfc_probe(struct plat
 	int resettime = 0;
 	int retval = 0;
 	int rev, len;
-	struct mtd_part_parser_data ppdata;
 
 	/*
 	 * Check SoC revision. This driver supports only NFC
@@ -661,6 +660,7 @@ static int mpc5121_nfc_probe(struct plat
 	mtd->priv = chip;
 	mtd->dev.parent = dev;
 	chip->priv = prv;
+	nand_set_flash_node(chip, dn);
 	prv->dev = dev;
 
 	/* Read NFC configuration from Reset Config Word */
@@ -703,7 +703,6 @@ static int mpc5121_nfc_probe(struct plat
 	}
 
 	mtd->name = "MPC5121 NAND";
-	ppdata.of_node = dn;
 	chip->dev_ready = mpc5121_nfc_dev_ready;
 	chip->cmdfunc = mpc5121_nfc_command;
 	chip->read_byte = mpc5121_nfc_read_byte;
@@ -815,7 +814,7 @@ static int mpc5121_nfc_probe(struct plat
 	dev_set_drvdata(dev, mtd);
 
 	/* Register device in MTD */
-	retval = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	retval = mtd_device_register(mtd, NULL, 0);
 	if (retval) {
 		dev_err(dev, "Error adding MTD device!\n");
 		goto error;
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1524,6 +1524,7 @@ static int mxcnd_probe(struct platform_d
 	this->chip_delay = 5;
 
 	this->priv = host;
+	nand_set_flash_node(this, pdev->dev.of_node),
 	this->dev_ready = mxc_nand_dev_ready;
 	this->cmdfunc = mxc_nand_command;
 	this->read_byte = mxc_nand_read_byte;
@@ -1683,9 +1684,7 @@ static int mxcnd_probe(struct platform_d
 
 	/* Register the partitions */
 	mtd_device_parse_register(mtd, part_probes,
-			&(struct mtd_part_parser_data){
-				.of_node = pdev->dev.of_node,
-			},
+			NULL,
 			host->pdata.parts,
 			host->pdata.nr_parts);
 
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -147,7 +147,6 @@ static int ndfc_chip_init(struct ndfc_co
 {
 	struct device_node *flash_np;
 	struct nand_chip *chip = &ndfc->chip;
-	struct mtd_part_parser_data ppdata;
 	int ret;
 
 	chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA;
@@ -174,8 +173,8 @@ static int ndfc_chip_init(struct ndfc_co
 	flash_np = of_get_next_child(node, NULL);
 	if (!flash_np)
 		return -ENODEV;
+	nand_set_flash_node(chip, flash_np);
 
-	ppdata.of_node = flash_np;
 	ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s",
 			dev_name(&ndfc->ofdev->dev), flash_np->name);
 	if (!ndfc->mtd.name) {
@@ -187,7 +186,7 @@ static int ndfc_chip_init(struct ndfc_co
 	if (ret)
 		goto err;
 
-	ret = mtd_device_parse_register(&ndfc->mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(&ndfc->mtd, NULL, 0);
 
 err:
 	of_node_put(flash_np);
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1663,7 +1663,6 @@ static int omap_nand_probe(struct platfo
 	unsigned			sig;
 	unsigned			oob_index;
 	struct resource			*res;
-	struct mtd_part_parser_data	ppdata = {};
 
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata == NULL) {
@@ -1688,6 +1687,7 @@ static int omap_nand_probe(struct platfo
 	mtd->dev.parent		= &pdev->dev;
 	nand_chip		= &info->nand;
 	nand_chip->ecc.priv	= NULL;
+	nand_set_flash_node(nand_chip, pdata->of_node);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	nand_chip->IO_ADDR_R = devm_ioremap_resource(&pdev->dev, res);
@@ -2037,9 +2037,7 @@ scan_tail:
 		goto return_error;
 	}
 
-	ppdata.of_node = pdata->of_node;
-	mtd_device_parse_register(mtd, NULL, &ppdata, pdata->parts,
-				  pdata->nr_parts);
+	mtd_device_register(mtd, pdata->parts, pdata->nr_parts);
 
 	platform_set_drvdata(pdev, mtd);
 
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -76,7 +76,6 @@ static void orion_nand_read_buf(struct m
 static int __init orion_nand_probe(struct platform_device *pdev)
 {
 	struct mtd_info *mtd;
-	struct mtd_part_parser_data ppdata = {};
 	struct nand_chip *nc;
 	struct orion_nand_data *board;
 	struct resource *res;
@@ -127,6 +126,7 @@ static int __init orion_nand_probe(struc
 	mtd->dev.parent = &pdev->dev;
 
 	nc->priv = board;
+	nand_set_flash_node(nc, pdev->dev.of_node);
 	nc->IO_ADDR_R = nc->IO_ADDR_W = io_base;
 	nc->cmd_ctrl = orion_nand_cmd_ctrl;
 	nc->read_buf = orion_nand_read_buf;
@@ -161,9 +161,7 @@ static int __init orion_nand_probe(struc
 	}
 
 	mtd->name = "orion_nand";
-	ppdata.of_node = pdev->dev.of_node;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata,
-			board->parts, board->nr_parts);
+	ret = mtd_device_register(mtd, board->parts, board->nr_parts);
 	if (ret) {
 		nand_release(mtd);
 		goto no_dev;
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -30,7 +30,6 @@ struct plat_nand_data {
 static int plat_nand_probe(struct platform_device *pdev)
 {
 	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
-	struct mtd_part_parser_data ppdata;
 	struct plat_nand_data *data;
 	struct resource *res;
 	const char **part_types;
@@ -58,6 +57,7 @@ static int plat_nand_probe(struct platfo
 		return PTR_ERR(data->io_base);
 
 	data->chip.priv = &data;
+	nand_set_flash_node(&data->chip, pdev->dev.of_node);
 	data->mtd.priv = &data->chip;
 	data->mtd.dev.parent = &pdev->dev;
 
@@ -105,8 +105,7 @@ static int plat_nand_probe(struct platfo
 
 	part_types = pdata->chip.part_probe_types;
 
-	ppdata.of_node = pdev->dev.of_node;
-	err = mtd_device_parse_register(&data->mtd, part_types, &ppdata,
+	err = mtd_device_parse_register(&data->mtd, part_types, NULL,
 					pdata->chip.partitions,
 					pdata->chip.nr_partitions);
 
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1697,6 +1697,7 @@ KEEP_CONFIG:
 
 static int alloc_nand_resource(struct platform_device *pdev)
 {
+	struct device_node *np = pdev->dev.of_node;
 	struct pxa3xx_nand_platform_data *pdata;
 	struct pxa3xx_nand_info *info;
 	struct pxa3xx_nand_host *host;
@@ -1725,6 +1726,8 @@ static int alloc_nand_resource(struct pl
 		host->info_data = info;
 		mtd->priv = host;
 		mtd->dev.parent = &pdev->dev;
+		/* FIXME: all chips use the same device tree partitions */
+		nand_set_flash_node(chip, np);
 
 		chip->ecc.read_page	= pxa3xx_nand_read_page_hwecc;
 		chip->ecc.write_page	= pxa3xx_nand_write_page_hwecc;
@@ -1886,7 +1889,6 @@ static int pxa3xx_nand_probe_dt(struct p
 static int pxa3xx_nand_probe(struct platform_device *pdev)
 {
 	struct pxa3xx_nand_platform_data *pdata;
-	struct mtd_part_parser_data ppdata = {};
 	struct pxa3xx_nand_info *info;
 	int ret, cs, probe_success, dma_available;
 
@@ -1933,10 +1935,8 @@ static int pxa3xx_nand_probe(struct plat
 			continue;
 		}
 
-		ppdata.of_node = pdev->dev.of_node;
-		ret = mtd_device_parse_register(mtd, NULL,
-						&ppdata, pdata->parts[cs],
-						pdata->nr_parts[cs]);
+		ret = mtd_device_register(mtd, pdata->parts[cs],
+					  pdata->nr_parts[cs]);
 		if (!ret)
 			probe_success = 1;
 	}
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -1086,7 +1086,6 @@ static int flctl_probe(struct platform_d
 	struct sh_flctl_platform_data *pdata;
 	int ret;
 	int irq;
-	struct mtd_part_parser_data ppdata = {};
 
 	flctl = devm_kzalloc(&pdev->dev, sizeof(struct sh_flctl), GFP_KERNEL);
 	if (!flctl)
@@ -1124,6 +1123,7 @@ static int flctl_probe(struct platform_d
 	platform_set_drvdata(pdev, flctl);
 	flctl_mtd = &flctl->mtd;
 	nand = &flctl->chip;
+	nand_set_flash_node(nand, pdev->dev.of_node);
 	flctl_mtd->priv = nand;
 	flctl_mtd->dev.parent = &pdev->dev;
 	flctl->pdev = pdev;
@@ -1164,9 +1164,7 @@ static int flctl_probe(struct platform_d
 	if (ret)
 		goto err_chip;
 
-	ppdata.of_node = pdev->dev.of_node;
-	ret = mtd_device_parse_register(flctl_mtd, NULL, &ppdata, pdata->parts,
-			pdata->nr_parts);
+	ret = mtd_device_register(flctl_mtd, pdata->parts, pdata->nr_parts);
 
 	return 0;
 
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -147,7 +147,6 @@ static int socrates_nand_probe(struct pl
 	struct mtd_info *mtd;
 	struct nand_chip *nand_chip;
 	int res;
-	struct mtd_part_parser_data ppdata;
 
 	/* Allocate memory for the device structure (and zero it) */
 	host = devm_kzalloc(&ofdev->dev, sizeof(*host), GFP_KERNEL);
@@ -165,10 +164,10 @@ static int socrates_nand_probe(struct pl
 	host->dev = &ofdev->dev;
 
 	nand_chip->priv = host;		/* link the private data structures */
+	nand_set_flash_node(nand_chip, ofdev->dev.of_node);
 	mtd->priv = nand_chip;
 	mtd->name = "socrates_nand";
 	mtd->dev.parent = &ofdev->dev;
-	ppdata.of_node = ofdev->dev.of_node;
 
 	/*should never be accessed directly */
 	nand_chip->IO_ADDR_R = (void *)0xdeadbeef;
@@ -200,7 +199,7 @@ static int socrates_nand_probe(struct pl
 		goto out;
 	}
 
-	res = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	res = mtd_device_register(mtd, NULL, 0);
 	if (!res)
 		return res;
 
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -1238,7 +1238,6 @@ static int sunxi_nand_chip_init(struct d
 {
 	const struct nand_sdr_timings *timings;
 	struct sunxi_nand_chip *chip;
-	struct mtd_part_parser_data ppdata;
 	struct mtd_info *mtd;
 	struct nand_chip *nand;
 	int nsels;
@@ -1372,8 +1371,7 @@ static int sunxi_nand_chip_init(struct d
 		return ret;
 	}
 
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(dev, "failed to register mtd device: %d\n", ret);
 		nand_release(mtd);
--- a/drivers/mtd/nand/vf610_nfc.c
+++ b/drivers/mtd/nand/vf610_nfc.c
@@ -811,11 +811,7 @@ static int vf610_nfc_probe(struct platfo
 	platform_set_drvdata(pdev, mtd);
 
 	/* Register device in MTD */
-	return mtd_device_parse_register(mtd, NULL,
-		&(struct mtd_part_parser_data){
-			.of_node = chip->flash_node,
-		},
-		NULL, 0);
+	return mtd_device_register(mtd, NULL, 0);
 
 error:
 	of_node_put(chip->flash_node);
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -850,7 +850,6 @@ static int spinand_probe(struct spi_devi
 	struct nand_chip *chip;
 	struct spinand_info *info;
 	struct spinand_state *state;
-	struct mtd_part_parser_data ppdata;
 
 	info  = devm_kzalloc(&spi_nand->dev, sizeof(struct spinand_info),
 			     GFP_KERNEL);
@@ -894,6 +893,7 @@ static int spinand_probe(struct spi_devi
 		pr_info("%s: disable ecc failed!\n", __func__);
 #endif
 
+	nand_set_flash_node(chip, spi_nand->dev.of_node);
 	chip->priv	= info;
 	chip->read_buf	= spinand_read_buf;
 	chip->write_buf	= spinand_write_buf;
@@ -916,8 +916,7 @@ static int spinand_probe(struct spi_devi
 	if (nand_scan(mtd, 1))
 		return -ENXIO;
 
-	ppdata.of_node = spi_nand->dev.of_node;
-	return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	return mtd_device_register(mtd, NULL, 0);
 }
 
 /*