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Commit 063294a3 authored by Boris Brezillon's avatar Boris Brezillon Committed by Brian Norris
Browse files

mtd: nand: pxa3xx: use the mtd instance embedded in struct nand_chip 



struct nand_chip now embeds an mtd device. Make use of this mtd instance.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent a0260d21

drivers/mtd/nand/pxa3xx_nand.c

+17 −16
Original line number Diff line number Diff line
@@ -167,7 +167,6 @@ enum pxa3xx_nand_variant { 


struct pxa3xx_nand_host {

	struct nand_chip	chip;

	struct mtd_info         *mtd;

	void			*info_data;



	/* page size of attached chip */
@@ -450,14 +449,15 @@ static int pxa3xx_nand_init_timings_compat(struct pxa3xx_nand_host *host, 
	struct nand_chip *chip = &host->chip;

	struct pxa3xx_nand_info *info = host->info_data;

	const struct pxa3xx_nand_flash *f = NULL;

	struct mtd_info *mtd = nand_to_mtd(&host->chip);

	int i, id, ntypes;



	ntypes = ARRAY_SIZE(builtin_flash_types);



	chip->cmdfunc(host->mtd, NAND_CMD_READID, 0x00, -1);

	chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);



	id = chip->read_byte(host->mtd);

	id |= chip->read_byte(host->mtd) << 0x8;

	id = chip->read_byte(mtd);

	id |= chip->read_byte(mtd) << 0x8;



	for (i = 0; i < ntypes; i++) {

		f = &builtin_flash_types[i];
@@ -890,7 +890,7 @@ static void set_command_address(struct pxa3xx_nand_info *info, 
static void prepare_start_command(struct pxa3xx_nand_info *info, int command)

{

	struct pxa3xx_nand_host *host = info->host[info->cs];

	struct mtd_info *mtd = host->mtd;

	struct mtd_info *mtd = nand_to_mtd(&host->chip);



	/* reset data and oob column point to handle data */

	info->buf_start		= 0;
@@ -943,7 +943,7 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command, 
	struct mtd_info *mtd;



	host = info->host[info->cs];

	mtd = host->mtd;

	mtd = nand_to_mtd(&host->chip);

	addr_cycle = 0;

	exec_cmd = 1;
@@ -1415,8 +1415,8 @@ static int pxa3xx_nand_config_ident(struct pxa3xx_nand_info *info) 
static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info)

{

	struct pxa3xx_nand_host *host = info->host[info->cs];

	struct mtd_info *mtd = host->mtd;

	struct nand_chip *chip = mtd_to_nand(mtd);

	struct nand_chip *chip = &host->chip;

	struct mtd_info *mtd = nand_to_mtd(chip);



	info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0;

	info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0;
@@ -1693,19 +1693,20 @@ static int alloc_nand_resource(struct platform_device *pdev) 
	pdata = dev_get_platdata(&pdev->dev);

	if (pdata->num_cs <= 0)

		return -ENODEV;

	info = devm_kzalloc(&pdev->dev, sizeof(*info) + (sizeof(*mtd) +

			    sizeof(*host)) * pdata->num_cs, GFP_KERNEL);

	info = devm_kzalloc(&pdev->dev,

			    sizeof(*info) + sizeof(*host) * pdata->num_cs,

			    GFP_KERNEL);

	if (!info)

		return -ENOMEM;



	info->pdev = pdev;

	info->variant = pxa3xx_nand_get_variant(pdev);

	for (cs = 0; cs < pdata->num_cs; cs++) {

		mtd = (void *)&info[1] + (sizeof(*mtd) + sizeof(*host)) * cs;

		chip = (struct nand_chip *)(&mtd[1]);

		host = (struct pxa3xx_nand_host *)chip;

		host = (void *)&info[1] + sizeof(*host) * cs;

		chip = &host->chip;

		chip->priv = host;

		mtd = nand_to_mtd(chip);

		info->host[cs] = host;

		host->mtd = mtd;

		host->cs = cs;

		host->info_data = info;

		mtd->priv = chip;
@@ -1833,7 +1834,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) 
	clk_disable_unprepare(info->clk);



	for (cs = 0; cs < pdata->num_cs; cs++)

		nand_release(info->host[cs]->mtd);

		nand_release(nand_to_mtd(&info->host[cs]->chip));

	return 0;

}
@@ -1904,7 +1905,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) 
	info = platform_get_drvdata(pdev);

	probe_success = 0;

	for (cs = 0; cs < pdata->num_cs; cs++) {

		struct mtd_info *mtd = info->host[cs]->mtd;

		struct mtd_info *mtd = nand_to_mtd(&info->host[cs]->chip);



		/*

		 * The mtd name matches the one used in 'mtdparts' kernel