Commit 972edcb7 authored by Vitaly Wool's avatar Vitaly Wool Committed by David Woodhouse
Browse files

[MTD] [NAND] platform NAND driver: update header 



This patch extends nand.h in order to enable platform NAND driver.

Signed-off-by: default avatarVitaly Wool <vitalywool@gmail.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
parent 1c979645

include/linux/mtd/nand.h

+16 −0
Original line number Diff line number Diff line
@@ -560,6 +560,7 @@ extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len, 
 * @chip_delay:		R/B delay value in us

 * @options:		Option flags, e.g. 16bit buswidth

 * @ecclayout:		ecc layout info structure

 * @part_probe_types:	NULL-terminated array of probe types

 * @priv:		hardware controller specific settings

 */

struct platform_nand_chip {
@@ -570,6 +571,7 @@ struct platform_nand_chip { 
	struct nand_ecclayout	*ecclayout;

	int			chip_delay;

	unsigned int		options;

	const char		**part_probe_types;

	void			*priv;

};
@@ -578,6 +580,8 @@ struct platform_nand_chip { 
 * @hwcontrol:		platform specific hardware control structure

 * @dev_ready:		platform specific function to read ready/busy pin

 * @select_chip:	platform specific chip select function

 * @cmd_ctrl:		platform specific function for controlling

 *			ALE/CLE/nCE. Also used to write command and address

 * @priv:		private data to transport driver specific settings

 *

 * All fields are optional and depend on the hardware driver requirements
@@ -586,9 +590,21 @@ struct platform_nand_ctrl { 
	void		(*hwcontrol)(struct mtd_info *mtd, int cmd);

	int		(*dev_ready)(struct mtd_info *mtd);

	void		(*select_chip)(struct mtd_info *mtd, int chip);

	void		(*cmd_ctrl)(struct mtd_info *mtd, int dat,

				    unsigned int ctrl);

	void		*priv;

};



/**

 * struct platform_nand_data - container structure for platform-specific data

 * @chip:		chip level chip structure

 * @ctrl:		controller level device structure

 */

struct platform_nand_data {

	struct platform_nand_chip	chip;

	struct platform_nand_ctrl	ctrl;

};



/* Some helpers to access the data structures */

static inline

struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd)