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MTD: OneNAND: interrupt based wait support

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We can use the two methods to wait.
  1. polling: read interrupt status register
  2. interrupt: use kernel ineterrupt mechanism

  To use interrupt method, you first connect onenand interrupt pin to your
platform and configure interrupt properly

Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
This commit is contained in:
Kyungmin Park 2006-11-16 11:23:48 +09:00
parent ff0dab64b4
commit 2c22120fbd
3 changed files with 112 additions and 2 deletions
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4
include/linux/mtd/onenand.h
View file

@ -13,6 +13,7 @@
#define __LINUX_MTD_ONENAND_H
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/mtd/onenand_regs.h>
#include <linux/mtd/bbm.h>
@ -120,6 +121,9 @@ struct onenand_chip {
int (*block_markbad)(struct mtd_info *mtd, loff_t ofs);
int (*scan_bbt)(struct mtd_info *mtd);
struct completion complete;
int irq;
spinlock_t chip_lock;
wait_queue_head_t wq;
onenand_state_t state;