Commit a86aaa6d authored Oct 19, 2006 by David Anders Committed by David Woodhouse Oct 21, 2006

[MTD] NOR: leave Intel chips in read-array mode on suspend



During some testing with several samsung s3c24xx based
devices it was discovered that often the
cfi_cmdset_0001.c would not leave the chip in
read-array mode on suspend. this is an issue if the
same flash chip is used for the bootloader that needs
to be read on resume.

Signed-off-by: David Anders <danders@amltd.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

parent d29ebdbe

drivers/mtd/chips/cfi_cmdset_0001.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2224,6 +2224,8 @@ static int cfi_intelext_suspend(struct mtd_info *mtd)
		case FL_CFI_QUERY:
		case FL_JEDEC_QUERY:
		if (chip->oldstate == FL_READY) {
		/* place the chip in a known state before suspend */
		map_write(map, CMD(0xFF), cfi->chips[i].start);
		chip->oldstate = chip->state;
		chip->state = FL_PM_SUSPENDED;
		/* No need to wake_up() on this state change -