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From: Devin Butterfield <dbutter@wireless.net>
To: David Woodhouse <dwmw2@infradead.org>
Cc: ipaq@handhelds.org, linux-mtd@lists.infradead.org
Subject: Re: [iPAQ] Sleep/resume problems, etc.
Date: Wed, 9 May 2001 00:50:46 -0700	[thread overview]
Message-ID: <01050900504600.05074@dbm.wireless.net> (raw)
In-Reply-To: <3428.989306452@redhat.com>

> The power cycle has reset the flash chip into read mode. The driver still
> thinks it's in status mode.
>
> The chip driver's resume function needs to make sure the chip is in a known
> state, rather than assuming it'll still be in the same state it was before
> the sleep.
>
> I'm sure I'd done this before.
>
> diff -u -r1.72 cfi_cmdset_0001.c
> --- cfi_cmdset_0001.c	2001/03/26 13:51:15	1.72
> +++ cfi_cmdset_0001.c	2001/05/08 07:19:12
> @@ -1582,7 +1582,9 @@
>  		spin_lock_bh(chip->mutex);
>
>  		if (chip->state == FL_PM_SUSPENDED) {
> -			chip->state = chip->oldstate;
> +			/* We need to force it back to a known state. */
> +			cfi_write(map, CMD(0xff), cmd_addr);
						  ^^^^^^^^
What should cmd_addr be here? It's not defined.
--
Regards, Devin.

      reply	other threads:[~2001-05-09  7:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <01050718392500.02834@dbm.wireless.net>
2001-05-08  7:20 ` [iPAQ] Sleep/resume problems, etc David Woodhouse
2001-05-09  7:50   ` Devin Butterfield [this message]

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