From: linus.walleij@stericsson.com (Linus Walleij)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] DMA: PL08x: fix channel pausing to timeout rather than lockup
Date: Thu, 27 Jan 2011 15:30:32 +0100 [thread overview]
Message-ID: <AANLkTimJ9jYsF9mW3W14UhAOmxFDAuuyiMC2Z6AE=Ppo@mail.gmail.com> (raw)
In-Reply-To: <20110127123744.GA28855@n2100.arm.linux.org.uk>
2011/1/27 Russell King - ARM Linux <linux@arm.linux.org.uk>:
> If a transfer is initiated from memory to a peripheral, then data is
> fetched and the channel is marked busy. ?This busy status persists until
> the HALT bit is set and the queued data has been transfered to the
> peripheral. ?Waiting indefinitely after setting the HALT bit results in
> system lockups. ?Timeout this operation, and print an error when this
> happens.
>
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Yours,
Linus Walleij
next prev parent reply other threads:[~2011-01-27 14:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 12:32 [PATCH 1/2] DMA: PL08x: fix infinite wait when terminating transfers Russell King - ARM Linux
2011-01-27 12:37 ` [PATCH 2/2] DMA: PL08x: fix channel pausing to timeout rather than lockup Russell King - ARM Linux
2011-01-27 14:30 ` Linus Walleij [this message]
2011-01-30 16:48 ` Dan Williams
2011-01-30 16:53 ` Russell King - ARM Linux
2011-01-31 5:48 ` Dan Williams
2011-01-27 14:28 ` [PATCH 1/2] DMA: PL08x: fix infinite wait when terminating transfers Linus Walleij
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