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From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/5] ide: ->ide_dma_clear_irq() -> ->clear_irq()
Date: Wed, 20 Aug 2008 02:22:03 +0400	[thread overview]
Message-ID: <48AB478B.5040209@ru.mvista.com> (raw)
In-Reply-To: <200808192031.40288.bzolnier@gmail.com>

Hello.

Bartlomiej Zolnierkiewicz wrote:

> * Rename ->ide_dma_clear_irq method to ->clear_irq
>   and move it from ide_hwif_t to struct ide_port_ops.
>
> * Move ->waiting_for_dma check inside ->clear_irq method.
>
> * Move ->dma_base check inside ->clear_irq method.
>
> piix.c:
> * Add ich_port_ops and remove init_hwif_ich() wrapper.
>
> There should be no functional changes caused by this patch.
>   

   Good. I think it's worth implementing this method in at least 
cmd64x.c which actually reads the IDE interrupt latch bits (independent 
from the DMA interrupt status) in the dma_test_irq() methods but never 
clears them, so the latches may reflect a non-current state of the IDE 
interrupt...
   It may also be worth considering turning this method into 
test-and-clear, so that we can get the actual IDE interrupt state on the 
chips that implement this...

> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>

MBR, Sergei



  reply	other threads:[~2008-08-19 22:22 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-19 18:31 Bartlomiej Zolnierkiewicz
2008-08-19 22:22 ` Sergei Shtylyov [this message]
2008-09-15 22:11   ` Sergei Shtylyov
2008-09-15 22:29     ` Bartlomiej Zolnierkiewicz
2008-09-16  9:16       ` Sergei Shtylyov
2008-11-12  2:01         ` Jeremy Higdon
2009-05-21 14:07     ` Sergei Shtylyov
2009-05-22 18:44       ` ->ack_intr in m68k IDE drivers [was: Re: [PATCH 2/5] ide: ->ide_dma_clear_irq() -> ->clear_irq()] Bartlomiej Zolnierkiewicz
2009-05-22 19:19         ` Sergei Shtylyov
2009-05-22 19:19         ` Sergei Shtylyov

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