From: Jeff Garzik <jeff@garzik.org>
To: Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-ide@vger.kernel.org, gregerts@stud.ntnu.no
Subject: Re: [PATCH 1/1] AVR32 PATA driver
Date: Fri, 31 Aug 2007 05:38:40 -0400 [thread overview]
Message-ID: <46D7E1A0.2050002@garzik.org> (raw)
In-Reply-To: <200708081657.08448.kngregertsen@norway.atmel.com>
Kristoffer Nyborg Gregertsen wrote:
> Updated and simplified driver. Use only register transfer timing for both
> data and register transfers. This gives poorer performance in PIO1 and 2,
> but should not be a problem in PIO3 and 4, correct me if I'm wrong :)
>
> The driver works very we'll but I still wonder about the interrupts. I have
> an interrupt line, that works nicely when POLLING flag is not set. The
> problem is the number of interrupts that eat away my CPU cycles.
>
> When using the POLLING flag there seem to be some interrupts that dosen't get
> cleared. Furthermore the device dosen't drive INTRQ high, it stays at 2.5 volts
> and generates a lot of interrupts due to ripple / noise. What to do?
>
> Signed-off-by: Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com>
applied
next prev parent reply other threads:[~2007-08-31 9:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-07 9:26 [PATCH 0/1] AVR32 PATA driver Kristoffer Nyborg Gregertsen
2007-08-07 9:27 ` [PATCH 1/1] " Kristoffer Nyborg Gregertsen
2007-08-07 15:54 ` Alan Cox
2007-08-07 17:39 ` Kristoffer Nyborg Gregertsen
2007-08-07 18:14 ` Jeff Garzik
2007-08-07 18:26 ` Kristoffer Nyborg Gregertsen
2007-08-08 14:57 ` Kristoffer Nyborg Gregertsen
2007-08-31 9:38 ` Jeff Garzik [this message]
2007-08-07 15:58 ` [PATCH 0/1] " Alan Cox
2007-08-07 18:18 ` Kristoffer Nyborg Gregertsen
2007-08-14 6:41 ` [PATCH 1/1] " Kristoffer Nyborg Gregertsen
2007-08-14 6:53 ` Kristoffer Nyborg Gregertsen
2007-08-15 8:44 ` Kristoffer Nyborg Gregertsen
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