From: Jeff Garzik <jeff@garzik.org>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] pata_it8213: MWDMA0 is unsupported
Date: Thu, 03 Dec 2009 16:04:42 -0500 [thread overview]
Message-ID: <4B1827EA.4050608@garzik.org> (raw)
In-Reply-To: <4B0EB986.2010801@ru.mvista.com>
On 11/26/2009 12:23 PM, Sergei Shtylyov wrote:
> Bartlomiej Zolnierkiewicz wrote:
>
>>> MWDMA0 timings cannot be met with the PIIX based controller
>>> programming interface.
>
>>> This change should be safe as this is how we have been doing
>>> things in IDE it8213 host driver for years.
>
>>> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
>>> ---
>>> Verified with the documentation (similar case as with pata_efar).
>
>> Uhhh, no...
>
>> Too many damn drivers.
>
>> Too much damn duplication.
>
>> Too much damn subtle differences here and there.
>
>> The hardware is probably fine for MWMDA0 when it comes to
>> pata_{efar,it8213},
>> it just not documented properly in the data sheet.
>
> How so with pata_efar? The active/recovery bitfields are still 2-bit
> wide, no?
So.... pata_it8213 is fine for MWDMA0, then?
Jeff
next prev parent reply other threads:[~2009-12-03 21:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 16:28 [PATCH] pata_it8213: MWDMA0 is unsupported Bartlomiej Zolnierkiewicz
2009-11-26 17:00 ` Bartlomiej Zolnierkiewicz
2009-11-26 17:23 ` Sergei Shtylyov
2009-11-26 18:00 ` Bartlomiej Zolnierkiewicz
2009-11-26 18:03 ` Bartlomiej Zolnierkiewicz
2009-11-26 18:12 ` Sergei Shtylyov
2009-11-26 18:27 ` Bartlomiej Zolnierkiewicz
2009-11-26 18:33 ` Sergei Shtylyov
2009-11-26 18:47 ` Sergei Shtylyov
2009-12-03 21:04 ` Jeff Garzik [this message]
2009-12-03 22:06 ` Sergei Shtylyov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4B1827EA.4050608@garzik.org \
--to=jeff@garzik.org \
--cc=bzolnier@gmail.com \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=sshtylyov@ru.mvista.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.