linux-kernel - Re: [PATCH 21/20] ata_piix: add new PIIX_FLAG

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Message-ID: <AANLkTikyV579TRSMw_g_rTB7C641fWbdSELP9mpa30bG@mail.gmail.com>
Date:	Tue, 8 Feb 2011 19:18:12 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Sergei Shtylyov <sshtylyov@...sta.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH 21/20] ata_piix: add new PIIX_FLAG_* flags

Hi,

On Tue, Feb 8, 2011 at 6:12 PM, Sergei Shtylyov <sshtylyov@...sta.com> wrote:
> Hello.
>
> Bartlomiej Zolnierkiewicz wrote:
>
>> Turn open-coded checks in piix_set_timings() into PIIX_FLAG_* flags
>> per suggestion from Alan Cox.
>
>> Suggested-by: Alan Cox <alan@...rguk.ukuu.org.uk>
>> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
>
> [...]
>
>> Index: b/drivers/ata/ata_piix.c
>> ===================================================================
>> --- a/drivers/ata/ata_piix.c
>> +++ b/drivers/ata/ata_piix.c
>> @@ -133,6 +133,8 @@ enum {
>>        PIIX_FLAG_CHECKINTR     = (1 << 28), /* make sure PCI INTx enabled
>> */
>>        PIIX_FLAG_SIDPR         = (1 << 29), /* SATA idx/data pair regs */
>> +       PIIX_FLAG_NO_SITRE      = (1 << 30), /* no SITRE register */
>
>   The register in question is called SIDETIM, SITRE is a bit that enables
> its use.

ICH4-M databook that I have at hand (Intel IDE PRM seems to be gone
from Intel's website, though I'm sure I have a backup _somewhere_) it
is called SLV_IDETIM so lets just stick with the current naming for
now..

Thanks,
Bartlomiej
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