linux-kernel - Re: [PATCH] libata: Add pata_atp867x driver for Artop/Acard ATP867X controllers

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Date:	Sat, 12 Sep 2009 17:37:01 -0700
From:	"Jung-Ik (John) Lee" <jilee@...gle.com>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	Robert Hancock <hancockrwd@...il.com>,
	Daniel Walker <dwalker@...o99.com>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, Grant Grundler <grundler@...gle.com>,
	Gwendal Grignou <gwendal@...gle.com>,
	Eric Uhrhane <ericu@...gle.com>
Subject: Re: [PATCH] libata: Add pata_atp867x driver for Artop/Acard ATP867X 
	controllers

On Sat, Sep 12, 2009 at 5:31 PM, Jeff Garzik <jgarzik@...ox.com> wrote:
> On 09/12/2009 08:26 PM, Jung-Ik (John) Lee wrote:
>>
>> From: John(Jung-Ik) Lee<jilee@...gle.com>
>>
>> This is a new pata driver for ARTOP 867X 64bit 4-channel UDMA133 ATA
>> ctrls.
>> Based on the Atp867 data sheet rev 1.2, Acard, and in part on early ide
>> codes
>> from Eric Uhrhane<ericu@...gle.com>.
>>
>> Signed-off-by: John(Jung-Ik) Lee<jilee@...gle.com>
>> Reviewed-by:  Grant Grundler<grundler@...gle.com>
>> Reviewed-by:  Gwendal Gringo<gwendal@...gle.com>
>> ---
>>
>>  drivers/ata/Kconfig        |    9 +
>>  drivers/ata/Makefile       |    1 +
>>  drivers/ata/pata_atp867x.c |  578
>> ++++++++++++++++++++++++++++++++++++++++++++
>>  include/linux/pci_ids.h    |    2 +
>>  4 files changed, 590 insertions(+), 0 deletions(-)
>
> What changed in this patch, versus previous patches?

Only one change - removed the hard-coded value for active/recovery.

 -+#ifdef ATP867X_NO_HACK_PIOMODE
 + b = atp867x_get_active_clocks_shifted(t.active) |
 +  atp867x_get_recover_clocks_shifted(t.recover);
-+#else
-+ /*
-+  * magic value that works (from doc 6.4, 6.6.9)
-+  */
-+ b = 0x31;
-+#endif
 + if (dp->pci66mhz)
 +  b += 0x10;
 +


>
> (that's a question, and also an indication of what needs to be explicitly
> stated in your email body, immediately following the "---" separator, for
> each patch revision)
>

I'll send another with rev change.
-John


> Since the merge window is open, I will likely send this driver upstream as
> soon as feedback level approaches zero.
>
>        Jeff
>
>
>
>
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