Re: [PATCH] pata_via: add via_fixup()

[Sergei Shtylyov]

Hello.

On 10/13/2011 04:54 PM, Bartlomiej Zolnierkiewicz wrote:

> > On 13-10-2011 15:10, Bartlomiej Zolnierkiewicz wrote:

> > > From: Bartlomiej Zolnierkiewicz<bzolnier@xxxxxxxxx>
> > > Subject: [PATCH] pata_via: add via_fixup()

> > > Factor out common code from via_[re]init_one() to via_fixup().

> > > Signed-off-by: Bartlomiej Zolnierkiewicz<bzolnier@xxxxxxxxx>
> > > ---
> > > earlier references:
> > > https://lkml.org/lkml/2009/11/25/381

> > >    drivers/ata/pata_via.c |   49 +++++++++++++++++++++++--------------------------
> > >    1 file changed, 23 insertions(+), 26 deletions(-)

> > > Index: b/drivers/ata/pata_via.c
> > > ===================================================================
> > > --- a/drivers/ata/pata_via.c
> > > +++ b/drivers/ata/pata_via.c
> > > @@ -491,6 +491,27 @@ static void via_config_fifo(struct pci_d
> > >    	}
> > >    }
> > >
> > > +static void via_fixup(struct pci_dev *pdev, const struct via_isa_bridge *config)
> > > +{
> > > +	u32 timing;
> > > +
> > > +	/* Initialise the FIFO for the enabled channels. */
> > > +	via_config_fifo(pdev, config->flags);
> > > +
> > > +	if (config->udma_mask == ATA_UDMA4) {
> > > +		/* The 66 MHz devices require we enable the clock */
> > > +		pci_read_config_dword(pdev, 0x50,&timing);
> > > +		timing |= 0x80008;
> > > +		pci_write_config_dword(pdev, 0x50, timing);
> > > +	}

> >      Hm, via_init_one() doesn't do this now... but used to do this before your
> > patch:

> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=460f5318460a9a3b2562d8055b9fb1c60b768e1f

> >      Was that patch wrong or am I misundertanding?

> It seems that the previous patch was wrong and I haven't noticed it earlier
> because both patches were in my patch queue.

> From: Bartlomiej Zolnierkiewicz<bzolnier@xxxxxxxxx>
> Subject: [PATCH v2] pata_via: add via_fixup()

> * Fix via_init_one() to enable clock on 66 MHz devices
>    (bug introduced in commit 460f531 "pata_via: store UDMA masks
>     in via_isa_bridges table").

> * Factor out common code from via_[re]init_one() to via_fixup().

> Signed-off-by: Bartlomiej Zolnierkiewicz<bzolnier@xxxxxxxxx>

   OK, but don't you think the fix should be separate from refactor (and be 
applied to -stable)?

WBR, Sergei
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