The patch titled
pata_amd dropping to PIO on resume
has been added to the -mm tree. Its filename is
pata_amd-dropping-to-pio-on-resume.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: pata_amd dropping to PIO on resume
From: Tobias Diedrich <ranma+kernel@xxxxxxxxxxxx>
Jeff Garzik wrote:
> Robert Hancock wrote:
> >Yes, the fact that it's going into simplex mode is the problem, it
> >wasn't in simplex to start with. It looks like pata_amd does an
> >ata_pci_clear_simplex only for certain chip models, maybe this model
> >needs it as well?
>
> Deleting the ata_pci_clear_simplex() call, then adding
> ATA_FLAG_IGN_SIMPLEX to the ata_port_info info[] array, is also worth
> trying.
I tried the latter option and it works fine.
I didn't delete the ata_pci_clear_simplex call, since it is not
called for this model.
BTW, this the nVidia MCP55 IDE controller:
00:04.0 IDE interface: nVidia Corporation MCP55 IDE (rev a1)
00:04.0 0101: 10de:036e (rev a1)
(akpm: needs sane changelog, no idea if it's right)
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/pata_amd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/ata/pata_amd.c~pata_amd-dropping-to-pio-on-resume drivers/ata/pata_amd.c
--- a/drivers/ata/pata_amd.c~pata_amd-dropping-to-pio-on-resume
+++ a/drivers/ata/pata_amd.c
@@ -611,7 +611,7 @@ static int amd_init_one(struct pci_dev *
},
{ /* 8: Nvidia Nforce2 and later */
.sht = &amd_sht,
- .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_IGN_SIMPLEX,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.udma_mask = 0x7f, /* UDMA 133, no swdma */
_
Patches currently in -mm which might be from ranma+kernel@xxxxxxxxxxxx are
pata_amd-dropping-to-pio-on-resume.patch
-
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