Re: 2.6.23-rc4-mm1: broke pata_via cable detection

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Laurent Riffard wrote:
Le 01.09.2007 06:58, Andrew Morton a écrit :
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.23-rc4/2.6.23-rc4-mm1/
[...]
+libata-correct-handling-of-srst-reset-sequences.patch
[...]

Alan,

libata-correct-handling-of-srst-reset-sequences.patch broke 80-wire
cable detection on pata_via driver:

$ dmesg | grep ata1
ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xb800 irq 14
ata1.00: ATA-5: ST340016A, 3.75, max UDMA/100
ata1.00: 78165360 sectors, multi 16: LBA ata1.01: ATA-7: Maxtor 6Y080L0, YAR41BW0, max UDMA/133 ata1.01: 160086528 sectors, multi 16: LBA ata1.00: limited to UDMA/33 due to 40-wire cable
ata1.01: limited to UDMA/33 due to 40-wire cable
ata1.00: configured for UDMA/33
ata1.01: configured for UDMA/33

2.6.23-rc3-mm1 and 2.6.23-rc4 work fine (ata1 devices are configured
for UDMA/100).

Few weeks ago, I wrote a patch to solve a wrong cable detection
problem after suspend-to-disk/resume, and it solves this problem
too. Is it the right way to go ?



via_do_set_mode overwrites 80-wire cable detection bits. Let's
preserve them.

Signed-off-by: Laurent Riffard <[email protected]>

applied


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