From: akpm@linux-foundation.org
To: mm-commits@vger.kernel.org
Cc: olaf@aepfle.de
Subject: + add-delay-around-sl82c105_reset_engine-calls.patch added to -mm tree
Date: Mon, 12 Feb 2007 21:38:33 -0800 [thread overview]
Message-ID: <200702130538.l1D5cXJ6022768@shell0.pdx.osdl.net> (raw)
The patch titled
add delay around sl82c105_reset_engine calls
has been added to the -mm tree. Its filename is
add-delay-around-sl82c105_reset_engine-calls.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: add delay around sl82c105_reset_engine calls
From: Olaf Hering <olaf@aepfle.de>
The hald media changed polling does really confuse things. Noone knows why
the delays are needed, but they give us access to the CD.
An udelay(50) will give reliable access to the drive, but there is still one
(or more) EH reset. The drive works without EH resets with udelay(100).
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/ata/pata_sl82c105.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN drivers/ata/pata_sl82c105.c~add-delay-around-sl82c105_reset_engine-calls drivers/ata/pata_sl82c105.c
--- a/drivers/ata/pata_sl82c105.c~add-delay-around-sl82c105_reset_engine-calls
+++ a/drivers/ata/pata_sl82c105.c
@@ -187,7 +187,9 @@ static void sl82c105_bmdma_start(struct
{
struct ata_port *ap = qc->ap;
+ udelay(100);
sl82c105_reset_engine(ap);
+ udelay(100);
/* Set the clocks for DMA */
sl82c105_configure_dmamode(ap, qc->dev);
@@ -216,6 +218,7 @@ static void sl82c105_bmdma_stop(struct a
ata_bmdma_stop(qc);
sl82c105_reset_engine(ap);
+ udelay(100);
/* This will redo the initial setup of the DMA device to matching
PIO timings */
_
Patches currently in -mm which might be from olaf@aepfle.de are
origin.patch
move-variables-in-drivers-macintosh-to-bss.patch
add-delay-around-sl82c105_reset_engine-calls.patch
cleanup-variable-usage-in-mesh-interrupt-handler.patch
reply other threads:[~2007-02-13 5:38 UTC|newest]
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