Messages in this thread Patch in this message | | | Date | Mon, 05 Mar 2007 13:10:10 +0900 | From | Tejun Heo <> | Subject | Re: [PATA] Failed to set xfermode on LITE-ON LTR-48246S |
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Philipp Matthias Hahn wrote: > Hello! > > As reported by John Williams and others like in > http://www.mail-archive.com/linux-ide@vger.kernel.org/msg03088.html > I too have a problem with 2.6.20.1 using ata_piix not detecting the > CD-ROM any more. Applying the patch from > http://lkml.org/lkml/2007/2/12/24 did not help, but additionally > applying > http://readlist.com/lists/vger.kernel.org/linux-kernel/45/228948.html > made it work. Here's the relevant extra debugging output:
* Did it work with previous kernels?
* Does applying the attached patch over unpatched 2.6.20.1 fix the problem?
-- tejun diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index dc42ba1..78e6ac5 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -105,8 +105,10 @@ enum { PIIX_FLAG_AHCI = (1 << 27), /* AHCI possible */ PIIX_FLAG_CHECKINTR = (1 << 28), /* make sure PCI INTx enabled */ - PIIX_PATA_FLAGS = ATA_FLAG_SLAVE_POSS, - PIIX_SATA_FLAGS = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR, + PIIX_PATA_FLAGS = ATA_FLAG_SLAVE_POSS | + ATA_FLAG_SETXFER_POLLING, + PIIX_SATA_FLAGS = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR | + ATA_FLAG_SETXFER_POLLING, /* combined mode. if set, PATA is channel 0. * if clear, PATA is channel 1. | |