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| author | Tejun Heo <htejun@gmail.com> | 2007-12-08 08:45:27 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-12-17 20:33:11 -0500 |
| commit | 8cf32ac6578a70025be1103466da9d1d6141429e (patch) | |
| tree | b77386f566db1d0a71bb0e7cbf2a69fd2ed9df5e /drivers/ata/sata_sx4.c | |
| parent | 2cc3a8f6ac0fb1e6095a47001d31aadcf9722bde (diff) | |
| download | linux-8cf32ac6578a70025be1103466da9d1d6141429e.tar.bz2 | |
sata_sil: fix spurious IRQ handling
Interestingly, sata_sil raises spurious interrupts if it's coupled
with Sil SATA_PATA bridge. Currently, sata_sil interrupt handler is
strict about spurious interrupts and freezes the port when it occurs.
This patch makes it more forgiving.
* On SATA PHY event interrupt, serror value is checked to see whether
it really is PHYRDY CHG event. If not, SATA PHY event interrupt is
ignored.
* If ATA interrupt occurs while no command is in progress, it's
cleared and ignored.
This fixes bugzilla bug 9505.
http://bugzilla.kernel.org/show_bug.cgi?id=9505
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/sata_sx4.c')
0 files changed, 0 insertions, 0 deletions