Searched hist:"904 c7bad" (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/ata/ |
| H A D | sata_qstor.c | 904c7bad Wed Nov 07 09:53:41 CST 2007 Mark Lord <liml@rtr.ca> libata sata_qstor workaround for spurious interrupts
sata_qstor workaround for spurious interrupts.
The qstor hardware generates spurious interrupts from time to time when
switching in and out of packet mode. These eventually result in the
IRQ being disabled, which kills other devices sharing this IRQ with us.
This workaround isn't perfect, but it's about the best we can do for
this hardware. Spurious interrupts will still happen, but won't be
logged as such, and therefore won't cause the IRQ to be inadvertently
disabled.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
904c7bad Wed Nov 07 09:53:41 CST 2007 Mark Lord <liml@rtr.ca> libata sata_qstor workaround for spurious interrupts
sata_qstor workaround for spurious interrupts.
The qstor hardware generates spurious interrupts from time to time when
switching in and out of packet mode. These eventually result in the
IRQ being disabled, which kills other devices sharing this IRQ with us.
This workaround isn't perfect, but it's about the best we can do for
this hardware. Spurious interrupts will still happen, but won't be
logged as such, and therefore won't cause the IRQ to be inadvertently
disabled.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
|