This patch set implements a workaround for an errate in the APM
X-Gene SATA host controller with edge interrupt. The HOST_IRQ_STAT
misses the edge interrupt from the PORT_IRQ_STAT when clearing the
HOST_IRQ_STAT and reporting the PORT_IRQ_STAT happens in same clock
cycle. It also implements the capability to override generic interrupt
handler.
v1 change:
* Implement the capability for LDD to override interrupt handler.
* ahci_xgene driver implements the edge trigger interrupt handler.
v2 change:
* Remove the AHCI_HFLAG_EDGE_IRQ frim libahci.
Signed-off-by: Suman Tripathi <stripathi@xxxxxxx>
Suman Tripathi (3):
ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci.
libahci: Implement the capability to override the generic ahci
interrupt handler.
ahci_xgene: Implement the workaround to fix the missing of edge
interrupt for HOST_IRQ_STAT.
drivers/ata/ahci.h | 5 ++-
drivers/ata/ahci_xgene.c | 86 +++++++++++++++++++++++++++++++++++++++++++++-
drivers/ata/libahci.c | 53 +++++-----------------------
3 files changed, 98 insertions(+), 46 deletions(-)
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