From: stripathi@apm•com (Suman Tripathi)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 0/3] ata: Fixes related to edge trigger latch for ahci_xgene driver.
Date: Wed, 27 Jan 2016 15:19:54 +0530 [thread overview]
Message-ID: <1453888197-11368-1-git-send-email-stripathi@apm.com> (raw)
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@apm•com>
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(-)
next reply other threads:[~2016-01-27 9:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 9:49 Suman Tripathi [this message]
2016-01-27 9:49 ` [PATCH v2 1/3] ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci Suman Tripathi
2016-01-31 11:32 ` Tejun Heo
2016-02-01 19:45 ` Suman Tripathi
2016-01-27 9:49 ` [PATCH v2 2/3] libahci: Implement the capability to override the generic ahci interrupt handler Suman Tripathi
2016-01-31 11:35 ` Tejun Heo
2016-02-01 19:43 ` Suman Tripathi
2016-01-27 9:49 ` [PATCH v2 3/3] ahci_xgene: Implement the workaround to fix the missing of edge interrupt for HOST_IRQ_STAT Suman Tripathi
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