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From: Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.org>
To: htejun-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org,
	arnd-r2nGTMty4D4@public.gmane.org,
	linux-ide-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	mlangsdo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	jcm-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	patches-qTEPVZfXA3Y@public.gmane.org,
	svtripathi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.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-qTEPVZfXA3Y@public.gmane.org>

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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WARNING: multiple messages have this Message-ID (diff)
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(-)

             reply	other threads:[~2016-01-27  9:49 UTC|newest]

Thread overview: 16+ 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 0/3] ata: Fixes related to edge trigger latch for ahci_xgene driver Suman Tripathi
     [not found] ` <1453888197-11368-1-git-send-email-stripathi-qTEPVZfXA3Y@public.gmane.org>
2016-01-27  9:49   ` [PATCH v2 1/3] ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci Suman Tripathi
2016-01-27  9:49     ` Suman Tripathi
2016-01-31 11:32     ` Tejun Heo
2016-01-31 11:32       ` Tejun Heo
2016-02-01 19:45       ` Suman Tripathi
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
2016-01-27  9:49     ` Suman Tripathi
     [not found]     ` <1453888197-11368-3-git-send-email-stripathi-qTEPVZfXA3Y@public.gmane.org>
2016-01-31 11:35       ` Tejun Heo
2016-01-31 11:35         ` Tejun Heo
2016-02-01 19:43         ` Suman Tripathi
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
2016-01-27  9:49     ` Suman Tripathi

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