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From: Aaron Lu <aaron.lu@intel.com>
To: Jeff Garzik <jgarzik@pobox.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Alan Stern <stern@rowland.harvard.edu>, Tejun Heo <tj@kernel.org>
Cc: Aaron Lu <aaron.lwe@gmail.com>, Jeff Wu <jeff.wu@amd.com>,
	linux-ide@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-scsi@vger.kernel.org, linux-acpi@vger.kernel.org,
	Aaron Lu <aaron.lu@intel.com>
Subject: [PATCH v12 6/9] libata: expose pm qos flags for ata device
Date: Thu, 10 Jan 2013 17:24:27 +0800	[thread overview]
Message-ID: <1357809870-18816-7-git-send-email-aaron.lu@intel.com> (raw)
In-Reply-To: <1357809870-18816-1-git-send-email-aaron.lu@intel.com>

Expose pm qos flags to user space so that user has a chance to disable
ZPODD feature, if he/she has a broken platform or devices or simply does
not like this feature.

This flag is exposed to user space only for ZPODD devices.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
---
 drivers/ata/libata-acpi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 6f72c64..9709449 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -17,6 +17,7 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_qos.h>
 #include <scsi/scsi_device.h>
 #include "libata.h"
 
@@ -1022,6 +1023,8 @@ static void ata_acpi_unregister_power_resource(struct ata_device *dev)
 void ata_acpi_bind(struct ata_device *dev)
 {
 	ata_acpi_register_power_resource(dev);
+	if (zpodd_dev_enabled(dev))
+		dev_pm_qos_expose_flags(&dev->sdev->sdev_gendev, 0);
 }
 
 void ata_acpi_unbind(struct ata_device *dev)
-- 
1.7.11.7


  parent reply	other threads:[~2013-01-10  9:24 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-10  9:24 [PATCH v12 0/9] ZPODD Patches Aaron Lu
2013-01-10  9:24 ` [PATCH v12 1/9] scsi: sr: support runtime pm Aaron Lu
2013-01-10  9:24 ` [PATCH v12 2/9] libata: identify and init ZPODD devices Aaron Lu
2013-01-10 19:47   ` Tejun Heo
2013-01-10  9:24 ` [PATCH v12 3/9] libata: move acpi notification code to zpodd Aaron Lu
2013-01-10 19:48   ` Tejun Heo
2013-01-10  9:24 ` [PATCH v12 4/9] libata: check zero power ready status for ZPODD Aaron Lu
2013-01-10 19:52   ` Tejun Heo
2013-01-11  2:00     ` Aaron Lu
2013-01-10  9:24 ` [PATCH v12 5/9] libata: handle power transition of ODD Aaron Lu
2013-01-10 19:54   ` Tejun Heo
2013-01-10  9:24 ` Aaron Lu [this message]
2013-01-10 19:55   ` [PATCH v12 6/9] libata: expose pm qos flags for ata device Tejun Heo
2013-01-10  9:24 ` [PATCH v12 7/9] libata: scsi: no poll when ODD is powered off Aaron Lu
2013-01-10 19:56   ` Tejun Heo
2013-01-11  2:11     ` Aaron Lu
2013-01-11  2:17       ` Tejun Heo
2013-01-11  3:16         ` Aaron Lu
2013-01-11 18:44           ` Tejun Heo
2013-01-14 18:01             ` Jeff Garzik
2013-01-15  7:12               ` Aaron Lu
2013-01-10  9:24 ` [PATCH v12 8/9] libata: do not suspend port if normal ODD is attached Aaron Lu
2013-01-10 19:57   ` Tejun Heo
2013-01-10  9:24 ` [PATCH v12 9/9] scsi: remove can_power_off flag from scsi_device Aaron Lu

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