From: Aaron Lu Subject: [PATCH v10 09/10] libata: use PM_QOS_FLAG_NO_POLL to avoid events checking for ZPODD Date: Wed, 21 Nov 2012 19:50:38 +0800 Message-ID: <1353498639-27631-10-git-send-email-aaron.lu@intel.com> References: <1353498639-27631-1-git-send-email-aaron.lu@intel.com> Return-path: In-Reply-To: <1353498639-27631-1-git-send-email-aaron.lu@intel.com> Sender: linux-acpi-owner@vger.kernel.org To: Jeff Garzik , Tejun Heo , "Rafael J. Wysocki" , Alan Stern Cc: James Bottomley , Jeff Wu , Aaron Lu , linux-ide@vger.kernel.org, linux-linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org List-Id: linux-ide@vger.kernel.org When ODD is powered off, there is no need to do events checking, so set the PM_QOS_FLAG_NO_POLL flag. And the flag is cleared on power on. Signed-off-by: Aaron Lu --- drivers/ata/libata-acpi.c | 3 ++- drivers/ata/libata-zpodd.c | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 27a84de..61a90de 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -840,7 +840,8 @@ static int ata_acpi_choose_state(struct ata_device *dev) if (zpodd_dev_enabled(dev)) { if (zpodd_poweroff_ready(dev)) - dev_pm_qos_update_request(&dev->pm_qos_req, 0); + dev_pm_qos_update_request(&dev->pm_qos_req, + PM_QOS_FLAG_NO_POLL); else dev_pm_qos_update_request(&dev->pm_qos_req, PM_QOS_FLAG_NO_POWER_OFF); diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c index d4dbe42..a37833f 100644 --- a/drivers/ata/libata-zpodd.c +++ b/drivers/ata/libata-zpodd.c @@ -2,6 +2,7 @@ #include #include #include +#include #include "libata.h" @@ -215,6 +216,8 @@ void zpodd_post_resume(struct ata_device *dev) zpodd->last_ready = 0; zpodd->zp_ready = false; + + dev_pm_qos_update_request(&dev->pm_qos_req, 0); } static void zpodd_wake_dev(acpi_handle handle, u32 event, void *context) -- 1.7.12.4