[PATCH 4/4] libata: acpi: respect may_power_off flag

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



If user does not want the device being powered off when runtime
suspended by setting may_power_off flag to 0, we will not choose D3 cold
ACPI D-State for it in sata_acpi_set_state.

Signed-off-by: Aaron Lu <aaron.lu@xxxxxxxxx>
---
 drivers/ata/libata-acpi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 67a696f..90c42a0 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -848,7 +848,9 @@ static void sata_acpi_set_state(struct ata_port *ap, pm_message_t state)
 
 		if (state.event == PM_EVENT_AUTO_SUSPEND) {
 			acpi_state = acpi_pm_device_sleep_state(
-				&dev->sdev->sdev_gendev, NULL, ACPI_STATE_D3);
+				&dev->sdev->sdev_gendev, NULL,
+				dev->sdev->may_power_off ?
+				ACPI_STATE_D3_COLD : ACPI_STATE_D3_HOT);
 			if (acpi_state > 0)
 				acpi_bus_set_power(handle, acpi_state);
 			acpi_pm_device_run_wake(&dev->sdev->sdev_gendev, true);
-- 
1.7.11.5

--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux