On 09/12/2012 04:29 AM, Aaron Lu wrote:
If user does not want the device to be powered off when runtime
suspended by setting may_power_off flag to 0, we will not choose
D3 cold for it.
Signed-off-by: Aaron Lu <aaron.lu@xxxxxxxxx>
---
drivers/ata/libata-acpi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 9aca057..24347e0 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -855,6 +855,7 @@ void ata_acpi_set_state(struct ata_port *ap, pm_message_t state)
struct ata_device *dev;
acpi_handle handle;
int acpi_state, ret;
+ bool power_off_allowed;
/* channel first and then drives for power on and vica versa
for power off */
@@ -868,9 +869,11 @@ void ata_acpi_set_state(struct ata_port *ap, pm_message_t state)
continue;
if (state.event != PM_EVENT_ON) {
+ power_off_allowed = dev->sdev->ready_to_power_off &&
+ dev->sdev->may_power_off;
acpi_state = acpi_pm_device_sleep_state(
&dev->sdev->sdev_gendev, NULL,
- dev->sdev->ready_to_power_off ?
+ power_off_allowed ?
ACPI_STATE_D3 : ACPI_STATE_D3_HOT);
Acked-by: Jeff Garzik <jgarzik@xxxxxxxxxx>
with the same caveat as with the rest of this patchset: contingent upon
acceptance of the other API changes.
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