From: Aaron Lu <aaron.lu@xxxxxxxxx>
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.
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 6c8f89c..774180d 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -869,7 +869,9 @@ void ata_acpi_set_state(struct ata_port *ap, pm_message_t state)
if (state.event != PM_EVENT_ON) {
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);
/* TBD: need to check if it's runtime pm request */
--
1.7.11.3
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
