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libata-acpi: set acpi state for SATA port
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Currently, ata_acpi_set_state() only sets acpi sate for IDE port.
Remove this limitation.

Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Lin Ming authored and Jeff Garzik committed Jun 29, 2012
1 parent 30dcf76 commit febe53b
Showing 1 changed file with 11 additions and 9 deletions.
20 changes: 11 additions & 9 deletions drivers/ata/libata-acpi.c
Original file line number Diff line number Diff line change
Expand Up @@ -852,23 +852,25 @@ void ata_acpi_on_resume(struct ata_port *ap)
void ata_acpi_set_state(struct ata_port *ap, pm_message_t state)
{
struct ata_device *dev;

if (!ata_ap_acpi_handle(ap) || (ap->flags & ATA_FLAG_ACPI_SATA))
return;
acpi_handle handle;

/* channel first and then drives for power on and vica versa
for power off */
if (state.event == PM_EVENT_ON)
acpi_bus_set_power(ata_ap_acpi_handle(ap), ACPI_STATE_D0);
handle = ata_ap_acpi_handle(ap);
if (handle && state.event == PM_EVENT_ON)
acpi_bus_set_power(handle, ACPI_STATE_D0);

ata_for_each_dev(dev, &ap->link, ENABLED) {
if (ata_dev_acpi_handle(dev))
acpi_bus_set_power(ata_dev_acpi_handle(dev),
handle = ata_dev_acpi_handle(dev);
if (handle)
acpi_bus_set_power(handle,
state.event == PM_EVENT_ON ?
ACPI_STATE_D0 : ACPI_STATE_D3);
}
if (state.event != PM_EVENT_ON)
acpi_bus_set_power(ata_ap_acpi_handle(ap), ACPI_STATE_D3);

handle = ata_ap_acpi_handle(ap);
if (handle && state.event != PM_EVENT_ON)
acpi_bus_set_power(handle, ACPI_STATE_D3);
}

/**
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