[ 070/128] ACPI / processor: Get power info before updating the C-states

[Ben Hutchings]

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thomas Schlichter <thomas.schlichter@xxxxxx>

commit f427e5f1cf75bba84cccdac1d8a90552d9ae1065 upstream.

acpi_processor_get_power_info() has to be called before
acpi_processor_setup_cpuidle_states() to have the latest
information available. This fixes the missing C-state information
after AC-->DC transition.

Signed-off-by: Thomas Schlichter <thomas.schlichter@xxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/acpi/processor_idle.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index fea6f8d..ed9a1cc 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1152,6 +1152,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 		}
 
 		/* Populate Updated C-state information */
+		acpi_processor_get_power_info(pr);
 		acpi_processor_setup_cpuidle_states(pr);
 
 		/* Enable all cpuidle devices */


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