When bios switch to use Device object instead of Processor statement.
the SSDT for Pstate/Cstate/Tstate can not be loaded dynamically.
So try to scan ACPI0007 in addition to Processor.
this fix regression: 2.6.32 is ok.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
drivers/acpi/processor_core.c | 1 +
1 file changed, 1 insertion(+)
Index: linux-2.6/drivers/acpi/processor_core.c
===================================================================
--- linux-2.6.orig/drivers/acpi/processor_core.c
+++ linux-2.6/drivers/acpi/processor_core.c
@@ -352,4 +352,5 @@ void __init acpi_early_processor_set_pdc
acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
early_init_pdc, NULL, NULL, NULL);
+ acpi_get_devices("ACPI0007", early_init_pdc, NULL, NULL);
}
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