[PATCH v5 02/18] ACPI: processor: Set the ACPI_COMPANION for the struct cpu instance

[Jonathan Cameron]

The arm64 specific arch_register_cpu() needs to access the _STA
method of the DSDT object so make it available by assigning the
appropriate handle to the struct cpu instance.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron at huawei.com>
---
 drivers/acpi/acpi_processor.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 7a0dd35d62c9..93e029403d05 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -235,6 +235,7 @@ static int acpi_processor_get_info(struct acpi_device *device)
 	union acpi_object object = { 0 };
 	struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
 	struct acpi_processor *pr = acpi_driver_data(device);
+	struct cpu *c;
 	int device_declaration = 0;
 	acpi_status status = AE_OK;
 	static int cpu0_initialized;
@@ -314,6 +315,8 @@ static int acpi_processor_get_info(struct acpi_device *device)
 			cpufreq_add_device("acpi-cpufreq");
 	}
 
+	c = &per_cpu(cpu_devices, pr->id);
+	ACPI_COMPANION_SET(&c->dev, device);
 	/*
 	 *  Extra Processor objects may be enumerated on MP systems with
 	 *  less than the max # of CPUs. They should be ignored _iff
-- 
2.39.2