From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Since acpi_ec_ecdt_probe() is called when boot_ec is not set, it
doesn't neeed to take the other possibility into account.
Accordingly, it only needs to set the handle field in the ec object
to ACPI_ROOT_OBJECT, call acpi_ec_setup() and (if that is successful)
set boot_ec to ec and boot_ec_is_ecdt to 'true'. Make it do so
directly, without calling acpi_config_boot_ec(), and avoid some
pointless checks in the latter.
No intentional functional impact except for a changed message.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/ec.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
Index: linux-pm/drivers/acpi/ec.c
===================================================================
--- linux-pm.orig/drivers/acpi/ec.c
+++ linux-pm/drivers/acpi/ec.c
@@ -1907,14 +1907,22 @@ void __init acpi_ec_ecdt_probe(void)
ec->data_addr = ecdt_ptr->data.address;
}
ec->gpe = ecdt_ptr->gpe;
+ ec->handle = ACPI_ROOT_OBJECT;
/*
* At this point, the namespace is not initialized, so do not find
* the namespace objects, or handle the events.
*/
- ret = acpi_config_boot_ec(ec, ACPI_ROOT_OBJECT, false, true);
- if (ret)
+ ret = acpi_ec_setup(ec, false);
+ if (ret) {
acpi_ec_free(ec);
+ return;
+ }
+
+ boot_ec = ec;
+ boot_ec_is_ecdt = true;
+
+ pr_info("Boot ECDT EC used to handle transactions\n");
}
#ifdef CONFIG_PM_SLEEP
