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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-03-24 16:49:43 -0600
committerLen Brown <len.brown@intel.com>2009-03-27 12:49:47 -0400
commite747f274951507b5a0850155c3d709e26d20de5b (patch)
tree2c9e02cd94dc592d1fe918da2a9b1e50e3fa0efa /drivers
parent81d0273df20edff275e2eefe6b50436af3bdf9e8 (diff)
downloadlinux-linaro-android-e747f274951507b5a0850155c3d709e26d20de5b.tar.gz
ACPI: call acpi_scan_init() explicitly rather than as initcall
This patch makes acpi_init() call acpi_scan_init() directly. Previously, both acpi_init() and acpi_scan_init() were subsys_initcalls, and acpi_init() was called first based on the link order from the makefile (bus.o before scan.o). acpi_scan_init() registers the ACPI bus type, creates the root device, and enumerates fixed-feature and namespace devices. All of this must be done after acpi_init(), and it's better to call acpi_scan_init() explicitly rather than rely on the link ordering. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/bus.c2
-rw-r--r--drivers/acpi/internal.h2
-rw-r--r--drivers/acpi/scan.c9
3 files changed, 5 insertions, 8 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index bdeed39c3d3..cdd11fda503 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -878,6 +878,8 @@ static int __init acpi_init(void)
* will be disabled in the course of device power transistion.
*/
dmi_check_system(power_nocheck_dmi_table);
+
+ acpi_scan_init();
return result;
}
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 4aee4a236fc..28042c0f2ff 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -1,5 +1,7 @@
/* For use by Linux/ACPI infrastructure, not drivers */
+int acpi_scan_init(void);
+
/* --------------------------------------------------------------------------
Power Resource
-------------------------------------------------------------------------- */
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 2f04cd1147e..c548231965e 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1526,16 +1526,11 @@ static int acpi_bus_scan_fixed(struct acpi_device *root)
return result;
}
-
-static int __init acpi_scan_init(void)
+int __init acpi_scan_init(void)
{
int result;
struct acpi_bus_ops ops;
-
- if (acpi_disabled)
- return 0;
-
memset(&ops, 0, sizeof(ops));
ops.acpi_op_add = 1;
ops.acpi_op_start = 1;
@@ -1568,5 +1563,3 @@ static int __init acpi_scan_init(void)
Done:
return result;
}
-
-subsys_initcall(acpi_scan_init);