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authorAlexey Starikovskiy <astarikovskiy@suse.de>2009-04-01 01:33:15 -0400
committerLen Brown <len.brown@intel.com>2009-04-01 01:33:15 -0400
commita5032bfdd9c80e0231a6324661e123818eb46ecd (patch)
treeb4f515d95bac7ab69adaba5b966af4d9689012f1 /drivers/acpi
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
ACPI: EC: Always parse EC device
If ECDT info is not valid, we have last chance to configure EC driver properly at this point, don't miss it. http://bugzilla.kernel.org/show_bug.cgi?id=12461 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/ec.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 2fe15060dcdc..5a2d5372ea39 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -755,6 +755,10 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
755 unsigned long long tmp = 0; 755 unsigned long long tmp = 0;
756 756
757 struct acpi_ec *ec = context; 757 struct acpi_ec *ec = context;
758
759 /* clear addr values, ec_parse_io_ports depend on it */
760 ec->command_addr = ec->data_addr = 0;
761
758 status = acpi_walk_resources(handle, METHOD_NAME__CRS, 762 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
759 ec_parse_io_ports, ec); 763 ec_parse_io_ports, ec);
760 if (ACPI_FAILURE(status)) 764 if (ACPI_FAILURE(status))
@@ -804,11 +808,11 @@ static int acpi_ec_add(struct acpi_device *device)
804 ec = make_acpi_ec(); 808 ec = make_acpi_ec();
805 if (!ec) 809 if (!ec)
806 return -ENOMEM; 810 return -ENOMEM;
807 if (ec_parse_device(device->handle, 0, ec, NULL) != 811 }
808 AE_CTRL_TERMINATE) { 812 if (ec_parse_device(device->handle, 0, ec, NULL) !=
813 AE_CTRL_TERMINATE) {
809 kfree(ec); 814 kfree(ec);
810 return -EINVAL; 815 return -EINVAL;
811 }
812 } 816 }
813 817
814 ec->handle = device->handle; 818 ec->handle = device->handle;
@@ -986,12 +990,12 @@ int __init acpi_ec_ecdt_probe(void)
986 boot_ec->handle = ACPI_ROOT_OBJECT; 990 boot_ec->handle = ACPI_ROOT_OBJECT;
987 acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle); 991 acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle);
988 /* Don't trust ECDT, which comes from ASUSTek */ 992 /* Don't trust ECDT, which comes from ASUSTek */
989 if (!dmi_name_in_vendors("ASUS")) 993 if (!dmi_name_in_vendors("ASUS") && EC_FLAGS_MSI == 0)
990 goto install; 994 goto install;
991 saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL); 995 saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL);
992 if (!saved_ec) 996 if (!saved_ec)
993 return -ENOMEM; 997 return -ENOMEM;
994 memcpy(saved_ec, boot_ec, sizeof(*saved_ec)); 998 memcpy(saved_ec, boot_ec, sizeof(struct acpi_ec));
995 /* fall through */ 999 /* fall through */
996 } 1000 }
997 /* This workaround is needed only on some broken machines, 1001 /* This workaround is needed only on some broken machines,