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authorAlexey Starikovskiy <astarikovskiy@suse.de>2009-04-01 09:33:15 +0400
committerLen Brown <len.brown@intel.com>2009-04-01 09:33:15 +0400
commita5032bfdd9c80e0231a6324661e123818eb46ecd (patch)
treeb4f515d95bac7ab69adaba5b966af4d9689012f1 /drivers/acpi/ec.c
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
downloadlinux-a5032bfdd9c80e0231a6324661e123818eb46ecd.tar.xz
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/ec.c')
-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)
unsigned long long tmp = 0;
struct acpi_ec *ec = context;
+
+ /* clear addr values, ec_parse_io_ports depend on it */
+ ec->command_addr = ec->data_addr = 0;
+
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
ec_parse_io_ports, ec);
if (ACPI_FAILURE(status))
@@ -804,11 +808,11 @@ static int acpi_ec_add(struct acpi_device *device)
ec = make_acpi_ec();
if (!ec)
return -ENOMEM;
- if (ec_parse_device(device->handle, 0, ec, NULL) !=
- AE_CTRL_TERMINATE) {
+ }
+ if (ec_parse_device(device->handle, 0, ec, NULL) !=
+ AE_CTRL_TERMINATE) {
kfree(ec);
return -EINVAL;
- }
}
ec->handle = device->handle;
@@ -986,12 +990,12 @@ int __init acpi_ec_ecdt_probe(void)
boot_ec->handle = ACPI_ROOT_OBJECT;
acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle);
/* Don't trust ECDT, which comes from ASUSTek */
- if (!dmi_name_in_vendors("ASUS"))
+ if (!dmi_name_in_vendors("ASUS") && EC_FLAGS_MSI == 0)
goto install;
saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL);
if (!saved_ec)
return -ENOMEM;
- memcpy(saved_ec, boot_ec, sizeof(*saved_ec));
+ memcpy(saved_ec, boot_ec, sizeof(struct acpi_ec));
/* fall through */
}
/* This workaround is needed only on some broken machines,