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authorSeth Forshee <seth.forshee@canonical.com>2011-09-20 16:55:52 -0500
committerMatthew Garrett <mjg@redhat.com>2011-10-24 16:52:36 +0200
commita540d6b5b577f5a320d873a9cc8778ff20bf5ddf (patch)
tree0215c79f5c74337687066b960c1ba85d37b681cc /drivers/platform
parent6e02cc7eb61aeafadb91f7b591a768cdb7a57740 (diff)
toshiba_acpi: Support SPFC as an HCI method
Some Toshiba models, notably those with the TOS1900 device, use the SPFC method for HCI calls instead of GHCI. Test for this method if GHCI isn't found, and if it exists use it for all HCI calls. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/toshiba_acpi.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index a924c7f7722..cc629e621e4 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -892,11 +892,26 @@ static int toshiba_acpi_remove(struct acpi_device *acpi_dev, int type)
return 0;
}
+static const char * __devinit find_hci_method(acpi_handle handle)
+{
+ acpi_status status;
+ acpi_handle hci_handle;
+
+ status = acpi_get_handle(handle, "GHCI", &hci_handle);
+ if (ACPI_SUCCESS(status))
+ return "GHCI";
+
+ status = acpi_get_handle(handle, "SPFC", &hci_handle);
+ if (ACPI_SUCCESS(status))
+ return "SPFC";
+
+ return NULL;
+}
+
static int __devinit toshiba_acpi_add(struct acpi_device *acpi_dev)
{
struct toshiba_acpi_dev *dev;
- acpi_status status;
- acpi_handle handle;
+ const char *hci_method;
u32 hci_result;
bool bt_present;
int ret = 0;
@@ -905,16 +920,17 @@ static int __devinit toshiba_acpi_add(struct acpi_device *acpi_dev)
pr_info("Toshiba Laptop ACPI Extras version %s\n",
TOSHIBA_ACPI_VERSION);
- /* simple device detection: look for HCI method */
- status = acpi_get_handle(acpi_dev->handle, "GHCI", &handle);
- if (ACPI_FAILURE(status))
+ hci_method = find_hci_method(acpi_dev->handle);
+ if (!hci_method) {
+ pr_err("HCI interface not found\n");
return -ENODEV;
+ }
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
dev->acpi_dev = acpi_dev;
- dev->method_hci = "GHCI";
+ dev->method_hci = hci_method;
acpi_dev->driver_data = dev;
if (toshiba_acpi_setup_keyboard(dev))