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authorHans de Goede <hdegoede@redhat.com>2017-10-13 18:54:03 +0300
committerMarcel Holtmann <marcel@holtmann.org>2017-10-14 10:25:12 +0300
commit2d13e347498f69b4f4e95830eda88937c72d7ba6 (patch)
tree725b32d2f8e4eaf9e7e88633222b8227444ae542 /drivers/bluetooth
parent61d220a6c2c001473011d44f34d6f36f09eb2224 (diff)
downloadlinux-2d13e347498f69b4f4e95830eda88937c72d7ba6.tar.xz
Revert "Bluetooth: btusb: Add workaround for Broadcom devices without product id"
Commit 9834e586fa66 ("Bluetooth: btusb: Add workaround for Broadcom devices without product id") was added to deal with the BT part of the BCM4356A2 on GPD pocket laptops having an usb vid:pid of 0000:0000. After another commit to add support for the BCM UART connected BT ACPI-id BCM2E7E used on the GPD win, it turns out that the BT on the GPD pocket is connected via both USB and UART. Adding support for the BCM2E7E ACPI-id causes it to switch to UART mode. The Windows shipped with the device is using it in UART mode and the presence of the BCM2E7E ACPI-id combined with the all 0 USB vid:pid indicates that the BT part was never meant to be used in USB mode. With the recent patches to use serdev device enumeration / instantiation for UART attached ACPI enumerated BT devices, everything work OOTB in UART mode and the workaround for the all 0 USB vid:pid is no longer needed. This reverts commit 9834e586fa ("Bluetooth: btusb: Add workaround for Broadcom devices without product id"). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btusb.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 7a5c06aaa181..c054d7bce490 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -66,7 +66,6 @@ static struct usb_driver btusb_driver;
#define BTUSB_BCM2045 0x40000
#define BTUSB_IFNUM_2 0x80000
#define BTUSB_CW6622 0x100000
-#define BTUSB_BCM_NO_PRODID 0x200000
static const struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@@ -171,10 +170,6 @@ static const struct usb_device_id btusb_table[] = {
{ USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
.driver_info = BTUSB_BCM_PATCHRAM },
- /* Broadcom devices with missing product id */
- { USB_DEVICE_AND_INTERFACE_INFO(0x0000, 0x0000, 0xff, 0x01, 0x01),
- .driver_info = BTUSB_BCM_PATCHRAM | BTUSB_BCM_NO_PRODID },
-
/* Intel Bluetooth USB Bootloader (RAM module) */
{ USB_DEVICE(0x8087, 0x0a5a),
.driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
@@ -2909,19 +2904,6 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info == BTUSB_IGNORE)
return -ENODEV;
- if (id->driver_info & BTUSB_BCM_NO_PRODID) {
- struct usb_device *udev = interface_to_usbdev(intf);
-
- /* For the broken Broadcom devices that show 0000:0000
- * as USB vendor and product information, check that the
- * manufacturer string identifies them as Broadcom based
- * devices.
- */
- if (!udev->manufacturer ||
- strcmp(udev->manufacturer, "Broadcom Corp"))
- return -ENODEV;
- }
-
if (id->driver_info & BTUSB_ATH3012) {
struct usb_device *udev = interface_to_usbdev(intf);