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Revert "Bluetooth: btusb: Add workaround for Broadcom devices without product id" 

Commit 9834e586fa ("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>
This commit is contained in:
Hans de Goede 2017-10-13 17:54:03 +02:00 committed by Marcel Holtmann
parent 61d220a6c2
commit 2d13e34749
1 changed files with 0 additions and 18 deletions
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18
drivers/bluetooth/btusb.c
View File

@ -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);