linux-stable.git/drivers/bluetooth, branch v5.14.2

Bluetooth: btusb: check conditions before enabling USB ALT 3 for WBS

2021-09-03T08:24:01+00:00

commit 55981d3541812234e687062926ff199c83f79a39 upstream.

Some USB BT adapters don't satisfy the MTU requirement mentioned in
commit e848dbd364ac ("Bluetooth: btusb: Add support USB ALT 3 for WBS")
and have ALT 3 setting that produces no/garbled audio. Some adapters
with larger MTU were also reported to have problems with ALT 3.

Add a flag and check it and MTU before selecting ALT 3, falling back to
ALT 1. Enable the flag for Realtek, restoring the previous behavior for
non-Realtek devices.

Tested with USB adapters (mtu<72, no/garbled sound with ALT3, ALT1
works) BCM20702A1 0b05:17cb, CSR8510A10 0a12:0001, and (mtu>=72, ALT3
works) RTL8761BU 0bda:8771, Intel AX200 8087:0029 (after disabling
ALT6). Also got reports for (mtu>=72, ALT 3 reported to produce bad
audio) Intel 8087:0a2b.

Signed-off-by: Pauli Virtanen 
Fixes: e848dbd364ac ("Bluetooth: btusb: Add support USB ALT 3 for WBS")
Tested-by: Michał Kępień 
Tested-by: Jonathan Lampérth 
Signed-off-by: Luiz Augusto von Dentz 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2021-07-05T21:08:24+00:00

Pull tty / serial updates from Greg KH:
 "Here is the big set of tty and serial driver patches for 5.14-rc1.

  A bit more than normal, but nothing major, lots of cleanups.
  Highlights are:

   - lots of tty api cleanups and mxser driver cleanups from Jiri

   - build warning fixes

   - various serial driver updates

   - coding style cleanups

   - various tty driver minor fixes and updates

   - removal of broken and disable r3964 line discipline (finally!)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits)
  serial: mvebu-uart: remove unused member nb from struct mvebu_uart
  arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
  dt-bindings: mvebu-uart: fix documentation
  serial: mvebu-uart: correctly calculate minimal possible baudrate
  serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
  serial: mvebu-uart: fix calculation of clock divisor
  tty: make linux/tty_flip.h self-contained
  serial: Prefer unsigned int to bare use of unsigned
  serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
  serial: qcom_geni_serial: use DT aliases according to DT bindings
  Revert "tty: serial: Add UART driver for Cortina-Access platform"
  tty: serial: Add UART driver for Cortina-Access platform
  MAINTAINERS: add me back as mxser maintainer
  mxser: Documentation, fix typos
  mxser: Documentation, make the docs up-to-date
  mxser: Documentation, remove traces of callout device
  mxser: introduce mxser_16550A_or_MUST helper
  mxser: rename flags to old_speed in mxser_set_serial_info
  mxser: use port variable in mxser_set_serial_info
  mxser: access info->MCR under info->slock
  ...

Bluetooth: hci_uart: Remove redundant assignment to fw_ptr

2021-06-26T05:52:41+00:00

The variable fw_ptr is assigned a value that is not read and the same value
is assigned in the patch goto. The assignment is redundant and can be
removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Nigel Christian 
Signed-off-by: Marcel Holtmann

Bluetooth: btmrvl: remove redundant continue statement

2021-06-26T05:12:44+00:00

The continue statement in the for-loop has no effect,
remove it.

Addresses-Coverity: ("Continue has no effect")
Signed-off-by: Colin Ian King 
Signed-off-by: Marcel Holtmann

Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc.

2021-06-26T05:12:39+00:00

This is btsoc timing issue, after host start to downloading bt firmware,
ep2 need time to switch from function acl to function dfu, so host add
20ms delay as workaround.

Signed-off-by: Tim Jiang 
Signed-off-by: Marcel Holtmann

Bluetooth: btusb: use default nvm if boardID is 0 for wcn6855.

2021-06-26T05:12:39+00:00

if boardID is 0, will use the default nvm file without surfix.

Signed-off-by: Tim Jiang 
Signed-off-by: Marcel Holtmann

Bluetooth: btmtkuart: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

2021-06-26T05:12:38+00:00

Using pm_runtime_resume_and_get is more appropriate
for simplifing code

Signed-off-by: Zhang Qilong 
Signed-off-by: Marcel Holtmann

Bluetooth: btrtl: rename USB fw for RTL8761

2021-06-26T05:12:35+00:00

According Realteks own BT drivers firmware RTL8761B is for UART
and RTL8761BU is for USB.

Change existing 8761B to UART and add an 8761BU entry for USB

Signed-off-by: Joakim Tjernlund 
Signed-off-by: Marcel Holtmann

Bluetooth: btusb: Add 0x0b05:0x190e Realtek 8761BU (ASUS BT500) device.

2021-06-26T05:12:35+00:00

T:  Bus=01 Lev=01 Prnt=01 Port=08 Cnt=04 Dev#= 18 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0b05 ProdID=190e Rev= 2.00
S:  Manufacturer=Realtek
S:  Product=ASUS USB-BT500
S:  SerialNumber=xxxxxxxx
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
Signed-off-by: Joakim Tjernlund 
Signed-off-by: Marcel Holtmann

Bluetooth: hci_h5: Add RTL8822CS capabilities

2021-06-26T05:12:34+00:00

RTL8822 chipset supports WBS, and this information is conveyed in
btusb.c. However, the UART driver doesn't have this information just
yet.

Signed-off-by: Archie Pusaka 
Reviewed-by: Abhishek Pandit-Subedi 
Signed-off-by: Marcel Holtmann