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[0/4] Bluetooth: hci_bcm: Additional changes for BCM4354 support

Message ID 20191106002923.109344-1-abhishekpandit@chromium.org
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Series Bluetooth: hci_bcm: Additional changes for BCM4354 support | expand


Abhishek Pandit-Subedi Nov. 6, 2019, 12:29 a.m. UTC
While adding support for the BCM4354, I discovered a few more things
that weren't working as they should have.

First, we disallow serdev from setting the baudrate on BCM4354. Serdev
sets the oper_speed first before calling hu->setup() in
hci_uart_setup(). On the BCM4354, this results in bcm_setup() failing
when the hci reset times out.

Next, we add support for setting the PCM parameters, which consists of
a pair of vendor specific opcodes to set the pcm parameters. The
documentation for these params are available in the brcm_patchram_plus
package (i.e. https://github.com/balena-os/brcm_patchram_plus). This is
necessary for PCM to work properly.

All changes were tested with rk3288-veyron-minnie.dts.

Abhishek Pandit-Subedi (4):
  Bluetooth: hci_bcm: Disallow set_baudrate for BCM4354
  Bluetooth: btbcm: Support pcm configuration
  Bluetooth: hci_bcm: Support pcm params in dts
  dt-bindings: net: bluetooth: update broadcom-bluetooth

 .../bindings/net/broadcom-bluetooth.txt       |  4 ++
 drivers/bluetooth/btbcm.c                     | 27 ++++++++++
 drivers/bluetooth/btbcm.h                     | 12 +++++
 drivers/bluetooth/hci_bcm.c                   | 52 ++++++++++++++++++-
 4 files changed, 94 insertions(+), 1 deletion(-)