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From: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
To: Marcel Holtmann <marcel@holtmann.org>,
	Johan Hedberg <johan.hedberg@gmail.com>,
	Rob Herring <robh+dt@kernel.org>
Cc: linux-bluetooth@vger.kernel.org, dianders@chromium.org,
	Abhishek Pandit-Subedi <abhishekpandit@chromium.org>,
	devicetree@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Ondrej Jirman <megous@megous.com>,
	Mark Rutland <mark.rutland@arm.com>, Chen-Yu Tsai <wens@csie.org>
Subject: [PATCH v2 0/4] Bluetooth: hci_bcm: Additional changes for BCM4354 support
Date: Thu,  7 Nov 2019 15:27:08 -0800
Message-ID: <20191107232713.48577-1-abhishekpandit@chromium.org> (raw)


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.


Changes in v2:
- Use match data to disallow baudrate setting
- Parse pcm parameters by name instead of as a byte string
- Fix prefix for dt-bindings commit

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: broadcom-bluetooth: Add pcm config

 .../bindings/net/broadcom-bluetooth.txt       | 11 ++++
 drivers/bluetooth/btbcm.c                     | 35 +++++++++++
 drivers/bluetooth/btbcm.h                     | 10 ++++
 drivers/bluetooth/hci_bcm.c                   | 58 ++++++++++++++++++-
 4 files changed, 112 insertions(+), 2 deletions(-)

-- 
2.24.0.rc1.363.gb1bccd3e3d-goog


             reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-07 23:27 Abhishek Pandit-Subedi [this message]
2019-11-07 23:27 ` [PATCH v2 1/4] Bluetooth: hci_bcm: Disallow set_baudrate for BCM4354 Abhishek Pandit-Subedi
2019-11-08  6:08   ` Marcel Holtmann
2019-11-07 23:27 ` [PATCH v2 2/4] Bluetooth: btbcm: Support pcm configuration Abhishek Pandit-Subedi
2019-11-08  6:11   ` Marcel Holtmann
2019-11-07 23:27 ` [PATCH v2 3/4] Bluetooth: hci_bcm: Support pcm params in dts Abhishek Pandit-Subedi
2019-11-07 23:27 ` [PATCH v2 4/4] dt-bindings: net: broadcom-bluetooth: Add pcm config Abhishek Pandit-Subedi
2019-11-08  6:12   ` Marcel Holtmann

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