From: Hakan Jansson <hakan.jansson@infineon.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Hakan Jansson <hakan.jansson@infineon.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Linus Walleij <linus.walleij@linaro.org>,
<netdev@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
"Luiz Augusto von Dentz" <luiz.dentz@gmail.com>,
<linux-bluetooth@vger.kernel.org>
Subject: [PATCH v2 1/2] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode
Date: Fri, 20 May 2022 17:07:13 +0200 [thread overview]
Message-ID: <cb20a6f49c91521d54c847ee4dc14451b0ee91dd.1653057480.git.hakan.jansson@infineon.com> (raw)
In-Reply-To: <cover.1653057480.git.hakan.jansson@infineon.com>
Some devices (e.g. CYW5557x) require autobaud mode to enable FW loading.
Autobaud mode can also be required on some boards where the controller
device is using a non-standard baud rate when first powered on.
This patch adds a property, "brcm,uses-autobaud-mode", to enable autobaud
mode selection.
Signed-off-by: Hakan Jansson <hakan.jansson@infineon.com>
---
V1 -> V2: Modify property description
.../devicetree/bindings/net/broadcom-bluetooth.yaml | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
index 5aac094fd217..a29f059c21cc 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
@@ -92,6 +92,15 @@ properties:
pcm-sync-mode: slave, master
pcm-clock-mode: slave, master
+ brcm,uses-autobaud-mode:
+ type: boolean
+ description: >
+ Setting this property will make the host (driver) assert the controller
+ chip's BT_UART_CTS_N prior to asserting BT_REG_ON. This will make the
+ controller start up in autobaud mode. The controller will then detect the
+ baud rate of the first incoming (HCI Reset) command from the host and
+ subsequently use that baud rate.
+
interrupts:
items:
- description: Handle to the line HOST_WAKE used to wake
--
2.25.1
next prev parent reply other threads:[~2022-05-20 15:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-20 15:07 [PATCH v2 0/2] Bluetooth: hci_bcm: Autobaud mode support Hakan Jansson
2022-05-20 15:07 ` Hakan Jansson [this message]
2022-05-22 8:14 ` [PATCH v2 1/2] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode Krzysztof Kozlowski
2022-05-23 9:21 ` Hakan Jansson
2022-05-30 7:44 ` Krzysztof Kozlowski
2022-05-20 15:07 ` [PATCH v2 2/2] Bluetooth: hci_bcm: Add support for FW loading in " Hakan Jansson
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