From ab3a769b4dccec2cf60f0a0700b140991bf9afc8 Mon Sep 17 00:00:00 2001
From: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Date: Thu, 16 Mar 2023 22:52:13 +0530
Subject: [PATCH] dt-bindings: net: bluetooth: Add NXP bluetooth support
Add binding document for NXP bluetooth chipsets attached over UART.
Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---
.../net/bluetooth/nxp,88w8987-bt.yaml | 45 +++++++++++++++++++
MAINTAINERS | 6 +++
2 files changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
new file mode 100644
index 0000000000000..57e4c87cb00b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/nxp,88w8987-bt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Bluetooth chips
+
+description:
+ This binding describes UART-attached NXP bluetooth chips. These chips
+ are dual-radio chips supporting WiFi and Bluetooth. The bluetooth
+ works on standard H4 protocol over 4-wire UART. The RTS and CTS lines
+ are used during FW download. To enable power save mode, the host
+ asserts break signal over UART-TX line to put the chip into power save
+ state. De-asserting break wakes up the BT chip.
+
+maintainers:
+ - Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
+
+properties:
+ compatible:
+ enum:
+ - nxp,88w8987-bt
+ - nxp,88w8997-bt
+
+ fw-init-baudrate:
+ description:
+ Chip baudrate after FW is downloaded and initialized.
+ This property depends on the module vendor's
+ configuration. If this property is not specified,
+ 115200 is set as default.
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ serial {
+ bluetooth {
+ compatible = "nxp,88w8987-bt";
+ fw-init-baudrate = <3000000>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 6ac562e0381e0..ee743e25b096d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23237,6 +23237,12 @@ L: linux-mm@kvack.org
S: Maintained
F: mm/zswap.c
+NXP BLUETOOTH WIRELESS DRIVERS
+M: Amitkumar Karwar <amitkumar.karwar@nxp.com>
+M: Neeraj Kale <neeraj.sanjaykale@nxp.com>
+S: Maintained
+F: Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
+
THE REST
M: Linus Torvalds <torvalds@linux-foundation.org>
L: linux-kernel@vger.kernel.org
--
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