[PATCH v3 2/3] dt-bindings: net: bluetooth: Add NXP bluetooth support

From: Neeraj Sanjay Kale
Date: Mon Feb 13 2023 - 09:56:04 EST


Add binding document for NXP bluetooth chipsets attached
over UART.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@xxxxxxx>
---
v2: Resolved dt_binding_check errors. (Rob Herring)
v2: Modified description, added specific compatibility devices, corrected indentations. (Krzysztof Kozlowski)
v3: Modified description, renamed file (Krzysztof Kozlowski)
---
.../bindings/net/bluetooth/nxp,w8xxx-bt.yaml | 44 +++++++++++++++++++
MAINTAINERS | 7 +++
2 files changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/bluetooth/nxp,w8xxx-bt.yaml

diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,w8xxx-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,w8xxx-bt.yaml
new file mode 100644
index 000000000000..2685f6d5904f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,w8xxx-bt.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/nxp-bluetooth.yaml#
+$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,
+ except for iw612, which is a tri-radio chip supporting 15.4
+ as well.
+ 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@xxxxxxx>
+
+properties:
+ compatible:
+ enum:
+ - nxp,88w8987-bt
+ - nxp,88w8997-bt
+ - nxp,88w9098-bt
+ - nxp,iw416-bt
+ - nxp,iw612-bt
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ uart2 {
+ uart-has-rtscts;
+ bluetooth {
+ compatible = "nxp,iw416-bt";
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 32dd41574930..211fc667c0ec 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22835,6 +22835,13 @@ L: linux-mm@xxxxxxxxx
S: Maintained
F: mm/zswap.c

+NXP BLUETOOTH WIRELESS DRIVERS
+M: Amitkumar Karwar <amitkumar.karwar@xxxxxxx>
+M: Neeraj Kale <neeraj.sanjaykale@xxxxxxx>
+S: Maintained
+F: Documentation/devicetree/bindings/net/bluetooth/nxp-bluetooth.yaml
+F: drivers/bluetooth/btnxpuart*
+
THE REST
M: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
L: linux-kernel@xxxxxxxxxxxxxxx
--
2.34.1