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

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Message-Id: <20230213145432.1192911-3-neeraj.sanjaykale@nxp.com>
Date:   Mon, 13 Feb 2023 20:24:31 +0530
From:   Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, marcel@...tmann.org,
        johan.hedberg@...il.com, luiz.dentz@...il.com,
        gregkh@...uxfoundation.org, jirislaby@...nel.org,
        alok.a.tiwari@...cle.com, hdanton@...a.com,
        ilpo.jarvinen@...ux.intel.com, leon@...nel.org
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        linux-serial@...r.kernel.org, amitkumar.karwar@....com,
        rohit.fule@....com, sherry.sun@....com, neeraj.sanjaykale@....com
Subject: [PATCH v3 2/3] 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@....com>
---
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@....com>
+
+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@...ck.org
 S:	Maintained
 F:	mm/zswap.c
 
+NXP BLUETOOTH WIRELESS DRIVERS
+M:	Amitkumar Karwar <amitkumar.karwar@....com>
+M:	Neeraj Kale <neeraj.sanjaykale@....com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/bluetooth/nxp-bluetooth.yaml
+F:	drivers/bluetooth/btnxpuart*
+
 THE REST
 M:	Linus Torvalds <torvalds@...ux-foundation.org>
 L:	linux-kernel@...r.kernel.org
-- 
2.34.1