From:   Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
To:     davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, marcel@holtmann.org,
        johan.hedberg@gmail.com, luiz.dentz@gmail.com,
        gregkh@linuxfoundation.org, jirislaby@kernel.org,
        alok.a.tiwari@oracle.com, hdanton@sina.com,
        ilpo.jarvinen@linux.intel.com, leon@kernel.org,
        simon.horman@corigine.com
Cc:     netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org,
        linux-serial@vger.kernel.org, amitkumar.karwar@nxp.com,
        rohit.fule@nxp.com, sherry.sun@nxp.com, neeraj.sanjaykale@nxp.com
Subject: [PATCH v9 2/3] dt-bindings: net: bluetooth: Add NXP bluetooth support
Date:   Mon, 13 Mar 2023 19:39:23 +0530
Message-Id: <20230313140924.3104691-3-neeraj.sanjaykale@nxp.com>
In-Reply-To: <20230313140924.3104691-1-neeraj.sanjaykale@nxp.com>
References: <20230313140924.3104691-1-neeraj.sanjaykale@nxp.com>
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?Dr0dstsF6cDVorfNtDdM0Wyl5n7p2wRhZY4QQDbx6B6CH/m5BMTU4OPXhsU0?=
 =?us-ascii?Q?7EpykD+84y3ZZ4zIPdyxli48YzEYhZTPbKKCazPqm3fT3WEvClX47+3A7H26?=
 =?us-ascii?Q?2lxkTFvpy5OptJipAoskz/8yD3CDjSCzkrPW32QEhhlgSKFoD8sAztmddA+z?=
 =?us-ascii?Q?X/UcHe1WVIAJwjOdgW1xvPAJRKnEUJae7MpLxphpN6P6R0OzJ8chyBBssR+c?=
 =?us-ascii?Q?dSPXHX37G8Oe4PqQjuAQhEs9zj2IkVEwcciESY6v8CI+fiLIPgvyRcGXTPvN?=
 =?us-ascii?Q?SVqo+k8Kf8IYnWh3LTekdBb28HtKpTRx3BrlRVP8KPpWlyvbw1oaiYL0K86Y?=
 =?us-ascii?Q?P16WwaCXcKsNEyQ+BWbhje5OMEYfsL3ZwzXks+W9je+8MhPyM180KlxP+4ey?=
 =?us-ascii?Q?G3mycZtZSBikCNiqN8bjMqau5IPRPk3SbTkTh5moMDfbUQBFtmvLIIQo6gx/?=
 =?us-ascii?Q?V4+W11PomCKRyl0pk+iwhFCtZya9qJFMAFPEQdzWbwN0wkozSm1P9v1cbtzM?=
 =?us-ascii?Q?eZNTYhhx2XtUsAyAPCqmYnn2Z9R58QnPzks0Nk9XW1jRR4hfnmgqzijsj1gU?=
 =?us-ascii?Q?JBPrz/mT/U+vwFYhdK/vJ5njLX30CxQCqc0cCVkVpsCLdBSv1dV0IKC0qPBI?=
 =?us-ascii?Q?eLKgL/Nmyp5OYZJjeKeK8xkYO5SL6qlwW1GgnJXaRE0ctot1WizzqfRZpXhX?=
 =?us-ascii?Q?KfuujoCe+Aaf97Ul1sItJi003WjpmQLNxmmXEV/ThYzUJm2A96E55qwR1Krv?=
 =?us-ascii?Q?d/5ZC6DapsufXdx2YBq6SQdBInndC97Q1vJUYGaOQUJ2wqiYe/hf9UfBlSw9?=
 =?us-ascii?Q?7TWX20/CkwFBgz8Nlmzh4ZTVpbR2Qfgmc/juhQvW+grwr3Q0Iv27S1Sc1NKb?=
 =?us-ascii?Q?WC+Pwchx4AjgeY8hZ6D7DwRRrK2sXJ15QmwKXAB9e1wZ+TXOeRi5X01iyd5Y?=
 =?us-ascii?Q?MuJmbfC77vP4SbCP/gjOcaOiW/NtQZ7ojg1EipW6EX2puIQpwfv8+Q4Ot4vC?=
 =?us-ascii?Q?m99c3CgCfZpT6KnodXUp2vjQdun3B8FWwG+AlMbHMvqVVCsmRmAQgTAgm7Ib?=
 =?us-ascii?Q?D3g7UPJqTN7mQlhKE4ZM0LJYkO8anSHZJRR8h92L7NsBh91qeflOnSQhdvzH?=
 =?us-ascii?Q?0uoSyXrxoivho+6ewdUargSUEsqR8kQygfdgvzONBWyK9BVcGDYA8A9KKmFy?=
 =?us-ascii?Q?uFLpuGXGcLIeoBaX49cxMXcO3xH/LnzjdW/bAtUC04m70PjtJkgpX4sOnraZ?=
 =?us-ascii?Q?7CbCXcrjiB2ro2YA1H4C3CV9YFS2sG+9mEGsOlw4MENnY8JU7UIPWdjIFyX/?=
 =?us-ascii?Q?pfcfIZIFDXVEArg7kuluqKjprEVdW7oL4PFFOWL6UpeVNvX3JrSqwh8Pr2He?=
 =?us-ascii?Q?UtIc1LA43iO7zI23zYy3BYcRFMzUDYh5nnJ4zT1dMxMovNuefWplBGpJf4nW?=
 =?us-ascii?Q?M2/maOs9OcXt8N89CDFPuRWon7aZ9M72Sya7ckEyXZWuID7DY9vsXGLl1lts?=
 =?us-ascii?Q?xdNCY6EpyhMo1wSdSIzKqXADFKFSsPFCxoI+eWa8muRkJ3l5H7qMGGDDNGIQ?=
 =?us-ascii?Q?PEoEf0qz4jIK3CcBqv4hwM1ykOzx3rSciPJJCGb0A7KPaEDUgktIcj5Y2FFt?=
 =?us-ascii?Q?Hw=3D=3D?=
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 02052ef1-d4ce-4f97-8518-08db23cca701
X-MS-Exchange-CrossTenant-AuthSource: AM9PR04MB8603.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Mar 2023 14:10:08.7127
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: 6wZyj32Vox6LoD7iPYrR9JotOkpx8MHAgUa9aMLktMSy3dF7vNl4WXGnZBJHqetbuI1CdCEVG54Ioa6sZ3EkZrnAsB5HPx3nFSYYvlcmoik=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS4PR04MB9244
Precedence: bulk
List-ID: <linux-bluetooth.vger.kernel.org>
X-Mailing-List: linux-bluetooth@vger.kernel.org

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>
---
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)
v4: Resolved dt_binding_check errors, corrected indentation.
(Rob Herring, Krzysztof Kozlowski)
v5: Corrected serial device name in example. (Krzysztof Kozlowski)
---
 .../net/bluetooth/nxp,88w8987-bt.yaml         | 46 +++++++++++++++++++
 MAINTAINERS                                   |  6 +++
 2 files changed, 52 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 000000000000..b913ca59b489
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
@@ -0,0 +1,46 @@
+# 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 32dd41574930..030ec6fe89df 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22835,6 +22835,12 @@ 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
-- 
2.34.1