Received-SPF: pass (google.com: domain of linux-wireless+bounces-6409-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3;
From: Paul Geurts <paul_geurts@live.nl>
To: mgreer@animalcreek.com,
	krzk@kernel.org,
	davem@davemloft.net,
	edumazet@google.com,
	kuba@kernel.org,
	pabeni@redhat.com,
	robh@kernel.org,
	conor+dt@kernel.org,
	linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org,
	devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: Paul Geurts <paul_geurts@live.nl>
Subject: [PATCH 1/2] dt-bindings: net/nfc: ti,trf7970a: Add rx-gain-reduction option
Date: Wed, 17 Apr 2024 00:18:15 +0200
Message-ID:
 <AM0PR09MB267553535F7A85EA639D739C95082@AM0PR09MB2675.eurprd09.prod.outlook.com>
In-Reply-To: <cover.1713305374.git.paul_geurts@live.nl>
References: <cover.1713305374.git.paul_geurts@live.nl>
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
Precedence: bulk
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: AM0PR09MB2675:EE_|DU2PR09MB5357:EE_
X-MS-Office365-Filtering-Correlation-Id: e8021eba-9f6f-4f06-641f-08dc5e632976
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info:
	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
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0:
	=?us-ascii?Q?Qn15LyvDsFBE5X17M9WL5e/6fhgXQpWGHDbabL0NtjQurbU8FlWgu9o3O4vQ?=
 =?us-ascii?Q?ttKuwusEzgQ5MHqU9YJBuP7xAmckYxTmYRW90OXCHgEFwy37HTFGvv2rIEaO?=
 =?us-ascii?Q?giPeoj8SwC/hG80vQw6V65hIuH4SE5gwhe0x2cSgzIPyZ0n3trzbqifwdFZt?=
 =?us-ascii?Q?4HZl2pPEoHP3H6vBYHJ0k2LjJ0GjTcQEsz1wXF4bXf9V+o2bM9nhngxbbEOA?=
 =?us-ascii?Q?L31GEKhvCsUxCvBxH05/AmRm5rGl+u9Vj0uzScbfiwLMUQEZpC7LEdKRMWQz?=
 =?us-ascii?Q?lB6bz1ULQIWy9GWD8KEEw+VulGiMQxUmmY470uMYL0L4U3/sfhNGF5qKWyv6?=
 =?us-ascii?Q?W7PN4og0hFX6YzxLtpITWNZ3f5GTA5+h7Mn0bKvdBwEQ9BcPPdbdKVTbhivT?=
 =?us-ascii?Q?XTRWOtbRxwhMtrBGIkytuYl/fCf/XJUV5nw4LtWQjj8X1g7creD9fStn8m6B?=
 =?us-ascii?Q?PNvznRjAJTzY4bc4TtANdCDpcUwxJ50aySt36uzo2/4R7b0S12lJHDln3zEm?=
 =?us-ascii?Q?qM3kxPfs73q5s9oMjV/NYR+MZU5OM0BlbxAFWcL+AeMognIRZ5nNoGx6/ilt?=
 =?us-ascii?Q?lTvhqKajXcrFi9ca9XP2qvMWQ6SUy+QchTsPPCdNGVHumM5/X4CGMsaGml7S?=
 =?us-ascii?Q?2iCwZkAd1dntMDqg1iTZofQskEfhoOE3HNFoXMaJk00w9sdRtaoQ8CKrISKf?=
 =?us-ascii?Q?QRWGscYCb/lJpjCCz6wG3T6+oK631zewy3X9elieyDHitmwHLc7vThje22oe?=
 =?us-ascii?Q?nmEJKYQvtSOlr6kkFxPdfAwuavxNQd9ISvIUsRwcE2aUfTrLn0SyjEVEMsS1?=
 =?us-ascii?Q?iA1/hFWeQiRBp4dSkCFUrnxukzUGU6YKRZ8TKgni2tnT3hALCAcYdRLyILWe?=
 =?us-ascii?Q?wkIveaoWl299UL15SX5YTcDS32Fx5fMXXulnWFprnqKQj2Bl0OtXcQGN6s25?=
 =?us-ascii?Q?lOztH7d2O6Jpgt6v3jFT5IBe/xdE4Q/cPbC7JzNZKhfVBkt6JOSw8tW56jyt?=
 =?us-ascii?Q?mu0YOVzRW1+SZ5Qj39HhglAOCHK5FAG+mKgydznBwPZf2P52VGHHGvfXoWXo?=
 =?us-ascii?Q?rJ/fQA2CzEgZ0mlSn1CAzdn+W7SR3kDxh4VMhFFyT0FYQtB33DRDK7GUxKvh?=
 =?us-ascii?Q?Xwo4WVxrvLTnRu9yErSKYUNNiKSuK0PQUOPg4jme3Y7wdjWgCOF075XhQFOf?=
 =?us-ascii?Q?mQ8BpZ7+tM4vJ3LGsVYpNNnWTuRtRxfBNuttkZXF5vkw05lAxJihmkMwb9O/?=
 =?us-ascii?Q?x3cgmhCCDBQkVohZ+uXRt4cWmyegMwMn6mZhIJysopsJ029EQ1AtNVZJiO5m?=
 =?us-ascii?Q?yZc=3D?=
X-OriginatorOrg: sct-15-20-4755-11-msonline-outlook-64da6.templateTenant
X-MS-Exchange-CrossTenant-Network-Message-Id: e8021eba-9f6f-4f06-641f-08dc5e632976
X-MS-Exchange-CrossTenant-AuthSource: AM0PR09MB2675.eurprd09.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Apr 2024 22:18:37.2654
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg:
	00000000-0000-0000-0000-000000000000
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU2PR09MB5357

Add option to reduce the RX antenna gain to be able to reduce the
sensitivity.

Signed-off-by: Paul Geurts <paul_geurts@live.nl>
---
 Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml b/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
index d0332eb76ad2..bbd045f6cf04 100644
--- a/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
@@ -55,6 +55,11 @@ properties:
     description: |
       Regulator for supply voltage to VIN pin
 
+  rx-gain-reduction:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Specify a RX gain reduction to reduce antenna sensitivity.
+
 required:
   - compatible
   - interrupts
@@ -95,5 +100,6 @@ examples:
             irq-status-read-quirk;
             en2-rf-quirk;
             clock-frequency = <27120000>;
+            rx-gain-reduction = <3>;
         };
     };
-- 
2.20.1