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From: =?UTF-8?q?J=C3=A9r=C3=A9mie=20Dautheribes?= <jeremie.dautheribes@bootlin.com>
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	Eric Dumazet <edumazet@google.com>,
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	Heiner Kallweit <hkallweit1@gmail.com>,
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	Andrew Davis <afd@ti.com>
Cc: netdev@vger.kernel.org,
	devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
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	=?UTF-8?q?J=C3=A9r=C3=A9mie=20Dautheribes?= <jeremie.dautheribes@bootlin.com>
Subject: [PATCH net-next 1/3] dt-bindings: net: dp83822: support configuring RMII master/slave mode
Date: Thu, 22 Feb 2024 11:31:15 +0100
Message-Id: <20240222103117.526955-2-jeremie.dautheribes@bootlin.com>
In-Reply-To: <20240222103117.526955-1-jeremie.dautheribes@bootlin.com>
References: <20240222103117.526955-1-jeremie.dautheribes@bootlin.com>
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Add property ti,rmii-mode to support selecting the RMII operation mode
between:
	- master mode (PHY operates from a 25MHz clock reference)
	- slave mode (PHY operates from a 50MHz clock reference)

If not set, the operation mode is configured by hardware straps.

Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.com>
---
 .../devicetree/bindings/net/ti,dp83822.yaml      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
index 8f4350be689c..8f23254c0458 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
@@ -80,6 +80,22 @@ properties:
            10625, 11250, 11875, 12500, 13125, 13750, 14375, 15000]
     default: 10000
 
+  ti,rmii-mode:
+    description: |
+       If present, select the RMII operation mode. Two modes are
+       available:
+         - RMII master, where the PHY operates from a 25MHz clock reference,
+         provided by a crystal or a CMOS-level oscillator
+         - RMII slave, where the PHY operates from a 50MHz clock reference,
+         provided by a CMOS-level oscillator
+       The RMII operation mode can also be configured by its straps.
+       If the strap pin is not set correctly or not set at all, then this can be
+       used to configure it.
+    $ref: /schemas/types.yaml#/definitions/string
+    enum:
+      - master
+      - slave
+
 required:
   - reg
 
-- 
2.34.1