netdev - [v2 1/2] Docs/devicetree: add serdes-output-amplitude-mv to marvell.txt

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Message-Id: <20211202080527.18520-1-holger.brunck@hitachienergy.com>
Date:   Thu,  2 Dec 2021 09:05:26 +0100
From:   Holger Brunck <holger.brunck@...achienergy.com>
To:     netdev@...r.kernel.org
Cc:     Holger Brunck <holger.brunck@...achienergy.com>,
        Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>,
        Marek Behún <kabel@...nel.org>
Subject: [v2 1/2] Docs/devicetree: add serdes-output-amplitude-mv to marvell.txt

This can be configured from the device tree. Add this property to the
documentation accordingly. This is a property of the port node, which
needs to be specified in millivolts

CC: Andrew Lunn <andrew@...n.ch>
CC: Jakub Kicinski <kuba@...nel.org>
CC: Marek Behún <kabel@...nel.org>
Signed-off-by: Holger Brunck <holger.brunck@...achienergy.com>
---
 Documentation/devicetree/bindings/net/dsa/marvell.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/marvell.txt b/Documentation/devicetree/bindings/net/dsa/marvell.txt
index 2363b412410c..9292b6f960df 100644
--- a/Documentation/devicetree/bindings/net/dsa/marvell.txt
+++ b/Documentation/devicetree/bindings/net/dsa/marvell.txt
@@ -46,6 +46,11 @@ Optional properties:
 - mdio?		: Container of PHYs and devices on the external MDIO
 			  bus. The node must contains a compatible string of
 			  "marvell,mv88e6xxx-mdio-external"
+- serdes-output-amplitude-mv: Configure the output amplitude of the serdes
+			      interface in millivolts. This option can be
+                              set in the ports node as it is a property of
+                              the port.
+    serdes-output-amplitude-mv = <210>;
 
 Example:
 
-- 
2.34.0