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Message-Id: <20220306184720.5350-1-tomm.merciai@gmail.com>
Date: Sun, 6 Mar 2022 19:47:20 +0100
From: Tommaso Merciai <tomm.merciai@...il.com>
To: unlisted-recipients:; (no To-header on input)
Cc: tomm.merciai@...il.com, linuxfancy@...glegroups.com,
Richard Leitner <richard.leitner@...data.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>, linux-usb@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: usb: usb251xb: add documentation for boost-up property
Add documentation for the optional property boost-up.
Signed-off-by: Tommaso Merciai <tomm.merciai@...il.com>
---
Documentation/devicetree/bindings/usb/usb251xb.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt
index 1a934eab175e..29b5d6521f3c 100644
--- a/Documentation/devicetree/bindings/usb/usb251xb.txt
+++ b/Documentation/devicetree/bindings/usb/usb251xb.txt
@@ -67,6 +67,8 @@ Optional properties :
power. The value is given in ms in a 0 - 510 range (default is 100ms).
- swap-dx-lanes : Specifies the ports which will swap the differential-pair
(D+/D-), default is not-swapped.
+ - boost-up: Property control USB electrical drive strength. There are 4 possible
+ modes: normal (0x00), low (0x01), medium (0x10), high (0x11). Normal default.
Examples:
usb2512b@2c {
--
2.25.1
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