* [v3,1/2] dt-bindings: usb: usb251xb: add documentation for data lane swapping
@ 2019-01-16 14:20 Marco Felsch
0 siblings, 0 replies; 2+ messages in thread
From: Marco Felsch @ 2019-01-16 14:20 UTC (permalink / raw)
To: richard.leitner, robh, fancer.lancer
Cc: devicetree, linux-usb, kernel, gregkh
Add optional binding to allow USB differential-pair (D+/D-) data lane
swapping. The swapping can be specified for each port separately,
default is no swapping.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
---
Changes:
v3:
- no changes
v2:
- rename property s/sw-dx-lanes-ports/swap-dx-lanes
Documentation/devicetree/bindings/usb/usb251xb.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt
index 168ff819e827..17915f64b8ee 100644
--- a/Documentation/devicetree/bindings/usb/usb251xb.txt
+++ b/Documentation/devicetree/bindings/usb/usb251xb.txt
@@ -64,6 +64,8 @@ Optional properties :
- power-on-time-ms : Specifies the time it takes from the time the host
initiates the power-on sequence to a port until the port has adequate
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.
Examples:
usb2512b@2c {
@@ -81,4 +83,6 @@ Examples:
manufacturer = "Foo";
product = "Foo-Bar";
serial = "1234567890A";
+ /* correct misplaced usb connectors on port 1,2 */
+ swap-dx-lanes = <1 2>;
};
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [v3,1/2] dt-bindings: usb: usb251xb: add documentation for data lane swapping
@ 2019-01-16 20:56 Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2019-01-16 20:56 UTC (permalink / raw)
To: Marco Felsch
Cc: richard.leitner, robh, fancer.lancer, devicetree, linux-usb,
kernel, gregkh
On Wed, 16 Jan 2019 15:20:36 +0100, Marco Felsch wrote:
> Add optional binding to allow USB differential-pair (D+/D-) data lane
> swapping. The swapping can be specified for each port separately,
> default is no swapping.
>
> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
> Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
> ---
> Changes:
> v3:
> - no changes
> v2:
> - rename property s/sw-dx-lanes-ports/swap-dx-lanes
>
> Documentation/devicetree/bindings/usb/usb251xb.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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