* [1/2] dt-bindings: usb: add non-removable-ports hub property
@ 2019-03-27 19:32 Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2019-03-27 19:32 UTC (permalink / raw)
To: Mans Rullgard
Cc: Greg Kroah-Hartman, Mark Rutland, linux-usb, devicetree,
linux-kernel
On Thu, 28 Feb 2019 18:45:39 +0000, Mans Rullgard wrote:
> Add a non-removable-ports property that lists the hardwired downstream
> ports of a hub. Although hubs can provide this information, they are
> not always configured correctly. An alternate means of indicating this
> for built-in USB devices is thus useful.
>
> Signed-off-by: Mans Rullgard <mans@mansr.com>
> ---
> Documentation/devicetree/bindings/usb/usb-device.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
* [1/2] dt-bindings: usb: add non-removable-ports hub property
@ 2019-02-28 18:45 Måns Rullgård
0 siblings, 0 replies; 2+ messages in thread
From: Måns Rullgård @ 2019-02-28 18:45 UTC (permalink / raw)
To: Greg Kroah-Hartman, Rob Herring, Mark Rutland
Cc: linux-usb, devicetree, linux-kernel
Add a non-removable-ports property that lists the hardwired downstream
ports of a hub. Although hubs can provide this information, they are
not always configured correctly. An alternate means of indicating this
for built-in USB devices is thus useful.
Signed-off-by: Mans Rullgard <mans@mansr.com>
---
Documentation/devicetree/bindings/usb/usb-device.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt
index 036be172b1ae..92d863cc96b6 100644
--- a/Documentation/devicetree/bindings/usb/usb-device.txt
+++ b/Documentation/devicetree/bindings/usb/usb-device.txt
@@ -66,6 +66,10 @@ Required properties for host-controller nodes with device nodes:
- #size-cells: shall be 0
+Optional properties for hub and host-controller nodes:
+- non-removable-ports: list of hardwired downstream ports
+
+
Example:
&usb1 { /* host controller */
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2019-02-28 18:45 Måns Rullgård
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