lkml.org 
[lkml]   [2020]   [Jan]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RESEND][PATCH 1/2] dt-bindings: usb: add non-removable-ports hub property
Date
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 */
--
2.25.0
\
 
 \ /
  Last update: 2020-01-24 16:33    [W:1.126 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site