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[V2] dt-bindings: leds: add "usbport" trigger

Message ID 20230308065424.29113-1-zajec5@gmail.com
State New
Headers show
Series [V2] dt-bindings: leds: add "usbport" trigger | expand

Commit Message

Rafał Miłecki March 8, 2023, 6:54 a.m. UTC 
From: Rafał Miłecki <rafal@milecki.pl>

Linux's "usbport" trigger is a bit specific one. It allows LED to follow
state of multiple USB ports which have to be selected additionally
(there isn't a single trigger for each port).

Default list of USB ports to monitor can be specified using
"trigger-sources" DT property. Theoretically it should be possible for
Linux to deduce applicable trigger based on the references nodes in the
"trigger-sources". It hasn't been implemented however (probably due to
laziness).

Milk spilled - we already have DT files specifying "usbport" manually -
allow that value in the binding. This fixes validation of in-kernel and
external DT files.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 Documentation/devicetree/bindings/leds/common.yaml | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
index 15e3f6645682..95b316ee3146 100644
--- a/Documentation/devicetree/bindings/leds/common.yaml
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -99,6 +99,7 @@  properties:
           - pattern
           - usb-gadget
           - usb-host
+          - usbport
       - pattern: "^cpu[0-9]*$"
       - pattern: "^hci[0-9]+-power$"
         # LED is triggered by Bluetooth activity