dt-bindings: leds: Document "rc-feedback" trigger

Document the "rc-feedback" trigger which is used to control LEDs by
remote control device activity. This is an existing trigger used in
existing DTs, document it so validation of those DTs would pass.

It was originally introduced into the Linux kernel in 2013 with
commit 153a60bb0fac ("[media] rc: add feedback led trigger for rc keypresses")

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241007205315.2477060-1-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
index bf9a101e4d42068fbc3ccf14b348176b49c3b353..9cd89f30fa7ce61b8c9e5b1cd9efb6c18f4bb8aa 100644 (file)
--- a/Documentation/devicetree/bindings/leds/common.yaml
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -118,6 +118,8 @@ properties:
             # No trigger assigned to the LED. This is the default mode
             # if trigger is absent
           - none
+            # LED indicates remote control feedback
+          - rc-feedback
             # LED indicates camera torch state
           - torch
             # LED indicates USB gadget activity