dt-bindings: Clarify timing subnode use as panel-timing

Add a note in the documentation explaining when it's appropriate to use
the display-timings subnode on its own, as well as the preferred name to
use (panel-timing).

Changes in v3:
 - Added

Cc: Doug Anderson <[email protected]>
Cc: Eric Anholt <[email protected]>
Cc: Heiko Stuebner <[email protected]>
Cc: Jeffy Chen <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Stéphane Marchesin <[email protected]>
Cc: Thierry Reding <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Sean Paul <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

1 files changed, 5 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/display/panel/display-timing.txt b/Documentation/devicetree/bindings/display/panel/display-timing.txt
index 58fa3e48481d..78222ced1874 100644
--- a/Documentation/devicetree/bindings/display/panel/display-timing.txt
+++ b/Documentation/devicetree/bindings/display/panel/display-timing.txt
@@ -80,6 +80,11 @@ The parameters are defined as:
   |          |        v                            |          |       |
   +----------+-------------------------------------+----------+-------+
 
+Note: In addition to being used as subnode(s) of display-timings, the timing
+      subnode may also be used on its own. This is appropriate if only one mode
+      need be conveyed. In this case, the node should be named 'panel-timing'.
+
+
 Example:
 
 	display-timings {