[PATCH v1 1/2] dt-bindings: usb: ti,tusb1046: document HPD_IN override

[Ajit Singh <blfizzyy@gmail.com>]

For boards where HPD_IN is not asserted by hardware, the TUSB1046
can force it high over I2C using the HPDIN_OVERRIDE bit in the
General register (0x0A).

Document the optional ti,hpd-in-override property to force HPD_IN
high when DisplayPort mode is selected.

Signed-off-by: Ajit Singh <blfizzyy@gmail.com>
---
 Documentation/devicetree/bindings/usb/ti,tusb1046.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/ti,tusb1046.yaml b/Documentation/devicetree/bindings/usb/ti,tusb1046.yaml
index e1501ea6b50b..58e9fde3ca71 100644
--- a/Documentation/devicetree/bindings/usb/ti,tusb1046.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,tusb1046.yaml
@@ -20,6 +20,14 @@ properties:
   reg:
     maxItems: 1
 
+  ti,hpd-in-override:
+    type: boolean
+    description: |
+      Force the HPD_IN signal high through the HPDIN_OVERRIDE bit in the
+      General register while DisplayPort Alt Mode is active. This is useful
+      on boards where HPD_IN is not driven by the downstream DisplayPort
+      sink.
+
 required:
   - compatible
   - reg
@@ -39,6 +47,7 @@ examples:
 
             mode-switch;
             orientation-switch;
+            ti,hpd-in-override;
 
             port {
                 endpoint {
-- 
2.50.1 (Apple Git-155)