linux-kernel - [PATCH v1 1/2] dt-bindings: display: tegra: document Tegra20 HDMI port

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Message-ID: <20260210094908.14276-2-clamor95@gmail.com>
Date: Tue, 10 Feb 2026 11:49:07 +0200
From: Svyatoslav Ryhel <clamor95@...il.com>
To: David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Svyatoslav Ryhel <clamor95@...il.com>
Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/2] dt-bindings: display: tegra: document Tegra20 HDMI port

Tegra HDMI can be modeled using an OF graph. Reflect this in the bindings.

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
 .../bindings/display/tegra/nvidia,tegra20-hdmi.yaml | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml
index f77197e4869f..f33b700bf0ee 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml
@@ -82,6 +82,10 @@ properties:
     description: phandle of a display panel
     $ref: /schemas/types.yaml#/definitions/phandle
 
+  port:
+    description: connection to controller receiving HDMI signals
+    $ref: /schemas/graph.yaml#/properties/port
+
   "#sound-dai-cells":
     const: 0
 
@@ -97,8 +101,13 @@ required:
   - reset-names
   - pll-supply
   - vdd-supply
-  - nvidia,ddc-i2c-bus
-  - nvidia,hpd-gpio
+
+anyOf:
+  - required:
+    - nvidia,ddc-i2c-bus
+    - nvidia,hpd-gpio
+  - required:
+    - port
 
 examples:
   - |
-- 
2.51.0