linux-kernel - [PATCH v4 1/4] dt-bindings: display: bridge: Add schema for Synopsys DW HDMI QP TX IP

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Message-Id: <20240819-b4-rk3588-bridge-upstream-v4-1-6417c72a2749@collabora.com>
Date: Mon, 19 Aug 2024 01:29:28 +0300
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Sandy Huang <hjc@...k-chips.com>, 
 Heiko Stübner <heiko@...ech.de>, 
 Andy Yan <andy.yan@...k-chips.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Mark Yao <markyao0591@...il.com>, 
 Sascha Hauer <s.hauer@...gutronix.de>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 devicetree@...r.kernel.org, kernel@...labora.com, 
 Alexandre ARNOUD <aarnoud@...com>, Luis de Arquer <ldearquer@...il.com>
Subject: [PATCH v4 1/4] dt-bindings: display: bridge: Add schema for
 Synopsys DW HDMI QP TX IP

Add dt-binding schema containing the common properties for the Synopsys
DesignWare HDMI QP TX controller.

Note this is not a full dt-binding specification, but is meant to be
referenced by platform-specific bindings for this IP core.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 .../display/bridge/synopsys,dw-hdmi-qp.yaml        | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi-qp.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi-qp.yaml
new file mode 100644
index 000000000000..771f7fba6c50
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi-qp.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/synopsys,dw-hdmi-qp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for Synopsys DesignWare HDMI QP TX Controller IP
+
+maintainers:
+  - Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
+
+description: |
+  The Synopsys DesignWare HDMI 2.1 Quad-Pixel (QP) TX Controller IP core
+  supports the following features, among others:
+
+  * Fixed Rate Link (FRL)
+  * Display Stream Compression (DSC)
+  * 4K@...Hz and 8K@...z video modes
+  * Variable Refresh Rate (VRR) including Quick Media Switching (QMS)
+  * Fast Vactive (FVA)
+  * SCDC I2C DDC access
+  * Multi-stream audio
+  * Enhanced Audio Return Channel (EARC)
+
+  Note this is not a full dt-binding specification, but is meant to be
+  referenced by platform-specific bindings for this IP core.
+
+properties:
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 4
+    maxItems: 6
+    items:
+      - description: Peripheral/APB bus clock
+      - description: EARC RX biphase clock
+      - description: Reference clock
+      - description: Audio interface clock
+    additionalItems: true
+
+  clock-names:
+    minItems: 4
+    maxItems: 6
+    items:
+      - const: pclk
+      - const: earc
+      - const: ref
+      - const: aud
+    additionalItems: true
+
+  interrupts:
+    minItems: 4
+    maxItems: 5
+    items:
+      - description: AVP Unit interrupt
+      - description: CEC interrupt
+      - description: eARC RX interrupt
+      - description: Main Unit interrupt
+    additionalItems: true
+
+  interrupt-names:
+    minItems: 4
+    maxItems: 5
+    items:
+      - const: avp
+      - const: cec
+      - const: earc
+      - const: main
+    additionalItems: true
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Video port for RGB/YUV input.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Video port for HDMI/eDP output.
+
+    required:
+      - port@0
+      - port@1
+
+additionalProperties: true

-- 
2.46.0