linux-kernel - [PATCH v20 4/9] dt-bindings: display: bridge: Add Cadence MHDP8501

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Message-Id: <f2b7beebeb99ca69021ca24744e29af3454f5620.1734340233.git.Sandor.yu@nxp.com>
Date: Tue, 17 Dec 2024 14:51:46 +0800
From: Sandor Yu <Sandor.yu@....com>
To: dmitry.baryshkov@...aro.org,
	andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	airlied@...il.com,
	daniel@...ll.ch,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
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	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-phy@...ts.infradead.org,
	mripard@...nel.org
Cc: kernel@...gutronix.de,
	linux-imx@....com,
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Subject: [PATCH v20 4/9] dt-bindings: display: bridge: Add Cadence MHDP8501

Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge.

Signed-off-by: Sandor Yu <Sandor.yu@....com>
---
v19->v20:
- remove data type link of data-lanes.

v18->v19:
- move data-lanes property to endpoint of port@1

v17->v18:
- remove lane-mapping and replace it with data-lanes
- remove r-b tag as property changed.

v16->v17:
- Add lane-mapping property

v9->v16:
 *No change

 .../display/bridge/cdns,mhdp8501.yaml         | 121 ++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
new file mode 100644
index 0000000000000..2417f4038b437
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/cdns,mhdp8501.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cadence MHDP8501 DP/HDMI bridge
+
+maintainers:
+  - Sandor Yu <Sandor.yu@....com>
+
+description:
+  Cadence MHDP8501 DisplayPort/HDMI interface.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8mq-mhdp8501
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description: MHDP8501 DP/HDMI APB clock.
+
+  phys:
+    maxItems: 1
+    description:
+      phandle to the DP/HDMI PHY
+
+  interrupts:
+    items:
+      - description: Hotplug cable plugin.
+      - description: Hotplug cable plugout.
+
+  interrupt-names:
+    items:
+      - const: plug_in
+      - const: plug_out
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Input port from display controller output.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Output port to DisplayPort or HDMI connector.
+
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                description: Lane reordering for HDMI or DisplayPort interface.
+                minItems: 4
+                maxItems: 4
+
+            required:
+              - data-lanes
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+  - interrupt-names
+  - phys
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8mq-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    mhdp: display-bridge@...00000 {
+        compatible = "fsl,imx8mq-mhdp8501";
+        reg = <0x32c00000 0x100000>;
+        interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "plug_in", "plug_out";
+        clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>;
+        phys = <&mdhp_phy>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                mhdp_in: endpoint {
+                    remote-endpoint = <&dcss_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+
+                mhdp_out: endpoint {
+                    remote-endpoint = <&dp_connector>;
+                    data-lanes = <2 1 0 3>;
+                };
+            };
+        };
+    };
-- 
2.34.1