From 0ff57bce947f361a19e0c29945ed72cedef1f913 Mon Sep 17 00:00:00 2001
From: Liu Ying <victor.liu@nxp.com>
Date: Wed, 10 Jun 2026 17:26:21 +0800
Subject: [PATCH] dt-bindings: soc: imx: fsl,imx93-media-blk-ctrl: Allow LVDS
 Display Bridge child node

i.MX93 SoC mediamix blk-ctrl contains one LDB_CTRL register and one LVDS
register which control video output through a LVDS interface.  Allow the
LVDS Display Bridge(LDB) child node and add the child node to example.

i.MX93 LDB child node(bridge@20) is an addressable node, while i.MX93
Parallel Display Format Configuration(PDFC) child node(dpi-bridge) is a
non-addressable node.  Mixing the addressable and non-addressable child
nodes is allowed according to discussion [1].

Link: https://lore.kernel.org/all/n6akxiayi3g6gxcqhreb4iaohmeokoalnqup6h5r2fwdt4zijt@u2wyps55ayqm/ [1]
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 .../soc/imx/fsl,imx93-media-blk-ctrl.yaml     | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
index d828c2e82965..124f5c206ee3 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
@@ -26,6 +26,12 @@ properties:
   reg:
     maxItems: 1
 
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 1
+
   '#power-domain-cells':
     const: 1
 
@@ -92,6 +98,11 @@ properties:
       - compatible
       - ports
 
+  bridge@20:
+    type: object
+    $ref: /schemas/display/bridge/fsl,ldb.yaml#
+    unevaluatedProperties: false
+
 allOf:
   - if:
       properties:
@@ -112,6 +123,7 @@ allOf:
             - const: lcdif
             - const: isi
             - const: csi
+        bridge@20: false
   - if:
       properties:
         compatible:
@@ -163,6 +175,8 @@ examples:
                <&clk IMX93_CLK_MIPI_DSI_GATE>;
                clock-names = "apb", "axi", "nic", "disp", "cam",
                              "pxp", "lcdif", "isi", "csi", "dsi";
+      #address-cells = <1>;
+      #size-cells = <1>;
       #power-domain-cells = <1>;
 
       dpi-bridge {
@@ -190,4 +204,29 @@ examples:
           };
         };
       };
+
+      bridge@20 {
+        compatible = "fsl,imx93-ldb";
+        reg = <0x20 0x4>, <0x24 0x4>;
+        reg-names = "ldb", "lvds";
+        clocks = <&clk IMX93_CLK_LVDS_GATE>;
+        clock-names = "ldb";
+
+        ports {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          port@0 {
+            reg = <0>;
+
+            endpoint {
+              remote-endpoint = <&lcdif_to_ldb>;
+            };
+          };
+
+          port@1 {
+            reg = <1>;
+          };
+        };
+      };
     };