[PATCH v3 1/2] dt-bindings: display: bridge: ldb: Add i.MX93 LDB

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Same to i.MX8mp LDB, i.MX93 LDB is controlled by mediamix blk-ctrl
through 'ldb' register and 'lvds' register.  Also, the 'ldb' clock
is required.  i.MX93 LDB supports only one LVDS channel(channel 0,
a.k.a, LVDS Channel-A in the device tree binding documentation), while
i.MX8mp LDB supports at most two.  Add i.MX93 LDB device tree binding
in the existing i.MX8mp LDB device tree binding documentation.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Liu Ying <victor.liu@xxxxxxx>
---
v2->v3:
* No change.

v1->v2:
* Drop redundant "device tree binding" from patch subject. (Krzysztof)
* Add Krzysztof's A-b tag.

 .../bindings/display/bridge/fsl,ldb.yaml         | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
index b19be0804abe..6e0e3ba9b49e 100644
--- a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
@@ -16,7 +16,9 @@ description: |
 
 properties:
   compatible:
-    const: fsl,imx8mp-ldb
+    enum:
+      - fsl,imx8mp-ldb
+      - fsl,imx93-ldb
 
   clocks:
     maxItems: 1
@@ -57,6 +59,18 @@ required:
   - clocks
   - ports
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: fsl,imx93-ldb
+    then:
+      properties:
+        ports:
+          properties:
+            port@2: false
+
 additionalProperties: false
 
 examples:
-- 
2.37.1




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