media: dt-bindings: media: mediatek: vcodec: Adds decoder dt-bindings for lat soc

Adds decoder dt-bindings for compatible "mediatek,mtk-vcodec-lat-soc".
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml

@@ -17,20 +17,20 @@ description: |
 
   About the Decoder Hardware Block Diagram, please check below:
 
-    +---------------------------------+------------------------------------+
+    +------------------------------------------------+-------------------------------------+
     |                                                |                                     |
-    | input -> lat HW -> lat buffer --|--> lat buffer -> core HW -> output |
-    |            ||                   |                     ||             |
-    +------------||-------------------+---------------------||-------------+
-              lat workqueue           |              core workqueue     <parent>
-    -------------||-----------------------------------------||------------------
-                 ||                                         ||          <child>
-                 \/ <----------------HW index-------------->\/
-           +------------------------------------------------------+
+    |  input -> lat soc HW -> lat HW -> lat buffer --|--> lat buffer -> core HW -> output  |
+    |            ||             ||                   |                     ||              |
+    +------------||-------------||-------------------+---------------------||--------------+
+                 ||     lat     ||                   |               core workqueue  <parent>
+    -------------||-------------||-------------------|---------------------||---------------
+                 ||<------------||----------------HW index---------------->||        <child>
+                 \/             \/                                         \/
+               +-------------------------------------------------------------+
                |                          enable/disable                     |
                |                 clk     power    irq    iommu               |
                |                   (lat/lat soc/core0/core1)                 |
-           +------------------------------------------------------+
+               +-------------------------------------------------------------+
 
   As above, there are parent and child devices, child mean each hardware. The child device
   controls the information of each hardware independent which include clk/power/irq.
@@ -45,6 +45,13 @@ description: |
   For the smi common may not the same for each hardware, can't combine all hardware in one node,
   or leading to iommu fault when access dram data.
 
+  Lat soc is a hardware which is related with some larb(local arbiter) ports. For mt8195
+  platform, there are some ports like RDMA, UFO in lat soc larb, need to enable its power and
+  clock when lat start to work, don't have interrupt.
+
+  mt8195: lat soc HW + lat HW + core HW
+  mt8192: lat HW + core HW
+
 properties:
   compatible:
     enum:
@@ -87,7 +94,9 @@ patternProperties:
 
     properties:
       compatible:
-        const: mediatek,mtk-vcodec-lat
+        enum:
+          - mediatek,mtk-vcodec-lat
+          - mediatek,mtk-vcodec-lat-soc
 
       reg:
         maxItems: 1
@@ -125,7 +134,6 @@ patternProperties:
     required:
       - compatible
       - reg
-      - interrupts
       - iommus
       - clocks
       - clock-names
@@ -196,6 +204,17 @@ required:
   - dma-ranges
   - ranges
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - mediatek,mtk-vcodec-lat
+
+then:
+  required:
+    - interrupts
+
 additionalProperties: false
 
 examples: