[PATCH v8 8/9] dt-bindings: display: vop2: Add rk3576 support

[Andy Yan <andyshrk@163.com>]

From: Andy Yan <andy.yan@rock-chips.com>

Add vop found on rk3576, the main difference between rk3576 and the
previous vop is that each VP has its own interrupt line.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>

---

Changes in v8:
- Fix dt_binding_check errors
- ordered by soc name
- Link to the previous version:
  https://lore.kernel.org/linux-rockchip/6pn3qjxotdtpzucpul24yro7ppddezwuizneovqvmgdwyv2j7p@ztg4mqyiqmjf/T/#u

Changes in v4:
- describe constraint SOC by SOC, as interrupts of rk3576 is very
  different from others
- Drop Krzysztof's Reviewed-by, as this version changed a lot.

Changes in v3:
- ordered by soc name
- Add description for newly added interrupt

Changes in v2:
- Add dt bindings

 .../display/rockchip/rockchip-vop2.yaml       | 81 ++++++++++++++-----
 1 file changed, 63 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
index 2531726af306..4cdd9cced10c 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
@@ -20,6 +20,7 @@ properties:
     enum:
       - rockchip,rk3566-vop
       - rockchip,rk3568-vop
+      - rockchip,rk3576-vop
       - rockchip,rk3588-vop
 
   reg:
@@ -37,10 +38,21 @@ properties:
       - const: gamma-lut
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 4
     description:
-      The VOP interrupt is shared by several interrupt sources, such as
-      frame start (VSYNC), line flag and other status interrupts.
+      For VOP version under rk3576, the interrupt is shared by several interrupt
+      sources, such as frame start (VSYNC), line flag and other interrupt status.
+      For VOP version from rk3576 there is a system interrupt for bus error, and
+      every video port has it's independent interrupts for vsync and other video
+      port related error interrupts.
+
+  interrupt-names:
+    items:
+      - const: vop-sys
+      - const: vop-vp0
+      - const: vop-vp1
+      - const: vop-vp2
 
   # See compatible-specific constraints below.
   clocks:
@@ -120,43 +132,76 @@ allOf:
       properties:
         compatible:
           contains:
-            const: rockchip,rk3588-vop
+            enum:
+              - rockchip,rk3566-vop
+              - rockchip,rk3568-vop
     then:
       properties:
         clocks:
-          minItems: 7
+          minItems: 5
         clock-names:
-          minItems: 7
-
+          minItems: 5
         ports:
           required:
             - port@0
             - port@1
             - port@2
-            - port@3
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3576-vop
+    then:
+      properties:
+        clocks:
+          minItems: 5
+        clock-names:
+          minItems: 5
+        ports:
+          required:
+            - port@0
+            - port@1
+            - port@2
+        interrupts:
+          items:
+            - description: vop system interrupt, such as axi bus error
+            - description: interrupts for video port0, such as vsync, dsp_hold.
+            - description: interrupts for video port1, such as vsync, dsp_hold.
+            - description: interrupts for video port2, such as vsync, dsp_hold.
+        interrupt-names:
+          items:
+            - const: vop-sys
+            - const: vop-vp0
+            - const: vop-vp1
+            - const: vop-vp2
       required:
         - rockchip,grf
-        - rockchip,vo1-grf
-        - rockchip,vop-grf
         - rockchip,pmu
 
-    else:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3588-vop
+    then:
       properties:
-        rockchip,vo1-grf: false
-        rockchip,vop-grf: false
-        rockchip,pmu: false
-
         clocks:
-          maxItems: 5
+          minItems: 7
         clock-names:
-          maxItems: 5
-
+          minItems: 7
         ports:
           required:
             - port@0
             - port@1
             - port@2
+            - port@3
+      required:
+        - rockchip,grf
+        - rockchip,vo1-grf
+        - rockchip,vop-grf
+        - rockchip,pmu
 
 additionalProperties: false
 
-- 
2.34.1