[PATCH v15 12/13] 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>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

(no changes since v13)

Changes in v13:
- Use maxItems constraint for clocks in allOf block

Changes in v12:
- Split from patch 10/13

Changes in v11:
- Remove redundant min/maxItems constraint

Changes in v10:
- Move interrupt-names back to top level
- Add constraint of interrupts for all platform
- Add constraint for all grf phandles
- Reorder some properties

Changes in v9:
- Drop 'vop-' prefix of interrupt-names.
- Add blank line between DT properties
- Remove list interrupt-names in top level

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       | 61 ++++++++++++++++++-
 1 file changed, 58 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
index 083eadcf0588..f546d481b7e5 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
@@ -21,6 +21,7 @@ properties:
     enum:
       - rockchip,rk3566-vop
       - rockchip,rk3568-vop
+      - rockchip,rk3576-vop
       - rockchip,rk3588-vop
 
   reg:
@@ -38,10 +39,21 @@ 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: sys
+      - const: vp0
+      - const: vp1
+      - const: vp2
 
   # See compatible-specific constraints below.
   clocks:
@@ -136,6 +148,11 @@ allOf:
         clock-names:
           maxItems: 5
 
+        interrupts:
+          maxItems: 1
+
+        interrupt-names: false
+
         ports:
           required:
             - port@0
@@ -149,6 +166,39 @@ allOf:
       required:
         - rockchip,grf
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3576-vop
+    then:
+      properties:
+        clocks:
+          maxItems: 5
+
+        clock-names:
+          maxItems: 5
+
+        interrupts:
+          minItems: 4
+
+        interrupt-names:
+          minItems: 4
+
+        ports:
+          required:
+            - port@0
+            - port@1
+            - port@2
+
+        rockchip,vo1-grf: false
+        rockchip,vop-grf: false
+
+      required:
+        - rockchip,grf
+        - rockchip,pmu
+
   - if:
       properties:
         compatible:
@@ -164,6 +214,11 @@ allOf:
           minItems: 7
           maxItems: 9
 
+        interrupts:
+          maxItems: 1
+
+        interrupt-names: false
+
         ports:
           required:
             - port@0
-- 
2.34.1