[PATCH v4 10/17] dt-bindings: display: vop2: Add rk3588 support

[Andy Yan]

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

The vop2 on rk3588 is similar to which on rk356x
but with 4 video ports and need to reference
more grf modules.

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

---

Changes in v4:
- drop redundant description.
- use full stop at all the description's end.
- address Krzysztof's review in v3

Changes in v3:
- constrain properties in allOf:if:then
- some description updates

Changes in v2:
- fix errors when running 'make DT_CHECKER_FLAGS=-m dt_binding_check'

 .../display/rockchip/rockchip-vop2.yaml       | 100 ++++++++++++++----
 1 file changed, 81 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
index b60b90472d42..2531726af306 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml
@@ -8,8 +8,8 @@ title: Rockchip SoC display controller (VOP2)
 
 description:
   VOP2 (Video Output Processor v2) is the display controller for the Rockchip
-  series of SoCs which transfers the image data from a video memory
-  buffer to an external LCD interface.
+  series of SoCs which transfers the image data from a video memory buffer to
+  an external LCD interface.
 
 maintainers:
   - Sandy Huang <hjc at rock-chips.com>
@@ -20,6 +20,7 @@ properties:
     enum:
       - rockchip,rk3566-vop
       - rockchip,rk3568-vop
+      - rockchip,rk3588-vop
 
   reg:
     items:
@@ -27,8 +28,8 @@ properties:
           Must contain one entry corresponding to the base address and length
           of the register space.
       - description:
-          Can optionally contain a second entry corresponding to
-          the CRTC gamma LUT address.
+          Can optionally contain a second entry corresponding to the CRTC gamma
+          LUT address.
 
   reg-names:
     items:
@@ -41,45 +42,63 @@ properties:
       The VOP interrupt is shared by several interrupt sources, such as
       frame start (VSYNC), line flag and other status interrupts.
 
+  # See compatible-specific constraints below.
   clocks:
+    minItems: 5
     items:
-      - description: Clock for ddr buffer transfer.
-      - description: Clock for the ahb bus to R/W the phy regs.
+      - description: Clock for ddr buffer transfer via axi.
+      - description: Clock for the ahb bus to R/W the regs.
       - description: Pixel clock for video port 0.
       - description: Pixel clock for video port 1.
       - description: Pixel clock for video port 2.
+      - description: Pixel clock for video port 3.
+      - description: Peripheral(vop grf/dsi) clock.
 
   clock-names:
+    minItems: 5
     items:
       - const: aclk
       - const: hclk
       - const: dclk_vp0
       - const: dclk_vp1
       - const: dclk_vp2
+      - const: dclk_vp3
+      - const: pclk_vop
 
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
-      Phandle to GRF regs used for misc control
+      Phandle to GRF regs used for control the polarity of dclk/hsync/vsync of DPI,
+      also used for query vop memory bisr enable status, etc.
+
+  rockchip,vo1-grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to VO GRF regs used for control the polarity of dclk/hsync/vsync of hdmi
+      on rk3588.
+
+  rockchip,vop-grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to VOP GRF regs used for control data path between vopr and hdmi/edp.
+
+  rockchip,pmu:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to PMU GRF used for query vop memory bisr status on rk3588.
 
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
 
-    properties:
-      port at 0:
+    patternProperties:
+      "^port@[0-3]$":
         $ref: /schemas/graph.yaml#/properties/port
-        description:
-          Output endpoint of VP0
+        description: Output endpoint of VP0/1/2/3.
 
-      port at 1:
-        $ref: /schemas/graph.yaml#/properties/port
-        description:
-          Output endpoint of VP1
+    required:
+      - port at 0
 
-      port at 2:
-        $ref: /schemas/graph.yaml#/properties/port
-        description:
-          Output endpoint of VP2
+    unevaluatedProperties: false
 
   iommus:
     maxItems: 1
@@ -96,6 +115,49 @@ required:
   - clock-names
   - ports
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3588-vop
+    then:
+      properties:
+        clocks:
+          minItems: 7
+        clock-names:
+          minItems: 7
+
+        ports:
+          required:
+            - port at 0
+            - port at 1
+            - port at 2
+            - port at 3
+
+      required:
+        - rockchip,grf
+        - rockchip,vo1-grf
+        - rockchip,vop-grf
+        - rockchip,pmu
+
+    else:
+      properties:
+        rockchip,vo1-grf: false
+        rockchip,vop-grf: false
+        rockchip,pmu: false
+
+        clocks:
+          maxItems: 5
+        clock-names:
+          maxItems: 5
+
+        ports:
+          required:
+            - port at 0
+            - port at 1
+            - port at 2
+
 additionalProperties: false
 
 examples:
-- 
2.34.1