[PATCH v8 03/19] dt-bindings: display: imx: Add i.MX8qxp Display Controller display engine

[Liu Ying <victor.liu@nxp.com>]

i.MX8qxp Display Controller display engine consists of all processing units
that operate in a display clock domain.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
---
v8:
* Drop instance numbers from compatible strings. This means switching back to
  the patch in v4. So, add Rob's previous R-b tag back. (Dmitry)

v7:
* Drop DT alias documentations and add instance numbers to compatible strings.
  (Rob)

v6:
* No change.

v5:
* Document aliases.  Drop Rob's previous R-b tag. (Maxime)

v4:
* Collect Rob's R-b tag.

v3:
* No change.

v2:
* Drop fsl,dc-*-id DT properties. (Krzysztof)
* Drop port property. (Krzysztof)
* Fix register range sizes in example.

 .../imx/fsl,imx8qxp-dc-display-engine.yaml    | 152 ++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml

diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml
new file mode 100644
index 000000000000..91f3bb77d8d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-display-engine.yaml
@@ -0,0 +1,152 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-display-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Display Engine
+
+description:
+  All Processing Units that operate in a display clock domain. Pixel pipeline
+  is driven by a video timing and cannot be stalled. Implements all display
+  specific processing.
+
+maintainers:
+  - Liu Ying <victor.liu@nxp.com>
+
+properties:
+  compatible:
+    const: fsl,imx8qxp-dc-display-engine
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: top
+      - const: cfg
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 3
+
+  interrupt-names:
+    items:
+      - const: shdload
+      - const: framecomplete
+      - const: seqcomplete
+
+  power-domains:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+patternProperties:
+  "^dither@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-dither
+
+  "^framegen@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-framegen
+
+  "^gammacor@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-gammacor
+
+  "^matrix@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-matrix
+
+  "^signature@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-signature
+
+  "^tcon@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-tcon
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - interrupt-names
+  - power-domains
+  - "#address-cells"
+  - "#size-cells"
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8-lpcg.h>
+    #include <dt-bindings/firmware/imx/rsrc.h>
+
+    display-engine@5618b400 {
+        compatible = "fsl,imx8qxp-dc-display-engine";
+        reg = <0x5618b400 0x14>, <0x5618b800 0x1c00>;
+        reg-names = "top", "cfg";
+        interrupt-parent = <&dc0_intc>;
+        interrupts = <15>, <16>, <17>;
+        interrupt-names = "shdload", "framecomplete", "seqcomplete";
+        power-domains = <&pd IMX_SC_R_DC_0_PLL_0>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        framegen@5618b800 {
+            compatible = "fsl,imx8qxp-dc-framegen";
+            reg = <0x5618b800 0x98>;
+            clocks = <&dc0_disp_lpcg IMX_LPCG_CLK_0>;
+            interrupt-parent = <&dc0_intc>;
+            interrupts = <18>, <19>, <20>, <21>, <41>, <42>, <43>, <44>;
+            interrupt-names = "int0", "int1", "int2", "int3",
+                              "primsync_on", "primsync_off",
+                              "secsync_on", "secsync_off";
+        };
+
+        tcon@5618c800 {
+            compatible = "fsl,imx8qxp-dc-tcon";
+            reg = <0x5618c800 0x588>;
+
+            port {
+                dc0_disp0_dc0_pixel_combiner_ch0: endpoint {
+                    remote-endpoint = <&dc0_pixel_combiner_ch0_dc0_disp0>;
+                };
+            };
+        };
+    };
-- 
2.34.1