[PATCH v1 1/6] dt-bindings: display/mediatek: mt8188: Add documentations for VDOSYS1

[Hsiao Chien Sung <shawn.sung@mediatek.com>]

Add device tree documentations for MT8188 VDOSYS1.

Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
---
 .../bindings/arm/mediatek/mediatek,mmsys.yaml |  1 +
 .../display/mediatek/mediatek,ethdr.yaml      |  5 +-
 .../display/mediatek/mediatek,mdp-rdma.yaml   |  5 +-
 .../display/mediatek/mediatek,merge.yaml      |  1 +
 .../display/mediatek/mediatek,padding.yaml    | 80 +++++++++++++++++++
 5 files changed, 90 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
index 536f5a5ebd24..642fa2e4736e 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
@@ -32,6 +32,7 @@ properties:
               - mediatek,mt8183-mmsys
               - mediatek,mt8186-mmsys
               - mediatek,mt8188-vdosys0
+              - mediatek,mt8188-vdosys1
               - mediatek,mt8192-mmsys
               - mediatek,mt8195-vdosys1
               - mediatek,mt8195-vppsys0
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
index 801fa66ae615..e3f740ab0564 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
@@ -23,7 +23,10 @@ description:

 properties:
   compatible:
-    const: mediatek,mt8195-disp-ethdr
+    oneOf:
+      - enum:
+        - mediatek,mt8188-disp-ethdr
+        - mediatek,mt8195-disp-ethdr

   reg:
     maxItems: 7
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
index dd12e2ff685c..07c345fa9178 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
@@ -21,7 +21,10 @@ description:

 properties:
   compatible:
-    const: mediatek,mt8195-vdo1-rdma
+    oneOf:
+      - enum:
+        - mediatek,mt8188-vdo1-rdma
+        - mediatek,mt8195-vdo1-rdma

   reg:
     maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
index 2f8e2f4dc3b8..600f1b4608f8 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
@@ -23,6 +23,7 @@ properties:
     oneOf:
       - enum:
           - mediatek,mt8173-disp-merge
+          - mediatek,mt8188-disp-merge
           - mediatek,mt8195-disp-merge

   reg:
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml
new file mode 100644
index 000000000000..8a9e74cbf6dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,padding.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,padding.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek PADDING
+
+maintainers:
+  - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+  - Philipp Zabel <p.zabel@pengutronix.de>
+
+description:
+  MediaTek PADDING provides ability to VDOSYS1 to fill pixels to
+  width and height of a layer with a specified color.
+  Since MIXER in VDOSYS1 requires the width of a layer to be 2-pixel-align, or
+  4-pixel-align when ETHDR is enabled, we need PADDING to deal with odd width.
+  Please notice that even if the PADDING is in bypass mode,
+  settings in the registers must be cleared to 0, otherwise
+  undeinfed behaviors could happen.
+
+properties:
+  compatible:
+    const: mediatek,mt8188-vdo1-padding
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: RDMA Clock
+
+  mediatek,gce-client-reg:
+    description:
+      The register of display function block to be set by gce. There are 4 arguments,
+      such as gce node, subsys id, offset and register size. The subsys id that is
+      mapping to the register of display function blocks is defined in the gce header
+      include/dt-bindings/gce/<chip>-gce.h of each chips.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      items:
+        - description: phandle of GCE
+        - description: GCE subsys id
+        - description: register offset
+        - description: register size
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - power-domains
+  - clocks
+  - mediatek,gce-client-reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/mt8188-clk.h>
+    #include <dt-bindings/power/mt8188-power.h>
+    #include <dt-bindings/gce/mt8188-gce.h>
+    #include <dt-bindings/memory/mt8188-memory-port.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        vdo1_padding0: vdo1_padding0@1c11d000 {
+            compatible = "mediatek,mt8188-vdo1-padding";
+            reg = <0 0x1c11d000 0 0x1000>;
+            clocks = <&vdosys1 CLK_VDO1_PADDING0>;
+            power-domains = <&spm MT8188_POWER_DOMAIN_VDOSYS1>;
+            mediatek,gce-client-reg =
+                <&gce0 SUBSYS_1c11XXXX 0xd000 0x1000>;
+        };
+    };
--
2.18.0