[v1,4/5] dt-bindings: mediatek: add mediatek, dsc.yaml for mt8195 SoC binding

Commit Message

Jason-JH Lin (林睿祥) July 22, 2021, 9:26 a.m. UTC

1. Add mediatek,dsc.yaml to decribe DSC module in details.
2. Add mt8195 SoC binding to mediatek,dsc.yaml.

Signed-off-by: jason-jh.lin <[e-mail]>
---
 .../display/mediatek/mediatek,dsc.yaml        | 73 +++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml

Patch

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
new file mode 100644
index 000000000000..f575532bfb21
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
@@ -0,0 +1,73 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,dsc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: mediatek DSC Controller Device Tree Bindings
+
+maintainers:
+  - CK Hu <[e-mail]>
+  - Jitao shi <[e-mail]>
+  - Jason-JH Lin <[e-mail]>
+
+description: |
+  The DSC standard is a specification of the algorithms used for
+  compressing and decompressing image display streams, including
+  the specification of the syntax and semantics of the compressed
+  video bit stream. DSC is designed for real-time systems with
+  real-time compression, transmission, decompression and Display.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: mediatek,mt8195-disp-dsc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: DSC Wrapper Clock
+
+  power-domains:
+    description: A phandle and PM domain specifier as defined by bindings of
+      the power controller specified by phandle. See
+      Documentation/devicetree/bindings/power/power-domain.yaml for details.
+
+  mediatek,gce-client-reg:
+    description: The register of display function block to be set by gce.
+      There are 4 arguments in this property, 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/include/dt-bindings/gce/<chip>-gce.h of each chips.
+      For example, The mediatek,gce-client-reg property of OVL in mt8173 is
+      <&gce SUBSYS_1400XXXX 0xc000 0x1000>.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    dsc0: disp_dsc_wrap@1c009000 {
+        compatible = "mediatek,mt8195-disp-dsc";
+        reg = <0 0x1c009000 0 0x1000>;
+        interrupts = <GIC_SPI 645 IRQ_TYPE_LEVEL_HIGH 0>;
+        power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS0>;
+        clocks = <&vdosys0 CLK_VDO0_DSC_WRAP0>;
+        mediatek,gce-client-reg =
+             <&gce1 SUBSYS_1c00XXXX 0x9000 0x1000>;
+    };
+
+...