Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/mediatek/mediatek,ovl-2l.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Mediatek display overlay 2 layer
   8
   9 maintainers:
  10   - Chun-Kuang Hu <chunkuang.hu@kernel.org>
  11   - Philipp Zabel <p.zabel@pengutronix.de>
  12
  13 description: |
  14   Mediatek display overlay 2 layer, namely OVL-2L, provides 2 more layer
  15   for OVL.
  16   OVL-2L device node must be siblings to the central MMSYS_CONFIG node.
  17   For a description of the MMSYS_CONFIG binding, see
  18   Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
  19   for details.
  20
  21 properties:
  22   compatible:
  23     oneOf:
  24       - items:
  25           - const: mediatek,mt8183-disp-ovl-2l
  26       - items:
  27           - const: mediatek,mt8192-disp-ovl-2l
  28       - items:
  29           - enum:
  30               - mediatek,mt8186-disp-ovl-2l
  31           - const: mediatek,mt8192-disp-ovl-2l
  32
  33   reg:
  34     maxItems: 1
  35
  36   interrupts:
  37     maxItems: 1
  38
  39   power-domains:
  40     description: A phandle and PM domain specifier as defined by bindings of
  41       the power controller specified by phandle. See
  42       Documentation/devicetree/bindings/power/power-domain.yaml for details.
  43
  44   clocks:
  45     items:
  46       - description: OVL-2L Clock
  47
  48   iommus:
  49     description:
  50       This property should point to the respective IOMMU block with master port as argument,
  51       see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
  52
  53   mediatek,gce-client-reg:
  54     description: The register of client driver can be configured by gce with
  55       4 arguments defined in this property, such as phandle of gce, subsys id,
  56       register offset and size. Each GCE subsys id is mapping to a client
  57       defined in the header include/dt-bindings/gce/<chip>-gce.h.
  58     $ref: /schemas/types.yaml#/definitions/phandle-array
  59     maxItems: 1
  60
  61 required:
  62   - compatible
  63   - reg
  64   - interrupts
  65   - power-domains
  66   - clocks
  67   - iommus
  68
  69 additionalProperties: false
  70
  71 examples:
  72   - |
  73     #include <dt-bindings/interrupt-controller/arm-gic.h>
  74     #include <dt-bindings/clock/mt8183-clk.h>
  75     #include <dt-bindings/power/mt8183-power.h>
  76     #include <dt-bindings/gce/mt8183-gce.h>
  77     #include <dt-bindings/memory/mt8183-larb-port.h>
  78
  79     soc {
  80         #address-cells = <2>;
  81         #size-cells = <2>;
  82
  83         ovl_2l0: ovl@14009000 {
  84             compatible = "mediatek,mt8183-disp-ovl-2l";
  85             reg = <0 0x14009000 0 0x1000>;
  86             interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_LOW>;
  87             power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
  88             clocks = <&mmsys CLK_MM_DISP_OVL0_2L>;
  89             iommus = <&iommu M4U_PORT_DISP_2L_OVL0_LARB0>;
  90             mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x9000 0x1000>;
  91         };
  92     };