mediatek,ovl.yaml (3129B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/mediatek/mediatek,ovl.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Mediatek display overlay 8 9maintainers: 10 - Chun-Kuang Hu <chunkuang.hu@kernel.org> 11 - Philipp Zabel <p.zabel@pengutronix.de> 12 13description: | 14 Mediatek display overlay, namely OVL, can do alpha blending from 15 the memory. 16 OVL 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 21properties: 22 compatible: 23 oneOf: 24 - items: 25 - const: mediatek,mt2701-disp-ovl 26 - items: 27 - const: mediatek,mt8173-disp-ovl 28 - items: 29 - const: mediatek,mt8183-disp-ovl 30 - items: 31 - const: mediatek,mt8192-disp-ovl 32 - items: 33 - enum: 34 - mediatek,mt7623-disp-ovl 35 - mediatek,mt2712-disp-ovl 36 - const: mediatek,mt2701-disp-ovl 37 - items: 38 - enum: 39 - mediatek,mt8195-disp-ovl 40 - const: mediatek,mt8183-disp-ovl 41 - items: 42 - enum: 43 - mediatek,mt8186-disp-ovl 44 - const: mediatek,mt8192-disp-ovl 45 46 reg: 47 maxItems: 1 48 49 interrupts: 50 maxItems: 1 51 52 power-domains: 53 description: A phandle and PM domain specifier as defined by bindings of 54 the power controller specified by phandle. See 55 Documentation/devicetree/bindings/power/power-domain.yaml for details. 56 57 clocks: 58 items: 59 - description: OVL Clock 60 61 iommus: 62 description: 63 This property should point to the respective IOMMU block with master port as argument, 64 see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. 65 66 mediatek,gce-client-reg: 67 description: The register of client driver can be configured by gce with 68 4 arguments defined in this property, such as phandle of gce, subsys id, 69 register offset and size. Each GCE subsys id is mapping to a client 70 defined in the header include/dt-bindings/gce/<chip>-gce.h. 71 $ref: /schemas/types.yaml#/definitions/phandle-array 72 maxItems: 1 73 74required: 75 - compatible 76 - reg 77 - interrupts 78 - power-domains 79 - clocks 80 - iommus 81 82additionalProperties: false 83 84examples: 85 - | 86 #include <dt-bindings/interrupt-controller/arm-gic.h> 87 #include <dt-bindings/clock/mt8173-clk.h> 88 #include <dt-bindings/power/mt8173-power.h> 89 #include <dt-bindings/gce/mt8173-gce.h> 90 #include <dt-bindings/memory/mt8173-larb-port.h> 91 92 soc { 93 #address-cells = <2>; 94 #size-cells = <2>; 95 96 ovl0: ovl@1400c000 { 97 compatible = "mediatek,mt8173-disp-ovl"; 98 reg = <0 0x1400c000 0 0x1000>; 99 interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_LOW>; 100 power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; 101 clocks = <&mmsys CLK_MM_DISP_OVL0>; 102 iommus = <&iommu M4U_PORT_DISP_OVL0>; 103 mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0xc000 0x1000>; 104 }; 105 };