mediatek,gamma.yaml (2572B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/mediatek/mediatek,gamma.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Mediatek display gamma correction 8 9maintainers: 10 - Chun-Kuang Hu <chunkuang.hu@kernel.org> 11 - Philipp Zabel <p.zabel@pengutronix.de> 12 13description: | 14 Mediatek display gamma correction, namely GAMMA, provides a nonlinear 15 operation used to adjust luminance in display system. 16 GAMMA 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,mt8173-disp-gamma 26 - items: 27 - const: mediatek,mt8183-disp-gamma 28 - items: 29 - enum: 30 - mediatek,mt8186-disp-gamma 31 - mediatek,mt8192-disp-gamma 32 - mediatek,mt8195-disp-gamma 33 - const: mediatek,mt8183-disp-gamma 34 35 reg: 36 maxItems: 1 37 38 interrupts: 39 maxItems: 1 40 41 power-domains: 42 description: A phandle and PM domain specifier as defined by bindings of 43 the power controller specified by phandle. See 44 Documentation/devicetree/bindings/power/power-domain.yaml for details. 45 46 clocks: 47 items: 48 - description: GAMMA Clock 49 50 mediatek,gce-client-reg: 51 description: The register of client driver can be configured by gce with 52 4 arguments defined in this property, such as phandle of gce, subsys id, 53 register offset and size. Each GCE subsys id is mapping to a client 54 defined in the header include/dt-bindings/gce/<chip>-gce.h. 55 $ref: /schemas/types.yaml#/definitions/phandle-array 56 maxItems: 1 57 58required: 59 - compatible 60 - reg 61 - interrupts 62 - power-domains 63 - clocks 64 65additionalProperties: false 66 67examples: 68 - | 69 #include <dt-bindings/interrupt-controller/arm-gic.h> 70 #include <dt-bindings/clock/mt8173-clk.h> 71 #include <dt-bindings/power/mt8173-power.h> 72 #include <dt-bindings/gce/mt8173-gce.h> 73 74 soc { 75 #address-cells = <2>; 76 #size-cells = <2>; 77 78 gamma@14016000 { 79 compatible = "mediatek,mt8173-disp-gamma"; 80 reg = <0 0x14016000 0 0x1000>; 81 interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_LOW>; 82 power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>; 83 clocks = <&mmsys CLK_MM_DISP_GAMMA>; 84 mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0x6000 0x1000>; 85 }; 86 };