1SMI (Smart Multimedia Interface) Local Arbiter 2 3The hardware block diagram please check bindings/iommu/mediatek,iommu.txt 4 5Required properties: 6- compatible : must be one of : 7 "mediatek,mt2701-smi-larb" 8 "mediatek,mt2712-smi-larb" 9 "mediatek,mt6779-smi-larb" 10 "mediatek,mt7623-smi-larb", "mediatek,mt2701-smi-larb" 11 "mediatek,mt8167-smi-larb" 12 "mediatek,mt8173-smi-larb" 13 "mediatek,mt8183-smi-larb" 14- reg : the register and size of this local arbiter. 15- mediatek,smi : a phandle to the smi_common node. 16- power-domains : a phandle to the power domain of this local arbiter. 17- clocks : Must contain an entry for each entry in clock-names. 18- clock-names: must contain 2 entries, as follows: 19 - "apb" : Advanced Peripheral Bus clock, It's the clock for setting 20 the register. 21 - "smi" : It's the clock for transfer data and command. 22 and this optional clock name: 23 - "gals": the clock for GALS(Global Async Local Sync). 24 Here is the list which has this GALS: mt8183. 25 26Required property for mt2701, mt2712, mt6779, mt7623 and mt8167: 27- mediatek,larb-id :the hardware id of this larb. 28 29Example: 30 larb1: larb@16010000 { 31 compatible = "mediatek,mt8173-smi-larb"; 32 reg = <0 0x16010000 0 0x1000>; 33 mediatek,smi = <&smi_common>; 34 power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>; 35 clocks = <&vdecsys CLK_VDEC_CKEN>, 36 <&vdecsys CLK_VDEC_LARB_CKEN>; 37 clock-names = "apb", "smi"; 38 }; 39 40Example for mt2701: 41 larb0: larb@14010000 { 42 compatible = "mediatek,mt2701-smi-larb"; 43 reg = <0 0x14010000 0 0x1000>; 44 mediatek,smi = <&smi_common>; 45 mediatek,larb-id = <0>; 46 clocks = <&mmsys CLK_MM_SMI_LARB0>, 47 <&mmsys CLK_MM_SMI_LARB0>; 48 clock-names = "apb", "smi"; 49 power-domains = <&scpsys MT2701_POWER_DOMAIN_DISP>; 50 }; 51