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