| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mfd/syscon.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: System Controller Registers R/W |
| 8 | |
| 9 | description: | |
| 10 | System controller node represents a register region containing a set |
| 11 | of miscellaneous registers. The registers are not cohesive enough to |
| 12 | represent as any specific type of device. The typical use-case is |
| 13 | for some other node's driver, or platform-specific code, to acquire |
| 14 | a reference to the syscon node (e.g. by phandle, node path, or |
| 15 | search using a specific compatible value), interrogate the node (or |
| 16 | associated OS driver) to determine the location of the registers, |
| 17 | and access the registers directly. |
| 18 | |
| 19 | maintainers: |
| 20 | - Lee Jones <lee@kernel.org> |
| 21 | |
| 22 | select: |
| 23 | properties: |
| 24 | compatible: |
| 25 | contains: |
| 26 | enum: |
| 27 | - syscon |
| 28 | |
| 29 | required: |
| 30 | - compatible |
| 31 | |
| 32 | properties: |
| 33 | compatible: |
| 34 | anyOf: |
| 35 | - items: |
| 36 | - enum: |
| 37 | - allwinner,sun8i-a83t-system-controller |
| 38 | - allwinner,sun8i-h3-system-controller |
| 39 | - allwinner,sun8i-v3s-system-controller |
| 40 | - allwinner,sun50i-a64-system-controller |
| 41 | - amd,pensando-elba-syscon |
| 42 | - brcm,cru-clkset |
| 43 | - freecom,fsg-cs2-system-controller |
| 44 | - fsl,imx93-aonmix-ns-syscfg |
| 45 | - fsl,imx93-wakeupmix-syscfg |
| 46 | - hisilicon,dsa-subctrl |
| 47 | - hisilicon,hi6220-sramctrl |
| 48 | - hisilicon,pcie-sas-subctrl |
| 49 | - hisilicon,peri-subctrl |
| 50 | - hpe,gxp-sysreg |
| 51 | - intel,lgm-syscon |
| 52 | - loongson,ls1b-syscon |
| 53 | - loongson,ls1c-syscon |
| 54 | - marvell,armada-3700-usb2-host-misc |
| 55 | - mediatek,mt8135-pctl-a-syscfg |
| 56 | - mediatek,mt8135-pctl-b-syscfg |
| 57 | - mediatek,mt8365-syscfg |
| 58 | - microchip,lan966x-cpu-syscon |
| 59 | - microchip,sparx5-cpu-syscon |
| 60 | - mstar,msc313-pmsleep |
| 61 | - nuvoton,ma35d1-sys |
| 62 | - nuvoton,wpcm450-shm |
| 63 | - rockchip,px30-qos |
| 64 | - rockchip,rk3036-qos |
| 65 | - rockchip,rk3066-qos |
| 66 | - rockchip,rk3128-qos |
| 67 | - rockchip,rk3228-qos |
| 68 | - rockchip,rk3288-qos |
| 69 | - rockchip,rk3368-qos |
| 70 | - rockchip,rk3399-qos |
| 71 | - rockchip,rk3568-qos |
| 72 | - rockchip,rk3588-qos |
| 73 | - rockchip,rv1126-qos |
| 74 | - starfive,jh7100-sysmain |
| 75 | - ti,am654-dss-oldi-io-ctrl |
| 76 | |
| 77 | - const: syscon |
| 78 | |
| 79 | - contains: |
| 80 | const: syscon |
| 81 | minItems: 2 |
| 82 | maxItems: 5 # Should be enough |
| 83 | |
| 84 | reg: |
| 85 | maxItems: 1 |
| 86 | |
| 87 | reg-io-width: |
| 88 | description: | |
| 89 | The size (in bytes) of the IO accesses that should be performed |
| 90 | on the device. |
| 91 | enum: [1, 2, 4, 8] |
| 92 | |
| 93 | resets: |
| 94 | maxItems: 1 |
| 95 | |
| 96 | hwlocks: |
| 97 | maxItems: 1 |
| 98 | description: |
| 99 | Reference to a phandle of a hardware spinlock provider node. |
| 100 | |
| 101 | required: |
| 102 | - compatible |
| 103 | - reg |
| 104 | |
| 105 | allOf: |
| 106 | - if: |
| 107 | properties: |
| 108 | compatible: |
| 109 | contains: |
| 110 | const: simple-mfd |
| 111 | then: |
| 112 | properties: |
| 113 | compatible: |
| 114 | minItems: 3 |
| 115 | maxItems: 5 |
| 116 | |
| 117 | additionalProperties: true |
| 118 | |
| 119 | examples: |
| 120 | - | |
| 121 | syscon: syscon@1c00000 { |
| 122 | compatible = "allwinner,sun8i-h3-system-controller", "syscon"; |
| 123 | reg = <0x01c00000 0x1000>; |
| 124 | }; |
| 125 | ... |