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Diffstat (limited to 'Documentation/devicetree/bindings/mfd/syscon.txt')
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diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon.txt new file mode 100644 index 00000000000..fe8150bb324 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/syscon.txt | |||
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1 | * System Controller Registers R/W driver | ||
2 | |||
3 | System controller node represents a register region containing a set | ||
4 | of miscellaneous registers. The registers are not cohesive enough to | ||
5 | represent as any specific type of device. The typical use-case is for | ||
6 | some other node's driver, or platform-specific code, to acquire a | ||
7 | reference to the syscon node (e.g. by phandle, node path, or search | ||
8 | using a specific compatible value), interrogate the node (or associated | ||
9 | OS driver) to determine the location of the registers, and access the | ||
10 | registers directly. | ||
11 | |||
12 | Required properties: | ||
13 | - compatible: Should contain "syscon". | ||
14 | - reg: the register region can be accessed from syscon | ||
15 | |||
16 | Examples: | ||
17 | gpr: iomuxc-gpr@020e0000 { | ||
18 | compatible = "fsl,imx6q-iomuxc-gpr", "syscon"; | ||
19 | reg = <0x020e0000 0x38>; | ||
20 | }; | ||