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[linux/fpc-iii.git] / Documentation / devicetree / bindings / clock / silabs,si570.txt
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1 Binding for Silicon Labs 570, 571, 598 and 599 programmable
2 I2C clock generators.
4 Reference
5 This binding uses the common clock binding[1]. Details about the devices can be
6 found in the data sheets[2][3].
8 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
9 [2] Si570/571 Data Sheet
10     http://www.silabs.com/Support%20Documents/TechnicalDocs/si570.pdf
11 [3] Si598/599 Data Sheet
12     http://www.silabs.com/Support%20Documents/TechnicalDocs/si598-99.pdf
14 Required properties:
15  - compatible: Shall be one of "silabs,si570", "silabs,si571",
16                                "silabs,si598", "silabs,si599"
17  - reg: I2C device address.
18  - #clock-cells: From common clock bindings: Shall be 0.
19  - factory-fout: Factory set default frequency. This frequency is part specific.
20                  The correct frequency for the part used has to be provided in
21                  order to generate the correct output frequencies. For more
22                  details, please refer to the data sheet.
23  - temperature-stability: Temperature stability of the device in PPM. Should be
24                           one of: 7, 20, 50 or 100.
26 Optional properties:
27  - clock-output-names: From common clock bindings. Recommended to be "si570".
28  - clock-frequency: Output frequency to generate. This defines the output
29                     frequency set during boot. It can be reprogrammed during
30                     runtime through the common clock framework.
32 Example:
33         si570: clock-generator@5d {
34                 #clock-cells = <0>;
35                 compatible = "silabs,si570";
36                 temperature-stability = <50>;
37                 reg = <0x5d>;
38                 factory-fout = <156250000>;
39         };