projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8feaf0ce EV |
1 | * Texas Instrument OMAP SCM bandgap bindings |
| 2 | ||
| 3 | In the System Control Module, OMAP supplies a voltage reference | |
| 4 | and a temperature sensor feature that are gathered in the band | |
| 5 | gap voltage and temperature sensor (VBGAPTS) module. The band | |
| 6 | gap provides current and voltage reference for its internal | |
| 7 | circuits and other analog IP blocks. The analog-to-digital | |
| 8 | converter (ADC) produces an output value that is proportional | |
| 9 | to the silicon temperature. | |
| 10 | ||
| 11 | Required properties: | |
| 12 | - compatible : Should be: | |
| 13 | - "ti,omap4460-control-bandgap" : for OMAP4460 bandgap | |
| 14 | - "ti,omap5430-control-bandgap" : for OMAP5430 bandgap | |
| 15 | - interrupts : this entry should indicate which interrupt line | |
| 16 | the talert signal is routed to; | |
| 17 | Specific: | |
| 18 | - ti,tshut-gpio : this entry should be used to inform which GPIO | |
| 19 | line the tshut signal is routed to; | |
| 20 | ||
| 21 | Example: | |
| 22 | ||
| 23 | bandgap { | |
| 24 | reg = <0x4a002260 0x4 | |
| 25 | 0x4a00232C 0x4 | |
| 26 | 0x4a002378 0x18>; | |
| 27 | compatible = "ti,omap4460-control-bandgap"; | |
| 28 | interrupts = <0 126 4>; /* talert */ | |
| 29 | ti,tshut-gpio = <86>; | |
| 30 | }; |