ti_soc_thermal.txt

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    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,omap34xx-bandgap" : for OMAP34xx bandgap
   14   - "ti,omap36xx-bandgap" : for OMAP36xx bandgap
   15   - "ti,omap4430-bandgap" : for OMAP4430 bandgap
   16   - "ti,omap4460-bandgap" : for OMAP4460 bandgap
   17   - "ti,omap4470-bandgap" : for OMAP4470 bandgap
   18   - "ti,omap5430-bandgap" : for OMAP5430 bandgap
   19 - interrupts : this entry should indicate which interrupt line
   20 the talert signal is routed to;
   21 Specific:
   22 - gpios : this entry should be used to inform which GPIO
   23 line the tshut signal is routed to. The informed GPIO will
   24 be treated as an IRQ;
   25 - regs : this entry must also be specified and it is specific
   26 to each bandgap version, because the mapping may change from
   27 soc to soc, apart of depending on available features.
   28 
   29 Example:
   30 OMAP34xx:
   31 bandgap {
   32         reg = <0x48002524 0x4>;
   33         compatible = "ti,omap34xx-bandgap";
   34 };
   35 
   36 OMAP36xx:
   37 bandgap {
   38         reg = <0x48002524 0x4>;
   39         compatible = "ti,omap36xx-bandgap";
   40 };
   41 
   42 OMAP4430:
   43 bandgap {
   44         reg = <0x4a002260 0x4 0x4a00232C 0x4>;
   45         compatible = "ti,omap4430-bandgap";
   46 };
   47 
   48 OMAP4460:
   49 bandgap {
   50         reg = <0x4a002260 0x4
   51                 0x4a00232C 0x4
   52                 0x4a002378 0x18>;
   53         compatible = "ti,omap4460-bandgap";
   54         interrupts = <0 126 4>; /* talert */
   55         gpios = <&gpio3 22 0>; /* tshut */
   56 };
   57 
   58 OMAP4470:
   59 bandgap {
   60         reg = <0x4a002260 0x4
   61                 0x4a00232C 0x4
   62                 0x4a002378 0x18>;
   63         compatible = "ti,omap4470-bandgap";
   64         interrupts = <0 126 4>; /* talert */
   65         gpios = <&gpio3 22 0>; /* tshut */
   66 };
   67 
   68 OMAP5430:
   69 bandgap {
   70         reg = <0x4a0021e0 0xc
   71                 0x4a00232c 0xc
   72                 0x4a002380 0x2c
   73                 0x4a0023C0 0x3c>;
   74         compatible = "ti,omap5430-bandgap";
   75         interrupts = <0 126 4>; /* talert */
   76 };
   77 
   78 DRA752:
   79 bandgap {
   80         reg = <0x4a0021e0 0xc
   81                 0x4a00232c 0xc
   82                 0x4a002380 0x2c
   83                 0x4a0023C0 0x3c
   84                 0x4a002564 0x8
   85                 0x4a002574 0x50>;
   86         compatible = "ti,dra752-bandgap";
   87         interrupts = <0 126 4>; /* talert */
   88 };

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