1* Texas Instrument OMAP SCM bandgap bindings 2 3In the System Control Module, OMAP supplies a voltage reference 4and a temperature sensor feature that are gathered in the band 5gap voltage and temperature sensor (VBGAPTS) module. The band 6gap provides current and voltage reference for its internal 7circuits and other analog IP blocks. The analog-to-digital 8converter (ADC) produces an output value that is proportional 9to the silicon temperature. 10 11Required 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 20the talert signal is routed to; 21Specific: 22- gpios : this entry should be used to inform which GPIO 23line the tshut signal is routed to. The informed GPIO will 24be treated as an IRQ; 25- regs : this entry must also be specified and it is specific 26to each bandgap version, because the mapping may change from 27soc to soc, apart of depending on available features. 28 29Example: 30OMAP34xx: 31bandgap { 32 reg = <0x48002524 0x4>; 33 compatible = "ti,omap34xx-bandgap"; 34}; 35 36OMAP36xx: 37bandgap { 38 reg = <0x48002524 0x4>; 39 compatible = "ti,omap36xx-bandgap"; 40}; 41 42OMAP4430: 43bandgap { 44 reg = <0x4a002260 0x4 0x4a00232C 0x4>; 45 compatible = "ti,omap4430-bandgap"; 46}; 47 48OMAP4460: 49bandgap { 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 58OMAP4470: 59bandgap { 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 68OMAP5430: 69bandgap { 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 78DRA752: 79bandgap { 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}; 89