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