arch/arm/boot/dts/overlays/maxtherm-overlay.dts

   1 /*
   2  * Universal device tree overlay for SPI devices
   3  */
   4
   5 /dts-v1/;
   6 /plugin/;
   7
   8 #include <dt-bindings/iio/temperature/thermocouple.h>
   9
  10 / {
  11         compatible = "brcm,bcm2835";
  12
  13         fragment@0 {
  14                 target = <&spidev0>;
  15                 __dormant__ {
  16                         status = "disabled";
  17                 };
  18         };
  19
  20         fragment@1 {
  21                 target = <&spidev1>;
  22                 __dormant__ {
  23                         status = "disabled";
  24                 };
  25         };
  26
  27         fragment@2 {
  28                 target-path = "spi1/spidev@0";
  29                 __dormant__ {
  30                         status = "disabled";
  31                 };
  32         };
  33
  34         fragment@3 {
  35                 target-path = "spi1/spidev@1";
  36                 __dormant__ {
  37                         status = "disabled";
  38                 };
  39         };
  40
  41         fragment@4 {
  42                 target-path = "spi1/spidev@2";
  43                 __dormant__ {
  44                         status = "disabled";
  45                 };
  46         };
  47
  48         fragment@5 {
  49                 target-path = "spi2/spidev@0";
  50                 __dormant__ {
  51                         status = "disabled";
  52                 };
  53         };
  54
  55         fragment@6 {
  56                 target-path = "spi2/spidev@1";
  57                 __dormant__ {
  58                         status = "disabled";
  59                 };
  60         };
  61
  62         fragment@7 {
  63                 target-path = "spi2/spidev@2";
  64                 __dormant__ {
  65                         status = "disabled";
  66                 };
  67         };
  68
  69         maxfrag: fragment@8 {
  70                 target = <&spi0>;
  71                 __overlay__ {
  72                         status = "okay";
  73                         #address-cells = <1>;
  74                         #size-cells = <0>;
  75
  76                         max: maxtherm@0 {
  77                                 compatible = "maxim,max6675";
  78                                 reg = <0>;
  79                                 spi-max-frequency = <500000>;
  80                         };
  81                 };
  82         };
  83
  84         fragment@9 {
  85                 target = <&max>;
  86                 __dormant__ {
  87                         compatible = "maxim,max31855e", "maxim,max31855";
  88                 };
  89         };
  90
  91         fragment@10 {
  92                 target = <&max>;
  93                 __dormant__ {
  94                         compatible = "maxim,max31855j", "maxim,max31855";
  95                 };
  96         };
  97
  98         fragment@11 {
  99                 target = <&max>;
 100                 __dormant__ {
 101                         compatible = "maxim,max31855k", "maxim,max31855";
 102                 };
 103         };
 104
 105         fragment@12 {
 106                 target = <&max>;
 107                 __dormant__ {
 108                         compatible = "maxim,max31855n", "maxim,max31855";
 109                 };
 110         };
 111
 112         fragment@13 {
 113                 target = <&max>;
 114                 __dormant__ {
 115                         compatible = "maxim,max31855r", "maxim,max31855";
 116                 };
 117         };
 118
 119         fragment@14 {
 120                 target = <&max>;
 121                 __dormant__ {
 122                         compatible = "maxim,max31855s", "maxim,max31855";
 123                 };
 124         };
 125
 126         fragment@15 {
 127                 target = <&max>;
 128                 __dormant__ {
 129                         compatible = "maxim,max31855t", "maxim,max31855";
 130                 };
 131         };
 132
 133         fragment@16 {
 134                 target = <&max>;
 135                 __dormant__ {
 136                         compatible = "maxim,max31856";
 137                         spi-cpha;
 138                         thermocouple-type = <THERMOCOUPLE_TYPE_K>;
 139                 };
 140         };
 141
 142         __overrides__ {
 143                 spi0-0 = <0>, "+0",
 144                          <&maxfrag>,"target:0=",<&spi0>,
 145                          <&max>,"reg:0=0";
 146                 spi0-1 = <0>, "+1",
 147                          <&maxfrag>,"target:0=",<&spi0>,
 148                          <&max>,"reg:0=1";
 149                 spi1-0 = <0>, "+2",
 150                          <&maxfrag>,"target:0=",<&spi1>,
 151                          <&max>,"reg:0=0";
 152                 spi1-1 = <0>, "+3",
 153                          <&maxfrag>,"target:0=",<&spi1>,
 154                          <&max>,"reg:0=1";
 155                 spi1-2 = <0>, "+4",
 156                          <&maxfrag>,"target:0=",<&spi1>,
 157                          <&max>,"reg:0=2";
 158                 spi2-0 = <0>, "+5",
 159                          <&maxfrag>,"target:0=",<&spi2>,
 160                          <&max>,"reg:0=0";
 161                 spi2-1 = <0>, "+6",
 162                          <&maxfrag>,"target:0=",<&spi2>,
 163                          <&max>,"reg:0=1";
 164                 spi2-2 = <0>, "+7",
 165                          <&maxfrag>,"target:0=",<&spi2>,
 166                          <&max>,"reg:0=2";
 167                 max6675 = <&max>,"compatible=maxim,max6675";
 168                 max31855 = <&max>,"compatible=maxim,max31855";
 169                 max31855e = <0>,"+9";
 170                 max31855j = <0>,"+10";
 171                 max31855k = <0>,"+11";
 172                 max31855n = <0>,"+12";
 173                 max31855r = <0>,"+13";
 174                 max31855s = <0>,"+14";
 175                 max31855t = <0>,"+15";
 176                 max31856  = <0>,"+16";
 177                 type_b    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_B>;
 178                 type_e    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_E>;
 179                 type_j    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_J>;
 180                 type_k    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_K>;
 181                 type_n    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_N>;
 182                 type_r    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_R>;
 183                 type_s    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_S>;
 184                 type_t    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_T>;
 185         };
 186 };