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

   1 #include <dt-bindings/clock/bcm2835.h>
   2 /*
   3  * Device tree overlay for the DRAWS Hardware
   4  */
   5
   6 /dts-v1/;
   7 /plugin/;
   8
   9 / {
  10     compatible = "brcm,bcm2835";
  11     fragment@0 {
  12         target = <&i2s>;
  13         __overlay__ {
  14             status = "okay";
  15         };
  16     };
  17
  18     fragment@1 {
  19         target-path = "/";
  20         __overlay__ {
  21             regulators {
  22                 compatible = "simple-bus";
  23                 #address-cells = <1>;
  24                 #size-cells = <0>;
  25
  26                 udrc0_ldoin: udrc0_ldoin {
  27                     compatible = "regulator-fixed";
  28                     regulator-name = "ldoin";
  29                     regulator-min-microvolt = <3300000>;
  30                     regulator-max-microvolt = <3300000>;
  31                     regulator-always-on;
  32                 };
  33
  34                 sc16is752_clk: sc16is752_draws_clk {
  35                     compatible = "fixed-clock";
  36                     #clock-cells = <0>;
  37                     clock-frequency = <1843200>;
  38                 };
  39             };
  40
  41             pps: pps {
  42                 compatible = "pps-gpio";
  43                 pinctrl-names = "default";
  44                 pinctrl-0 = <&pps_pins>;
  45                 gpios = <&gpio 7 0>;
  46                 status = "okay";
  47             };
  48
  49             iio-hwmon {
  50                 compatible = "iio-hwmon";
  51                 status = "okay";
  52                 io-channels = <&tla2024 4>, <&tla2024 5>, <&tla2024 6>,
  53                               <&tla2024 7>;
  54             };
  55         };
  56     };
  57
  58     fragment@2 {
  59         target = <&i2c_arm>;
  60         __overlay__ {
  61             #address-cells = <1>;
  62             #size-cells = <0>;
  63             status = "okay";
  64
  65             tlv320aic32x4: tlv320aic32x4@18 {
  66                 compatible = "ti,tlv320aic32x4";
  67                 reg = <0x18>;
  68                 #sound-dai-cells = <0>;
  69                 status = "okay";
  70
  71                 clocks = <&clocks BCM2835_CLOCK_GP0>;
  72                 clock-names = "mclk";
  73                 assigned-clocks = <&clocks BCM2835_CLOCK_GP0>;
  74                 assigned-clock-rates = <25000000>;
  75
  76                 pinctrl-names = "default";
  77                 pinctrl-0 = <&gpclk0_pin &aic3204_reset>;
  78
  79                 reset-gpios = <&gpio 13 0>;
  80
  81                 iov-supply = <&udrc0_ldoin>;
  82                 ldoin-supply = <&udrc0_ldoin>;
  83             };
  84
  85             sc16is752: sc16is752@50 {
  86                 compatible = "nxp,sc16is752";
  87                 reg = <0x50>;
  88                 clocks = <&sc16is752_clk>;
  89                 interrupt-parent = <&gpio>;
  90                 interrupts = <17 2>; /* IRQ_TYPE_EDGE_FALLING */
  91
  92                 pinctrl-names = "default";
  93                 pinctrl-0 = <&sc16is752_irq>;
  94             };
  95
  96             tla2024: tla2024@48 {
  97                 compatible = "ti,ads1015";
  98                 reg = <0x48>;
  99                 #address-cells = <1>;
 100                 #size-cells = <0>;
 101                 #io-channel-cells = <1>;
 102
 103                 adc_ch4: channel@4 {
 104                     reg = <4>;
 105                     ti,gain = <1>;
 106                     ti,datarate = <4>;
 107                 };
 108
 109                 adc_ch5: channel@5 {
 110                     reg = <5>;
 111                     ti,gain = <1>;
 112                     ti,datarate = <4>;
 113                 };
 114
 115                 adc_ch6: channel@6 {
 116                     reg = <6>;
 117                     ti,gain = <2>;
 118                     ti,datarate = <4>;
 119                 };
 120
 121                 adc_ch7: channel@7 {
 122                     reg = <7>;
 123                     ti,gain = <2>;
 124                     ti,datarate = <4>;
 125                 };
 126             };
 127         };
 128     };
 129
 130     fragment@3 {
 131         target = <&sound>;
 132         snd: __overlay__ {
 133             compatible = "simple-audio-card";
 134             i2s-controller = <&i2s>;
 135             status = "okay";
 136
 137             simple-audio-card,name = "draws";
 138             simple-audio-card,format = "i2s";
 139
 140             simple-audio-card,bitclock-master = <&dailink0_master>;
 141             simple-audio-card,frame-master = <&dailink0_master>;
 142
 143             simple-audio-card,widgets =
 144                 "Line", "Line In",
 145                 "Line", "Line Out";
 146
 147             simple-audio-card,routing =
 148                 "IN1_R", "Line In",
 149                 "IN1_L", "Line In",
 150                 "CM_L", "Line In",
 151                 "CM_R", "Line In",
 152                 "Line Out", "LOR",
 153                 "Line Out", "LOL";
 154
 155             dailink0_master: simple-audio-card,cpu {
 156                 sound-dai = <&i2s>;
 157             };
 158
 159             simple-audio-card,codec {
 160                 sound-dai = <&tlv320aic32x4>;
 161             };
 162         };
 163     };
 164
 165     fragment@4 {
 166         target = <&gpio>;
 167         __overlay__ {
 168             gpclk0_pin: gpclk0_pin {
 169                 brcm,pins = <4>;
 170                 brcm,function = <4>;
 171             };
 172
 173             aic3204_reset: aic3204_reset {
 174                 brcm,pins = <13>;
 175                 brcm,function = <1>;
 176                 brcm,pull = <1>;
 177             };
 178
 179             aic3204_gpio: aic3204_gpio {
 180                 brcm,pins = <26>;
 181             };
 182
 183             sc16is752_irq: sc16is752_irq {
 184                 brcm,pins = <17>;
 185                 brcm,function = <0>;
 186                 brcm,pull = <2>;
 187             };
 188
 189             pps_pins: pps_pins {
 190                 brcm,pins = <7>;
 191                 brcm,function = <0>;
 192                 brcm,pull = <0>;
 193             };
 194         };
 195     };
 196
 197     __overrides__ {
 198         draws_adc_ch4_gain = <&adc_ch4>,"ti,gain:0";
 199         draws_adc_ch4_datarate = <&adc_ch4>,"ti,datarate:0";
 200         draws_adc_ch5_gain = <&adc_ch5>,"ti,gain:0";
 201         draws_adc_ch5_datarate = <&adc_ch5>,"ti,datarate:0";
 202         draws_adc_ch6_gain = <&adc_ch6>,"ti,gain:0";
 203         draws_adc_ch6_datarate = <&adc_ch6>,"ti,datarate:0";
 204         draws_adc_ch7_gain = <&adc_ch7>,"ti,gain:0";
 205         draws_adc_ch7_datarate = <&adc_ch7>,"ti,datarate:0";
 206         alsaname = <&snd>, "simple-audio-card,name";
 207     };
 208 };