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#include <dt-bindings/clock/bcm2835.h>
/*
* Device tree overlay for the DRAWS Hardware
*/
/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2835";
fragment@0 {
target = <&i2s>;
__overlay__ {
status = "okay";
};
};
fragment@1 {
target-path = "/";
__overlay__ {
regulators {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
udrc0_ldoin: udrc0_ldoin {
compatible = "regulator-fixed";
regulator-name = "ldoin";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
sc16is752_clk: sc16is752_draws_clk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <1843200>;
};
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};
pps: pps {
compatible = "pps-gpio";
pinctrl-names = "default";
pinctrl-0 = <&pps_pins>;
gpios = <&gpio 7 0>;
status = "okay";
};
};
};
fragment@2 {
target = <&i2c_arm>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
tlv320aic32x4: tlv320aic32x4@18 {
compatible = "ti,tlv320aic32x4";
reg = <0x18>;
#sound-dai-cells = <0>;
status = "okay";
clocks = <&clocks BCM2835_CLOCK_GP0>;
clock-names = "mclk";
assigned-clocks = <&clocks BCM2835_CLOCK_GP0>;
assigned-clock-rates = <25000000>;
pinctrl-names = "default";
pinctrl-0 = <&gpclk0_pin &aic3204_reset>;
reset-gpios = <&gpio 13 0>;
iov-supply = <&udrc0_ldoin>;
ldoin-supply = <&udrc0_ldoin>;
};
sc16is752: sc16is752@50 {
compatible = "nxp,sc16is752";
reg = <0x50>;
clocks = <&sc16is752_clk>;
interrupt-parent = <&gpio>;
interrupts = <17 2>; /* IRQ_TYPE_EDGE_FALLING */
pinctrl-names = "default";
pinctrl-0 = <&sc16is752_irq>;
};
tla2024: tla2024@48 {
compatible = "ti,ads1015";
reg = <0x48>;
#address-cells = <1>;
#size-cells = <0>;
adc_ch4: channel@4 {
reg = <4>;
ti,gain = <1>;
ti,datarate = <4>;
};
adc_ch5: channel@5 {
reg = <5>;
ti,gain = <1>;
ti,datarate = <4>;
};
adc_ch6: channel@6 {
reg = <6>;
ti,gain = <2>;
ti,datarate = <4>;
};
adc_ch7: channel@7 {
reg = <7>;
ti,gain = <2>;
ti,datarate = <4>;
};
};
};
};
fragment@3 {
target = <&sound>;
snd: __overlay__ {
compatible = "simple-audio-card";
i2s-controller = <&i2s>;
status = "okay";
simple-audio-card,name = "draws";
simple-audio-card,format = "i2s";
simple-audio-card,bitclock-master = <&dailink0_master>;
simple-audio-card,frame-master = <&dailink0_master>;
simple-audio-card,widgets =
"Line", "Line In",
"Line", "Line Out";
simple-audio-card,routing =
"IN1_R", "Line In",
"IN1_L", "Line In",
"CM_L", "Line In",
"CM_R", "Line In",
"Line Out", "LOR",
"Line Out", "LOL";
dailink0_master: simple-audio-card,cpu {
sound-dai = <&i2s>;
};
simple-audio-card,codec {
sound-dai = <&tlv320aic32x4>;
};
};
};
fragment@4 {
target = <&gpio>;
__overlay__ {
gpclk0_pin: gpclk0_pin {
brcm,pins = <4>;
brcm,function = <4>;
};
aic3204_reset: aic3204_reset {
brcm,pins = <13>;
brcm,function = <1>;
brcm,pull = <1>;
};
aic3204_gpio: aic3204_gpio {
brcm,pins = <26>;
};
sc16is752_irq: sc16is752_irq {
brcm,pins = <17>;
brcm,function = <0>;
brcm,pull = <2>;
};
pps_pins: pps_pins {
brcm,pins = <7>;
brcm,function = <0>;
brcm,pull = <0>;
};
};
};
__overrides__ {
draws_adc_ch4_gain = <&adc_ch4>,"ti,gain:0";
draws_adc_ch4_datarate = <&adc_ch4>,"ti,datarate:0";
draws_adc_ch5_gain = <&adc_ch5>,"ti,gain:0";
draws_adc_ch5_datarate = <&adc_ch5>,"ti,datarate:0";
draws_adc_ch6_gain = <&adc_ch6>,"ti,gain:0";
draws_adc_ch6_datarate = <&adc_ch6>,"ti,datarate:0";
draws_adc_ch7_gain = <&adc_ch7>,"ti,gain:0";
draws_adc_ch7_datarate = <&adc_ch7>,"ti,datarate:0";
alsaname = <&snd>, "simple-audio-card,name";
};
};