overlays: Add ADI device-tree overlays

This change groups all overlays into a single commit.
The reason for doing it like this is because the rpi-4.14.y branch has been
rebased.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>

arch/arm/boot/dts/overlays/Makefile

@@ -105,8 +105,19 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	pwm-ir-tx.dtbo \
 	qca7000.dtbo \
 	rotary-encoder.dtbo \
+	rpi-adf4371.dtbo \
+	rpi-ad5686.dtbo \
+	rpi-ad7190.dtbo \
+	rpi-ad738x.dtbo \
+	rpi-ad7768.dtbo \
+	rpi-ad9834.dtbo \
+	rpi-adgs1408.dtbo \
+	rpi-adxl372.dtbo \
+	rpi-adxl375.dtbo \
+	rpi-ad5770r.dtbo \
 	rpi-backlight.dtbo \
 	rpi-cirrus-wm5102.dtbo \
+	rpi-cn0508.dtbo \
 	rpi-dac.dtbo \
 	rpi-display.dtbo \
 	rpi-ft5406.dtbo \

arch/arm/boot/dts/overlays/rpi-ad5686-overlay.dts

@@ -0,0 +1,36 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			adc_vref: fixedregulator@0 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ad5686r@0{
+				compatible = "adi,ad5686r";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+				spi-cpha;
+				vcc-supply = <&adc_vref>;
+			};
+		};
+	};
+};

arch/arm/boot/dts/overlays/rpi-ad5770r-overlay.dts

@@ -0,0 +1,66 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ad5770r@0 {
+				compatible = "ad5770r";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+				vref-supply = <&vref>;
+
+				reset-gpios = <&gpio 22 0>;
+
+				channel@0 {
+					num = <0>;
+					adi,range-microamp = <(-60000) 300000>;
+				};
+
+				channel@1 {
+					num = <1>;
+					adi,range-microamp = <0 140000>;
+				};
+
+				channel@2 {
+					num = <2>;
+					adi,range-microamp = <0 55000>;
+				};
+
+				channel@3 {
+					num = <3>;
+					adi,range-microamp = <0 45000>;
+				};
+
+				channel@4 {
+					num = <4>;
+					adi,range-microamp = <0 45000>;
+				};
+
+				channel@5 {
+					num = <5>;
+					adi,range-microamp = <0 45000>;
+				};
+			};
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+		vref: fixedregulator@0 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply";
+				regulator-min-microvolt = <1250000>;
+				regulator-max-microvolt = <1250000>;
+			};
+		};
+	};
+};

arch/arm/boot/dts/overlays/rpi-ad7190-overlay.dts

@@ -0,0 +1,64 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			dvdd: fixedregulator@0 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+			avdd: fixedregulator@1 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply2";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
+	fragment@3 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ad7190@0 {
+				compatible = "adi,ad7190";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+				spi-cpol;
+				spi-cpha;
+				#interrupt-cells = <2>;
+				interrupts = <25 0x2>;
+				interrupt-parent = <&gpio>;
+				dvdd-supply = <&dvdd>;
+				avdd-supply = <&avdd>;
+
+				adi,reference-voltage-mv = /bits/ 16  <3300>;
+				adi,clock-source-select = [02];
+				adi,refin2-pins-enable;
+				adi,rejection-60-Hz-enable;
+				adi,chop-enable;
+				adi,buffer-enable;
+				adi,burnout-currents-enable;
+				adi,sinc3-filter-enable;
+				adi,unipolar-enable;
+			};
+		};
+	};
+};

arch/arm/boot/dts/overlays/rpi-ad738x-overlay.dts

@@ -0,0 +1,38 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			adc_vref: fixedregulator@0 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ad7380@0 {
+				compatible = "ad7380";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+				spi-cpol;
+				interrupts = <25 2>;
+				interrupt-parent = <&gpio>;
+				vref-supply = <&adc_vref>;
+			};
+		};
+	};
+};

arch/arm/boot/dts/overlays/rpi-ad7768-overlay.dts

@@ -0,0 +1,55 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			adc_vref: fixedregulator@0 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply";
+				regulator-min-microvolt = <4096000>;
+				regulator-max-microvolt = <4096000>;
+				regulator-boot-on;
+			};
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+			clocks {
+				ad7768_mclk: clock@0 {
+					     #clock-cells = <0>;
+					     compatible = "fixed-clock";
+					     clock-frequency = <16384000>;
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ad7768@0{
+				compatible = "ad7768-1";
+				reg = <0>;
+				spi-max-frequency = <16000000>;
+				spi-cpol;
+				spi-cpha;
+				#interrupt-cells = <2>;
+				interrupts = <25 0x2>;
+				interrupt-parent = <&gpio>;
+				vref-supply = <&adc_vref>;
+				clocks = <&ad7768_mclk>;
+				clock-names = "mclk";
+			};
+		};
+	};
+};

arch/arm/boot/dts/overlays/rpi-ad9834-overlay.dts

@@ -0,0 +1,45 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			vcc: fixedregulator@0 {
+				compatible = "regulator-fixed";
+				regulator-name = "fixed-supply";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-boot-on;
+			};
+
+			osc: oscillator {
+				#clock-cells = <0>;
+				compatible = "fixed-clock";
+				clock-frequency = <25000000>;
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ad9833@0{
+				#clock-cells = <0>;
+				compatible = "ad9833";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+				spi-cpol;
+				clocks = <&osc>;
+				vcc-supply = <&vcc>;
+			};
+		};
+	};
+};
+

arch/arm/boot/dts/overlays/rpi-adf4371-overlay.dts

@@ -0,0 +1,36 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			clocks {
+				adf4371_clkin: clock@0 {
+					     #clock-cells = <0>;
+					     compatible = "fixed-clock";
+					     clock-frequency = <100000000>; // 100MHz
+				};
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			adf4371@0 {
+				compatible = "adi,adf4371";
+				reg = <0>;
+				spi-max-frequency = <1000000>;
+				clocks = <&adf4371_clkin>;
+				clock-names = "clkin";
+			};
+		};
+	};
+};