Add support for AD7944, AD7985, AD7986

Documentation/devicetree/bindings/iio/adc/adi,pulsar.yaml

@@ -13,11 +13,14 @@ description: |
   Analog Devices PulSAR family Analog to Digital Converters with SPI support
     https://www.analog.com/en/products/ad7988-5.html
     https://www.analog.com/en/products/ad7988-1.html
+    https://www.analog.com/en/products/ad7986.html
+    https://www.analog.com/en/products/ad7985.html
     https://www.analog.com/en/products/ad7984.html
     https://www.analog.com/en/products/ad7983.html
     https://www.analog.com/en/products/ad7982.html
     https://www.analog.com/en/products/ad7980.html
     https://www.analog.com/en/products/ad7949.html
+    https://www.analog.com/en/products/ad7944.html
     https://www.analog.com/en/products/ad7946.html
     https://www.analog.com/en/products/ad7942.html
     https://www.analog.com/en/products/ad7699.html
@@ -45,12 +48,15 @@ properties:
     enum:
       - adi,pulsar,ad7988-5
       - adi,pulsar,ad7988-1
+      - adi,pulsar,ad7986
+      - adi,pulsar,ad7985
       - adi,pulsar,ad7984
       - adi,pulsar,ad7983
       - adi,pulsar,ad7982
       - adi,pulsar,ad7980
       - adi,pulsar,ad7949
       - adi,pulsar,ad7946
+      - adi,pulsar,ad7944
       - adi,pulsar,ad7942
       - adi,pulsar,ad7699
       - adi,pulsar,ad7693
@@ -104,6 +110,12 @@ properties:
   vref-supply:
     description: Voltage regulator for the reference voltage.
 
+  turbo-gpios:
+    maxItems: 1
+    description:
+      GPIO used to enable the turbo mode. This mode is used to increase the
+      sampling rate of the ADC at the expense of power consumption.
+
 patternProperties:
   "^channel@([0-8])$":
     type: object
@@ -165,6 +177,18 @@ allOf:
           required:
             - adi,single-channel
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,pulsar,ad7986
+              - adi,pulsar,ad7985
+              - adi,pulsar,ad7944
+    then:
+      required:
+        - turbo-gpios
+
 required:
   - compatible
   - reg

arch/arm/boot/dts/zynq-zed-adv7511-ad7944.dts

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices AD7944
+ * https://www.analog.com/en/products/ad7944.html
+ *
+ * hdl_project: <pulsar_adc_pmdz/zed>
+ * board_revision: <>
+ *
+ * Copyright (C) 2023 Analog Devices Inc.
+ */
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#include "zynq-zed.dtsi"
+#include "zynq-zed-adv7511.dtsi"
+
+/ {
+	vref: ad7944-internal-reference-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "AD7944 internal reference";
+		regulator-min-microvolt = <4096000>;
+		regulator-max-microvolt = <4096000>;
+		regulator-always-on;
+	};
+};
+
+&fpga_axi {
+	adc_trigger: pwm@44b00000 {
+		compatible = "adi,axi-pwmgen";
+		reg = <0x44b00000 0x1000>;
+		label = "adc_conversion_trigger";
+		#pwm-cells = <2>;
+		clocks = <&spi_clk>;
+	};
+
+	rx_dma: rx-dmac@44a30000 {
+		compatible = "adi,axi-dmac-1.00.a";
+		reg = <0x44a30000 0x1000>;
+		#dma-cells = <1>;
+		interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 17>;
+
+		adi,channels {
+			#size-cells = <0>;
+			#address-cells = <1>;
+
+			dma-channel@0 {
+				reg = <0>;
+				adi,source-bus-width = <32>;
+				adi,source-bus-type = <1>;
+				adi,destination-bus-width = <64>;
+				adi,destination-bus-type = <0>;
+			};
+		};
+	};
+
+	spi_clk: clock-controller@44a70000 {
+		compatible = "adi,axi-clkgen-2.00.a";
+		reg = <0x44a70000 0x1000>;
+		#clock-cells = <0>;
+		clocks = <&clkc 15>, <&clkc 15>;
+		clock-names = "s_axi_aclk", "clkin1";
+		clock-output-names = "spi_clk";
+	};
+
+	axi_spi_engine_0: spi@44a00000 {
+		compatible = "adi,axi-spi-engine-1.00.a";
+		reg = <0x44a00000 0x1000>;
+		interrupt-parent = <&intc>;
+		interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 15>, <&spi_clk>;
+		clock-names = "s_axi_aclk", "spi_clk";
+		num-cs = <1>;
+
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		ad7944: adc@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "adi,pulsar,ad7944";
+			reg = <0>;
+			spi-max-frequency = <80000000>;
+			turbo-gpios = <&gpio0 87 GPIO_ACTIVE_HIGH>;
+			clocks = <&spi_clk>;
+			clock-names = "ref_clk";
+			dmas = <&rx_dma 0>;
+			dma-names = "rx";
+			pwms = <&adc_trigger 0 0>;
+			pwm-names = "cnv";
+			vref-supply = <&vref>;
+			channel@0 {
+				reg = <0>;
+				diff-channels = <0 1>;
+			};
+		};
+	};
+};

arch/arm/boot/dts/zynq-zed-adv7511-ad7985.dts

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices AD7985
+ * https://www.analog.com/en/products/ad7985.html
+ *
+ * hdl_project: <pulsar_adc_pmdz/zed>
+ * board_revision: <>
+ *
+ * Copyright (C) 2023 Analog Devices Inc.
+ */
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#include "zynq-zed.dtsi"
+#include "zynq-zed-adv7511.dtsi"
+
+/ {
+	vref: ad7985-internal-reference-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "AD7985 internal reference";
+		regulator-min-microvolt = <4096000>;
+		regulator-max-microvolt = <4096000>;
+		regulator-always-on;
+	};
+};
+
+&fpga_axi {
+	adc_trigger: pwm@44b00000 {
+		compatible = "adi,axi-pwmgen";
+		reg = <0x44b00000 0x1000>;
+		label = "adc_conversion_trigger";
+		#pwm-cells = <2>;
+		clocks = <&spi_clk>;
+	};
+
+	rx_dma: rx-dmac@44a30000 {
+		compatible = "adi,axi-dmac-1.00.a";
+		reg = <0x44a30000 0x1000>;
+		#dma-cells = <1>;
+		interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 17>;
+
+		adi,channels {
+			#size-cells = <0>;
+			#address-cells = <1>;
+
+			dma-channel@0 {
+				reg = <0>;
+				adi,source-bus-width = <32>;
+				adi,source-bus-type = <1>;
+				adi,destination-bus-width = <64>;
+				adi,destination-bus-type = <0>;
+			};
+		};
+	};
+
+	spi_clk: clock-controller@44a70000 {
+		compatible = "adi,axi-clkgen-2.00.a";
+		reg = <0x44a70000 0x1000>;
+		#clock-cells = <0>;
+		clocks = <&clkc 15>, <&clkc 15>;
+		clock-names = "s_axi_aclk", "clkin1";
+		clock-output-names = "spi_clk";
+	};
+
+	axi_spi_engine_0: spi@44a00000 {
+		compatible = "adi,axi-spi-engine-1.00.a";
+		reg = <0x44a00000 0x1000>;
+		interrupt-parent = <&intc>;
+		interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 15>, <&spi_clk>;
+		clock-names = "s_axi_aclk", "spi_clk";
+		num-cs = <1>;
+
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		ad7985: adc@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "adi,pulsar,ad7985";
+			reg = <0>;
+			spi-max-frequency = <80000000>;
+			turbo-gpios = <&gpio0 87 GPIO_ACTIVE_HIGH>;
+			clocks = <&spi_clk>;
+			clock-names = "ref_clk";
+			dmas = <&rx_dma 0>;
+			dma-names = "rx";
+			pwms = <&adc_trigger 0 0>;
+			pwm-names = "cnv";
+			vref-supply = <&vref>;
+			channel@0 {
+				reg = <0>;
+				diff-channels = <0 1>;
+			};
+		};
+	};
+};

arch/arm/boot/dts/zynq-zed-adv7511-ad7986.dts

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices AD7986
+ * https://www.analog.com/en/products/ad7986.html
+ *
+ * hdl_project: <pulsar_adc_pmdz/zed>
+ * board_revision: <>
+ *
+ * Copyright (C) 2023 Analog Devices Inc.
+ */
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#include "zynq-zed.dtsi"
+#include "zynq-zed-adv7511.dtsi"
+
+/ {
+	vref: ad7986-internal-reference-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "AD7986 internal reference";
+		regulator-min-microvolt = <4096000>;
+		regulator-max-microvolt = <4096000>;
+		regulator-always-on;
+	};
+};
+
+&fpga_axi {
+	adc_trigger: pwm@44b00000 {
+		compatible = "adi,axi-pwmgen";
+		reg = <0x44b00000 0x1000>;
+		label = "adc_conversion_trigger";
+		#pwm-cells = <2>;
+		clocks = <&spi_clk>;
+	};
+
+	rx_dma: rx-dmac@44a30000 {
+		compatible = "adi,axi-dmac-1.00.a";
+		reg = <0x44a30000 0x1000>;
+		#dma-cells = <1>;
+		interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 17>;
+
+		adi,channels {
+			#size-cells = <0>;
+			#address-cells = <1>;
+
+			dma-channel@0 {
+				reg = <0>;
+				adi,source-bus-width = <32>;
+				adi,source-bus-type = <1>;
+				adi,destination-bus-width = <64>;
+				adi,destination-bus-type = <0>;
+			};
+		};
+	};
+
+	spi_clk: clock-controller@44a70000 {
+		compatible = "adi,axi-clkgen-2.00.a";
+		reg = <0x44a70000 0x1000>;
+		#clock-cells = <0>;
+		clocks = <&clkc 15>, <&clkc 15>;
+		clock-names = "s_axi_aclk", "clkin1";
+		clock-output-names = "spi_clk";
+	};
+
+	axi_spi_engine_0: spi@44a00000 {
+		compatible = "adi,axi-spi-engine-1.00.a";
+		reg = <0x44a00000 0x1000>;
+		interrupt-parent = <&intc>;
+		interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 15>, <&spi_clk>;
+		clock-names = "s_axi_aclk", "spi_clk";
+		num-cs = <1>;
+
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		ad7986: adc@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "adi,pulsar,ad7986";
+			reg = <0>;
+			spi-max-frequency = <80000000>;
+			turbo-gpios = <&gpio0 87 GPIO_ACTIVE_HIGH>;
+			clocks = <&spi_clk>;
+			clock-names = "ref_clk";
+			dmas = <&rx_dma 0>;
+			dma-names = "rx";
+			pwms = <&adc_trigger 0 0>;
+			pwm-names = "cnv";
+			vref-supply = <&vref>;
+			channel@0 {
+				reg = <0>;
+				diff-channels = <0 1>;
+			};
+		};
+	};
+};