Include ADA4355 support into 2026 release

arch/arm/boot/dts/xilinx/zynq-zed-adv7511-ada4355.dts

@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices ada4355
+ *
+ * hdl_project: <ada4355_fmc/zed>
+ * board_revision: <>
+ *
+ * Copyright (C) 2025 Analog Devices Inc.
+ */
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "zynq-zed.dtsi"
+#include "zynq-zed-adv7511.dtsi"
+
+&fpga_axi {
+	rx_dma: rx-dmac@44a30000 {
+		compatible = "adi,axi-dmac-1.00.a";
+		reg = <0x44A30000 0x10000>;
+		#dma-cells = <1>;
+		interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 16>;
+
+		adi,channels {
+			#size-cells = <0>;
+			#address-cells = <1>;
+
+			dma-channel@0 {
+				reg = <0>;
+				adi,source-bus-width = <32>;
+				adi,source-bus-type = <2>;
+				adi,destination-bus-width = <64>;
+				adi,destination-bus-type = <0>;
+			};
+		};
+	};
+
+	ada4355: ada4355@44a00000 {
+		compatible = "adi,axi-adc-10.0.a";
+		reg = <0x44A00000 0x10000>;
+		dmas = <&rx_dma 0>;
+		dma-names = "rx";
+
+		spibus-connected = <&adc_ada4355>;
+	};
+};
+
+&spi0 {
+	status = "okay";
+};
+
+#define fmc_spi spi0
+
+/ {
+	ada4355_fixed_clock: ada4355_fixed_clock{
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+
+	gpio-control@0 {
+		compatible = "adi,one-bit-adc-dac";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		out-gpios = <&gpio0 86 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 87 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 88 GPIO_ACTIVE_HIGH>;
+
+		channel@0 {
+			reg = <0>;
+			label = "GSEL0";
+		};
+		channel@1 {
+			reg = <1>;
+			label = "GSEL1";
+		};
+		channel@2 {
+			reg = <2>;
+			label = "FSEL";
+		};
+	};
+};
+
+&fmc_spi {
+
+	adc_ada4355: adc_ada4355@0 {
+		compatible = "adi,ada4355";
+		reg = <0>;
+		spi-max-frequency = <100000>;
+		gpio-vld-en-gpios = <&gpio0 89 GPIO_ACTIVE_HIGH>;
+
+		clocks = <&ada4355_fixed_clock>;
+		clock-names = "adc_clk";
+		num_lanes = <2>;
+		spi-cpol;
+		spi-cpha;
+	};
+};

arch/arm/boot/dts/xilinx/zynq-zed-adv7511-ada4356-lidar.dts

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices ADA4356 LiDAR application
+ *
+ * hdl_project: <ada4355_fmc/zed>
+ * board_revision: <>
+ *
+ * Copyright (C) 2025 Analog Devices Inc.
+ */
+
+#include "zynq-zed-adv7511-ada4356.dts"
+
+&fpga_axi {
+	/* TDD Controller for LiDAR timing control */
+	axi_tdd: axi-tdd@44a40000 {
+		compatible = "adi,axi-tdd";
+		reg = <0x44a40000 0x10000>;
+		clocks = <&clkc 15>, <&ada4355_fixed_clock>;
+		clock-names = "s_axi_aclk", "intf_clk";
+	};
+
+	/* IIO wrapper for TDD - makes sysfs attributes accessible via libiio */
+	iio_axi_tdd_0: iio-axi-tdd-0@0 {
+		compatible = "adi,iio-fake-platform-device";
+		adi,faked-dev = <&axi_tdd>;
+		adi,attribute-names =
+			"version", "core_id", "scratch", "magic",
+			"sync_soft", "sync_external", "sync_internal", "sync_reset",
+			"enable", "startup_delay_raw", "startup_delay_ms",
+			"burst_count", "frame_length_raw", "frame_length_ms",
+			"state", "internal_sync_period_raw", "internal_sync_period_ms",
+			"out_channel0_enable", "out_channel0_polarity",
+			"out_channel0_on_raw", "out_channel0_on_ms",
+			"out_channel0_off_raw", "out_channel0_off_ms",
+			"out_channel1_enable", "out_channel1_polarity",
+			"out_channel1_on_raw", "out_channel1_on_ms",
+			"out_channel1_off_raw", "out_channel1_off_ms";
+		label = "iio-axi-tdd-0";
+	};
+};

arch/arm/boot/dts/xilinx/zynq-zed-adv7511-ada4356.dts

@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices ada4355
+ *
+ * hdl_project: <ada4355_fmc/zed>
+ * board_revision: <>
+ *
+ * Copyright (C) 2025 Analog Devices Inc.
+ */
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "zynq-zed.dtsi"
+#include "zynq-zed-adv7511.dtsi"
+
+&fpga_axi {
+
+	fmc_i2c: i2c@41620000 {
+		compatible = "xlnx,axi-iic-1.01.b", "xlnx,xps-iic-2.00.a";
+		interrupt-parent = <&intc>;
+		interrupts = <0 55 IRQ_TYPE_LEVEL_HIGH>;
+		reg = <0x41620000 0x10000>;
+
+		#size-cells = <0>;
+		#address-cells = <1>;
+
+		ad7291@2f {
+			compatible = "adi,ad7291";
+			reg = <0x2f>;
+		};
+	};
+
+	rx_dma: rx-dmac@44a30000 {
+		compatible = "adi,axi-dmac-1.00.a";
+		reg = <0x44A30000 0x10000>;
+		#dma-cells = <1>;
+		interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 16>;
+
+		adi,channels {
+			#size-cells = <0>;
+			#address-cells = <1>;
+
+			dma-channel@0 {
+				reg = <0>;
+				adi,source-bus-width = <32>;
+				adi,source-bus-type = <2>;
+				adi,destination-bus-width = <64>;
+				adi,destination-bus-type = <0>;
+			};
+		};
+	};
+
+	ada4355: ada4355@44a00000 {
+		compatible = "adi,axi-adc-10.0.a";
+		reg = <0x44A00000 0x10000>;
+		dmas = <&rx_dma 0>;
+		dma-names = "rx";
+
+		spibus-connected = <&adc_ada4355>;
+	};
+
+};
+
+&spi0 {
+	status = "okay";
+};
+
+#define fmc_spi spi0
+
+/ {
+	ada4355_fixed_clock: ada4355_fixed_clock{
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+
+	gpio-control@0 {
+		compatible = "adi,one-bit-adc-dac";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		out-gpios = <&gpio0 86 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 87 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 88 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 90 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 91 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 92 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 93 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 95 GPIO_ACTIVE_HIGH>;
+
+		channel@0 {
+			reg = <0>;
+			label = "GSEL0";
+		};
+		channel@1 {
+			reg = <1>;
+			label = "GSEL1";
+		};
+		channel@2 {
+			reg = <2>;
+			label = "FSEL0";
+		};
+		channel@3 {
+			reg = <3>;
+			label = "GSEL2";
+		};
+		channel@4 {
+			reg = <4>;
+			label = "GPIO_TEST";
+		};
+		channel@5 {
+			reg = <5>;
+			label = "GSEL3";
+		};
+		channel@6 {
+			reg = <6>;
+			label = "FSEL1";
+		};
+		channel@7 {
+			reg = <7>;
+			label = "VLOGIC";
+		};
+	};
+};
+
+&fmc_spi {
+
+	adc_ada4355: adc_ada4355@0 {
+		compatible = "adi,ada4355";
+		reg = <0>;
+		spi-max-frequency = <100000>;
+		gpio-vld-en-gpios = <&gpio0 89 GPIO_ACTIVE_HIGH>;
+
+		clocks = <&ada4355_fixed_clock>;
+		clock-names = "adc_clk";
+		num_lanes = <2>;
+		spi-cpol;
+		spi-cpha;
+	};
+};

arch/arm/configs/zynq_xcomm_adv7511_defconfig

@@ -214,6 +214,8 @@ CONFIG_COMMON_CLK_AXI_CLKGEN=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_MEMORY=y
 CONFIG_AXI_JESD204B=y
+CONFIG_ADI_AXI_TDD=y
+CONFIG_ADI_IIO_FAKEDEV=y
 CONFIG_FPGA=y
 CONFIG_FPGA_MGR_ZYNQ_FPGA=y
 CONFIG_FPGA_MGR_ZYNQ_AFI_FPGA=y

drivers/iio/Kconfig.adi

@@ -1,3 +1,3 @@
 
 # This file exists solely to be include in Kconfig.adi
 # It's a bit of hurry-ed-up job; many symbols need to be depended
@@ -91,6 +91,7 @@
 	imply LTC2387
 	imply AD8366
 	imply ADA4250
+	imply ADA4355
 	imply HMC425
 	imply AD5270
 	imply AD5360

drivers/iio/adc/Kconfig

@@ -466,6 +466,18 @@ config ADAQ8092
 	  To compile this driver as a module, choose M here: the
 	  module will be called adaq8092.
 
+
+config ADA4355
+	tristate "Analog Devices ADA4355 uModule Data Acquisition Module"
+	depends on SPI
+	depends on CF_AXI_ADC
+	select REGMAP_SPI
+	help
+	  Say yes here to build support for Analog Devices ADA4355
+	  14-bit, 125MSPS, high-speed dual-channel analog to digital
+	  converters (ADC) that realize a complete current to bits data
+	  acquisition solution. Provides direct access via sysfs.
+
 config ADM1177
 	tristate "Analog Devices ADM1177 Digital Power Monitor driver"
 	depends on I2C

drivers/iio/adc/Makefile

@@ -46,6 +46,7 @@ obj-$(CONFIG_AD9467) += ad9467.o
 obj-$(CONFIG_ADI_AXI_ADC) += adi-axi-adc.o
 obj-$(CONFIG_AD9963) += ad9963.o
 obj-$(CONFIG_ADAQ8092) += adaq8092.o
+obj-$(CONFIG_ADA4355) += ada4355.o
 obj-$(CONFIG_ADM1177) += adm1177.o
 
 cf_axi_adc-y := cf_axi_adc_core.o