linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * AD5758 Digital to analog converters driver

 *

 * Copyright 2018 Analog Devices Inc.

 *

 * TODO: Currently CRC is not supported in this driver

 */

#include <linux/bsearch.h>

#include <linux/delay.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/property.h>

#include <linux/spi/spi.h>

#include <linux/gpio/consumer.h>

​

#include <linux/iio/iio.h>

#include <linux/iio/sysfs.h>

​

/* AD5758 registers definition */

#define AD5758_NOP              0x00

#define AD5758_DAC_INPUT            0x01

#define AD5758_DAC_OUTPUT           0x02

#define AD5758_CLEAR_CODE           0x03

#define AD5758_USER_GAIN            0x04

#define AD5758_USER_OFFSET          0x05

#define AD5758_DAC_CONFIG           0x06

#define AD5758_SW_LDAC              0x07

#define AD5758_KEY              0x08

#define AD5758_GP_CONFIG1           0x09

#define AD5758_GP_CONFIG2           0x0A

#define AD5758_DCDC_CONFIG1         0x0B

#define AD5758_DCDC_CONFIG2         0x0C

#define AD5758_WDT_CONFIG           0x0F

#define AD5758_DIGITAL_DIAG_CONFIG      0x10

#define AD5758_ADC_CONFIG           0x11

#define AD5758_FAULT_PIN_CONFIG         0x12

#define AD5758_TWO_STAGE_READBACK_SELECT    0x13

#define AD5758_DIGITAL_DIAG_RESULTS     0x14

#define AD5758_ANALOG_DIAG_RESULTS      0x15

#define AD5758_STATUS               0x16

#define AD5758_CHIP_ID              0x17

#define AD5758_FREQ_MONITOR         0x18

#define AD5758_DEVICE_ID_0          0x19

#define AD5758_DEVICE_ID_1          0x1A

#define AD5758_DEVICE_ID_2          0x1B

#define AD5758_DEVICE_ID_3          0x1C

​

/* AD5758_DAC_CONFIG */

#define AD5758_DAC_CONFIG_RANGE_MSK     GENMASK(3, 0)

#define AD5758_DAC_CONFIG_RANGE_MODE(x)     (((x) & 0xF) << 0)

#define AD5758_DAC_CONFIG_INT_EN_MSK        BIT(5)

#define AD5758_DAC_CONFIG_INT_EN_MODE(x)    (((x) & 0x1) << 5)

#define AD5758_DAC_CONFIG_OUT_EN_MSK        BIT(6)

#define AD5758_DAC_CONFIG_OUT_EN_MODE(x)    (((x) & 0x1) << 6)

#define AD5758_DAC_CONFIG_SR_EN_MSK     BIT(8)

#define AD5758_DAC_CONFIG_SR_EN_MODE(x)     (((x) & 0x1) << 8)

#define AD5758_DAC_CONFIG_SR_CLOCK_MSK      GENMASK(12, 9)

#define AD5758_DAC_CONFIG_SR_CLOCK_MODE(x)  (((x) & 0xF) << 9)

#define AD5758_DAC_CONFIG_SR_STEP_MSK       GENMASK(15, 13)

#define AD5758_DAC_CONFIG_SR_STEP_MODE(x)   (((x) & 0x7) << 13)

​

/* AD5758_KEY */