// SPDX-License-Identifier: GPL-2.0
/*
* Amlogic Meson Successive Approximation Register (SAR) A/D Converter
*
* Copyright (C) 2017 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
*/
#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/iio/iio.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/nvmem-consumer.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/syscon.h>
#define MESON_SAR_ADC_REG0 0x00
#define MESON_SAR_ADC_REG0_PANEL_DETECT BIT(31)
#define MESON_SAR_ADC_REG0_BUSY_MASK GENMASK(30, 28)
#define MESON_SAR_ADC_REG0_DELTA_BUSY BIT(30)
#define MESON_SAR_ADC_REG0_AVG_BUSY BIT(29)
#define MESON_SAR_ADC_REG0_SAMPLE_BUSY BIT(28)
#define MESON_SAR_ADC_REG0_FIFO_FULL BIT(27)
#define MESON_SAR_ADC_REG0_FIFO_EMPTY BIT(26)
#define MESON_SAR_ADC_REG0_FIFO_COUNT_MASK GENMASK(25, 21)
#define MESON_SAR_ADC_REG0_ADC_BIAS_CTRL_MASK GENMASK(20, 19)
#define MESON_SAR_ADC_REG0_CURR_CHAN_ID_MASK GENMASK(18, 16)
#define MESON_SAR_ADC_REG0_ADC_TEMP_SEN_SEL BIT(15)
#define MESON_SAR_ADC_REG0_SAMPLING_STOP BIT(14)
#define MESON_SAR_ADC_REG0_CHAN_DELTA_EN_MASK GENMASK(13, 12)
#define MESON_SAR_ADC_REG0_DETECT_IRQ_POL BIT(10)
#define MESON_SAR_ADC_REG0_DETECT_IRQ_EN BIT(9)
#define MESON_SAR_ADC_REG0_FIFO_CNT_IRQ_MASK GENMASK(8, 4)
#define MESON_SAR_ADC_REG0_FIFO_IRQ_EN BIT(3)
#define MESON_SAR_ADC_REG0_SAMPLING_START BIT(2)
#define MESON_SAR_ADC_REG0_CONTINUOUS_EN BIT(1)
#define MESON_SAR_ADC_REG0_SAMPLE_ENGINE_ENABLE BIT(0)
#define MESON_SAR_ADC_CHAN_LIST 0x04
#define MESON_SAR_ADC_CHAN_LIST_MAX_INDEX_MASK GENMASK(26, 24)
#define MESON_SAR_ADC_CHAN_LIST_ENTRY_MASK(_chan) \
(GENMASK(2, 0) << ((_chan) * 3))
#define MESON_SAR_ADC_AVG_CNTL 0x08
#define MESON_SAR_ADC_AVG_CNTL_AVG_MODE_SHIFT(_chan) \
(16 + ((_chan) * 2))
#define MESON_SAR_ADC_AVG_CNTL_AVG_MODE_MASK(_chan
