// SPDX-License-Identifier: GPL-2.0-only /* ADC driver for AXP20X and AXP22X PMICs * * Copyright (c) 2016 Free Electrons NextThing Co. * Quentin Schulz <[email protected]> */ #include <linux/unaligned.h> #include <linux/bitfield.h> #include <linux/completion.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/property.h> #include <linux/regmap.h> #include <linux/thermal.h> #include <linux/iio/iio.h> #include <linux/iio/driver.h> #include <linux/iio/machine.h> #include <linux/mfd/axp20x.h> #define AXP192_ADC_EN1_MASK … #define AXP192_ADC_EN2_MASK … #define AXP20X_ADC_EN1_MASK … #define AXP20X_ADC_EN2_MASK … #define AXP22X_ADC_EN1_MASK … #define AXP717_ADC_EN1_MASK … #define AXP192_GPIO30_IN_RANGE_GPIO0 … #define AXP192_GPIO30_IN_RANGE_GPIO1 … #define AXP192_GPIO30_IN_RANGE_GPIO2 … #define AXP192_GPIO30_IN_RANGE_GPIO3 … #define AXP20X_GPIO10_IN_RANGE_GPIO0 … #define AXP20X_GPIO10_IN_RANGE_GPIO1 … #define AXP20X_ADC_RATE_MASK … #define AXP20X_ADC_RATE_HZ(x) … #define AXP22X_ADC_RATE_HZ(x) … #define AXP717_ADC_DATA_TS … #define AXP717_ADC_DATA_TEMP … #define AXP717_ADC_DATA_VMID … #define AXP717_ADC_DATA_BKUP_BATT … #define AXP717_ADC_DATA_MASK … #define AXP813_V_I_ADC_RATE_MASK … #define AXP813_ADC_RATE_MASK … #define AXP813_TS_GPIO0_ADC_RATE_HZ(x) … #define AXP813_V_I_ADC_RATE_HZ(x) … #define AXP813_ADC_RATE_HZ(x) … #define AXP20X_ADC_CHANNEL(_channel, _name, _type, _reg) … #define AXP20X_ADC_CHANNEL_OFFSET(_channel, _name, _type, _reg) … struct axp_data; struct axp20x_adc_iio { … }; enum axp192_adc_channel_v { … }; enum axp192_adc_channel_i { … }; enum axp20x_adc_channel_v { … }; enum axp20x_adc_channel_i { … }; enum axp22x_adc_channel_v { … }; enum axp22x_adc_channel_i { … }; enum axp717_adc_channel_v { … }; enum axp717_adc_channel_i { … }; enum axp813_adc_channel_v { … }; static struct iio_map axp20x_maps[] = …; static struct iio_map axp22x_maps[] = …; static struct iio_map axp717_maps[] = …; /* * Channels are mapped by physical system. Their channels share the same index. * i.e. acin_i is in_current0_raw and acin_v is in_voltage0_raw. * The only exception is for the battery. batt_v will be in_voltage6_raw and * charge current in_current6_raw and discharge current will be in_current7_raw. */ static const struct iio_chan_spec axp192_adc_channels[] = …; static const struct iio_chan_spec axp20x_adc_channels[] = …; static const struct iio_chan_spec axp22x_adc_channels[] = …; /* * Scale and offset is unknown for temp, ts, batt_chrg_i, vmid_v, and * bkup_batt_v channels. Leaving scale and offset undefined for now. */ static const struct iio_chan_spec axp717_adc_channels[] = …; static const struct iio_chan_spec axp813_adc_channels[] = …; static int axp192_adc_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp20x_adc_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp22x_adc_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp717_adc_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp813_adc_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp192_adc_scale_voltage(int channel, int *val, int *val2) { … } static int axp20x_adc_scale_voltage(int channel, int *val, int *val2) { … } static int axp22x_adc_scale_voltage(int channel, int *val, int *val2) { … } static int axp813_adc_scale_voltage(int channel, int *val, int *val2) { … } static int axp20x_adc_scale_current(int channel, int *val, int *val2) { … } static int axp192_adc_scale(struct iio_chan_spec const *chan, int *val, int *val2) { … } static int axp20x_adc_scale(struct iio_chan_spec const *chan, int *val, int *val2) { … } static int axp22x_adc_scale(struct iio_chan_spec const *chan, int *val, int *val2) { … } static int axp717_adc_scale(struct iio_chan_spec const *chan, int *val, int *val2) { … } static int axp813_adc_scale(struct iio_chan_spec const *chan, int *val, int *val2) { … } static int axp192_adc_offset_voltage(struct iio_dev *indio_dev, int channel, int *val) { … } static int axp20x_adc_offset_voltage(struct iio_dev *indio_dev, int channel, int *val) { … } static int axp192_adc_offset(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp20x_adc_offset(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { … } static int axp192_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int axp20x_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int axp22x_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int axp717_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int axp813_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int axp192_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static int axp20x_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static const struct iio_info axp192_adc_iio_info = …; static const struct iio_info axp20x_adc_iio_info = …; static const struct iio_info axp22x_adc_iio_info = …; static const struct iio_info axp717_adc_iio_info = …; static const struct iio_info axp813_adc_iio_info = …; static int axp20x_adc_rate(struct axp20x_adc_iio *info, int rate) { … } static int axp22x_adc_rate(struct axp20x_adc_iio *info, int rate) { … } static int axp813_adc_rate(struct axp20x_adc_iio *info, int rate) { … } struct axp_data { … }; static const struct axp_data axp192_data = …; static const struct axp_data axp20x_data = …; static const struct axp_data axp22x_data = …; static const struct axp_data axp717_data = …; static const struct axp_data axp813_data = …; static const struct of_device_id axp20x_adc_of_match[] = …; MODULE_DEVICE_TABLE(of, axp20x_adc_of_match); static const struct platform_device_id axp20x_adc_id_match[] = …; MODULE_DEVICE_TABLE(platform, axp20x_adc_id_match); static int axp20x_probe(struct platform_device *pdev) { … } static void axp20x_remove(struct platform_device *pdev) { … } static struct platform_driver axp20x_adc_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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