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author | Stefan Popa <stefan.popa@analog.com> | 2018-12-17 14:23:39 +0200 |
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committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-01-05 16:10:59 +0000 |
commit | 2985a5d88455a3edd51358fc77f61b684d0e9265 (patch) | |
tree | a8e331cf984ed17af7f5ca7150d6cda22f69b2b3 /drivers/staging/iio/adc | |
parent | 54160ae3b2d3b45824da90a64d81c9a148c6fdbf (diff) | |
download | linux-stable-2985a5d88455a3edd51358fc77f61b684d0e9265.tar.gz linux-stable-2985a5d88455a3edd51358fc77f61b684d0e9265.tar.bz2 linux-stable-2985a5d88455a3edd51358fc77f61b684d0e9265.zip |
staging: iio: adc: ad7606: Move out of staging
Move ad7606 ADC driver out of staging and into the mainline.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/staging/iio/adc')
-rw-r--r-- | drivers/staging/iio/adc/Kconfig | 27 | ||||
-rw-r--r-- | drivers/staging/iio/adc/Makefile | 4 | ||||
-rw-r--r-- | drivers/staging/iio/adc/ad7606.c | 583 | ||||
-rw-r--r-- | drivers/staging/iio/adc/ad7606.h | 99 | ||||
-rw-r--r-- | drivers/staging/iio/adc/ad7606_par.c | 105 | ||||
-rw-r--r-- | drivers/staging/iio/adc/ad7606_spi.c | 82 |
6 files changed, 0 insertions, 900 deletions
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index 302639ab9c89..7a93d3a5c113 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -3,33 +3,6 @@ # menu "Analog to digital converters" -config AD7606 - tristate - select IIO_BUFFER - select IIO_TRIGGERED_BUFFER - -config AD7606_IFACE_PARALLEL - tristate "Analog Devices AD7606 ADC driver with parallel interface support" - depends on HAS_IOMEM - select AD7606 - help - Say yes here to build parallel interface support for Analog Devices: - ad7605-4, ad7606, ad7606-6, ad7606-4 analog to digital converters (ADC). - - To compile this driver as a module, choose M here: the - module will be called ad7606_parallel. - -config AD7606_IFACE_SPI - tristate "Analog Devices AD7606 ADC driver with spi interface support" - depends on SPI - select AD7606 - help - Say yes here to build spi interface support for Analog Devices: - ad7605-4, ad7606, ad7606-6, ad7606-4 analog to digital converters (ADC). - - To compile this driver as a module, choose M here: the - module will be called ad7606_spi. - config AD7780 tristate "Analog Devices AD7780 and similar ADCs driver" depends on SPI diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile index ebe83c1ad362..7a421088ff82 100644 --- a/drivers/staging/iio/adc/Makefile +++ b/drivers/staging/iio/adc/Makefile @@ -3,10 +3,6 @@ # Makefile for industrial I/O ADC drivers # -obj-$(CONFIG_AD7606_IFACE_PARALLEL) += ad7606_par.o -obj-$(CONFIG_AD7606_IFACE_SPI) += ad7606_spi.o -obj-$(CONFIG_AD7606) += ad7606.o - obj-$(CONFIG_AD7780) += ad7780.o obj-$(CONFIG_AD7816) += ad7816.o obj-$(CONFIG_AD7192) += ad7192.o diff --git a/drivers/staging/iio/adc/ad7606.c b/drivers/staging/iio/adc/ad7606.c deleted file mode 100644 index ebb8de03bbce..000000000000 --- a/drivers/staging/iio/adc/ad7606.c +++ /dev/null @@ -1,583 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * AD7606 SPI ADC driver - * - * Copyright 2011 Analog Devices Inc. - */ - -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/gpio/consumer.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/regulator/consumer.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/sysfs.h> -#include <linux/util_macros.h> - -#include <linux/iio/iio.h> -#include <linux/iio/buffer.h> -#include <linux/iio/sysfs.h> -#include <linux/iio/trigger.h> -#include <linux/iio/triggered_buffer.h> -#include <linux/iio/trigger_consumer.h> - -#include "ad7606.h" - -/* - * Scales are computed as 5000/32768 and 10000/32768 respectively, - * so that when applied to the raw values they provide mV values - */ -static const unsigned int scale_avail[2] = { - 152588, 305176 -}; - -static const unsigned int ad7606_oversampling_avail[7] = { - 1, 2, 4, 8, 16, 32, 64, -}; - -static int ad7606_reset(struct ad7606_state *st) -{ - if (st->gpio_reset) { - gpiod_set_value(st->gpio_reset, 1); - ndelay(100); /* t_reset >= 100ns */ - gpiod_set_value(st->gpio_reset, 0); - return 0; - } - - return -ENODEV; -} - -static int ad7606_read_samples(struct ad7606_state *st) -{ - unsigned int num = st->chip_info->num_channels; - u16 *data = st->data; - int ret; - - /* - * The frstdata signal is set to high while and after reading the sample - * of the first channel and low for all other channels. This can be used - * to check that the incoming data is correctly aligned. During normal - * operation the data should never become unaligned, but some glitch or - * electrostatic discharge might cause an extra read or clock cycle. - * Monitoring the frstdata signal allows to recover from such failure - * situations. - */ - - if (st->gpio_frstdata) { - ret = st->bops->read_block(st->dev, 1, data); - if (ret) - return ret; - - if (!gpiod_get_value(st->gpio_frstdata)) { - ad7606_reset(st); - return -EIO; - } - - data++; - num--; - } - - return st->bops->read_block(st->dev, num, data); -} - -static irqreturn_t ad7606_trigger_handler(int irq, void *p) -{ - struct iio_poll_func *pf = p; - struct iio_dev *indio_dev = pf->indio_dev; - struct ad7606_state *st = iio_priv(indio_dev); - int ret; - - mutex_lock(&st->lock); - - ret = ad7606_read_samples(st); - if (ret == 0) - iio_push_to_buffers_with_timestamp(indio_dev, st->data, - iio_get_time_ns(indio_dev)); - - iio_trigger_notify_done(indio_dev->trig); - /* The rising edge of the CONVST signal starts a new conversion. */ - gpiod_set_value(st->gpio_convst, 1); - - mutex_unlock(&st->lock); - - return IRQ_HANDLED; -} - -static int ad7606_scan_direct(struct iio_dev *indio_dev, unsigned int ch) -{ - struct ad7606_state *st = iio_priv(indio_dev); - int ret; - - gpiod_set_value(st->gpio_convst, 1); - ret = wait_for_completion_timeout(&st->completion, - msecs_to_jiffies(1000)); - if (!ret) { - ret = -ETIMEDOUT; - goto error_ret; - } - - ret = ad7606_read_samples(st); - if (ret == 0) - ret = st->data[ch]; - -error_ret: - gpiod_set_value(st->gpio_convst, 0); - - return ret; -} - -static int ad7606_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, - int *val2, - long m) -{ - int ret; - struct ad7606_state *st = iio_priv(indio_dev); - - switch (m) { - case IIO_CHAN_INFO_RAW: - ret = iio_device_claim_direct_mode(indio_dev); - if (ret) - return ret; - - ret = ad7606_scan_direct(indio_dev, chan->address); - iio_device_release_direct_mode(indio_dev); - - if (ret < 0) - return ret; - *val = (short)ret; - return IIO_VAL_INT; - case IIO_CHAN_INFO_SCALE: - *val = 0; - *val2 = scale_avail[st->range]; - return IIO_VAL_INT_PLUS_MICRO; - case IIO_CHAN_INFO_OVERSAMPLING_RATIO: - *val = st->oversampling; - return IIO_VAL_INT; - } - return -EINVAL; -} - -static ssize_t in_voltage_scale_available_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - int i, len = 0; - - for (i = 0; i < ARRAY_SIZE(scale_avail); i++) - len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06u ", - scale_avail[i]); - - buf[len - 1] = '\n'; - - return len; -} - -static IIO_DEVICE_ATTR_RO(in_voltage_scale_available, 0); - -static int ad7606_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, - int val2, - long mask) -{ - struct ad7606_state *st = iio_priv(indio_dev); - DECLARE_BITMAP(values, 3); - int i; - - switch (mask) { - case IIO_CHAN_INFO_SCALE: - mutex_lock(&st->lock); - i = find_closest(val2, scale_avail, ARRAY_SIZE(scale_avail)); - gpiod_set_value(st->gpio_range, i); - st->range = i; - mutex_unlock(&st->lock); - - return 0; - case IIO_CHAN_INFO_OVERSAMPLING_RATIO: - if (val2) - return -EINVAL; - i = find_closest(val, ad7606_oversampling_avail, - ARRAY_SIZE(ad7606_oversampling_avail)); - - values[0] = i; - - mutex_lock(&st->lock); - gpiod_set_array_value(ARRAY_SIZE(values), st->gpio_os->desc, - st->gpio_os->info, values); - st->oversampling = ad7606_oversampling_avail[i]; - mutex_unlock(&st->lock); - - return 0; - default: - return -EINVAL; - } -} - -static IIO_CONST_ATTR(oversampling_ratio_available, "1 2 4 8 16 32 64"); - -static struct attribute *ad7606_attributes_os_and_range[] = { - &iio_dev_attr_in_voltage_scale_available.dev_attr.attr, - &iio_const_attr_oversampling_ratio_available.dev_attr.attr, - NULL, -}; - -static const struct attribute_group ad7606_attribute_group_os_and_range = { - .attrs = ad7606_attributes_os_and_range, -}; - -static struct attribute *ad7606_attributes_os[] = { - &iio_const_attr_oversampling_ratio_available.dev_attr.attr, - NULL, -}; - -static const struct attribute_group ad7606_attribute_group_os = { - .attrs = ad7606_attributes_os, -}; - -static struct attribute *ad7606_attributes_range[] = { - &iio_dev_attr_in_voltage_scale_available.dev_attr.attr, - NULL, -}; - -static const struct attribute_group ad7606_attribute_group_range = { - .attrs = ad7606_attributes_range, -}; - -#define AD760X_CHANNEL(num, mask) { \ - .type = IIO_VOLTAGE, \ - .indexed = 1, \ - .channel = num, \ - .address = num, \ - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ - .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),\ - .info_mask_shared_by_all = mask, \ - .scan_index = num, \ - .scan_type = { \ - .sign = 's', \ - .realbits = 16, \ - .storagebits = 16, \ - .endianness = IIO_CPU, \ - }, \ -} - -#define AD7605_CHANNEL(num) \ - AD760X_CHANNEL(num, 0) - -#define AD7606_CHANNEL(num) \ - AD760X_CHANNEL(num, BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO)) - -static const struct iio_chan_spec ad7605_channels[] = { - IIO_CHAN_SOFT_TIMESTAMP(4), - AD7605_CHANNEL(0), - AD7605_CHANNEL(1), - AD7605_CHANNEL(2), - AD7605_CHANNEL(3), -}; - -static const struct iio_chan_spec ad7606_channels[] = { - IIO_CHAN_SOFT_TIMESTAMP(8), - AD7606_CHANNEL(0), - AD7606_CHANNEL(1), - AD7606_CHANNEL(2), - AD7606_CHANNEL(3), - AD7606_CHANNEL(4), - AD7606_CHANNEL(5), - AD7606_CHANNEL(6), - AD7606_CHANNEL(7), -}; - -static const struct ad7606_chip_info ad7606_chip_info_tbl[] = { - /* More devices added in future */ - [ID_AD7605_4] = { - .channels = ad7605_channels, - .num_channels = 5, - }, - [ID_AD7606_8] = { - .channels = ad7606_channels, - .num_channels = 9, - .has_oversampling = true, - }, - [ID_AD7606_6] = { - .channels = ad7606_channels, - .num_channels = 7, - .has_oversampling = true, - }, - [ID_AD7606_4] = { - .channels = ad7606_channels, - .num_channels = 5, - .has_oversampling = true, - }, -}; - -static int ad7606_request_gpios(struct ad7606_state *st) -{ - struct device *dev = st->dev; - - st->gpio_convst = devm_gpiod_get(dev, "adi,conversion-start", - GPIOD_OUT_LOW); - if (IS_ERR(st->gpio_convst)) - return PTR_ERR(st->gpio_convst); - - st->gpio_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(st->gpio_reset)) - return PTR_ERR(st->gpio_reset); - - st->gpio_range = devm_gpiod_get_optional(dev, "adi,range", - GPIOD_OUT_LOW); - if (IS_ERR(st->gpio_range)) - return PTR_ERR(st->gpio_range); - - st->gpio_standby = devm_gpiod_get_optional(dev, "standby", - GPIOD_OUT_HIGH); - if (IS_ERR(st->gpio_standby)) - return PTR_ERR(st->gpio_standby); - - st->gpio_frstdata = devm_gpiod_get_optional(dev, "adi,first-data", - GPIOD_IN); - if (IS_ERR(st->gpio_frstdata)) - return PTR_ERR(st->gpio_frstdata); - - if (!st->chip_info->has_oversampling) - return 0; - - st->gpio_os = devm_gpiod_get_array_optional(dev, - "adi,oversampling-ratio", - GPIOD_OUT_LOW); - return PTR_ERR_OR_ZERO(st->gpio_os); -} - -/* - * The BUSY signal indicates when conversions are in progress, so when a rising - * edge of CONVST is applied, BUSY goes logic high and transitions low at the - * end of the entire conversion process. The falling edge of the BUSY signal - * triggers this interrupt. - */ -static irqreturn_t ad7606_interrupt(int irq, void *dev_id) -{ - struct iio_dev *indio_dev = dev_id; - struct ad7606_state *st = iio_priv(indio_dev); - - if (iio_buffer_enabled(indio_dev)) { - gpiod_set_value(st->gpio_convst, 0); - iio_trigger_poll_chained(st->trig); - } else { - complete(&st->completion); - } - - return IRQ_HANDLED; -}; - -static int ad7606_validate_trigger(struct iio_dev *indio_dev, - struct iio_trigger *trig) -{ - struct ad7606_state *st = iio_priv(indio_dev); - - if (st->trig != trig) - return -EINVAL; - - return 0; -} - -static int ad7606_buffer_postenable(struct iio_dev *indio_dev) -{ - struct ad7606_state *st = iio_priv(indio_dev); - - iio_triggered_buffer_postenable(indio_dev); - gpiod_set_value(st->gpio_convst, 1); - - return 0; -} - -static int ad7606_buffer_predisable(struct iio_dev *indio_dev) -{ - struct ad7606_state *st = iio_priv(indio_dev); - - gpiod_set_value(st->gpio_convst, 0); - - return iio_triggered_buffer_predisable(indio_dev); -} - -static const struct iio_buffer_setup_ops ad7606_buffer_ops = { - .postenable = &ad7606_buffer_postenable, - .predisable = &ad7606_buffer_predisable, -}; - -static const struct iio_info ad7606_info_no_os_or_range = { - .read_raw = &ad7606_read_raw, - .validate_trigger = &ad7606_validate_trigger, -}; - -static const struct iio_info ad7606_info_os_and_range = { - .read_raw = &ad7606_read_raw, - .write_raw = &ad7606_write_raw, - .attrs = &ad7606_attribute_group_os_and_range, - .validate_trigger = &ad7606_validate_trigger, -}; - -static const struct iio_info ad7606_info_os = { - .read_raw = &ad7606_read_raw, - .write_raw = &ad7606_write_raw, - .attrs = &ad7606_attribute_group_os, - .validate_trigger = &ad7606_validate_trigger, -}; - -static const struct iio_info ad7606_info_range = { - .read_raw = &ad7606_read_raw, - .write_raw = &ad7606_write_raw, - .attrs = &ad7606_attribute_group_range, - .validate_trigger = &ad7606_validate_trigger, -}; - -static const struct iio_trigger_ops ad7606_trigger_ops = { - .validate_device = iio_trigger_validate_own_device, -}; - -static void ad7606_regulator_disable(void *data) -{ - struct ad7606_state *st = data; - - regulator_disable(st->reg); -} - -int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, - const char *name, unsigned int id, - const struct ad7606_bus_ops *bops) -{ - struct ad7606_state *st; - int ret; - struct iio_dev *indio_dev; - - indio_dev = devm_iio_device_alloc(dev, sizeof(*st)); - if (!indio_dev) - return -ENOMEM; - - st = iio_priv(indio_dev); - dev_set_drvdata(dev, indio_dev); - - st->dev = dev; - mutex_init(&st->lock); - st->bops = bops; - st->base_address = base_address; - /* tied to logic low, analog input range is +/- 5V */ - st->range = 0; - st->oversampling = 1; - - st->reg = devm_regulator_get(dev, "avcc"); - if (IS_ERR(st->reg)) - return PTR_ERR(st->reg); - - ret = regulator_enable(st->reg); - if (ret) { - dev_err(dev, "Failed to enable specified AVcc supply\n"); - return ret; - } - - ret = devm_add_action_or_reset(dev, ad7606_regulator_disable, st); - if (ret) - return ret; - - st->chip_info = &ad7606_chip_info_tbl[id]; - - ret = ad7606_request_gpios(st); - if (ret) - return ret; - - indio_dev->dev.parent = dev; - if (st->gpio_os) { - if (st->gpio_range) - indio_dev->info = &ad7606_info_os_and_range; - else - indio_dev->info = &ad7606_info_os; - } else { - if (st->gpio_range) - indio_dev->info = &ad7606_info_range; - else - indio_dev->info = &ad7606_info_no_os_or_range; - } - indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->name = name; - indio_dev->channels = st->chip_info->channels; - indio_dev->num_channels = st->chip_info->num_channels; - - init_completion(&st->completion); - - ret = ad7606_reset(st); - if (ret) - dev_warn(st->dev, "failed to RESET: no RESET GPIO specified\n"); - - st->trig = devm_iio_trigger_alloc(dev, "%s-dev%d", - indio_dev->name, indio_dev->id); - if (!st->trig) - return -ENOMEM; - - st->trig->ops = &ad7606_trigger_ops; - st->trig->dev.parent = dev; - iio_trigger_set_drvdata(st->trig, indio_dev); - ret = devm_iio_trigger_register(dev, st->trig); - if (ret) - return ret; - - indio_dev->trig = iio_trigger_get(st->trig); - - ret = devm_request_threaded_irq(dev, irq, - NULL, - &ad7606_interrupt, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - name, indio_dev); - if (ret) - return ret; - - ret = devm_iio_triggered_buffer_setup(dev, indio_dev, - &iio_pollfunc_store_time, - &ad7606_trigger_handler, - &ad7606_buffer_ops); - if (ret) - return ret; - - return devm_iio_device_register(dev, indio_dev); -} -EXPORT_SYMBOL_GPL(ad7606_probe); - -#ifdef CONFIG_PM_SLEEP - -static int ad7606_suspend(struct device *dev) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ad7606_state *st = iio_priv(indio_dev); - - if (st->gpio_standby) { - gpiod_set_value(st->gpio_range, 1); - gpiod_set_value(st->gpio_standby, 0); - } - - return 0; -} - -static int ad7606_resume(struct device *dev) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ad7606_state *st = iio_priv(indio_dev); - - if (st->gpio_standby) { - gpiod_set_value(st->gpio_range, st->range); - gpiod_set_value(st->gpio_standby, 1); - ad7606_reset(st); - } - - return 0; -} - -SIMPLE_DEV_PM_OPS(ad7606_pm_ops, ad7606_suspend, ad7606_resume); -EXPORT_SYMBOL_GPL(ad7606_pm_ops); - -#endif - -MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>"); -MODULE_DESCRIPTION("Analog Devices AD7606 ADC"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h deleted file mode 100644 index 5d12410f68e1..000000000000 --- a/drivers/staging/iio/adc/ad7606.h +++ /dev/null @@ -1,99 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * AD7606 ADC driver - * - * Copyright 2011 Analog Devices Inc. - */ - -#ifndef IIO_ADC_AD7606_H_ -#define IIO_ADC_AD7606_H_ - -/** - * struct ad7606_chip_info - chip specific information - * @channels: channel specification - * @num_channels: number of channels - * @has_oversampling: whether the device has oversampling support - */ -struct ad7606_chip_info { - const struct iio_chan_spec *channels; - unsigned int num_channels; - bool has_oversampling; -}; - -/** - * struct ad7606_state - driver instance specific data - * @dev pointer to kernel device - * @chip_info entry in the table of chips that describes this device - * @reg regulator info for the the power supply of the device - * @bops bus operations (SPI or parallel) - * @range voltage range selection, selects which scale to apply - * @oversampling oversampling selection - * @base_address address from where to read data in parallel operation - * @lock protect sensor state from concurrent accesses to GPIOs - * @gpio_convst GPIO descriptor for conversion start signal (CONVST) - * @gpio_reset GPIO descriptor for device hard-reset - * @gpio_range GPIO descriptor for range selection - * @gpio_standby GPIO descriptor for stand-by signal (STBY), - * controls power-down mode of device - * @gpio_frstdata GPIO descriptor for reading from device when data - * is being read on the first channel - * @gpio_os GPIO descriptors to control oversampling on the device - * @complete completion to indicate end of conversion - * @trig The IIO trigger associated with the device. - * @data buffer for reading data from the device - */ -struct ad7606_state { - struct device *dev; - const struct ad7606_chip_info *chip_info; - struct regulator *reg; - const struct ad7606_bus_ops *bops; - unsigned int range; - unsigned int oversampling; - void __iomem *base_address; - - struct mutex lock; /* protect sensor state */ - struct gpio_desc *gpio_convst; - struct gpio_desc *gpio_reset; - struct gpio_desc *gpio_range; - struct gpio_desc *gpio_standby; - struct gpio_desc *gpio_frstdata; - struct gpio_descs *gpio_os; - struct iio_trigger *trig; - struct completion completion; - - /* - * DMA (thus cache coherency maintenance) requires the - * transfer buffers to live in their own cache lines. - * 8 * 16-bit samples + 64-bit timestamp - */ - unsigned short data[12] ____cacheline_aligned; -}; - -/** - * struct ad7606_bus_ops - driver bus operations - * @read_block function pointer for reading blocks of data - */ -struct ad7606_bus_ops { - /* more methods added in future? */ - int (*read_block)(struct device *dev, int num, void *data); -}; - -int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, - const char *name, unsigned int id, - const struct ad7606_bus_ops *bops); - -enum ad7606_supported_device_ids { - ID_AD7605_4, - ID_AD7606_8, - ID_AD7606_6, - ID_AD7606_4 -}; - -#ifdef CONFIG_PM_SLEEP -extern const struct dev_pm_ops ad7606_pm_ops; -#define AD7606_PM_OPS (&ad7606_pm_ops) -#else -#define AD7606_PM_OPS NULL -#endif - -#endif /* IIO_ADC_AD7606_H_ */ diff --git a/drivers/staging/iio/adc/ad7606_par.c b/drivers/staging/iio/adc/ad7606_par.c deleted file mode 100644 index 1b08028facde..000000000000 --- a/drivers/staging/iio/adc/ad7606_par.c +++ /dev/null @@ -1,105 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * AD7606 Parallel Interface ADC driver - * - * Copyright 2011 Analog Devices Inc. - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/types.h> -#include <linux/err.h> -#include <linux/io.h> - -#include <linux/iio/iio.h> -#include "ad7606.h" - -static int ad7606_par16_read_block(struct device *dev, - int count, void *buf) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ad7606_state *st = iio_priv(indio_dev); - - insw((unsigned long)st->base_address, buf, count); - - return 0; -} - -static const struct ad7606_bus_ops ad7606_par16_bops = { - .read_block = ad7606_par16_read_block, -}; - -static int ad7606_par8_read_block(struct device *dev, - int count, void *buf) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ad7606_state *st = iio_priv(indio_dev); - - insb((unsigned long)st->base_address, buf, count * 2); - - return 0; -} - -static const struct ad7606_bus_ops ad7606_par8_bops = { - .read_block = ad7606_par8_read_block, -}; - -static int ad7606_par_probe(struct platform_device *pdev) -{ - const struct platform_device_id *id = platform_get_device_id(pdev); - struct resource *res; - void __iomem *addr; - resource_size_t remap_size; - int irq; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "no irq: %d\n", irq); - return irq; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - addr = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(addr)) - return PTR_ERR(addr); - - remap_size = resource_size(res); - - return ad7606_probe(&pdev->dev, irq, addr, - id->name, id->driver_data, - remap_size > 1 ? &ad7606_par16_bops : - &ad7606_par8_bops); -} - -static const struct platform_device_id ad7606_driver_ids[] = { - { .name = "ad7605-4", .driver_data = ID_AD7605_4, }, - { .name = "ad7606-4", .driver_data = ID_AD7606_4, }, - { .name = "ad7606-6", .driver_data = ID_AD7606_6, }, - { .name = "ad7606-8", .driver_data = ID_AD7606_8, }, - { } -}; -MODULE_DEVICE_TABLE(platform, ad7606_driver_ids); - -static const struct of_device_id ad7606_of_match[] = { - { .compatible = "adi,ad7605-4" }, - { .compatible = "adi,ad7606-4" }, - { .compatible = "adi,ad7606-6" }, - { .compatible = "adi,ad7606-8" }, - { }, -}; -MODULE_DEVICE_TABLE(of, ad7606_of_match); - -static struct platform_driver ad7606_driver = { - .probe = ad7606_par_probe, - .id_table = ad7606_driver_ids, - .driver = { - .name = "ad7606", - .pm = AD7606_PM_OPS, - .of_match_table = ad7606_of_match, - }, -}; -module_platform_driver(ad7606_driver); - -MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>"); -MODULE_DESCRIPTION("Analog Devices AD7606 ADC"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/staging/iio/adc/ad7606_spi.c b/drivers/staging/iio/adc/ad7606_spi.c deleted file mode 100644 index 4fd0ec36a086..000000000000 --- a/drivers/staging/iio/adc/ad7606_spi.c +++ /dev/null @@ -1,82 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * AD7606 SPI ADC driver - * - * Copyright 2011 Analog Devices Inc. - */ - -#include <linux/module.h> -#include <linux/spi/spi.h> -#include <linux/types.h> -#include <linux/err.h> - -#include <linux/iio/iio.h> -#include "ad7606.h" - -#define MAX_SPI_FREQ_HZ 23500000 /* VDRIVE above 4.75 V */ - -static int ad7606_spi_read_block(struct device *dev, - int count, void *buf) -{ - struct spi_device *spi = to_spi_device(dev); - int i, ret; - unsigned short *data = buf; - __be16 *bdata = buf; - - ret = spi_read(spi, buf, count * 2); - if (ret < 0) { - dev_err(&spi->dev, "SPI read error\n"); - return ret; - } - - for (i = 0; i < count; i++) - data[i] = be16_to_cpu(bdata[i]); - - return 0; -} - -static const struct ad7606_bus_ops ad7606_spi_bops = { - .read_block = ad7606_spi_read_block, -}; - -static int ad7606_spi_probe(struct spi_device *spi) -{ - const struct spi_device_id *id = spi_get_device_id(spi); - - return ad7606_probe(&spi->dev, spi->irq, NULL, - id->name, id->driver_data, - &ad7606_spi_bops); -} - -static const struct spi_device_id ad7606_id_table[] = { - { "ad7605-4", ID_AD7605_4 }, - { "ad7606-4", ID_AD7606_4 }, - { "ad7606-6", ID_AD7606_6 }, - { "ad7606-8", ID_AD7606_8 }, - {} -}; -MODULE_DEVICE_TABLE(spi, ad7606_id_table); - -static const struct of_device_id ad7606_of_match[] = { - { .compatible = "adi,ad7605-4" }, - { .compatible = "adi,ad7606-4" }, - { .compatible = "adi,ad7606-6" }, - { .compatible = "adi,ad7606-8" }, - { }, -}; -MODULE_DEVICE_TABLE(of, ad7606_of_match); - -static struct spi_driver ad7606_driver = { - .driver = { - .name = "ad7606", - .of_match_table = ad7606_of_match, - .pm = AD7606_PM_OPS, - }, - .probe = ad7606_spi_probe, - .id_table = ad7606_id_table, -}; -module_spi_driver(ad7606_driver); - -MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>"); -MODULE_DESCRIPTION("Analog Devices AD7606 ADC"); -MODULE_LICENSE("GPL v2"); |