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Message-ID: <20190714171634.197944fc@archlinux>
Date: Sun, 14 Jul 2019 17:16:34 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Guenter Roeck <linux@...ck-us.net>
Cc: devicetree@...r.kernel.org, linux-hwmon@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
Dirk Eibach <eibach@...ys.de>
Subject: Re: [PATCH] hwmon: Remove ads1015 driver
On Mon, 1 Jul 2019 11:12:38 -0700
Guenter Roeck <linux@...ck-us.net> wrote:
> A driver for ADS1015 with more functionality is available in the iio
> subsystem.
>
> Remove the hwmon driver as duplicate. If the chip is used for hardware
> monitoring, the iio->hwmon bridge should be used.
>
> Cc: Dirk Eibach <eibach@...ys.de>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
On the basis I agree with the concept of dropping this driver:
Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Thanks for tidying this up.
Jonathan
> ---
> Current plan is to queue this removal for v5.4 (not v5.3) in the hwmon
> tree.
>
> .../devicetree/bindings/hwmon/ads1015.txt | 73 -----
> .../devicetree/bindings/iio/adc/ads1015.txt | 73 +++++
> Documentation/hwmon/ads1015.rst | 90 ------
> Documentation/hwmon/index.rst | 1 -
> MAINTAINERS | 8 -
> drivers/hwmon/Kconfig | 10 -
> drivers/hwmon/Makefile | 1 -
> drivers/hwmon/ads1015.c | 324 ---------------------
> drivers/iio/adc/Kconfig | 2 +-
> 9 files changed, 74 insertions(+), 508 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/hwmon/ads1015.txt
> create mode 100644 Documentation/devicetree/bindings/iio/adc/ads1015.txt
> delete mode 100644 Documentation/hwmon/ads1015.rst
> delete mode 100644 drivers/hwmon/ads1015.c
>
> diff --git a/Documentation/devicetree/bindings/hwmon/ads1015.txt b/Documentation/devicetree/bindings/hwmon/ads1015.txt
> deleted file mode 100644
> index 918a507d1159..000000000000
> --- a/Documentation/devicetree/bindings/hwmon/ads1015.txt
> +++ /dev/null
> @@ -1,73 +0,0 @@
> -ADS1015 (I2C)
> -
> -This device is a 12-bit A-D converter with 4 inputs.
> -
> -The inputs can be used single ended or in certain differential combinations.
> -
> -For configuration all possible combinations are mapped to 8 channels:
> - 0: Voltage over AIN0 and AIN1.
> - 1: Voltage over AIN0 and AIN3.
> - 2: Voltage over AIN1 and AIN3.
> - 3: Voltage over AIN2 and AIN3.
> - 4: Voltage over AIN0 and GND.
> - 5: Voltage over AIN1 and GND.
> - 6: Voltage over AIN2 and GND.
> - 7: Voltage over AIN3 and GND.
> -
> -Each channel can be configured individually:
> - - pga is the programmable gain amplifier (values are full scale)
> - 0: +/- 6.144 V
> - 1: +/- 4.096 V
> - 2: +/- 2.048 V (default)
> - 3: +/- 1.024 V
> - 4: +/- 0.512 V
> - 5: +/- 0.256 V
> - - data_rate in samples per second
> - 0: 128
> - 1: 250
> - 2: 490
> - 3: 920
> - 4: 1600 (default)
> - 5: 2400
> - 6: 3300
> -
> -1) The /ads1015 node
> -
> - Required properties:
> -
> - - compatible : must be "ti,ads1015"
> - - reg : I2C bus address of the device
> - - #address-cells : must be <1>
> - - #size-cells : must be <0>
> -
> - The node contains child nodes for each channel that the platform uses.
> -
> - Example ADS1015 node:
> -
> - ads1015@49 {
> - compatible = "ti,ads1015";
> - reg = <0x49>;
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - [ child node definitions... ]
> - }
> -
> -2) channel nodes
> -
> - Required properties:
> -
> - - reg : the channel number
> -
> - Optional properties:
> -
> - - ti,gain : the programmable gain amplifier setting
> - - ti,datarate : the converter data rate
> -
> - Example ADS1015 channel node:
> -
> - channel@4 {
> - reg = <4>;
> - ti,gain = <3>;
> - ti,datarate = <5>;
> - };
> diff --git a/Documentation/devicetree/bindings/iio/adc/ads1015.txt b/Documentation/devicetree/bindings/iio/adc/ads1015.txt
> new file mode 100644
> index 000000000000..918a507d1159
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/ads1015.txt
> @@ -0,0 +1,73 @@
> +ADS1015 (I2C)
> +
> +This device is a 12-bit A-D converter with 4 inputs.
> +
> +The inputs can be used single ended or in certain differential combinations.
> +
> +For configuration all possible combinations are mapped to 8 channels:
> + 0: Voltage over AIN0 and AIN1.
> + 1: Voltage over AIN0 and AIN3.
> + 2: Voltage over AIN1 and AIN3.
> + 3: Voltage over AIN2 and AIN3.
> + 4: Voltage over AIN0 and GND.
> + 5: Voltage over AIN1 and GND.
> + 6: Voltage over AIN2 and GND.
> + 7: Voltage over AIN3 and GND.
> +
> +Each channel can be configured individually:
> + - pga is the programmable gain amplifier (values are full scale)
> + 0: +/- 6.144 V
> + 1: +/- 4.096 V
> + 2: +/- 2.048 V (default)
> + 3: +/- 1.024 V
> + 4: +/- 0.512 V
> + 5: +/- 0.256 V
> + - data_rate in samples per second
> + 0: 128
> + 1: 250
> + 2: 490
> + 3: 920
> + 4: 1600 (default)
> + 5: 2400
> + 6: 3300
> +
> +1) The /ads1015 node
> +
> + Required properties:
> +
> + - compatible : must be "ti,ads1015"
> + - reg : I2C bus address of the device
> + - #address-cells : must be <1>
> + - #size-cells : must be <0>
> +
> + The node contains child nodes for each channel that the platform uses.
> +
> + Example ADS1015 node:
> +
> + ads1015@49 {
> + compatible = "ti,ads1015";
> + reg = <0x49>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + [ child node definitions... ]
> + }
> +
> +2) channel nodes
> +
> + Required properties:
> +
> + - reg : the channel number
> +
> + Optional properties:
> +
> + - ti,gain : the programmable gain amplifier setting
> + - ti,datarate : the converter data rate
> +
> + Example ADS1015 channel node:
> +
> + channel@4 {
> + reg = <4>;
> + ti,gain = <3>;
> + ti,datarate = <5>;
> + };
> diff --git a/Documentation/hwmon/ads1015.rst b/Documentation/hwmon/ads1015.rst
> deleted file mode 100644
> index e0951c4e57bb..000000000000
> --- a/Documentation/hwmon/ads1015.rst
> +++ /dev/null
> @@ -1,90 +0,0 @@
> -Kernel driver ads1015
> -=====================
> -
> -Supported chips:
> -
> - * Texas Instruments ADS1015
> -
> - Prefix: 'ads1015'
> -
> - Datasheet: Publicly available at the Texas Instruments website:
> -
> - http://focus.ti.com/lit/ds/symlink/ads1015.pdf
> -
> - * Texas Instruments ADS1115
> -
> - Prefix: 'ads1115'
> -
> - Datasheet: Publicly available at the Texas Instruments website:
> -
> - http://focus.ti.com/lit/ds/symlink/ads1115.pdf
> -
> -Authors:
> - Dirk Eibach, Guntermann & Drunck GmbH <eibach@...ys.de>
> -
> -Description
> ------------
> -
> -This driver implements support for the Texas Instruments ADS1015/ADS1115.
> -
> -This device is a 12/16-bit A-D converter with 4 inputs.
> -
> -The inputs can be used single ended or in certain differential combinations.
> -
> -The inputs can be made available by 8 sysfs input files in0_input - in7_input:
> -
> - - in0: Voltage over AIN0 and AIN1.
> - - in1: Voltage over AIN0 and AIN3.
> - - in2: Voltage over AIN1 and AIN3.
> - - in3: Voltage over AIN2 and AIN3.
> - - in4: Voltage over AIN0 and GND.
> - - in5: Voltage over AIN1 and GND.
> - - in6: Voltage over AIN2 and GND.
> - - in7: Voltage over AIN3 and GND.
> -
> -Which inputs are available can be configured using platform data or devicetree.
> -
> -By default all inputs are exported.
> -
> -Platform Data
> --------------
> -
> -In linux/platform_data/ads1015.h platform data is defined, channel_data contains
> -configuration data for the used input combinations:
> -
> -- pga is the programmable gain amplifier (values are full scale)
> -
> - - 0: +/- 6.144 V
> - - 1: +/- 4.096 V
> - - 2: +/- 2.048 V
> - - 3: +/- 1.024 V
> - - 4: +/- 0.512 V
> - - 5: +/- 0.256 V
> -
> -- data_rate in samples per second
> -
> - - 0: 128
> - - 1: 250
> - - 2: 490
> - - 3: 920
> - - 4: 1600
> - - 5: 2400
> - - 6: 3300
> -
> -Example::
> -
> - struct ads1015_platform_data data = {
> - .channel_data = {
> - [2] = { .enabled = true, .pga = 1, .data_rate = 0 },
> - [4] = { .enabled = true, .pga = 4, .data_rate = 5 },
> - }
> - };
> -
> -In this case only in2_input (FS +/- 4.096 V, 128 SPS) and in4_input
> -(FS +/- 0.512 V, 2400 SPS) would be created.
> -
> -Devicetree
> -----------
> -
> -Configuration is also possible via devicetree:
> -Documentation/devicetree/bindings/hwmon/ads1015.txt
> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> index ee090e51653a..1d301d0e6f4d 100644
> --- a/Documentation/hwmon/index.rst
> +++ b/Documentation/hwmon/index.rst
> @@ -30,7 +30,6 @@ Hardware Monitoring Kernel Drivers
> adm1031
> adm1275
> adm9240
> - ads1015
> ads7828
> adt7410
> adt7411
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 01a52fc964da..11744a3735f0 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -517,14 +517,6 @@ W: http://ez.analog.com/community/linux-device-drivers
> S: Supported
> F: drivers/video/backlight/adp8860_bl.c
>
> -ADS1015 HARDWARE MONITOR DRIVER
> -M: Dirk Eibach <eibach@...ys.de>
> -L: linux-hwmon@...r.kernel.org
> -S: Maintained
> -F: Documentation/hwmon/ads1015.rst
> -F: drivers/hwmon/ads1015.c
> -F: include/linux/platform_data/ads1015.h
> -
> ADT746X FAN DRIVER
> M: Colin Leroy <colin@...ino.net>
> S: Maintained
> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
> index 650dd71f9724..76cd0647ee2c 100644
> --- a/drivers/hwmon/Kconfig
> +++ b/drivers/hwmon/Kconfig
> @@ -1570,16 +1570,6 @@ config SENSORS_ADC128D818
> This driver can also be built as a module. If so, the module
> will be called adc128d818.
>
> -config SENSORS_ADS1015
> - tristate "Texas Instruments ADS1015"
> - depends on I2C
> - help
> - If you say yes here you get support for Texas Instruments
> - ADS1015/ADS1115 12/16-bit 4-input ADC device.
> -
> - This driver can also be built as a module. If so, the module
> - will be called ads1015.
> -
> config SENSORS_ADS7828
> tristate "Texas Instruments ADS7828 and compatibles"
> depends on I2C
> diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
> index 8db472ea04f0..6a52a964038b 100644
> --- a/drivers/hwmon/Makefile
> +++ b/drivers/hwmon/Makefile
> @@ -35,7 +35,6 @@ obj-$(CONFIG_SENSORS_ADM1026) += adm1026.o
> obj-$(CONFIG_SENSORS_ADM1029) += adm1029.o
> obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o
> obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o
> -obj-$(CONFIG_SENSORS_ADS1015) += ads1015.o
> obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o
> obj-$(CONFIG_SENSORS_ADS7871) += ads7871.o
> obj-$(CONFIG_SENSORS_ADT7X10) += adt7x10.o
> diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
> deleted file mode 100644
> index 3727a3762eb8..000000000000
> --- a/drivers/hwmon/ads1015.c
> +++ /dev/null
> @@ -1,324 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0-or-later
> -/*
> - * ads1015.c - lm_sensors driver for ads1015 12-bit 4-input ADC
> - * (C) Copyright 2010
> - * Dirk Eibach, Guntermann & Drunck GmbH <eibach@...ys.de>
> - *
> - * Based on the ads7828 driver by Steve Hardy.
> - *
> - * Datasheet available at: http://focus.ti.com/lit/ds/symlink/ads1015.pdf
> - */
> -
> -#include <linux/module.h>
> -#include <linux/init.h>
> -#include <linux/slab.h>
> -#include <linux/delay.h>
> -#include <linux/i2c.h>
> -#include <linux/hwmon.h>
> -#include <linux/hwmon-sysfs.h>
> -#include <linux/err.h>
> -#include <linux/mutex.h>
> -#include <linux/of_device.h>
> -#include <linux/of.h>
> -
> -#include <linux/platform_data/ads1015.h>
> -
> -/* ADS1015 registers */
> -enum {
> - ADS1015_CONVERSION = 0,
> - ADS1015_CONFIG = 1,
> -};
> -
> -/* PGA fullscale voltages in mV */
> -static const unsigned int fullscale_table[8] = {
> - 6144, 4096, 2048, 1024, 512, 256, 256, 256 };
> -
> -/* Data rates in samples per second */
> -static const unsigned int data_rate_table_1015[8] = {
> - 128, 250, 490, 920, 1600, 2400, 3300, 3300
> -};
> -
> -static const unsigned int data_rate_table_1115[8] = {
> - 8, 16, 32, 64, 128, 250, 475, 860
> -};
> -
> -#define ADS1015_DEFAULT_CHANNELS 0xff
> -#define ADS1015_DEFAULT_PGA 2
> -#define ADS1015_DEFAULT_DATA_RATE 4
> -
> -enum ads1015_chips {
> - ads1015,
> - ads1115,
> -};
> -
> -struct ads1015_data {
> - struct device *hwmon_dev;
> - struct mutex update_lock; /* mutex protect updates */
> - struct ads1015_channel_data channel_data[ADS1015_CHANNELS];
> - enum ads1015_chips id;
> -};
> -
> -static int ads1015_read_adc(struct i2c_client *client, unsigned int channel)
> -{
> - u16 config;
> - struct ads1015_data *data = i2c_get_clientdata(client);
> - unsigned int pga = data->channel_data[channel].pga;
> - unsigned int data_rate = data->channel_data[channel].data_rate;
> - unsigned int conversion_time_ms;
> - const unsigned int * const rate_table = data->id == ads1115 ?
> - data_rate_table_1115 : data_rate_table_1015;
> - int res;
> -
> - mutex_lock(&data->update_lock);
> -
> - /* get channel parameters */
> - res = i2c_smbus_read_word_swapped(client, ADS1015_CONFIG);
> - if (res < 0)
> - goto err_unlock;
> - config = res;
> - conversion_time_ms = DIV_ROUND_UP(1000, rate_table[data_rate]);
> -
> - /* setup and start single conversion */
> - config &= 0x001f;
> - config |= (1 << 15) | (1 << 8);
> - config |= (channel & 0x0007) << 12;
> - config |= (pga & 0x0007) << 9;
> - config |= (data_rate & 0x0007) << 5;
> -
> - res = i2c_smbus_write_word_swapped(client, ADS1015_CONFIG, config);
> - if (res < 0)
> - goto err_unlock;
> -
> - /* wait until conversion finished */
> - msleep(conversion_time_ms);
> - res = i2c_smbus_read_word_swapped(client, ADS1015_CONFIG);
> - if (res < 0)
> - goto err_unlock;
> - config = res;
> - if (!(config & (1 << 15))) {
> - /* conversion not finished in time */
> - res = -EIO;
> - goto err_unlock;
> - }
> -
> - res = i2c_smbus_read_word_swapped(client, ADS1015_CONVERSION);
> -
> -err_unlock:
> - mutex_unlock(&data->update_lock);
> - return res;
> -}
> -
> -static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel,
> - s16 reg)
> -{
> - struct ads1015_data *data = i2c_get_clientdata(client);
> - unsigned int pga = data->channel_data[channel].pga;
> - int fullscale = fullscale_table[pga];
> - const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
> -
> - return DIV_ROUND_CLOSEST(reg * fullscale, mask);
> -}
> -
> -/* sysfs callback function */
> -static ssize_t in_show(struct device *dev, struct device_attribute *da,
> - char *buf)
> -{
> - struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
> - struct i2c_client *client = to_i2c_client(dev);
> - int res;
> - int index = attr->index;
> -
> - res = ads1015_read_adc(client, index);
> - if (res < 0)
> - return res;
> -
> - return sprintf(buf, "%d\n", ads1015_reg_to_mv(client, index, res));
> -}
> -
> -static const struct sensor_device_attribute ads1015_in[] = {
> - SENSOR_ATTR_RO(in0_input, in, 0),
> - SENSOR_ATTR_RO(in1_input, in, 1),
> - SENSOR_ATTR_RO(in2_input, in, 2),
> - SENSOR_ATTR_RO(in3_input, in, 3),
> - SENSOR_ATTR_RO(in4_input, in, 4),
> - SENSOR_ATTR_RO(in5_input, in, 5),
> - SENSOR_ATTR_RO(in6_input, in, 6),
> - SENSOR_ATTR_RO(in7_input, in, 7),
> -};
> -
> -/*
> - * Driver interface
> - */
> -
> -static int ads1015_remove(struct i2c_client *client)
> -{
> - struct ads1015_data *data = i2c_get_clientdata(client);
> - int k;
> -
> - hwmon_device_unregister(data->hwmon_dev);
> - for (k = 0; k < ADS1015_CHANNELS; ++k)
> - device_remove_file(&client->dev, &ads1015_in[k].dev_attr);
> - return 0;
> -}
> -
> -#ifdef CONFIG_OF
> -static int ads1015_get_channels_config_of(struct i2c_client *client)
> -{
> - struct ads1015_data *data = i2c_get_clientdata(client);
> - struct device_node *node;
> -
> - if (!client->dev.of_node
> - || !of_get_next_child(client->dev.of_node, NULL))
> - return -EINVAL;
> -
> - for_each_child_of_node(client->dev.of_node, node) {
> - u32 pval;
> - unsigned int channel;
> - unsigned int pga = ADS1015_DEFAULT_PGA;
> - unsigned int data_rate = ADS1015_DEFAULT_DATA_RATE;
> -
> - if (of_property_read_u32(node, "reg", &pval)) {
> - dev_err(&client->dev, "invalid reg on %pOF\n", node);
> - continue;
> - }
> -
> - channel = pval;
> - if (channel >= ADS1015_CHANNELS) {
> - dev_err(&client->dev,
> - "invalid channel index %d on %pOF\n",
> - channel, node);
> - continue;
> - }
> -
> - if (!of_property_read_u32(node, "ti,gain", &pval)) {
> - pga = pval;
> - if (pga > 6) {
> - dev_err(&client->dev, "invalid gain on %pOF\n",
> - node);
> - return -EINVAL;
> - }
> - }
> -
> - if (!of_property_read_u32(node, "ti,datarate", &pval)) {
> - data_rate = pval;
> - if (data_rate > 7) {
> - dev_err(&client->dev,
> - "invalid data_rate on %pOF\n", node);
> - return -EINVAL;
> - }
> - }
> -
> - data->channel_data[channel].enabled = true;
> - data->channel_data[channel].pga = pga;
> - data->channel_data[channel].data_rate = data_rate;
> - }
> -
> - return 0;
> -}
> -#endif
> -
> -static void ads1015_get_channels_config(struct i2c_client *client)
> -{
> - unsigned int k;
> - struct ads1015_data *data = i2c_get_clientdata(client);
> - struct ads1015_platform_data *pdata = dev_get_platdata(&client->dev);
> -
> - /* prefer platform data */
> - if (pdata) {
> - memcpy(data->channel_data, pdata->channel_data,
> - sizeof(data->channel_data));
> - return;
> - }
> -
> -#ifdef CONFIG_OF
> - if (!ads1015_get_channels_config_of(client))
> - return;
> -#endif
> -
> - /* fallback on default configuration */
> - for (k = 0; k < ADS1015_CHANNELS; ++k) {
> - data->channel_data[k].enabled = true;
> - data->channel_data[k].pga = ADS1015_DEFAULT_PGA;
> - data->channel_data[k].data_rate = ADS1015_DEFAULT_DATA_RATE;
> - }
> -}
> -
> -static int ads1015_probe(struct i2c_client *client,
> - const struct i2c_device_id *id)
> -{
> - struct ads1015_data *data;
> - int err;
> - unsigned int k;
> -
> - data = devm_kzalloc(&client->dev, sizeof(struct ads1015_data),
> - GFP_KERNEL);
> - if (!data)
> - return -ENOMEM;
> -
> - if (client->dev.of_node)
> - data->id = (enum ads1015_chips)
> - of_device_get_match_data(&client->dev);
> - else
> - data->id = id->driver_data;
> - i2c_set_clientdata(client, data);
> - mutex_init(&data->update_lock);
> -
> - /* build sysfs attribute group */
> - ads1015_get_channels_config(client);
> - for (k = 0; k < ADS1015_CHANNELS; ++k) {
> - if (!data->channel_data[k].enabled)
> - continue;
> - err = device_create_file(&client->dev, &ads1015_in[k].dev_attr);
> - if (err)
> - goto exit_remove;
> - }
> -
> - data->hwmon_dev = hwmon_device_register(&client->dev);
> - if (IS_ERR(data->hwmon_dev)) {
> - err = PTR_ERR(data->hwmon_dev);
> - goto exit_remove;
> - }
> -
> - return 0;
> -
> -exit_remove:
> - for (k = 0; k < ADS1015_CHANNELS; ++k)
> - device_remove_file(&client->dev, &ads1015_in[k].dev_attr);
> - return err;
> -}
> -
> -static const struct i2c_device_id ads1015_id[] = {
> - { "ads1015", ads1015},
> - { "ads1115", ads1115},
> - { }
> -};
> -MODULE_DEVICE_TABLE(i2c, ads1015_id);
> -
> -static const struct of_device_id __maybe_unused ads1015_of_match[] = {
> - {
> - .compatible = "ti,ads1015",
> - .data = (void *)ads1015
> - },
> - {
> - .compatible = "ti,ads1115",
> - .data = (void *)ads1115
> - },
> - { },
> -};
> -MODULE_DEVICE_TABLE(of, ads1015_of_match);
> -
> -static struct i2c_driver ads1015_driver = {
> - .driver = {
> - .name = "ads1015",
> - .of_match_table = of_match_ptr(ads1015_of_match),
> - },
> - .probe = ads1015_probe,
> - .remove = ads1015_remove,
> - .id_table = ads1015_id,
> -};
> -
> -module_i2c_driver(ads1015_driver);
> -
> -MODULE_AUTHOR("Dirk Eibach <eibach@...ys.de>");
> -MODULE_DESCRIPTION("ADS1015 driver");
> -MODULE_LICENSE("GPL");
> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> index f96a7702b020..47d073006a13 100644
> --- a/drivers/iio/adc/Kconfig
> +++ b/drivers/iio/adc/Kconfig
> @@ -958,7 +958,7 @@ config TI_ADC161S626
>
> config TI_ADS1015
> tristate "Texas Instruments ADS1015 ADC"
> - depends on I2C && !SENSORS_ADS1015
> + depends on I2C
> select REGMAP_I2C
> select IIO_BUFFER
> select IIO_TRIGGERED_BUFFER
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