Commit 7feae871 authored by Dan O'Donovan's avatar Dan O'Donovan Committed by Jonathan Cameron
Browse files

iio: adc: ti-adc081c: add ACPI device ID matching 



Add ACPI device ID matching for TI ADC081C/ADC101C/ADC121C ADCs.

Signed-off-by: default avatarDan O'Donovan <dan@emutex.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 3b8e73ec

drivers/iio/adc/ti-adc081c.c

+25 −1
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/i2c.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/acpi.h>



#include <linux/iio/iio.h>

#include <linux/iio/buffer.h>
@@ -149,12 +150,24 @@ static int adc081c_probe(struct i2c_client *client, 
{

	struct iio_dev *iio;

	struct adc081c *adc;

	struct adcxx1c_model *model = &adcxx1c_models[id->driver_data];

	struct adcxx1c_model *model;

	int err;



	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))

		return -EOPNOTSUPP;



	if (ACPI_COMPANION(&client->dev)) {

		const struct acpi_device_id *ad_id;



		ad_id = acpi_match_device(client->dev.driver->acpi_match_table,

					  &client->dev);

		if (!ad_id)

			return -ENODEV;

		model = &adcxx1c_models[ad_id->driver_data];

	} else {

		model = &adcxx1c_models[id->driver_data];

	}



	iio = devm_iio_device_alloc(&client->dev, sizeof(*adc));

	if (!iio)

		return -ENOMEM;
@@ -231,10 +244,21 @@ static const struct of_device_id adc081c_of_match[] = { 
MODULE_DEVICE_TABLE(of, adc081c_of_match);

#endif



#ifdef CONFIG_ACPI

static const struct acpi_device_id adc081c_acpi_match[] = {

	{ "ADC081C", ADC081C },

	{ "ADC101C", ADC101C },

	{ "ADC121C", ADC121C },

	{ }

};

MODULE_DEVICE_TABLE(acpi, adc081c_acpi_match);

#endif



static struct i2c_driver adc081c_driver = {

	.driver = {

		.name = "adc081c",

		.of_match_table = of_match_ptr(adc081c_of_match),

		.acpi_match_table = ACPI_PTR(adc081c_acpi_match),

	},

	.probe = adc081c_probe,

	.remove = adc081c_remove,