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Commit 7feae871 authored by Dan O'Donovan's avatar Dan O'Donovan Committed by Jonathan Cameron
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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
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+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,