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| author | Dan O'Donovan <dan@emutex.com> | 2016-05-27 18:37:30 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-06-27 20:59:09 +0100 |
| commit | 7feae871b263b509625b3bf946d4f1d72bb77c70 (patch) | |
| tree | 2176ac8ec5ca87a14994213185729e4b7929f022 /drivers/iio/adc | |
| parent | 3b8e73ec822cecf62e68e12c5320cf329d69923a (diff) | |
| download | linux-7feae871b263b509625b3bf946d4f1d72bb77c70.tar.gz linux-7feae871b263b509625b3bf946d4f1d72bb77c70.tar.bz2 linux-7feae871b263b509625b3bf946d4f1d72bb77c70.zip | |
iio: adc: ti-adc081c: add ACPI device ID matching
Add ACPI device ID matching for TI ADC081C/ADC101C/ADC121C ADCs.
Signed-off-by: Dan O'Donovan <dan@emutex.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/ti-adc081c.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c index 9fd032d9f402..f8807adc08c4 100644 --- a/drivers/iio/adc/ti-adc081c.c +++ b/drivers/iio/adc/ti-adc081c.c @@ -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, |