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| author | Javier Martinez Canillas <javier@osg.samsung.com> | 2017-03-15 01:45:00 -0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-03-19 10:56:58 +0000 |
| commit | c172d22d33de5edc26440def1ed7c2c1a1ec724c (patch) | |
| tree | ecb464e5d7c3e23e896f431944aae00b61ac64d0 /drivers/iio/adc/ti-ads1015.c | |
| parent | 7373340367d8546910128ac301bd2c0d47e71e85 (diff) | |
| download | linux-c172d22d33de5edc26440def1ed7c2c1a1ec724c.tar.bz2 | |
iio: adc: ti-ads1015: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.
But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/ti-ads1015.c')
| -rw-r--r-- | drivers/iio/adc/ti-ads1015.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c index 422b314f5a3f..f76d979fb7e8 100644 --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -15,6 +15,7 @@ */ #include <linux/module.h> +#include <linux/of_device.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/regmap.h> @@ -55,7 +56,7 @@ #define ADS1015_DEFAULT_DATA_RATE 4 #define ADS1015_DEFAULT_CHAN 0 -enum { +enum chip_ids { ADS1015, ADS1115, }; @@ -578,6 +579,7 @@ static int ads1015_probe(struct i2c_client *client, struct iio_dev *indio_dev; struct ads1015_data *data; int ret; + enum chip_ids chip; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); if (!indio_dev) @@ -593,7 +595,11 @@ static int ads1015_probe(struct i2c_client *client, indio_dev->name = ADS1015_DRV_NAME; indio_dev->modes = INDIO_DIRECT_MODE; - switch (id->driver_data) { + if (client->dev.of_node) + chip = (enum chip_ids)of_device_get_match_data(&client->dev); + else + chip = id->driver_data; + switch (chip) { case ADS1015: indio_dev->channels = ads1015_channels; indio_dev->num_channels = ARRAY_SIZE(ads1015_channels); @@ -698,9 +704,23 @@ static const struct i2c_device_id ads1015_id[] = { }; MODULE_DEVICE_TABLE(i2c, ads1015_id); +static const struct of_device_id 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_DRV_NAME, + .of_match_table = ads1015_of_match, .pm = &ads1015_pm_ops, }, .probe = ads1015_probe, |