From c172d22d33de5edc26440def1ed7c2c1a1ec724c Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Wed, 15 Mar 2017 01:45:00 -0300 Subject: [PATCH] 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:. 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 Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ti-ads1015.c | 24 ++++++++++++++++++++++-- 1 file 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 +#include #include #include #include @@ -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, -- 2.30.2