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@xxxxxxxxxxxxxxx>
---
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 <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,
--
2.9.3
--
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