On 15/03/17 04:44, Javier Martinez Canillas wrote:
> 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>
Applied to the togreg branch of iio.git - initially pushed out as testing for
the autobuilders to play with it.
Thanks for cleaning this up.
Jonathan
> ---
>
> drivers/iio/adc/ina2xx-adc.c | 34 +++++++++++++++++++++++++++++++++-
> 1 file changed, 33 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c
> index 3263231276ca..db9838230257 100644
> --- a/drivers/iio/adc/ina2xx-adc.c
> +++ b/drivers/iio/adc/ina2xx-adc.c
> @@ -28,6 +28,7 @@
> #include <linux/iio/sysfs.h>
> #include <linux/kthread.h>
> #include <linux/module.h>
> +#include <linux/of_device.h>
> #include <linux/regmap.h>
> #include <linux/util_macros.h>
>
> @@ -635,6 +636,7 @@ static int ina2xx_probe(struct i2c_client *client,
> struct iio_dev *indio_dev;
> struct iio_buffer *buffer;
> unsigned int val;
> + enum ina2xx_ids type;
> int ret;
>
> indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
> @@ -652,7 +654,11 @@ static int ina2xx_probe(struct i2c_client *client,
> return PTR_ERR(chip->regmap);
> }
>
> - chip->config = &ina2xx_config[id->driver_data];
> + if (client->dev.of_node)
> + type = (enum ina2xx_ids)of_device_get_match_data(&client->dev);
> + else
> + type = id->driver_data;
> + chip->config = &ina2xx_config[type];
>
> mutex_init(&chip->state_lock);
>
> @@ -726,9 +732,35 @@ static const struct i2c_device_id ina2xx_id[] = {
> };
> MODULE_DEVICE_TABLE(i2c, ina2xx_id);
>
> +static const struct of_device_id ina2xx_of_match[] = {
> + {
> + .compatible = "ti,ina219",
> + .data = (void *)ina219
> + },
> + {
> + .compatible = "ti,ina220",
> + .data = (void *)ina219
> + },
> + {
> + .compatible = "ti,ina226",
> + .data = (void *)ina226
> + },
> + {
> + .compatible = "ti,ina230",
> + .data = (void *)ina226
> + },
> + {
> + .compatible = "ti,ina231",
> + .data = (void *)ina226
> + },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, ina2xx_of_match);
> +
> static struct i2c_driver ina2xx_driver = {
> .driver = {
> .name = KBUILD_MODNAME,
> + .of_match_table = ina2xx_of_match,
> },
> .probe = ina2xx_probe,
> .remove = ina2xx_remove,
>
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