Re: [PATCH v5 05/15] iio: sx9310: Change from .probe to .probe_new

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On Mon,  3 Aug 2020 17:58:05 -0600
Daniel Campello <campello@xxxxxxxxxxxx> wrote:

> Uses .probe_new in place of .probe. Also uses device_get_match_data()
> for whoami matching.
> 
> Signed-off-by: Daniel Campello <campello@xxxxxxxxxxxx>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Applied,

Thanks,

Jonathan

> ---
> 
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2:
>  - Added '\n' to dev_err()
> 
>  drivers/iio/proximity/sx9310.c | 39 ++++++++++++----------------------
>  1 file changed, 14 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/iio/proximity/sx9310.c b/drivers/iio/proximity/sx9310.c
> index 9daf2b8591a0a0..66ecdd309e0ddc 100644
> --- a/drivers/iio/proximity/sx9310.c
> +++ b/drivers/iio/proximity/sx9310.c
> @@ -139,7 +139,7 @@ struct sx9310_data {
>  	struct completion completion;
>  	unsigned int chan_read, chan_event;
>  	int channel_users[SX9310_NUM_CHANNELS];
> -	int whoami;
> +	unsigned int whoami;
>  };
>  
>  static const struct iio_event_spec sx9310_events[] = {
> @@ -858,24 +858,15 @@ static int sx9310_init_device(struct iio_dev *indio_dev)
>  
>  static int sx9310_set_indio_dev_name(struct device *dev,
>  				     struct iio_dev *indio_dev,
> -				     const struct i2c_device_id *id, int whoami)
> +				     unsigned int whoami)
>  {
> -	const struct acpi_device_id *acpi_id;
> -
> -	/* id will be NULL when enumerated via ACPI */
> -	if (id) {
> -		if (id->driver_data != whoami)
> -			dev_err(dev, "WHOAMI does not match i2c_device_id: %s",
> -				id->name);
> -	} else if (ACPI_HANDLE(dev)) {
> -		acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
> -		if (!acpi_id)
> -			return -ENODEV;
> -		if (acpi_id->driver_data != whoami)
> -			dev_err(dev, "WHOAMI does not match acpi_device_id: %s",
> -				acpi_id->id);
> -	} else
> +	unsigned int long ddata;
> +
> +	ddata = (uintptr_t)device_get_match_data(dev);
> +	if (ddata != whoami) {
> +		dev_err(dev, "WHOAMI does not match device data: %u\n", whoami);
>  		return -ENODEV;
> +	}
>  
>  	switch (whoami) {
>  	case SX9310_WHOAMI_VALUE:
> @@ -885,15 +876,14 @@ static int sx9310_set_indio_dev_name(struct device *dev,
>  		indio_dev->name = "sx9311";
>  		break;
>  	default:
> -		dev_err(dev, "unexpected WHOAMI response: %u", whoami);
> +		dev_err(dev, "unexpected WHOAMI response: %u\n", whoami);
>  		return -ENODEV;
>  	}
>  
>  	return 0;
>  }
>  
> -static int sx9310_probe(struct i2c_client *client,
> -			const struct i2c_device_id *id)
> +static int sx9310_probe(struct i2c_client *client)
>  {
>  	int ret;
>  	struct iio_dev *indio_dev;
> @@ -919,8 +909,7 @@ static int sx9310_probe(struct i2c_client *client,
>  		return ret;
>  	}
>  
> -	ret = sx9310_set_indio_dev_name(&client->dev, indio_dev, id,
> -					data->whoami);
> +	ret = sx9310_set_indio_dev_name(&client->dev, indio_dev, data->whoami);
>  	if (ret < 0)
>  		return ret;
>  
> @@ -1033,8 +1022,8 @@ static const struct acpi_device_id sx9310_acpi_match[] = {
>  MODULE_DEVICE_TABLE(acpi, sx9310_acpi_match);
>  
>  static const struct of_device_id sx9310_of_match[] = {
> -	{ .compatible = "semtech,sx9310" },
> -	{ .compatible = "semtech,sx9311" },
> +	{ .compatible = "semtech,sx9310", (void *)SX9310_WHOAMI_VALUE },
> +	{ .compatible = "semtech,sx9311", (void *)SX9311_WHOAMI_VALUE },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(of, sx9310_of_match);
> @@ -1053,7 +1042,7 @@ static struct i2c_driver sx9310_driver = {
>  		.of_match_table = sx9310_of_match,
>  		.pm = &sx9310_pm_ops,
>  	},
> -	.probe		= sx9310_probe,
> +	.probe_new	= sx9310_probe,
>  	.id_table	= sx9310_id,
>  };
>  module_i2c_driver(sx9310_driver);





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