On Tue, 04 Apr 2017, 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 a
> OF device ID table if the devices are registered via OF.
>
> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
>
> ---
>
> Changes in v4:
> - Drop -mfd suffix in compatible string (Lee Jones).
>
> Changes in v3:
> - Add a vendor prefix to the compatible string (Rob Herring).
>
> Changes in v2:
> - Don't use of_match_ptr() to avoid build warning when CONFIG_OF is disabled.
>
> drivers/mfd/retu-mfd.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
For my own reference:
Acked-for-MFD-by: Lee Jones <lee.jones@xxxxxxxxxx>
> diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c
> index 53e1d386d2c0..e7d27b7861c1 100644
> --- a/drivers/mfd/retu-mfd.c
> +++ b/drivers/mfd/retu-mfd.c
> @@ -308,9 +308,17 @@ static const struct i2c_device_id retu_id[] = {
> };
> MODULE_DEVICE_TABLE(i2c, retu_id);
>
> +static const struct of_device_id retu_of_match[] = {
> + { .compatible = "nokia,retu" },
> + { .compatible = "nokia,tahvo" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, retu_of_match);
> +
> static struct i2c_driver retu_driver = {
> .driver = {
> .name = "retu-mfd",
> + .of_match_table = retu_of_match,
> },
> .probe = retu_probe,
> .remove = retu_remove,
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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