On Tue, Feb 21, 2017 at 03:12:53PM -0300, 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.

This driver is for touchpad controller on a specific device, and as far
as I understand, for a specific firmware. I am not sure if it will ever
be reused.

Igor, maybe we need to drop it altogether?

> 
> Signed-off-by: Javier Martinez Canillas <[email protected]>
> ---
> 
>  drivers/input/mouse/synaptics_i2c.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/input/mouse/synaptics_i2c.c 
> b/drivers/input/mouse/synaptics_i2c.c
> index cb2bf203f4ca..8538318d332c 100644
> --- a/drivers/input/mouse/synaptics_i2c.c
> +++ b/drivers/input/mouse/synaptics_i2c.c
> @@ -652,9 +652,18 @@ static const struct i2c_device_id 
> synaptics_i2c_id_table[] = {
>  };
>  MODULE_DEVICE_TABLE(i2c, synaptics_i2c_id_table);
>  
> +#ifdef CONFIG_OF
> +static const struct of_device_id synaptics_i2c_of_match[] = {
> +     { .compatible = "synaptics,synaptics_i2c", },
> +     { },
> +};
> +MODULE_DEVICE_TABLE(of, synaptics_i2c_of_match);
> +#endif
> +
>  static struct i2c_driver synaptics_i2c_driver = {
>       .driver = {
>               .name   = DRIVER_NAME,
> +             .of_match_table = of_match_ptr(synaptics_i2c_of_match),
>               .pm     = &synaptics_i2c_pm,
>       },
>  
> -- 
> 2.9.3
> 

-- 
Dmitry

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