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SubjectRe: [PATCH 2/3] Input: synaptics_i2c - Add OF device ID table
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 <javier@osg.samsung.com>
> ---
>
> 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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