Re: [PATCH v3 2/2] max77693: added device tree support

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Hi Andrzej,

On Wednesday 21 of August 2013 18:53:34 Andrzej Hajda wrote:
> This patch adds only of_match_table.
> There are no device specific properties.
> 
> Signed-off-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
> Reviewed-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
>  drivers/mfd/max77693.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
> index 27f5da3..e0b11a9 100644
> --- a/drivers/mfd/max77693.c
> +++ b/drivers/mfd/max77693.c
> @@ -225,11 +225,19 @@ static const struct dev_pm_ops max77693_pm = {
>  	.resume = max77693_resume,
>  };
> 
> +#ifdef CONFIG_OF
> +static struct of_device_id max77693_dt_match[] = {
> +	{.compatible = "maxim,max77693"},
> +	{},
> +};
> +#endif
> +
>  static struct i2c_driver max77693_i2c_driver = {
>  	.driver = {
>  		   .name = "max77693",
>  		   .owner = THIS_MODULE,
>  		   .pm = &max77693_pm,
> +		   .of_match_table = of_match_ptr(max77693_dt_match),

As far as I'm aware of, you don't need explicit OF match table for I2C 
devices, because the I2C OF core can use the array of struct i2c_device_id 
pointed by .id_table field of struct i2c_driver.

I'm not sure if a separate OF table isn't preferred, though, so your patch 
might be fine.

Best regards,
Tomasz

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