Re: [PATCH] hwmon: tmp102: Add device tree support

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Hi Sourav,

On 08/03/2012 02:35 PM, Sourav Poddar wrote:
> update tmp102 temperature sensor to also use device tree.
> 
> Cc: Benoit Cousson <b-cousson@xxxxxx>
> Cc: Felipe Balbi <balbi@xxxxxx>
> Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
> Acked-by: Felipe Balbi <balbi@xxxxxx>
> Signed-off-by: Sourav Poddar <sourav.poddar@xxxxxx>
> ---
>  drivers/hwmon/tmp102.c |   14 +++++++++++++-
>  1 files changed, 13 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
> index 0d466b9..a8a9060 100644
> --- a/drivers/hwmon/tmp102.c
> +++ b/drivers/hwmon/tmp102.c
> @@ -26,6 +26,7 @@
>  #include <linux/err.h>
>  #include <linux/mutex.h>
>  #include <linux/device.h>
> +#include <linux/of.h>
>  
>  #define	DRIVER_NAME "tmp102"
>  
> @@ -284,8 +285,19 @@ static const struct i2c_device_id tmp102_id[] = {
>  };
>  MODULE_DEVICE_TABLE(i2c, tmp102_id);
>  
> +#ifdef CONFIG_OF
> +static const struct of_device_id temperature_dt_match[] = {
> +	{ .compatible = "ti,tmp102" },

Are you sure this is needed for this device?

There is an automatic binding done for I2C devices in the of_i2c core
code. So in theory, DT will be able to bind to any I2C device using the
already existing table: MODULE_DEVICE_TABLE(i2c, tmp102_id).

So I think this patch should not be needed.

Regards,
Benoit

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