Hi,

the same here. I'm unable to test it, but it compiles cleanly.

Acked-by: Tobias Lorenz <[email protected]>

Bye,
Toby

Am Donnerstag 03 Dezember 2009 13:57:29 schrieb Joonyoung Shim:
> This patch is to support PM of the si470x i2c driver.
> 
> Signed-off-by: Joonyoung Shim <[email protected]>
> ---
>  drivers/media/radio/si470x/radio-si470x-i2c.c |   40 
> +++++++++++++++++++++++++
>  1 files changed, 40 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c 
> b/drivers/media/radio/si470x/radio-si470x-i2c.c
> index 77532e6..4c6e586 100644
> --- a/drivers/media/radio/si470x/radio-si470x-i2c.c
> +++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
> @@ -486,6 +486,44 @@ static __devexit int si470x_i2c_remove(struct i2c_client 
> *client)
>  }
>  
>  
> +#ifdef CONFIG_PM
> +/*
> + * si470x_i2c_suspend - suspend the device
> + */
> +static int si470x_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
> +{
> +     struct si470x_device *radio = i2c_get_clientdata(client);
> +
> +     /* power down */
> +     radio->registers[POWERCFG] |= POWERCFG_DISABLE;
> +     if (si470x_set_register(radio, POWERCFG) < 0)
> +             return -EIO;
> +
> +     return 0;
> +}
> +
> +
> +/*
> + * si470x_i2c_resume - resume the device
> + */
> +static int si470x_i2c_resume(struct i2c_client *client)
> +{
> +     struct si470x_device *radio = i2c_get_clientdata(client);
> +
> +     /* power up : need 110ms */
> +     radio->registers[POWERCFG] |= POWERCFG_ENABLE;
> +     if (si470x_set_register(radio, POWERCFG) < 0)
> +             return -EIO;
> +     msleep(110);
> +
> +     return 0;
> +}
> +#else
> +#define si470x_i2c_suspend   NULL
> +#define si470x_i2c_resume    NULL
> +#endif
> +
> +
>  /*
>   * si470x_i2c_driver - i2c driver interface
>   */
> @@ -496,6 +534,8 @@ static struct i2c_driver si470x_i2c_driver = {
>       },
>       .probe                  = si470x_i2c_probe,
>       .remove                 = __devexit_p(si470x_i2c_remove),
> +     .suspend                = si470x_i2c_suspend,
> +     .resume                 = si470x_i2c_resume,
>       .id_table               = si470x_i2c_id,
>  };
>  
> 
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