Hi!

> @@ -611,7 +611,7 @@ twl4030_power_configure_resources(const struct 
> twl4030_power_data *pdata)
>   * After a successful execution, TWL shuts down the power to the SoC
>   * and all peripherals connected to it.
>   */
> -void twl4030_power_off(void)
> +static void twl4030_power_off(struct power_off_handler_block *this)
>  {
>       int err;
>  
> @@ -621,6 +621,11 @@ void twl4030_power_off(void)
>               pr_err("TWL4030 Unable to power off\n");
>  }
>  
> +static struct power_off_handler_block twl4030_power_off_hb = {
> +     .handler = twl4030_power_off,
> +     .priority = POWER_OFF_PRIORITY_LOW,
> +};
> +
>  static bool twl4030_power_use_poweroff(const struct twl4030_power_data 
> *pdata,
>                                       struct device_node *node)
>  {
> @@ -839,7 +844,9 @@ static int twl4030_power_probe(struct platform_device 
> *pdev)
>       }
>  
>       /* Board has to be wired properly to use this feature */
> -     if (twl4030_power_use_poweroff(pdata, node) && !pm_power_off) {
> +     if (twl4030_power_use_poweroff(pdata, node)) {
> +             int ret;
> +
>               /* Default for SEQ_OFFSYNC is set, lets ensure this */
>               err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val,
>                                     TWL4030_PM_MASTER_CFG_P123_TRANSITION);
> @@ -856,7 +863,11 @@ static int twl4030_power_probe(struct platform_device 
> *pdev)
>                       }
>               }
>  
> -             pm_power_off = twl4030_power_off;
> +             ret = devm_register_power_off_handler(&pdev->dev,
> +                                                   &twl4030_power_off_hb);
> +             if (ret)
> +                     dev_warn(&pdev->dev,
> +                              "Failed to register power-off handler\n");
>       }
>  

Could we get rid of the "struct power_off_handler_block" and guarantee
that register_power_off never fails (or print message from the
register_power_off...)? That way, your patch would be an cleanup.

You could then add priorities if they turn out to be really
neccessary, later...
                                                                        Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) 
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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