Hi!
> #include <linux/ide.h>
> #include <linux/completion.h>
> #include <linux/device.h>
> +#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_HIBERNATION)
> +# include <linux/suspend.h>
> +#endif
This ifdef should be unneccessary.
> +#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_HIBERNATION)
> +static int ide_park_count = 1;
> +DECLARE_WAIT_QUEUE_HEAD(ide_park_wq);
> +
> +static inline int suspend_parking(void)
> +{
> + spin_lock_irq(&ide_lock);
> + if (ide_park_count == 1)
> + ide_park_count = 0;
> + spin_unlock_irq(&ide_lock);
> + return !ide_park_count;
> +}
> +
> +static int ide_pm_notifier(struct notifier_block *nb, unsigned long val,
> + void *null)
> +{
> + switch (val) {
> + case PM_SUSPEND_PREPARE:
> + wait_event(ide_park_wq, suspend_parking());
> + break;
> + case PM_POST_SUSPEND:
> + ide_park_count = 1;
> + break;
> + default:
> + return NOTIFY_DONE;
> + }
> + return NOTIFY_OK;
> +}
> +
> +static struct notifier_block ide_pm_notifier_block = {
> + .notifier_call = ide_pm_notifier,
> +};
> +
> +static inline int ide_register_pm_notifier(void)
> +{
> + return register_pm_notifier(&ide_pm_notifier_block);
> +}
> +
> +static inline int ide_unregister_pm_notifier(void)
> +{
> + return unregister_pm_notifier(&ide_pm_notifier_block);
> +}
Any reason this does not use normal driver model suspend/resume
callbacks?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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