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Commit 360b9ab2 authored by Hans de Goede's avatar Hans de Goede Committed by Greg Kroah-Hartman
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abituguru: Add suspend/resume support 



This patch contains rudimentary suspend / resume support for the uguru,
this protects the uguru and the driver against suspend / resume cycles,
so there is no reason to unload the driver in your suspend / resume
scripts.

Only include suspend / resume functions when CONFIG_PM is set.

Signed-off-by: default avatarHans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent b17ebc94

drivers/hwmon/abituguru.c

+28 −2
Original line number Original line Diff line number Diff line
@@ -1354,6 +1354,30 @@ static struct abituguru_data *abituguru_update_device(struct device *dev) 
		return NULL;

		return NULL;

}

}





#ifdef CONFIG_PM

static int abituguru_suspend(struct platform_device *pdev, pm_message_t state)

{

	struct abituguru_data *data = platform_get_drvdata(pdev);

	/* make sure all communications with the uguru are done and no new

	   ones are started */

	mutex_lock(&data->update_lock);

	return 0;

}



static int abituguru_resume(struct platform_device *pdev)

{

	struct abituguru_data *data = platform_get_drvdata(pdev);

	/* See if the uGuru is still ready */

	if (inb_p(data->addr + ABIT_UGURU_DATA) != ABIT_UGURU_STATUS_INPUT)

		data->uguru_ready = 0;

	mutex_unlock(&data->update_lock);

	return 0;

}

#else

#define abituguru_suspend	NULL

#define abituguru_resume	NULL

#endif /* CONFIG_PM */



static struct platform_driver abituguru_driver = {

static struct platform_driver abituguru_driver = {

	.driver = {

	.driver = {

		.owner	= THIS_MODULE,

		.owner	= THIS_MODULE,
@@ -1361,6 +1385,8 @@ static struct platform_driver abituguru_driver = { 
	},

	},

	.probe		= abituguru_probe,

	.probe		= abituguru_probe,

	.remove		= __devexit_p(abituguru_remove),

	.remove		= __devexit_p(abituguru_remove),

	.suspend	= abituguru_suspend,

	.resume		= abituguru_resume,

};

};





static int __init abituguru_detect(void)

static int __init abituguru_detect(void)