linux-kernel - [PATCH 1/4] hwmon / abituguru: Use struct dev_pm

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Date:	Sat, 7 Jul 2012 23:04:09 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Linux PM list <linux-pm@...r.kernel.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Alistair John Strachan <alistair@...zero.co.uk>,
	lm-sensors@...sensors.org, Jean Delvare <khali@...ux-fr.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Kukjin Kim <kgene.kim@...sung.com>
Subject: [PATCH 1/4] hwmon / abituguru: Use struct dev_pm_ops for power management

From: Rafael J. Wysocki <rjw@...k.pl>

Make the Abit uGuru driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/hwmon/abituguru.c |   21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

Index: linux/drivers/hwmon/abituguru.c
===================================================================
--- linux.orig/drivers/hwmon/abituguru.c
+++ linux/drivers/hwmon/abituguru.c
@@ -1514,9 +1514,11 @@ LEAVE_UPDATE:
 }
 
 #ifdef CONFIG_PM
-static int abituguru_suspend(struct platform_device *pdev, pm_message_t state)
+static int abituguru_suspend(struct device *dev)
 {
-	struct abituguru_data *data = platform_get_drvdata(pdev);
+	struct abituguru_data *data;
+
+	data = platform_get_drvdata(to_platform_device(dev));
 	/*
 	 * make sure all communications with the uguru are done and no new
 	 * ones are started
@@ -1525,29 +1527,32 @@ static int abituguru_suspend(struct plat
 	return 0;
 }
 
-static int abituguru_resume(struct platform_device *pdev)
+static int abituguru_resume(struct device *dev)
 {
-	struct abituguru_data *data = platform_get_drvdata(pdev);
+	struct abituguru_data *data;
+
+	data = platform_get_drvdata(to_platform_device(dev));
 	/* 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;
 }
+
+static SIMPLE_DEV_PM_OPS(abituguru_pm, abituguru_suspend, abituguru_resume);
+#define ABIT_UGURU_PM	(&abituguru_pm)
 #else
-#define abituguru_suspend	NULL
-#define abituguru_resume	NULL
+#define ABIT_UGURU_PM	NULL
 #endif /* CONFIG_PM */
 
 static struct platform_driver abituguru_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
 		.name	= ABIT_UGURU_NAME,
+		.pm	= ABIT_UGURU_PM,
 	},
 	.probe		= abituguru_probe,
 	.remove		= __devexit_p(abituguru_remove),
-	.suspend	= abituguru_suspend,
-	.resume		= abituguru_resume,
 };
 
 static int __init abituguru_detect(void)

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