[PATCH 4/4] tpm_nsc: Use struct dev_pm_ops for power management

[Rafael J. Wysocki]

From: Rafael J. Wysocki <rjw@xxxxxxx>

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

This allows the driver to use tpm_pm_suspend() and tpm_pm_resume()
as its PM callbacks directly, without defining its own PM callback
routines.

Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
---
 drivers/char/tpm/tpm_nsc.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

Index: linux/drivers/char/tpm/tpm_nsc.c
===================================================================
--- linux.orig/drivers/char/tpm/tpm_nsc.c
+++ linux/drivers/char/tpm/tpm_nsc.c
@@ -274,22 +274,13 @@ static void tpm_nsc_remove(struct device
 	}
 }
 
-static int tpm_nsc_suspend(struct platform_device *dev, pm_message_t msg)
-{
-	return tpm_pm_suspend(&dev->dev);
-}
-
-static int tpm_nsc_resume(struct platform_device *dev)
-{
-	return tpm_pm_resume(&dev->dev);
-}
+static SIMPLE_DEV_PM_OPS(tpm_nsc_pm, tpm_pm_suspend, tpm_pm_resume);
 
 static struct platform_driver nsc_drv = {
-	.suspend         = tpm_nsc_suspend,
-	.resume          = tpm_nsc_resume,
 	.driver          = {
 		.name    = "tpm_nsc",
 		.owner   = THIS_MODULE,
+		.pm      = &tpm_nsc_pm,
 	},
 };
 

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