tpm_nsc: Use struct dev_pm_ops for power management

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@sisk.pl>

1 files changed, 2 insertions, 11 deletions

diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index 8e996575bdbe..640c9a427b59 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -274,22 +274,13 @@ static void tpm_nsc_remove(struct device *dev)
         }
 }
 
-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,
         },
 };