tpm_tis: Use struct dev_pm_ops for power management

Make the tpm_tis 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() as its suspend
callback directly, without defining its own suspend callback
routine.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

1 files changed, 7 insertions, 9 deletions

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 555a643e88c..89682fa8801 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -806,27 +806,25 @@ module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
                     sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444);
 MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
 #endif
-static int tpm_tis_suspend(struct platform_device *dev, pm_message_t msg)
-{
-        return tpm_pm_suspend(&dev->dev);
-}
 
-static int tpm_tis_resume(struct platform_device *dev)
+static int tpm_tis_resume(struct device *dev)
 {
-        struct tpm_chip *chip = dev_get_drvdata(&dev->dev);
+        struct tpm_chip *chip = dev_get_drvdata(dev);
 
         if (chip->vendor.irq)
                 tpm_tis_reenable_interrupts(chip);
 
-        return tpm_pm_resume(&dev->dev);
+        return tpm_pm_resume(dev);
 }
+
+static SIMPLE_DEV_PM_OPS(tpm_tis_pm, tpm_pm_suspend, tpm_tis_resume);
+
 static struct platform_driver tis_drv = {
         .driver = {
                 .name = "tpm_tis",
                 .owner          = THIS_MODULE,
+                .pm             = &tpm_tis_pm,
         },
-        .suspend = tpm_tis_suspend,
-        .resume = tpm_tis_resume,
 };
 
 static struct platform_device *pdev;