pwm: dwc: access driver_data using dev_get_drvdata()

Now that we're setting driver_data using dev_set_drvdata(), we can use
dev_get_drvdata() for accessing it.
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240212130247.9985-6-raag.jadav@intel.comSigned-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

drivers/pwm/pwm-dwc.c

@@ -73,8 +73,7 @@ static void dwc_pwm_remove(struct pci_dev *pci)
 
 static int dwc_pwm_suspend(struct device *dev)
 {
-	struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
-	struct dwc_pwm *dwc = pci_get_drvdata(pdev);
+	struct dwc_pwm *dwc = dev_get_drvdata(dev);
 	int i;
 
 	for (i = 0; i < DWC_TIMERS_TOTAL; i++) {
@@ -93,8 +92,7 @@ static int dwc_pwm_suspend(struct device *dev)
 
 static int dwc_pwm_resume(struct device *dev)
 {
-	struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
-	struct dwc_pwm *dwc = pci_get_drvdata(pdev);
+	struct dwc_pwm *dwc = dev_get_drvdata(dev);
 	int i;
 
 	for (i = 0; i < DWC_TIMERS_TOTAL; i++) {