accel/ivpu: Make ivpu_pm_init() void

ivpu_pm_init() does not return any error, make it void.
Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901094957.168898-4-stanislaw.gruszka@linux.intel.com

drivers/accel/ivpu/ivpu_drv.c

@@ -551,9 +551,7 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
 	if (ret)
 		goto err_fw_fini;
 
-	ret = ivpu_pm_init(vdev);
-	if (ret)
-		goto err_ipc_fini;
+	ivpu_pm_init(vdev);
 
 	ret = ivpu_job_done_thread_init(vdev);
 	if (ret)

drivers/accel/ivpu/ivpu_pm.c

@@ -282,7 +282,7 @@ void ivpu_pm_reset_done_cb(struct pci_dev *pdev)
 	pm_runtime_put_autosuspend(vdev->drm.dev);
 }
 
-int ivpu_pm_init(struct ivpu_device *vdev)
+void ivpu_pm_init(struct ivpu_device *vdev)
 {
 	struct device *dev = vdev->drm.dev;
 	struct ivpu_pm_info *pm = vdev->pm;
@@ -303,8 +303,6 @@ int ivpu_pm_init(struct ivpu_device *vdev)
 	pm_runtime_set_autosuspend_delay(dev, delay);
 
 	ivpu_dbg(vdev, PM, "Autosuspend delay = %d\n", delay);
-
-	return 0;
 }
 
 void ivpu_pm_cancel_recovery(struct ivpu_device *vdev)

drivers/accel/ivpu/ivpu_pm.h

@@ -19,7 +19,7 @@ struct ivpu_pm_info {
 	u32 suspend_reschedule_counter;
 };
 
-int ivpu_pm_init(struct ivpu_device *vdev);
+void ivpu_pm_init(struct ivpu_device *vdev);
 void ivpu_pm_enable(struct ivpu_device *vdev);
 void ivpu_pm_disable(struct ivpu_device *vdev);
 void ivpu_pm_cancel_recovery(struct ivpu_device *vdev);