dmaengine: nbpfaxi: Convert to RUNTIME_PM_OPS()

Convert the Renesas Type-AXI NBPF DMA driver from SET_RUNTIME_PM_OPS()
to RUNTIME_PM_OPS(), and pm_ptr(). This lets us drop the check for
CONFIG_PM, and reduces kernel size in case CONFIG_PM is disabled, while
increasing build coverage.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/nbpfaxi.c

···
 };
 MODULE_DEVICE_TABLE(platform, nbpf_ids);
 
-#ifdef CONFIG_PM
 static int nbpf_runtime_suspend(struct device *dev)
 {
 	struct nbpf_device *nbpf = dev_get_drvdata(dev);
···
 	struct nbpf_device *nbpf = dev_get_drvdata(dev);
 	return clk_prepare_enable(nbpf->clk);
 }
-#endif
 
 static const struct dev_pm_ops nbpf_pm_ops = {
-	SET_RUNTIME_PM_OPS(nbpf_runtime_suspend, nbpf_runtime_resume, NULL)
+	RUNTIME_PM_OPS(nbpf_runtime_suspend, nbpf_runtime_resume, NULL)
 };
 
 static struct platform_driver nbpf_driver = {
 	.driver = {
 		.name = "dma-nbpf",
 		.of_match_table = nbpf_match,
-		.pm = &nbpf_pm_ops,
+		.pm = pm_ptr(&nbpf_pm_ops),
 	},
 	.id_table = nbpf_ids,
 	.probe = nbpf_probe,