ata: pata_cmd640: convert printk() calls

Convert printk() calls to structured logging.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/pata_cmd640.c

@@ -61,7 +61,7 @@ static void cmd640_set_piomode(struct ata_port *ap, struct ata_device *adev)
 	struct ata_device *pair = ata_dev_pair(adev);
 
 	if (ata_timing_compute(adev, adev->pio_mode, &t, T, 0) < 0) {
-		printk(KERN_ERR DRV_NAME ": mode computation failed.\n");
+		ata_dev_err(adev, DRV_NAME ": mode computation failed.\n");
 		return;
 	}