iommu/arm-smmu: Make remove callback message more informative

Currently on reboot/shutdown, the following messages are
displayed on the console as error messages before the
system reboots/shutdown as part of remove callback.

On SC7180:

  arm-smmu 15000000.iommu: removing device with active domains!
  arm-smmu 5040000.iommu: removing device with active domains!

Make this error message more informative and less scary.

Reported-by: Douglas Anderson <[email protected]>
Suggested-by: Robin Murphy <[email protected]>
Signed-off-by: Sai Prakash Ranjan <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[will: use dev_notice() as per Robin]
Signed-off-by: Will Deacon <[email protected]>

Author: Sai Prakash Ranjan

drivers/iommu/arm-smmu.c

@@ -2244,7 +2244,7 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
 		return -ENODEV;
 
 	if (!bitmap_empty(smmu->context_map, ARM_SMMU_MAX_CBS))
-		dev_err(&pdev->dev, "removing device with active domains!\n");
+		dev_notice(&pdev->dev, "disabling translation\n");
 
 	arm_smmu_bus_init(NULL);
 	iommu_device_unregister(&smmu->iommu);