staging: fsl-mc: Changed DPRC built-in portal's mc_io to be atomic

The DPRC built-in portal's mc_io is used to send commands to the MC
to program MSIs for MC objects. This is done by the
fsl_mc_msi_write_msg() callback, which is invoked by the generic MSI
layer with interrupts disabled. As a result, the mc_io used in
fsl_mc_msi_write_msg needs to be an atomic mc_io.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-mc/bus/dprc-driver.c

@@ -396,7 +396,9 @@ static int dprc_probe(struct fsl_mc_device *mc_dev)
 		error = fsl_create_mc_io(&mc_dev->dev,
 					 mc_dev->regions[0].start,
 					 region_size,
-					 NULL, 0, &mc_dev->mc_io);
+					 NULL,
+					 FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+					 &mc_dev->mc_io);
 		if (error < 0)
 			return error;
 	}

drivers/staging/fsl-mc/bus/mc-bus.c

@@ -702,7 +702,8 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
 	mc_portal_phys_addr = res.start;
 	mc_portal_size = resource_size(&res);
 	error = fsl_create_mc_io(&pdev->dev, mc_portal_phys_addr,
-				 mc_portal_size, NULL, 0, &mc_io);
+				 mc_portal_size, NULL,
+				 FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, &mc_io);
 	if (error < 0)
 		return error;