From: Nipun Gupta <nipun.gupta@nxp.com>
Date: Mon, 10 Sep 2018 19:19:20 +0530
Subject: bus/fsl-mc: set coherent dma mask for devices on fsl-mc bus

Git-commit: 761ba8ed114b23238238d062a119d3920aaa59df
Patch-mainline: v4.20-rc1
References: fate#326538

of_dma_configure() API expects coherent_dma_mask to be correctly
set in the devices. This patch does the needful.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 drivers/bus/fsl-mc/fsl-mc-bus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index fa43c7dc6b9e..624828b1d21f 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -627,6 +627,7 @@ int fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc,
 		mc_dev->icid = parent_mc_dev->icid;
 		mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK;
 		mc_dev->dev.dma_mask = &mc_dev->dma_mask;
+		mc_dev->dev.coherent_dma_mask = mc_dev->dma_mask;
 		dev_set_msi_domain(&mc_dev->dev,
 				   dev_get_msi_domain(&parent_mc_dev->dev));
 	}
-- 
2.11.0