diff mbox series

[07/11] of: address: Follow DMA parent for "dma-coherent"

Message ID 20190927002455.13169-8-robh@kernel.org (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show
Series of: dma-ranges fixes and improvements | expand

Commit Message

Rob Herring (Arm) Sept. 27, 2019, 12:24 a.m. UTC 
From: Robin Murphy <robin.murphy@arm.com>

Much like for address translation, when checking for DMA coherence we
should be sure to walk up the DMA hierarchy, rather than the MMIO one,
now that we can accommodate them being different.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/of/address.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/of/address.c b/drivers/of/address.c
index e9188c82fdae..3fd34f7ad772 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -999,7 +999,7 @@  bool of_dma_is_coherent(struct device_node *np)
 			of_node_put(node);
 			return true;
 		}
-		node = of_get_next_parent(node);
+		node = of_get_next_dma_parent(node);
 	}
 	of_node_put(node);
 	return false;