Thread (13 messages) 13 messages, 2 authors, 2016-10-26
STALE3511d
Revisions (4)
  1. v1 [diff vs current]
  2. v4 [diff vs current]
  3. v5 [diff vs current]
  4. v6 current

[PATCH V6 04/10] dmaengine: qcom_hidma: configure DMA and MSI for OF

From: Sinan Kaya <hidden>
Date: 2016-10-19 17:52:20
Also in: linux-arm-msm, linux-devicetree, lkml
Subsystem: arm/qualcomm mailing list, dma generic offload engine subsystem, qualcomm hidma driver, the rest · Maintainers: Vinod Koul, Sinan Kaya, Linus Torvalds

Configure the DMA bindings for the device tree based firmware.

Signed-off-by: Sinan Kaya <redacted>
---
 drivers/dma/qcom/hidma_mgmt.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/qcom/hidma_mgmt.c b/drivers/dma/qcom/hidma_mgmt.c
index 82f36e4..185d29c 100644
--- a/drivers/dma/qcom/hidma_mgmt.c
+++ b/drivers/dma/qcom/hidma_mgmt.c
@@ -375,8 +375,15 @@ static int __init hidma_mgmt_of_populate_channels(struct device_node *np)
 			ret = PTR_ERR(new_pdev);
 			goto out;
 		}
+		of_node_get(child);
+		new_pdev->dev.of_node = child;
 		of_dma_configure(&new_pdev->dev, child);
-
+		/*
+		 * It is assumed that calling of_msi_configure is safe on
+		 * platforms with or without MSI support.
+		 */
+		of_msi_configure(&new_pdev->dev, child);
+		of_node_put(child);
 		kfree(res);
 		res = NULL;
 	}
-- 
1.9.1
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