diff mbox series

[v2,15/21] media: ti-vpe: Set the DMA mask and coherent mask

Message ID 20191004162952.4963-16-bparrot@ti.com (mailing list archive)
State New, archived
Headers show
Series media: vpe: maintenance | expand

Commit Message

Benoit Parrot Oct. 4, 2019, 4:29 p.m. UTC 
VPE uses VPDMA (built-in dma engine) to transfer data to and from the IP
and memory. VPDMA expect 32 bits addresses. To make sure that is always
the case set the DMA mask and coherent mask for the device.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
---
 drivers/media/platform/ti-vpe/vpe.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index ad9d8b559cad..d7f8eb901475 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -2517,6 +2517,13 @@  static int vpe_probe(struct platform_device *pdev)
 	struct vpe_dev *dev;
 	int ret, irq, func;
 
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(&pdev->dev,
+			"32-bit consistent DMA enable failed\n");
+		return ret;
+	}
+
 	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;