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Subject[PATCH] usb: chipidea: Configure DMA properties and ops from DT
Date
On certain platforms (e.g. ARM64) the dma_ops needs to be explicitly set
to be able to do DMA allocations, so use the of_dma_configure() helper
to populate the dma properties and assign an appropriate dma_ops.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
drivers/usb/chipidea/core.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 7404064b9bbc..047b9d4e67aa 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -62,6 +62,7 @@
#include <linux/usb/chipidea.h>
#include <linux/usb/of.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/phy.h>
#include <linux/regulator/consumer.h>
#include <linux/usb/ehci_def.h>
@@ -834,6 +835,9 @@ struct platform_device *ci_hdrc_add_device(struct device *dev,
pdev->dev.dma_parms = dev->dma_parms;
dma_set_coherent_mask(&pdev->dev, dev->coherent_dma_mask);

+ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
+ of_dma_configure(&pdev->dev, dev->of_node);
+
ret = platform_device_add_resources(pdev, res, nres);
if (ret)
goto err;
--
2.5.0
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