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Message-Id: <1456119133-16114-1-git-send-email-bjorn.andersson@linaro.org> Date: Sun, 21 Feb 2016 21:32:13 -0800 From: Bjorn Andersson <bjorn.andersson@...aro.org> To: Peter Chen <Peter.Chen@....com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, linux-usb@...r.kernel.org, linux-arm-msm <linux-arm-msm@...r.kernel.org>, linux-kernel@...r.kernel.org Subject: [PATCH] usb: chipidea: Configure DMA properties and ops from DT 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@...aro.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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